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Hi,
I have two screens attached to my laptop, one on the HDMI port,
the other one on the VGA port.
The Card is an nvidia GT 550M
After logging in, xmonad starts spread across my two monitors
xrandr gives me this:
Screen 0: minimum 8 x 8, current 3600 x 1080, maximum 16384 x 16384
VGA-0 connected (normal left inverted right x axis y axis)
1024x768 60.00 +
800x600 72.19 60.32 56.25
640x480 59.94
512x384 60.00
400x300 72.19
320x240 60.05
HDMI-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 298mm
1920x1080 60.00*+
1680x1050 59.88
1600x900 60.00
1280x1024 75.02 60.02
1280x800 59.91
1152x864 75.00
1280x720 60.00
1024x768 75.03 60.00
832x624 74.55
800x600 75.00 60.32
640x480 75.00 59.94
720x400 70.08
LVDS-1-1 connected (normal left inverted right x axis y axis)
1920x1080 60.00 +
1400x1050 59.98
1280x1024 60.02
1280x960 60.00
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
800x600 60.00 60.32 56.25
700x525 59.98
640x512 60.02
640x480 60.00 59.94
512x384 60.00
400x300 60.32 56.34
320x240 60.05
VGA-1-1 connected 1680x1050+1920+30 (normal left inverted right x axis y axis) 473mm x 296mm
1680x1050 59.95*+
1600x1000 60.01
1280x1024 75.02 60.02
1440x900 59.89
1280x960 60.00
1152x864 75.00
1152x720 59.97
1024x768 75.03 60.00
832x624 74.55
800x600 75.00 60.32
640x480 75.00 59.94
720x400 70.08
DP-1-1 disconnected (normal left inverted right x axis y axis)
1024x768 (0x4f) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x52) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
640x480 (0x54) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
800x600 (0x5e) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
512x384 (0x62) 32.500MHz -HSync -VSync DoubleScan
h: width 512 start 524 end 592 total 672 skew 0 clock 48.36KHz
v: height 384 start 385 end 388 total 403 clock 60.00Hz
320x240 (0x65) 12.587MHz -HSync -VSync DoubleScan
h: width 320 start 328 end 376 total 400 skew 0 clock 31.47KHz
v: height 240 start 245 end 246 total 262 clock 60.05Hz
I currently have this in /etc/X11/xorg.conf.d/20_monitors.conf
Section "Monitor"
Identifier "VGA-1-1"
Option "PreferredMode" "1680x1050"
Option "RightOf" "HDMI-1-1"
EndSection
Section "Monitor"
Identifier "HDMI-1-1"
Option "PreferredMode" "1920x1080"
Option "Primary" "true"
EndSection
Section "Screen"
Identifier "Screen0"
Monitor "HDMI-1-1"
DefaultDepth 24
EndSection
Section "Screen"
Identifier "Screen1"
Monitor "VGA-1-1"
DefaultDepth 24
EndSection
None of these seems to have any effect, because only this nonexisting VGA-0 monitor is turned on
I was able to vnc into my pc and using xrandr correct the monitors
So I put this line in
/etc/lightdm/lightdm.conf
display-setup-script=xrandr --output HDMI-1-1 --auto --left-of VGA-1-1 --output VGA-1-1 --auto --output VGA-0 --off
I used a configfile for xmonad that worked on a previous install of ubuntu
So I suspect the problem is not with xmonad
I tried removing the nvidia driver
and then xmonad is working on two screens
It is however redrawing the screen rather slowly,
like Windows does when there is no driver installed and it's using the default VGA drivers
although
In [10]: !lsmod | grep i915
i915 1396736 6
drm_kms_helper 126976 1 i915
drm 303104 5 i915,drm_kms_helper
intel_gtt 20480 1 i915
i2c_algo_bit 16384 1 i915
video 36864 2 asus_wmi,i915
button 16384 1 i915
I have been struggling with these problems for a long time,
I've tried many things but now I'm lost as where to look.
By uninstalling the nvidia driver I now lost the ability in blender to use the GPU for rendering,
so what I would like to achieve is to have nvidia installed, but lightdm using the intel drivers
Please tell me what info I should provide to let you help me
Thanks in advance
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