Installing Fedora 12 on a ThinkPad T41
Success Chart - Out of the box experience
This machines SMOLT profile is available here.
|Installation||Local CD/DVD install||yes|
|Display||Laptop Screen||yes||Occasional minor corruption.|
|VGA||partial||see below, fixed by installing updates|
|DVI||partial||see below, fixed by installing updates. Requires port-replicator or dock with DVI|
|Power Management||Software Suspend (hibernate)||yes|
|Suspend to Memory (ACPI sleep)||no|| Xserver hang on resume. bugzilla. boot with |
|Audio||yes||crackling on startup, afterwards seems to work fine|
|Wireless||WiFi - Atheros AR5212||yes||See below - There are some issues with range.|
|WiFi - Intel||unknown (should work)|
|TrackPoint||yes||Install gpointing-device-settings rpm for full configuration capabilities|
|TouchPad||yes||Install gpointing-device-settings rpm for full configuration capabilities|
|Extra keys||partial||see ThinkPad Extra keys section below|
|Modem||no||Requires closed-source driver. Install the slmodem rpm from the rpmfusion-nonfree repository, edit /etc/sysconfig/slmodem and set INTERFACE=alsa and ALSA_DEVICE=modem:1 and optionally the country.|
|Serial||yes||Requires port-replicator or dock|
|IrDA||no||Device is detected, but does not work|
|PS/2 Keyboard/Mouse||yes||Mouse works, but disables Trackpoint/Touchpad|
|Parallel||unknown (should work)||Device is detected|
|Harddisk Active Protection||partial||There is now a hdapsd rpm, but it is not installed by default, and neither is the hdaps kernel module getting automatically loaded. And even after install it is not started automatically. Starting it manually (modprobe hdaps; hdapsd -d sda), does seem to cause the HDD heads to get parked, but it gives lots of warnings that seem to indicate it does not yet work as intended. bugzilla|
|Ultrabay device removal||partial||Eject switch causes udev event, but no default udev script to handle the event to unmount filesystems in time. ata_piix does handle the removal and insertion of ATA devices.|
|TPM (security subsystem)||unknown||Not brave enough to mess around with it. You can try to install the tpm-tools rpm.|
Tested and Verified on Fedora 12
Information in this section has been tested and verified using Fedora 12.
Installation is straight forward, but you should do so without any external displays attached; you can follow the generic Fedora install instructions.
It is recommended to edit /boot/grub/grub.conf and add
hpet=force to the kernel line. This will activate HPET (High Precision Event Timer), which will allow the CPU to sleep for longer periods and save power.
X Server - ATI RV250
Out of the box external displays (VGA, DVI or S-Video) do not work properly. It is best to do the install without any external displays attached. After the install is finished you should install the available updates, in particular the available Xorg, libdrm, Mesa and Kernel updates.
Unfortunately the latest ATI Radeon driver and kernel are not yet available in the Updates repository, so for the time being do the following;
yum update kernel\* libdrm mesa\* plymouth\* xorg\* --enablerepo=updates-testing
After the updates are installed, external VGA and DVI displays should work and you can switch display modes with the Fn-F7 key combination to switch between different modes.
The updates will also improve S-Video support, and give you the ability to select TV output mode (PAL, NTSC, etc) with
xrandr. Unfortunately the output is still distorted. See the Bugzilla report for more information.
In addition the following issues exist
- unknown physical LVDS display size (0mm x 0mm)
- nasty LVDS 'flash' when hotplugging an external display and running xrandr
external displays do not show the physical size, until you run xrandr for the 2nd time - fixed in updates
- external ONLY does not work (both displays are black)
when an external display is attached, the shutdown/reboot plymouth screen on the LVDS will do a strange fade to white, like the screen is going- fixed in updates
Starting tuxkart, or anything that lowers the LVDS display resolution to less then native, causes the LVDS display to fade to white like it is burning out - fixed in updates
Enabling 'Desktop Effects' (compiz) works. But there is a colour palette problem when using the cube rotation.- fixed in updates
- r200_run_tcl_render error with some OpenGL apps (e.g. Extreme TuxRacer) 
Both the Intel and Atheros AR5212 wireless should work out of the box.
I did limited tested with Atheros and it seemed to worked as long as your not too far from your WiFi AP/Router. The further away you are the more problems, ranging from several tries before it connects, to never connecting even though it reports 2 out of 4 bars in signal strength. Once connected you can move further away and keep connected, at least until it needs to re-negotiate at which time you loose your connection.
Intel WiFi was not tested.
ThinkPad Extra keys
ThinkPad keys are handled by a mixture of the thinkpad_acpi, acpi button and acpi dock drivers.
|Fn-F4||suspend||acpi button||HAL||partial||button works, but suspend fails on resume with corrupted display|
|Fn-F5||wireless||thinkpad_acpi||HAL||partial||Works as a radio kill switch, kills WiFi but not Bluetooth|
|Fn-F7||videomode||thinkpad_acpi||HAL||yes||Cycles through various modes (LVDS+External Extended, LVDS+External Mirror, LVDS only, External only).|
|Fn-Home||brightness up||-||no||yes||no default OSD. Install the tpb rpm as a workaround.|
|Fn-End||brightness down||-||no||yes||no default OSD. Install the tpb rpm as a workaround.|
|Fn-PgUp||thinklight||-||no||yes||no default OSD. Install the tpb rpm as a workaround.|
|Fn-Space||zoom||thinkpad_acpi||HAL||no||Known Xorg limitation, scheduled to be fixed with the new XKB2 extension, whenever that may be.|
|VolumeUp||Volume Up||-||no||yes||no default OSD. Install the tpb rpm as a workaround.|
|VolumeDown||Volume Down||-||no||yes||no default OSD. Install the tpb rpm as a workaround.|
|Mute||Mute||-||no||yes||no default OSD. Install the tpb rpm as a workaround.|
|Access IBM||Vendor key||thinkpad_acpi||HAL||partial||No default action, but can be associated with gnome-keybinding-properties|
|NextTab||Browser Next tab||standard keyboard driver||HAL||yes|
|PreviousTab||Browser Previous tab||standard keyboard driver||HAL||yes|
|Power||Power button||acpi button||HAL||yes||Need to press button for ~1 second to trigger event. Causes a dialog asking you what to do.|
|Lid||Lid button||acpi button||HAL||yes|
|Dock||Dock eject button||acpi dock||unknown||unknown||Should cause udev event|
|Ultrabay||Ultrabay eject switch||acpi dock||udev||no||Causes udev event, but missing handler. See below.|
Ultrabay eject is not handled properly by default. Since there is no undock udev handler. This udev rule and eject script works for me: How to hotswap Ultrabay devices
IrDA is detected, but does not work. Part of the problem is that the default Fedora configuration expects to find the IrDA port at /dev/ttyS2, while it should use /dev/ircomm0 instead. This can be fixed in /etc/sysconfig/irda after which the irda service can be started (
# service irda start).
However, even after this communication with other devices fails. irdadump does not show any output when something like a mobile phone with IrDA is sending data.
Untested on Fedora 12
The following features where not tested with Fedora 12. If you have tested them, please update the table
- Intel WiFi
- Parallel port
- Dock eject