ThinkWiki - User contributions [en]

Talk:How to get the internal SD card working

2006-07-28T19:16:44Z

Viss:

I wonder when support for sony memory sticks will be written in? :)

I'm looking forward to it!

-Dan
dan@itkinetix.com

Talk:HDAPS

2006-07-21T20:22:05Z

Viss: hdaps and /sys

So, this is in the stable kernel now, but what userspace program do we need to actually park the heads?
--[[User:MrStaticVoid|MrStaticVoid]] 01:26, 30 Oct 2005 (CEST)
----
Yes the hdaps driver is in the 2.6.14 kernel, but support to park the heads quickly and freeze the disk queue (to prevent the heads from getting un-parked) is not. There is some disagreement into how that should be implemented.

In other words, the hdaps driver for the moment is rather useless, unless you want to use it to play games.

--[[User:Tonko|Tonko]] 02:10, 30 Oct 2005 (CEST)

----
I head rumours that you can make SDL handle this like a joystick, e.g. for playing Neverball. Can anyone confirm or deny that? Thanx --[[User:Nomeata|Nomeata]] 01:16, 16 Nov 2005 (CET)

Yes it is possible to use it as a joystick, as Tonko allready mentioned.
/dev/input/jsX modprobe joydev

Ozi

Thanks, I didn't have the joydev module. Rebuilding... --[[User:129.13.186.1|129.13.186.1]] 15:30, 16 Nov 2005 (CET)

----
Yeah, it's a pretty good party trick - set up the HDAPS joystick as xmame input. You can play Ms. Pac-man by tilting your laptop to make pac-man navigate the maze. You can imagine that the pac-man "rolls" downhill, just like those old wooden marble-puzzles that you see around. Heh, can actually clear a level or two.

Marble madness was strangely unsatisfying though, and just didn't work well (probably due to the diagonal nature of the screen in that game).

--[[User:gsmenden|gsmenden]] 20:10, 13 Jan 2006 (CEST)

----
Anyone got the queue freezing patch running on 2.6.16? I'm going to try to manually merge it but didn't want to duplicate someone else's work.

--[[User:Ajbarr|Ajbarr]] 19:12, 22 March 2006 (CET)

== I hawe a problem ==

I tray to start working my IBM x40 with hdaps function but I can't make it right.

The main problem is in a not hanging variables when I read
/sys/devices/platform/hdaps/position

==I also have this problem!==
Hi, I also have this problem that on my X40 the device/platform/hdaps/position does not give the right response. It is simply constant (128,1).
Does anyone have a clue? I use the suse kernel 2.6.16.13-4-default from suse10.1. the hdaps sources in that kernel are the same as in the original kernel.
thanks in advance,
----

Does the HDAPS sensor work under Windows (as observed from actual disk parking, or the graphical animation)?
Also, try loading [[tp_smapi]], it includes some patches for the hdaps driver. Does it help?

--[[User:Thinker|Thinker]] 16:45, 8 June 2006 (CEST)
----

HI Again,
HDAPS does work under windows. When I had windows running and then reboot the machine, hdaps is running under suse10.1 also. If I, however, turn off the machine and restart it, then, hdaps does *not* work anymore.
I remember that with suse 10.0 and the separate module, hdaps did work.
HDAPS now works with tp_smapi as suggested above.
Still, where does the problem derive from?

----

The hdaps in the vanilla kernel has some bugs (i.e., in doesn't talk to the hardware correctly) which tp_smapi fixes. Looks like you've hit one of these.

--[[User:Thinker|Thinker]] 18:05, 12 June 2006 (CEST)
----

==laptop acpi problem with hdaps==
My my both IBM T42/T43 laptops freezes time to times with the follow:

kernel 2.6.16/sata patch 
hdaps build as a module from the kernel.
tp_smapi 0.20/hdapsd

The freez is quite common then I access CD-ROM,but it also might freez without touching anything. 
After the freez keyboard doesn't work or priting some character,power button doesn't work, however mouse might continue to work. 
KDE battery systray shows discarchged batteries. 
Still under investigation that cases the problem. 
The related software:
khdapsmon 0.1.2 
ibm-acpi build-in as a module from the kernel(for ksensors)
modified ksensors without lm_sensors with a patch
http://bugs.gentoo.org/show_bug.cgi?id=116661

--noname 00:25, 13 June 2006 (CEST)Anton

----

You're the 2nd one reporting this. The fact you can reproduce it on two machines may be very helpful! Are these machines configured identically? Do they run the same software? Can you send your kernel .config, and precise kernel version + patches, to the e-mail address in the tp_smapi README? Please specify which hdaps or tp_smapi -related applications you're typically running.

BTW, if you have [[swsusp]] or [[Software Suspend 2]] installed, you can do a suspend-to-disk cycle to recover from the hang.

--[[User:Thinker|Thinker]] 11:53, 13 June 2006 (CEST)
----

I also have the follow
[[Problems_with_SATA_and_Linux#No_DMA_on_DVD_drive]].
So I switched cdrom driver from IDE to ATA and it fixed the problem.
However HDAPS has stared to freez a machine if I shake it then HDD is active.
The issue might be not related to ACPI but I'll log it here for now.

I'll send configs. Thank you.
ps. 0.21 is out so let me try the new version.
--noname 08:34, 22 June 2006 (CEST)Anton

== hdaps and /sys ==

Hey Fellas,

I've just upgraded from 2.6.15.2, where the patches all dropped in ok and all was well, to 2.6.17.6, where hdaps is built into the kernel.
the hdapsd daemon referenced on thinkwiki looks in /sys/block/<drive>/queue/protect to get started.
The default drivers that come with 2.6.17.6 for hdaps apparently dont put anything in /queue there, so there is no 'protect' directory.
Has anyone else experienced this? I'd love to get my drive protection back :)
ON THE UPSIDE! - the Ricoh card reader in my z60m came to life, and I can read sd cards (but not sony memory sticks, oddly enough)
Any input would be awesome!
dan@itkinetix.com

Talk:How to enable integrated fingerprint reader with BioAPI

2006-02-05T19:32:59Z

Viss:

== chmod 777 -R /usr/local/var/bioapi/ ==

Is the above necessary? I just made a debian package of xscreensaver with the patch applied, and when using the bioapi debian pacakge from [http://www.qrivy.net/~michael/temp/ Michael R. Crusoe's site] which has this directory put in /usr/var/bioapi I had not to change the permissions to world-writeable there. Write access to the logfile and usb device are necessary, but that directory works with 755 as well (even though it comes with 777 in Michael's package), and all files and subdirectories are 644/755 too.

--[[User:Spiney|spiney]] 00:08, 11 Nov 2005 (CET)
----

== Qt Compilation Success ==

Here it worked with qt ;)

--

I didn't get it to work anyway, but I'm curious about your Qt version(s) as it seemed to want Qt 3 when I was playing with it.

--[[User:Keegan|keegan]] 05:07, 24 Dec 2005 (CET)

== using absolute paths for commands ==

I don't know whether using absolute paths in the articles is a good idea, at least not for tools like {{cmd|lsusb|}} which are not established utilities (i.e. used for more than a decade or something ;)) and happen to be in different locations in different distributions. E.g. said {{cmd|lsusb|}} resides in {{path|/usr/sbin|}} on Debian systems.

--[[User:Spiney|spiney]] 16:45, 12 Nov 2005 (CET)
----

I'm using debian testing and it's in {{path|/usr/bin|}}. I agree that the confusion is bad; dropping the absolute paths and adding a general note about checking {{cmd|$PATH|}} in case of problems is probably good.

--[[User:keegan|keegan]]

== BioAPI error #3 ==

Its kind of strage it used to work with everythig (kdm,console,lock,etc)
Now it only works with kdm. It allways gives back:

pam_bioapi[8113]: Unable to initialize Bioapi framework, BioAPI error #:3.

Even when I set the right permissions on /proc/bus/usb.

I am able to run the Sample program as normal user after setting the permissions, but when I change within a user session by su I amnot able to run the Sample program a also get an error Code #3.

From an other terminal (alt+strg+Fx) I am able to run the Sample program but at the login I still get the error #3.

I cant remember to have changed anything an d bevor I was able to login in a console with my fingerprint now only kdm is working even kde lock-session
isnt working anymore.

Any suggestions ?

==Permission errors exclusive to xscreensaver==

I followed the instructions above and got everything working, including non-root programs like xscreensaver. However, the script to change usbfs permissions is finicky and fails to work with a lot of things like suspend/resume. Therefore, I switched to specifying <tt>devgid=108,devmode=0660,busgid=108,busmode=0770,listgid=108,listmode=0660</tt> as mount parameters for usbfs, where group 108 is a group I created and added my normal user to. This seems like a much better way of doing things, and it almost works. However, xscreensaver (using the newer patch) gives the familiar <tt>Unable to load BioAPI BSP with UUID of <nowiki>{</nowiki>5550454b-2054-464d-2f45-535320425350<nowiki>}</nowiki>, BioAPI error #194d.</tt> error in {{path|/var/log/auth.log|}}. I don't think this is a straightfoward permissions problem because
<ul>
<li>the permissions in {{path|/proc/bus/usb|}} are correct by inspection</li>
<li>I can write to the device file as my normal user</li>
<li>other programs like {{cmd|test_verify-pam_bioapi|}} and [http://pamtester.sourceforge.net/ {{cmd|pamtester|}}] work as my normal user</li>
<li>the weirdest one: xscreensaver works when the {{cmd|xscreensaver|}} daemon is launched from within {{cmd|strace|}}. It's still running as my normal user ({{cmd|strace|}} is not setuid root). I have absolutely no idea what would cause this. I thought it might be an environment issue, but the difference in environment between the {{cmd|strace|}} session and my normal session is trivial.</li>
</ul>

At this point I'm hoping it's something dumb, but I'm out of ideas. The {{cmd|xscreensaver|}} error is <tt>pam_authenticate (...) ==> 7 (Authentication failure)</tt>, for the record.

--[[User:keegan|keegan]]
----

Could you provide all the log lines between pam_start and pam_end when running {{cmd|xscreensaver -verbose|}}?

BTW, the idea with using the mount options for usbfs is very good, maybe you should add that info to the article page? I use the permission changing script without problems, also after resume, but the usbfs version is probably easier to set up, most people will be able to find {{path|/etc/fstab|}}.

--[[User:Spiney|spiney]] 10:12, 23 Dec 2005 (CET)
----
<pre>
xscreensaver: 20:56:01: alternative_pam: 1 -> pam service: xscreensaver-alternative
xscreensaver: 20:56:01: pam_start ("xscreensaver-alternative", "keegan", ...) ==> 0 (Success)
xscreensaver: 20:56:01: pam_set_item (p, PAM_TTY, ":0.0") ==> 0 (Success)
xscreensaver: 20:56:01: PAM ECHO_OFF("Password: ") ==> password
xscreensaver: 20:56:03: pam_authenticate (...) ==> 7 (Authentication failure)
xscreensaver: 20:56:03: pam_end (...) ==> 0 (Success)
xscreensaver: 20:56:03: prompting for password.
xscreensaver: 20:56:03: 0: creating password dialog.
xscreensaver: 20:56:03: 0: mouse is at 442,412.
xscreensaver: 20:56:03: grabbing server...
xscreensaver: 20:56:03: 0: ungrabbing mouse (was 0x48).
xscreensaver: 20:56:03: 0: grabbing mouse on 0xe0002b... GrabSuccess.
xscreensaver: 20:56:03: ungrabbing server.
xscreensaver: 20:56:05: alternative_pam: 12582928 -> pam service: xscreensaver
xscreensaver: 20:56:05: pam_start ("xscreensaver", "keegan", ...) ==> 0 (Success)
xscreensaver: 20:56:05: pam_set_item (p, PAM_TTY, ":0.0") ==> 0 (Success)
xscreensaver: 20:56:05: PAM ECHO_OFF("Password: ") ==> password
xscreensaver: 20:56:05: pam_authenticate (...) ==> 0 (Success)
xscreensaver: 20:56:05: pam_acct_mgmt (...) ==> 9 (Authentication service cannot retrieve authentication info.)
xscreensaver: 20:56:05: pam_setcred (...) ==> 0 (Success)
xscreensaver: 20:56:05: pam_end (...) ==> 0 (Success)
xscreensaver: 20:56:05: password correct.
</pre>
So we've got the first attempt with {{cmd|pam_bioapi|}}, which fails immediately (no sign of the GUI fingerprint prompt, nor a "silent" chance to swipe the finger as with xdm), then the fallback to {{cmd|pam_unix|}} which succeeds. Earlier I had xscreensaver set up to only try {{cmd|pam_bioapi|}}, with essentially the same result -- it gives up on pam entirely and does unix auth itself.

I'd really like to strace the pam module and see what it's attempting to do to {{path|/proc/bus/usb|}}, but as that actually fixes the problem I'm kinda at a loss. Maybe there's some kernel option to print debugging info for usbfs? I'd be all for changing the article to suggest using mount options in {{path|/etc/fstab|}}, if it weren't for this one weird bug. Has anyone else had the same problem?

-- [[User:keegan|keegan]]

==Driver Expiring!!!==
Don't anyone notice that both betas of the UPEK driver is expiring in
about a month in the new year, Jan 1st 2006? They really mean it!
I set my computer date to next year and get a message "the driver has expired" when using fingerprint reader! This is a grave threat to our computer lifestyle, i.e. for those of us who got it working and use it
daily:)
Is there any workaround other than setting the date back a year when
new year come and wait for new driver? Is there a way to figure out where exactly in the driver it checked the date and how? The must have set it
somewhere in file libtfmessbsp.so, but it is binary and I can't figure out how to Reverse Engineer it.

---Jiang

Yes, the beta driver will expire. The final version (which is due REALLY soon now) will not.

Sumedha

Any news? Just 9 days left to expiry. --[[User:Thinker|Thinker]] 21:36, 22 Dec 2005 (CET)

The final is out, get it at [http://www.upek.com/support/dl_linux_bsp.asp UPEK's download page]. And how does one edit the industry watch section of the main page?

--[[User:Spiney|spiney]] 21:39, 22 Dec 2005 (CET)

Ah, great! Both the article page and the driver page it points to are out of date... For the news, just follow the "[[ThinkWiki:News|News]]" link in the main page.

--[[User:Thinker|Thinker]] 21:44, 22 Dec 2005 (CET)

As this is now very soon I've updated the article page to link to the final driver, which is better in a few ways anyway. This is unless anyone minds (are there any unresolved issues with the final that don't exist in the betas?).

--[[User:Keegan|keegan]] 05:06, 24 Dec 2005 (CET)

== Updated xscreensaver patch ==

I've tried to address some usability issues with the old patch, e.g. that it calls the PAM bioapi module twice before falling back to the normal authentication methods. It can be found on my [http://linux.spiney.org/debian_gnu_linux_on_an_ibm_thinkpad_t43p_fingerprint_reader Fingerprint Reader] page, feedback is very welcome.

--[[User:Spiney|spiney]] 20:36, 22 Dec 2005 (CET)
----

== Fingerprint or password ==

Is there any way to have PAM accept either a password or a finger swipe, right away? Sometimes one is more convenient, sometimes the other, so and it's a lot of trouble to wait for the UPEK scanner prompt and then cancel it in order to reach the password entry.

--[[User:Thinker|Thinker]] 19:27, 24 Dec 2005 (CET)

== KDE screensaver ==

If you get the following in {{path|/var/log/secure}} when you try to unlock the KDE screensaver, it means you forgot to set the USB device permissions.
localhost pam_bioapi[24981]: Unable to load BioAPI BSP with UUID of {5550454b-2054-464d-2f45-535320425350}, BioAPI error #194d.

--[[User:Thinker|Thinker]] 21:21, 24 Dec 2005 (CET)
----

== fingerprint reader in action. ==

small video with fingerprint reader in action with login: http://chao.ch/tmp/mov01302.mpg

--[[User:62.202.35.30|62.202.35.30]] 17:57, 29 Dec 2005 (CET)

==A little feedback...==
...for all the editors of this article:

"[[How to enable the fingerprint reader]] over at ThinkWiki.org is some real exhaustive documentation for getting the fingerprint scanner working on the ThinkPads. There is also a troubleshooting section towards the end that might be very useful to anyone messing around with it.

Thanks to those responsible for taking the time to write up this excellent guide."

Those thanks come from [http://linuxbiometrics.com/modules/news/ LinuxBiometrics.com]

[[User:Wyrfel|Wyrfel]] 01:24, 9 Jan 2006 (CET)
----

==pam_bioapi.so is not linked to libbioapi100.so==
I downloaded the pam_bioapi package and patched the file by following the wiki. However, I got the following result:

~/soft/thinkpad/pam_bioapi-0.2.1/libpam_bioapi/.libs$ ls -la
total 48
drwxr-xr-x 2 louis users 248 2006-01-12 01:18 ./
drwxr-xr-x 4 louis users 312 2006-01-12 01:18 ../
lrwxrwxrwx 1 louis users 16 2006-01-12 01:18 pam_bioapi.la -> ../pam_bioapi.la
-rw-r--r-- 1 louis users 824 2006-01-12 01:18 pam_bioapi.lai
-rw-r--r-- 1 louis users 19716 2006-01-12 01:18 pam_bioapi.o
lrwxrwxrwx 1 louis users 19 2006-01-12 01:18 pam_bioapi.so -> pam_bioapi.so.0.0.0*
lrwxrwxrwx 1 louis users 19 2006-01-12 01:18 pam_bioapi.so.0 -> pam_bioapi.so.0.0.0*
-rwxr-xr-x 1 louis users 21789 2006-01-12 01:18 pam_bioapi.so.0.0.0*

~/soft/thinkpad/pam_bioapi-0.2.1/libpam_bioapi/.libs$ ldd pam_bioapi.so
linux-gate.so.1 => (0xffffe000)
libc.so.6 => /lib/tls/libc.so.6 (0x40025000)
/lib/ld-linux.so.2 (0x80000000)
~/soft/thinkpad/pam_bioapi-0.2.1/libpam_bioapi/.libs$

pam_bioapi.so is NOT linked to libbioapi100.so. The latter is in the ld path:

~/soft/thinkpad/pam_bioapi-0.2.1/libpam_bioapi/.libs$ ldconfig -p |grep bioapi
libtfmessbsp.so (libc6) => /opt/bioapi/lib/libtfmessbsp.so
libpwbsp.so.0 (libc6) => /opt/bioapi/lib/libpwbsp.so.0
libpwbsp.so (libc6) => /opt/bioapi/lib/libpwbsp.so
libmds_util.so.0 (libc6) => /opt/bioapi/lib/libmds_util.so.0
libmds_util.so (libc6) => /opt/bioapi/lib/libmds_util.so
libbioapi100.so.0 (libc6) => /opt/bioapi/lib/libbioapi100.so.0
libbioapi100.so (libc6) => /opt/bioapi/lib/libbioapi100.so
libbioapi_mds300.so.0 (libc6) => /opt/bioapi/lib/libbioapi_mds300.so.0
libbioapi_mds300.so (libc6) => /opt/bioapi/lib/libbioapi_mds300.so
libbioapi_dummy100.so.0 (libc6) => /opt/bioapi/lib/libbioapi_dummy100.so.0
libbioapi_dummy100.so (libc6) => /opt/bioapi/lib/libbioapi_dummy100.so

and the Sample program also works allowing me to enroll and test a fingerprint.

My system is SuSE 10 with the kernel of 2.6.13-15. Any ideas?

Thanks.

--[[User:Tyne|Tyne]] 09:51, 12 Jan 2006 (CET)

==xscreensaver 4.23+fingerprint.patch causes xscreensaver-gl to crash kernel==

I've gotten bioapi and 'Sample' to allow me to enroll my fingerprint, and I've also experienced the 'two logon' issue.

I compiled xscreensaver 4.23 (though it seemed that apt came with 4.24) and applied the patch. My goal was to have the fingerprint prompt come up and to see the "bad image" of the fingerprint scan.

The first time I did this, xscreensaver-gl took a dump and was causing kernel crashes. So I went and got the newest xscreensaver source and patches, and applied the bioapi patch to those. It worked (meaning it didnt crash the kernel anymore ;b )

It would seem that there is a /etc/pam.d/xscreensaver, so I commented everything out of that except the bioapi line.

Locking xscreensaver, then attempting to unlock didnt show me any fingerprint requirements, and my password didnt work.

I'm wondering if theres something that was left out of the xscreensaver howto? or if theres anyone out there who's gotten the xscreensaver portion of this to work, who would be willing to help me out :)

--[[User:Viss|Viss]] 11:15am, 5 Feb 2006 (PST)

Talk:How to enable integrated fingerprint reader with BioAPI

2006-02-05T19:31:13Z

Viss:

== chmod 777 -R /usr/local/var/bioapi/ ==

Is the above necessary? I just made a debian package of xscreensaver with the patch applied, and when using the bioapi debian pacakge from [http://www.qrivy.net/~michael/temp/ Michael R. Crusoe's site] which has this directory put in /usr/var/bioapi I had not to change the permissions to world-writeable there. Write access to the logfile and usb device are necessary, but that directory works with 755 as well (even though it comes with 777 in Michael's package), and all files and subdirectories are 644/755 too.

--[[User:Spiney|spiney]] 00:08, 11 Nov 2005 (CET)
----

== Qt Compilation Success ==

Here it worked with qt ;)

--

I didn't get it to work anyway, but I'm curious about your Qt version(s) as it seemed to want Qt 3 when I was playing with it.

--[[User:Keegan|keegan]] 05:07, 24 Dec 2005 (CET)

== using absolute paths for commands ==

I don't know whether using absolute paths in the articles is a good idea, at least not for tools like {{cmd|lsusb|}} which are not established utilities (i.e. used for more than a decade or something ;)) and happen to be in different locations in different distributions. E.g. said {{cmd|lsusb|}} resides in {{path|/usr/sbin|}} on Debian systems.

--[[User:Spiney|spiney]] 16:45, 12 Nov 2005 (CET)
----

I'm using debian testing and it's in {{path|/usr/bin|}}. I agree that the confusion is bad; dropping the absolute paths and adding a general note about checking {{cmd|$PATH|}} in case of problems is probably good.

--[[User:keegan|keegan]]

== BioAPI error #3 ==

Its kind of strage it used to work with everythig (kdm,console,lock,etc)
Now it only works with kdm. It allways gives back:

pam_bioapi[8113]: Unable to initialize Bioapi framework, BioAPI error #:3.

Even when I set the right permissions on /proc/bus/usb.

I am able to run the Sample program as normal user after setting the permissions, but when I change within a user session by su I amnot able to run the Sample program a also get an error Code #3.

From an other terminal (alt+strg+Fx) I am able to run the Sample program but at the login I still get the error #3.

I cant remember to have changed anything an d bevor I was able to login in a console with my fingerprint now only kdm is working even kde lock-session
isnt working anymore.

Any suggestions ?

==Permission errors exclusive to xscreensaver==

I followed the instructions above and got everything working, including non-root programs like xscreensaver. However, the script to change usbfs permissions is finicky and fails to work with a lot of things like suspend/resume. Therefore, I switched to specifying <tt>devgid=108,devmode=0660,busgid=108,busmode=0770,listgid=108,listmode=0660</tt> as mount parameters for usbfs, where group 108 is a group I created and added my normal user to. This seems like a much better way of doing things, and it almost works. However, xscreensaver (using the newer patch) gives the familiar <tt>Unable to load BioAPI BSP with UUID of <nowiki>{</nowiki>5550454b-2054-464d-2f45-535320425350<nowiki>}</nowiki>, BioAPI error #194d.</tt> error in {{path|/var/log/auth.log|}}. I don't think this is a straightfoward permissions problem because
<ul>
<li>the permissions in {{path|/proc/bus/usb|}} are correct by inspection</li>
<li>I can write to the device file as my normal user</li>
<li>other programs like {{cmd|test_verify-pam_bioapi|}} and [http://pamtester.sourceforge.net/ {{cmd|pamtester|}}] work as my normal user</li>
<li>the weirdest one: xscreensaver works when the {{cmd|xscreensaver|}} daemon is launched from within {{cmd|strace|}}. It's still running as my normal user ({{cmd|strace|}} is not setuid root). I have absolutely no idea what would cause this. I thought it might be an environment issue, but the difference in environment between the {{cmd|strace|}} session and my normal session is trivial.</li>
</ul>

At this point I'm hoping it's something dumb, but I'm out of ideas. The {{cmd|xscreensaver|}} error is <tt>pam_authenticate (...) ==> 7 (Authentication failure)</tt>, for the record.

--[[User:keegan|keegan]]
----

Could you provide all the log lines between pam_start and pam_end when running {{cmd|xscreensaver -verbose|}}?

BTW, the idea with using the mount options for usbfs is very good, maybe you should add that info to the article page? I use the permission changing script without problems, also after resume, but the usbfs version is probably easier to set up, most people will be able to find {{path|/etc/fstab|}}.

--[[User:Spiney|spiney]] 10:12, 23 Dec 2005 (CET)
----
<pre>
xscreensaver: 20:56:01: alternative_pam: 1 -> pam service: xscreensaver-alternative
xscreensaver: 20:56:01: pam_start ("xscreensaver-alternative", "keegan", ...) ==> 0 (Success)
xscreensaver: 20:56:01: pam_set_item (p, PAM_TTY, ":0.0") ==> 0 (Success)
xscreensaver: 20:56:01: PAM ECHO_OFF("Password: ") ==> password
xscreensaver: 20:56:03: pam_authenticate (...) ==> 7 (Authentication failure)
xscreensaver: 20:56:03: pam_end (...) ==> 0 (Success)
xscreensaver: 20:56:03: prompting for password.
xscreensaver: 20:56:03: 0: creating password dialog.
xscreensaver: 20:56:03: 0: mouse is at 442,412.
xscreensaver: 20:56:03: grabbing server...
xscreensaver: 20:56:03: 0: ungrabbing mouse (was 0x48).
xscreensaver: 20:56:03: 0: grabbing mouse on 0xe0002b... GrabSuccess.
xscreensaver: 20:56:03: ungrabbing server.
xscreensaver: 20:56:05: alternative_pam: 12582928 -> pam service: xscreensaver
xscreensaver: 20:56:05: pam_start ("xscreensaver", "keegan", ...) ==> 0 (Success)
xscreensaver: 20:56:05: pam_set_item (p, PAM_TTY, ":0.0") ==> 0 (Success)
xscreensaver: 20:56:05: PAM ECHO_OFF("Password: ") ==> password
xscreensaver: 20:56:05: pam_authenticate (...) ==> 0 (Success)
xscreensaver: 20:56:05: pam_acct_mgmt (...) ==> 9 (Authentication service cannot retrieve authentication info.)
xscreensaver: 20:56:05: pam_setcred (...) ==> 0 (Success)
xscreensaver: 20:56:05: pam_end (...) ==> 0 (Success)
xscreensaver: 20:56:05: password correct.
</pre>
So we've got the first attempt with {{cmd|pam_bioapi|}}, which fails immediately (no sign of the GUI fingerprint prompt, nor a "silent" chance to swipe the finger as with xdm), then the fallback to {{cmd|pam_unix|}} which succeeds. Earlier I had xscreensaver set up to only try {{cmd|pam_bioapi|}}, with essentially the same result -- it gives up on pam entirely and does unix auth itself.

I'd really like to strace the pam module and see what it's attempting to do to {{path|/proc/bus/usb|}}, but as that actually fixes the problem I'm kinda at a loss. Maybe there's some kernel option to print debugging info for usbfs? I'd be all for changing the article to suggest using mount options in {{path|/etc/fstab|}}, if it weren't for this one weird bug. Has anyone else had the same problem?

-- [[User:keegan|keegan]]

==Driver Expiring!!!==
Don't anyone notice that both betas of the UPEK driver is expiring in
about a month in the new year, Jan 1st 2006? They really mean it!
I set my computer date to next year and get a message "the driver has expired" when using fingerprint reader! This is a grave threat to our computer lifestyle, i.e. for those of us who got it working and use it
daily:)
Is there any workaround other than setting the date back a year when
new year come and wait for new driver? Is there a way to figure out where exactly in the driver it checked the date and how? The must have set it
somewhere in file libtfmessbsp.so, but it is binary and I can't figure out how to Reverse Engineer it.

---Jiang

Yes, the beta driver will expire. The final version (which is due REALLY soon now) will not.

Sumedha

Any news? Just 9 days left to expiry. --[[User:Thinker|Thinker]] 21:36, 22 Dec 2005 (CET)

The final is out, get it at [http://www.upek.com/support/dl_linux_bsp.asp UPEK's download page]. And how does one edit the industry watch section of the main page?

--[[User:Spiney|spiney]] 21:39, 22 Dec 2005 (CET)

Ah, great! Both the article page and the driver page it points to are out of date... For the news, just follow the "[[ThinkWiki:News|News]]" link in the main page.

--[[User:Thinker|Thinker]] 21:44, 22 Dec 2005 (CET)

As this is now very soon I've updated the article page to link to the final driver, which is better in a few ways anyway. This is unless anyone minds (are there any unresolved issues with the final that don't exist in the betas?).

--[[User:Keegan|keegan]] 05:06, 24 Dec 2005 (CET)

== Updated xscreensaver patch ==

I've tried to address some usability issues with the old patch, e.g. that it calls the PAM bioapi module twice before falling back to the normal authentication methods. It can be found on my [http://linux.spiney.org/debian_gnu_linux_on_an_ibm_thinkpad_t43p_fingerprint_reader Fingerprint Reader] page, feedback is very welcome.

--[[User:Spiney|spiney]] 20:36, 22 Dec 2005 (CET)
----

== Fingerprint or password ==

Is there any way to have PAM accept either a password or a finger swipe, right away? Sometimes one is more convenient, sometimes the other, so and it's a lot of trouble to wait for the UPEK scanner prompt and then cancel it in order to reach the password entry.

--[[User:Thinker|Thinker]] 19:27, 24 Dec 2005 (CET)

== KDE screensaver ==

If you get the following in {{path|/var/log/secure}} when you try to unlock the KDE screensaver, it means you forgot to set the USB device permissions.
localhost pam_bioapi[24981]: Unable to load BioAPI BSP with UUID of {5550454b-2054-464d-2f45-535320425350}, BioAPI error #194d.

--[[User:Thinker|Thinker]] 21:21, 24 Dec 2005 (CET)
----

== fingerprint reader in action. ==

small video with fingerprint reader in action with login: http://chao.ch/tmp/mov01302.mpg

--[[User:62.202.35.30|62.202.35.30]] 17:57, 29 Dec 2005 (CET)

==A little feedback...==
...for all the editors of this article:

"[[How to enable the fingerprint reader]] over at ThinkWiki.org is some real exhaustive documentation for getting the fingerprint scanner working on the ThinkPads. There is also a troubleshooting section towards the end that might be very useful to anyone messing around with it.

Thanks to those responsible for taking the time to write up this excellent guide."

Those thanks come from [http://linuxbiometrics.com/modules/news/ LinuxBiometrics.com]

[[User:Wyrfel|Wyrfel]] 01:24, 9 Jan 2006 (CET)
----

==pam_bioapi.so is not linked to libbioapi100.so==
I downloaded the pam_bioapi package and patched the file by following the wiki. However, I got the following result:

~/soft/thinkpad/pam_bioapi-0.2.1/libpam_bioapi/.libs$ ls -la
total 48
drwxr-xr-x 2 louis users 248 2006-01-12 01:18 ./
drwxr-xr-x 4 louis users 312 2006-01-12 01:18 ../
lrwxrwxrwx 1 louis users 16 2006-01-12 01:18 pam_bioapi.la -> ../pam_bioapi.la
-rw-r--r-- 1 louis users 824 2006-01-12 01:18 pam_bioapi.lai
-rw-r--r-- 1 louis users 19716 2006-01-12 01:18 pam_bioapi.o
lrwxrwxrwx 1 louis users 19 2006-01-12 01:18 pam_bioapi.so -> pam_bioapi.so.0.0.0*
lrwxrwxrwx 1 louis users 19 2006-01-12 01:18 pam_bioapi.so.0 -> pam_bioapi.so.0.0.0*
-rwxr-xr-x 1 louis users 21789 2006-01-12 01:18 pam_bioapi.so.0.0.0*

~/soft/thinkpad/pam_bioapi-0.2.1/libpam_bioapi/.libs$ ldd pam_bioapi.so
linux-gate.so.1 => (0xffffe000)
libc.so.6 => /lib/tls/libc.so.6 (0x40025000)
/lib/ld-linux.so.2 (0x80000000)
~/soft/thinkpad/pam_bioapi-0.2.1/libpam_bioapi/.libs$

pam_bioapi.so is NOT linked to libbioapi100.so. The latter is in the ld path:

~/soft/thinkpad/pam_bioapi-0.2.1/libpam_bioapi/.libs$ ldconfig -p |grep bioapi
libtfmessbsp.so (libc6) => /opt/bioapi/lib/libtfmessbsp.so
libpwbsp.so.0 (libc6) => /opt/bioapi/lib/libpwbsp.so.0
libpwbsp.so (libc6) => /opt/bioapi/lib/libpwbsp.so
libmds_util.so.0 (libc6) => /opt/bioapi/lib/libmds_util.so.0
libmds_util.so (libc6) => /opt/bioapi/lib/libmds_util.so
libbioapi100.so.0 (libc6) => /opt/bioapi/lib/libbioapi100.so.0
libbioapi100.so (libc6) => /opt/bioapi/lib/libbioapi100.so
libbioapi_mds300.so.0 (libc6) => /opt/bioapi/lib/libbioapi_mds300.so.0
libbioapi_mds300.so (libc6) => /opt/bioapi/lib/libbioapi_mds300.so
libbioapi_dummy100.so.0 (libc6) => /opt/bioapi/lib/libbioapi_dummy100.so.0
libbioapi_dummy100.so (libc6) => /opt/bioapi/lib/libbioapi_dummy100.so

and the Sample program also works allowing me to enroll and test a fingerprint.

My system is SuSE 10 with the kernel of 2.6.13-15. Any ideas?

Thanks.

--[[User:Tyne|Tyne]] 09:51, 12 Jan 2006 (CET)

I've gotten bioapi and 'Sample' to allow me to enroll my fingerprint, and I've also experienced the 'two logon' issue.

I compiled xscreensaver 4.23 (though it seemed that apt came with 4.24) and applied the patch. My goal was to have the fingerprint prompt come up and to see the "bad image" of the fingerprint scan.

The first time I did this, xscreensaver-gl took a dump and was causing kernel crashes. So I went and got the newest xscreensaver source and patches, and applied the bioapi patch to those. It worked (meaning it didnt crash the kernel anymore ;b )

It would seem that there is a /etc/pam.d/xscreensaver, so I commented everything out of that except the bioapi line.

Locking xscreensaver, then attempting to unlock didnt show me any fingerprint requirements, and my password didnt work.

I'm wondering if theres something that was left out of the xscreensaver howto? or if theres anyone out there who's gotten the xscreensaver portion of this to work, who would be willing to help me out :)