ThinkWiki - User contributions [en]

Talk:Sample Fn-F7 script

2008-05-31T14:50:38Z

Mflechl:

----

Using Fedora 9 on a Thinkpad R50e, and works like a charm for me - only had to do one modification:
If the environment is such that X_USER equals USER, then the version with citation marks - like in

$SU "xrandr --output $INTERNAL_OUTPUT --off"

does not work, bash would complain that the command was not found.
It would then have to be

$SU xrandr --output $INTERNAL_OUTPUT --off

However, this does not work anymore then as soon as $SU is not empty.

The simplest solution - can surely be done in a more elegant way - is thus to replace e.g. the first two lines of this kind with

if [ -z "$SU" ]; then
xrandr --output $INTERNAL_OUTPUT --off
xrandr --output $EXTERNAL_OUTPUT --auto
else
$SU "xrandr --output $INTERNAL_OUTPUT --off"
$SU "xrandr --output $EXTERNAL_OUTPUT --auto"
fi

Thanks a lot! --mflechl

----

Note: you will need to change the internal and external resolution until someone fixes this script to figure it out from xrandr, you may also need to change output names from "VGA" and "LVDS" to what your xrandr tells you.

why not just use --auto ?

xrandr --output LVDS --auto --output VGA --off
xrandr --output LVDS --off --output VGA --auto

----

Good point, made the changes --seva

----

# This is to figure out which user and X11 display to work on
# TODO there has to be a better way to do this?
SU="su $(w -h -s | grep ":[0-9]" | head -1 | awk '{print $1}') -c"
export DISPLAY=$(w -h -s | grep ":[0-9]" | head -1 | awk '{print $3}'

concerning detecting what is currently active from xrandr. with VGA off xrandrq shows

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 2048
VGA connected (normal left inverted right)
1600x1200 60.0 + 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm
1024x768 60.0*+ 50.0
800x600 60.3
640x480 60.0 59.9

with VGA on
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
1600x1200 60.0*+ 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm
1024x768 60.0*+ 50.0
800x600 60.3
640x480 60.0 59.9

with LVDS off:

djc@Twingo:~$ xrandr --output LVDS --off --output VGA --auto
djc@Twingo:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 2048 x 2048
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
1600x1200 60.0*+ 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected (normal left inverted right)
1024x768 60.0 + 50.0
800x600 60.3
640x480 60.0 59.9

so detection should be possible on the differences between
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
VGA connected (normal left inverted right)
LVDS connected (normal left inverted right)
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

eg between '''xxxx connected nnnnxnn+0+0 (''' and '''xxxx connected ('''

----
Regarding 1. acpid runs as root, so I switch to a user account before runinng xrandr, however I need to figure out which user to switch to -- hence the hack.

Regarding 2. that doesn't tell us if screens are being mirrored or exended, just active, i think that in combination with some other tools (xwininfo -root perhaps?) could work.

--seva

----

djc@Twingo:~$ xrandr --output LVDS --auto --output VGA --auto --below LVDS
djc@Twingo:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1968, maximum 2048 x 2048
VGA connected 1600x1200+0+768 (normal left inverted right) 367mm x 275mm
...
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

so the position is in the +0+768

----

Akw, I don't think the script needs to be colorized, it better to leave things the user needs to change in bold instead.

Ordonnateur, I've made the changes so the script now figures out the state from xrandr and doesn't need to store it to a file.

--seva

----

This is great work, better than I could do. But here is another bug for you: grep connected is also picking up disconnected.

status)
echo "Current Fn-F7 state is: $STATE"
echo
echo "Attached monitors:"
xrandr | grep connected | sed "s/^/ /"

gives

djc@Twingo:~$ Desktop/thinkpad-fn-f7.sh status
Current Fn-F7 state is: internal

Attached monitors:
VGA disconnected (normal left inverted right)
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

----

fixed --seva

Re detecting the X user, it may be just as ugly but have you looked at
/usr/share/acpi-support/power-funcs

for example this is the /etc/acpi/screenblank.sh in Ubuntu 7.10

#!/bin/bash
. /etc/default/acpi-support
. /usr/share/acpi-support/power-funcs
for x in /tmp/.X11-unix/*; do
displaynum=`echo $x | sed s#/tmp/.X11-unix/X##`
getXuser;
if [ x"$XAUTHORITY" != x"" ]; then
export DISPLAY=":$displaynum"
. /usr/share/acpi-support/screenblank
fi
done

----
Husky69, `w` output looks like this for me:

[seva@brain ~]$ w -h -s
seva tty7 :0 0.00s /usr/bin/gnome-session

So `awk '{print $3}'` is correct, does w output look different for you?

Talk:Sample Fn-F7 script

2008-05-31T14:50:05Z

Mflechl:

Talk:Sample Fn-F7 script

2008-05-31T14:33:09Z

Mflechl:

----

Using Fedora 9 on a Thinkpad R50e, and works like a charm for me - only had to do one modification:
If the environment is such that X_USER equals USER, then the version with citation marks - like in

$SU "xrandr --output $INTERNAL_OUTPUT --off"

does not work, bash would complain that the command was not found.
It would then have to be

$SU xrandr --output $INTERNAL_OUTPUT --off

However, this does not work anymore then as soon as $SU is not empty.

Thanks a lot! --mflechl

----

Note: you will need to change the internal and external resolution until someone fixes this script to figure it out from xrandr, you may also need to change output names from "VGA" and "LVDS" to what your xrandr tells you.

why not just use --auto ?

xrandr --output LVDS --auto --output VGA --off
xrandr --output LVDS --off --output VGA --auto

----

Good point, made the changes --seva

----

# This is to figure out which user and X11 display to work on
# TODO there has to be a better way to do this?
SU="su $(w -h -s | grep ":[0-9]" | head -1 | awk '{print $1}') -c"
export DISPLAY=$(w -h -s | grep ":[0-9]" | head -1 | awk '{print $3}'

concerning detecting what is currently active from xrandr. with VGA off xrandrq shows

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 2048
VGA connected (normal left inverted right)
1600x1200 60.0 + 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm
1024x768 60.0*+ 50.0
800x600 60.3
640x480 60.0 59.9

with VGA on
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
1600x1200 60.0*+ 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm
1024x768 60.0*+ 50.0
800x600 60.3
640x480 60.0 59.9

with LVDS off:

djc@Twingo:~$ xrandr --output LVDS --off --output VGA --auto
djc@Twingo:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 2048 x 2048
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
1600x1200 60.0*+ 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected (normal left inverted right)
1024x768 60.0 + 50.0
800x600 60.3
640x480 60.0 59.9

so detection should be possible on the differences between
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
VGA connected (normal left inverted right)
LVDS connected (normal left inverted right)
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

eg between '''xxxx connected nnnnxnn+0+0 (''' and '''xxxx connected ('''

----
Regarding 1. acpid runs as root, so I switch to a user account before runinng xrandr, however I need to figure out which user to switch to -- hence the hack.

Regarding 2. that doesn't tell us if screens are being mirrored or exended, just active, i think that in combination with some other tools (xwininfo -root perhaps?) could work.

--seva

----

djc@Twingo:~$ xrandr --output LVDS --auto --output VGA --auto --below LVDS
djc@Twingo:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1968, maximum 2048 x 2048
VGA connected 1600x1200+0+768 (normal left inverted right) 367mm x 275mm
...
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

so the position is in the +0+768

----

Akw, I don't think the script needs to be colorized, it better to leave things the user needs to change in bold instead.

Ordonnateur, I've made the changes so the script now figures out the state from xrandr and doesn't need to store it to a file.

--seva

----

This is great work, better than I could do. But here is another bug for you: grep connected is also picking up disconnected.

status)
echo "Current Fn-F7 state is: $STATE"
echo
echo "Attached monitors:"
xrandr | grep connected | sed "s/^/ /"

gives

djc@Twingo:~$ Desktop/thinkpad-fn-f7.sh status
Current Fn-F7 state is: internal

Attached monitors:
VGA disconnected (normal left inverted right)
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

----

fixed --seva

Re detecting the X user, it may be just as ugly but have you looked at
/usr/share/acpi-support/power-funcs

for example this is the /etc/acpi/screenblank.sh in Ubuntu 7.10

#!/bin/bash
. /etc/default/acpi-support
. /usr/share/acpi-support/power-funcs
for x in /tmp/.X11-unix/*; do
displaynum=`echo $x | sed s#/tmp/.X11-unix/X##`
getXuser;
if [ x"$XAUTHORITY" != x"" ]; then
export DISPLAY=":$displaynum"
. /usr/share/acpi-support/screenblank
fi
done

----
Husky69, `w` output looks like this for me:

[seva@brain ~]$ w -h -s
seva tty7 :0 0.00s /usr/bin/gnome-session

So `awk '{print $3}'` is correct, does w output look different for you?

Talk:Sample Fn-F7 script

2008-05-31T14:29:49Z

Mflechl:

----

Using Fedora 9 on a Thinkpad R50e, and works like a charm for me - only had to do one modification:
Had to remove all citation marks like in

$SU "xrandr --output $INTERNAL_OUTPUT --off"

thus, having now

$SU xrandr --output $INTERNAL_OUTPUT --off

otherwise bash would complain that the command was not found.

Thanks a lot! --mflechl

----

Note: you will need to change the internal and external resolution until someone fixes this script to figure it out from xrandr, you may also need to change output names from "VGA" and "LVDS" to what your xrandr tells you.

why not just use --auto ?

xrandr --output LVDS --auto --output VGA --off
xrandr --output LVDS --off --output VGA --auto

----

Good point, made the changes --seva

----

# This is to figure out which user and X11 display to work on
# TODO there has to be a better way to do this?
SU="su $(w -h -s | grep ":[0-9]" | head -1 | awk '{print $1}') -c"
export DISPLAY=$(w -h -s | grep ":[0-9]" | head -1 | awk '{print $3}'

concerning detecting what is currently active from xrandr. with VGA off xrandrq shows

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 2048
VGA connected (normal left inverted right)
1600x1200 60.0 + 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm
1024x768 60.0*+ 50.0
800x600 60.3
640x480 60.0 59.9

with VGA on
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
1600x1200 60.0*+ 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm
1024x768 60.0*+ 50.0
800x600 60.3
640x480 60.0 59.9

with LVDS off:

djc@Twingo:~$ xrandr --output LVDS --off --output VGA --auto
djc@Twingo:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 2048 x 2048
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
1600x1200 60.0*+ 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected (normal left inverted right)
1024x768 60.0 + 50.0
800x600 60.3
640x480 60.0 59.9

so detection should be possible on the differences between
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
VGA connected (normal left inverted right)
LVDS connected (normal left inverted right)
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

eg between '''xxxx connected nnnnxnn+0+0 (''' and '''xxxx connected ('''

----
Regarding 1. acpid runs as root, so I switch to a user account before runinng xrandr, however I need to figure out which user to switch to -- hence the hack.

Regarding 2. that doesn't tell us if screens are being mirrored or exended, just active, i think that in combination with some other tools (xwininfo -root perhaps?) could work.

--seva

----

djc@Twingo:~$ xrandr --output LVDS --auto --output VGA --auto --below LVDS
djc@Twingo:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1968, maximum 2048 x 2048
VGA connected 1600x1200+0+768 (normal left inverted right) 367mm x 275mm
...
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

so the position is in the +0+768

----

Akw, I don't think the script needs to be colorized, it better to leave things the user needs to change in bold instead.

Ordonnateur, I've made the changes so the script now figures out the state from xrandr and doesn't need to store it to a file.

--seva

----

This is great work, better than I could do. But here is another bug for you: grep connected is also picking up disconnected.

status)
echo "Current Fn-F7 state is: $STATE"
echo
echo "Attached monitors:"
xrandr | grep connected | sed "s/^/ /"

gives

djc@Twingo:~$ Desktop/thinkpad-fn-f7.sh status
Current Fn-F7 state is: internal

Attached monitors:
VGA disconnected (normal left inverted right)
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

----

fixed --seva

Re detecting the X user, it may be just as ugly but have you looked at
/usr/share/acpi-support/power-funcs

for example this is the /etc/acpi/screenblank.sh in Ubuntu 7.10

#!/bin/bash
. /etc/default/acpi-support
. /usr/share/acpi-support/power-funcs
for x in /tmp/.X11-unix/*; do
displaynum=`echo $x | sed s#/tmp/.X11-unix/X##`
getXuser;
if [ x"$XAUTHORITY" != x"" ]; then
export DISPLAY=":$displaynum"
. /usr/share/acpi-support/screenblank
fi
done

----
Husky69, `w` output looks like this for me:

[seva@brain ~]$ w -h -s
seva tty7 :0 0.00s /usr/bin/gnome-session

So `awk '{print $3}'` is correct, does w output look different for you?

Talk:Sample Fn-F7 script

2008-05-31T12:50:52Z

Mflechl:

----

Using Fedora 9 on a Thinkpad R50e, and works like a charm for me - only had to do one modification:
Had to remove all citation marks like in
$SU "xrandr --output $INTERNAL_OUTPUT --off"
thus, having now
$SU xrandr --output $INTERNAL_OUTPUT --off
otherwise bash would complain that the command was not found.

Thanks a lot! --mflechl

----

Note: you will need to change the internal and external resolution until someone fixes this script to figure it out from xrandr, you may also need to change output names from "VGA" and "LVDS" to what your xrandr tells you.

why not just use --auto ?

xrandr --output LVDS --auto --output VGA --off
xrandr --output LVDS --off --output VGA --auto

----

Good point, made the changes --seva

----

# This is to figure out which user and X11 display to work on
# TODO there has to be a better way to do this?
SU="su $(w -h -s | grep ":[0-9]" | head -1 | awk '{print $1}') -c"
export DISPLAY=$(w -h -s | grep ":[0-9]" | head -1 | awk '{print $3}'

concerning detecting what is currently active from xrandr. with VGA off xrandrq shows

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 2048
VGA connected (normal left inverted right)
1600x1200 60.0 + 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm
1024x768 60.0*+ 50.0
800x600 60.3
640x480 60.0 59.9

with VGA on
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
1600x1200 60.0*+ 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm
1024x768 60.0*+ 50.0
800x600 60.3
640x480 60.0 59.9

with LVDS off:

djc@Twingo:~$ xrandr --output LVDS --off --output VGA --auto
djc@Twingo:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 2048 x 2048
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
1600x1200 60.0*+ 59.9
1280x1024 75.0 59.9
1152x864 74.8
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
LVDS connected (normal left inverted right)
1024x768 60.0 + 50.0
800x600 60.3
640x480 60.0 59.9

so detection should be possible on the differences between
VGA connected 1600x1200+0+0 (normal left inverted right) 367mm x 275mm
VGA connected (normal left inverted right)
LVDS connected (normal left inverted right)
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

eg between '''xxxx connected nnnnxnn+0+0 (''' and '''xxxx connected ('''

----
Regarding 1. acpid runs as root, so I switch to a user account before runinng xrandr, however I need to figure out which user to switch to -- hence the hack.

Regarding 2. that doesn't tell us if screens are being mirrored or exended, just active, i think that in combination with some other tools (xwininfo -root perhaps?) could work.

--seva

----

djc@Twingo:~$ xrandr --output LVDS --auto --output VGA --auto --below LVDS
djc@Twingo:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1968, maximum 2048 x 2048
VGA connected 1600x1200+0+768 (normal left inverted right) 367mm x 275mm
...
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

so the position is in the +0+768

----

Akw, I don't think the script needs to be colorized, it better to leave things the user needs to change in bold instead.

Ordonnateur, I've made the changes so the script now figures out the state from xrandr and doesn't need to store it to a file.

--seva

----

This is great work, better than I could do. But here is another bug for you: grep connected is also picking up disconnected.

status)
echo "Current Fn-F7 state is: $STATE"
echo
echo "Attached monitors:"
xrandr | grep connected | sed "s/^/ /"

gives

djc@Twingo:~$ Desktop/thinkpad-fn-f7.sh status
Current Fn-F7 state is: internal

Attached monitors:
VGA disconnected (normal left inverted right)
LVDS connected 1024x768+0+0 (normal left inverted right) 304mm x 228mm

----

fixed --seva

Re detecting the X user, it may be just as ugly but have you looked at
/usr/share/acpi-support/power-funcs

for example this is the /etc/acpi/screenblank.sh in Ubuntu 7.10

#!/bin/bash
. /etc/default/acpi-support
. /usr/share/acpi-support/power-funcs
for x in /tmp/.X11-unix/*; do
displaynum=`echo $x | sed s#/tmp/.X11-unix/X##`
getXuser;
if [ x"$XAUTHORITY" != x"" ]; then
export DISPLAY=":$displaynum"
. /usr/share/acpi-support/screenblank
fi
done

----
Husky69, `w` output looks like this for me:

[seva@brain ~]$ w -h -s
seva tty7 :0 0.00s /usr/bin/gnome-session

So `awk '{print $3}'` is correct, does w output look different for you?