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Hi I've been trying to setup some of my "action keys" using acpid (e.g. touchpad enable toggle, volume control) on my netbook and I've managed to setup up all the keys I want except for one.
I want one of my keys to run a script that toggles the external display on or off (VGA1).
the switch on action is done using the following command
xrandr --output VGA1 --mode 1280x768the switch off action is done using the following command
xrandr --output VGA1 --offIf I run these commands myself everything works fine.
The external toggle screen code is as follows.
#!/bin/bash
#Script to switch external display on/off
export DISPLAY=':0'
#Get line number of where LVDS1 description starts
LINE_NO=$(xrandr --query | grep -En LVDS1 | grep -Eo '^[0-9]+')
echo '####' >> /home/dan/errorlog
xrandr --query 1>> /home/dan/errorlog
echo '###' >> /home/dan/errorlog
ACTIVE=$(xrandr --query | head --lines=${LINE_NO} | grep -Ec '[0-9]+\.[0-9]+\*')
echo "is active?$ACTIVE" >> /home/dan/errorlog
if [ "$ACTIVE" -eq 0 ]; then
#activate external display
echo "Activating external display..." 1>> /home/dan/errorlog
xrandr --verbose --output VGA1 --mode 1280x768 1>> /home/dan/errorlog 2>> /home/dan/errorlog
elif [ "$ACTIVE" -eq 1 ]; then
#disable external display
echo "Disabling external display..." 1>> /home/dan/errorlog
xrandr --verbose --output VGA1 --off 1>> /home/dan/errorlog 2>> /home/dan/errorlog
else
echo "Cannot determine if the external display is active. Doing nothing!" 1>> /home/dan/errorlog
fiThe script uses
xrandr --queryto determine if VGA1 is active. A * symbol is placed next to a mode if it is active. However it seems that when I press my key and acpid runs the above script the active mode is not always correctly reported (note that if I run the script manually myself it always seems to work).
Here is the output of errorlog (with # annotations by me)
#FIRST KEYPRESS, SWITCHES ON EXTERNAL DISPLAY AS EXPECTED AS NO ACTIVE MODE ON VGA1
####
Screen 0: minimum 320 x 200, current 1024 x 600, maximum 4096 x 4096
VGA1 connected (normal left inverted right x axis y axis)
1024x768 60.0 + 75.1 70.1
1280x768 59.9
832x624 74.6
800x600 85.1 72.2 75.0 60.3 56.2
640x480 85.0 72.8 75.0 66.7 60.0
720x400 70.1
LVDS1 connected 1024x600+0+0 (normal left inverted right x axis y axis) 220mm x 129mm
1024x600 60.0*+ 65.0
800x600 60.3 56.2
640x480 59.9
###
is active?0
Activating external display...
screen 0: 1280x768 320x192 mm 101.60dpi
crtc 0: 1280x768 59.9 +0+0 "VGA1"
#SECOND KEYPRESS, SWITCHES OFF EXTERNAL DISPLAY AS MODE 1280X768 IS ACTIVE
####
Screen 0: minimum 320 x 200, current 1280 x 768, maximum 4096 x 4096
VGA1 connected 1280x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.0 + 75.1 70.1
1280x768 59.9*
832x624 74.6
800x600 85.1 72.2 75.0 60.3 56.2
640x480 85.0 72.8 75.0 66.7 60.0
720x400 70.1
LVDS1 connected 1024x600+0+0 (normal left inverted right x axis y axis) 220mm x 129mm
1024x600 60.0*+ 65.0
800x600 60.3 56.2
640x480 59.9
###
is active?1
Disabling external display...
crtc 0: disable
screen 0: 1024x600 256x150 mm 101.60dpi
#THIRD KEYPRESS, SHOULD SWITCH EXTERNAL DISPLAY ON BUT IT DOESN'T BECAUSE MODE 1024X768 IS REPORTED AS BEING ACTIVE EVEN THOUGH IT ISN'T
####
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.0*+ 75.1 70.1
1280x768 59.9
832x624 74.6
800x600 85.1 72.2 75.0 60.3 56.2
640x480 85.0 72.8 75.0 66.7 60.0
720x400 70.1
LVDS1 connected 1024x600+0+0 (normal left inverted right x axis y axis) 220mm x 129mm
1024x600 60.0*+ 65.0
800x600 60.3 56.2
640x480 59.9
###
is active?1
Disabling external display...
crtc 0: disable
screen 0: 1024x600 256x150 mm 101.60dpi
#FOURTH KEYPRESS, 1024X768 REPORTED AS ACTIVE MODE AGAIN EVEN THOUGH THE DISPLAY IS INACTIVE
####
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.0*+ 75.1 70.1
1280x768 59.9
832x624 74.6
800x600 85.1 72.2 75.0 60.3 56.2
640x480 85.0 72.8 75.0 66.7 60.0
720x400 70.1
LVDS1 connected 1024x600+0+0 (normal left inverted right x axis y axis) 220mm x 129mm
1024x600 60.0*+ 65.0
800x600 60.3 56.2
640x480 59.9
###
is active?1
Disabling external display...
crtc 0: disable
screen 0: 1024x600 256x150 mm 101.60dpi
#FIFTH KEYPRESS, 1024X768 INCORRECTLY REPORTED AGAIN!
####
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.0*+ 75.1 70.1
1280x768 59.9
832x624 74.6
800x600 85.1 72.2 75.0 60.3 56.2
640x480 85.0 72.8 75.0 66.7 60.0
720x400 70.1
LVDS1 connected 1024x600+0+0 (normal left inverted right x axis y axis) 220mm x 129mm
1024x600 60.0*+ 65.0
800x600 60.3 56.2
640x480 59.9
###
is active?1
Disabling external display...
crtc 0: disable
screen 0: 1024x600 256x150 mm 101.60dpi
#xrandr --query, is manually ran first, then key is pressed! NOW SWITCHES DISPLAY ON BECAUSE NO ACTIVE MODES ARE SHOWN
####
Screen 0: minimum 320 x 200, current 1024 x 600, maximum 4096 x 4096
VGA1 connected (normal left inverted right x axis y axis)
1024x768 60.0 + 75.1 70.1
1280x768 59.9
832x624 74.6
800x600 85.1 72.2 75.0 60.3 56.2
640x480 85.0 72.8 75.0 66.7 60.0
720x400 70.1
LVDS1 connected 1024x600+0+0 (normal left inverted right x axis y axis) 220mm x 129mm
1024x600 60.0*+ 65.0
800x600 60.3 56.2
640x480 59.9
###
is active?0
Activating external display...
screen 0: 1280x768 320x192 mm 101.60dpi
crtc 0: 1280x768 59.9 +0+0 "VGA1"
####As noted above I can enable the display but when I try to disable it the next time the script is executed by acpid VGA1 is misreported as having an active mode repeatedly (If I wait long enough after pressing a key the script sometimes works) so the script doesn't reactivate the display. If I manually run
xrandr --querymanually myself the script suddenly works if I try and run it again.
Does anyone have any idea what's going on!?
Thanks.
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