Hi Tim,
I found a workaround to use nvidia driver with lightdm + gnome-shell.
WIth nvidia-331 driver, lightdm and gnome-shell, in "System Settings"
(gnome-control-center) --> "Displays", I can still see two displays "Built-in
DIsplay" and "Unknown Display". This is the same to "Intel driver" situation.
All the layout problems I met so far can be fixed by turning off "Unknown
Display" in gnome-control-center. After turning off the "Unknown Display",
gnome-shell works perfectly. And then I tried to launch "nvidia-settings", it
shows "CRT-0 Off". I am thinking the "Unknown Display" might be refer to CRT-0
(VGA-0) ?
Note: I tried to configure "nvidia-settings" layout, it does not work.
In "nvidia-settings", It only has CRT-0. (CRT-0 is using "X Screen 0"
configuration. and in "X Screen 0" --> "X Server XVideo Settings", it
shows CRT-0 is the same as VGA-0. Hopefully, this paragraph is not
confusing you.)
PS: I am not sure how to upload multiple files at once or even if that
is possible in launchpad. I will upload three screenshots to make my
words more clear.
nvidia-builtin-display.png is a screenshot which shows built-in display setup
in gnome-control-center before turning off "Unknown Display".
nvidia-unknown-display.png is a screenshot which shows unknown display setup in
gnome-control-center before turning off "Unknown Display".
nvidia-turnoff-unknown.png is a screenshot after turning off "Unkown Display".
You can see that the layout looks perfectly by turning it off.
I have no idea why both intel driver and nvidia driver think I have an extra
"Unknown Display" VGA-0 or CRT-0.
In the end, I will show the final "xrandx -q" output after turning off "Unknown
Dispaly":
$ xrandr -q
Screen 0: minimum 8 x 8, current 1366 x 768, maximum 8192 x 8192
VGA-0 connected primary (normal left inverted right x axis y axis)
680x384 60.0 +
1366x768 60.0
1360x768 60.0
HDMI-0 disconnected (normal left inverted right x axis y axis)
LVDS-1-0 connected 1366x768+0+0 (normal left inverted right x axis y axis)
293mm x 165mm
1366x768 60.0*+
1360x768 59.8 60.0
1024x768 60.0 60.0
960x720 60.0
928x696 60.1
896x672 60.0
960x600 60.0
960x540 60.0
800x600 60.0 60.3 56.2
840x525 60.0 59.9
800x512 60.2
700x525 60.0
640x512 60.0
720x450 59.9
640x480 60.0 59.9
680x384 59.8 60.0
576x432 60.1
512x384 60.0
400x300 60.3 56.3
320x240 60.1
VGA-1-0 disconnected (normal left inverted right x axis y axis)
HDMI-1-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1-0 disconnected (normal left inverted right x axis y axis)
1366x768 (0x46) 69.3MHz
h: width 1366 start 1425 end 1464 total 1472 skew 0 clock 47.1KHz
v: height 768 start 773 end 782 total 785 clock 60.0Hz
1360x768 (0x48) 72.0MHz
h: width 1360 start 1408 end 1440 total 1520 skew 0 clock 47.4KHz
v: height 768 start 771 end 781 total 790 clock 60.0Hz
680x384 (0x5c) 36.0MHz
h: width 680 start 704 end 720 total 760 skew 0 clock 47.4KHz
v: height 384 start 385 end 390 total 395 clock 60.0Hz
The only difference I can find here is that:
VGA-0 connected primary (normal left inverted right x axis y axis)
680x384 60.0 +
Before turning off "Unknown Display", it was:
VGA-0 connected primary 680x384+0+0 (normal left inverted right x axis y axis)
0mm x 0mm panning 1366x768+0+0
680x384 60.0*+
** Attachment added: "nvidia-builtin-display.png"
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1288572/+attachment/4035824/+files/nvidia-builtin-display.png
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https://bugs.launchpad.net/bugs/1288572
Title:
Nvidia driver does not work in Ubuntu GNOME trusty "14.04" (Optimus
laptop)
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