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phillipberndt
autorandr not working on Nvidia Optimus device
Hi, I have a computer (81SX0008MX Legion Y540-15IRH) that uses the NVIDIA Optimus technology.
I have trouble making autorandr work when enabling "Switchable Graphics" in the firmware settings menu and with the early DRM kernel mode setting. It works fine when I use "Discrete Graphics" instead and the late DRM kernel mode setting (nvidia-drm.modeset=1 kernel parameter). When I have "Switchable Graphics" enabled and the early DRM kernel mode setting, then autorandr does detect when I plug in my DisplayPort cable and plug it out again (I can see this by running autorandr --detected). But the laptop monitor does not turn off and I receive no picture on the external monitor. Using xrandr manually to switch displays does work though. What might be the cause of this?
I am noticing that the monitors have different names when using "Discrete Graphics" from when using "Switchable Graphics". I have set autorandr up with the matching names used under "Switchable Graphics" though.
Output from xrandr -q ("Discrete Graphics"):
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP-0 disconnected primary (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-2 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1920x1080 144.00*+
DP-3 connected (normal left inverted right x axis y axis)
2560x1440 59.95 +
1920x1200 59.88
1920x1080 60.00 59.94 50.00 23.98
1680x1050 59.95
1600x1200 60.00
1280x1024 75.02 60.02
1280x800 59.81
1280x720 60.00 59.94 50.00
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.93 59.94
DP-4 disconnected (normal left inverted right x axis y axis)
Output from xrandr -q ("Switchable Graphics"):
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1920x1080 144.00*+ 60.01 59.97 59.96 59.93
1680x1050 59.95 59.88
1400x1050 74.76 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 85.02 75.02 60.02
1400x900 59.96 59.88
1280x960 85.00 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1280x800 59.99 59.97 59.81 59.91
1152x864 75.00
1280x720 60.00 59.99 59.86 59.74
1024x768 85.00 75.05 60.04 85.00 75.03 70.07 60.00
1024x768i 86.96
960x720 85.00 75.00 60.00
928x696 75.00 60.05
896x672 75.05 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
832x624 74.55
960x540 59.96 59.99 59.63 59.82
800x600 85.00 75.00 70.00 65.00 60.00 85.14 72.19 75.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
700x525 74.76 59.98
800x450 59.95 59.82
640x512 85.02 75.02 60.02
700x450 59.96 59.88
640x480 85.09 60.00 85.01 72.81 75.00 59.94
720x405 59.51 58.99
720x400 85.04
684x384 59.88 59.85
640x400 59.88 59.98 85.08
576x432 75.00
640x360 59.86 59.83 59.84 59.32
640x350 85.08
512x384 85.00 75.03 70.07 60.00
512x384i 87.06
512x288 60.00 59.92
416x312 74.66
480x270 59.63 59.82
400x300 85.27 72.19 75.12 60.32 56.34
432x243 59.92 59.57
320x240 85.18 72.81 75.00 60.05
360x202 59.51 59.13
360x200 85.04
320x200 85.27
320x180 59.84 59.32
320x175 85.27
DP-1-0 disconnected
DP-1-1 disconnected
HDMI-1-0 disconnected
DP-1-2 connected
2560x1440 59.95 +
1920x1200 59.88
1920x1080 60.00 59.94 50.00 23.98
1680x1050 59.95
1600x1200 60.00
1280x1024 75.02 60.02
1280x800 59.81
1280x720 60.00 59.94 50.00
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.93 59.94
DP-1-3 disconnected
1680x1050 (0x49) 146.250MHz -HSync +VSync
h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.29KHz
v: height 1050 start 1053 end 1059 total 1089 clock 59.95Hz
1280x1024 (0x52) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x53) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1280x800 (0x5e) 83.500MHz -HSync +VSync
h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 49.70KHz
v: height 800 start 803 end 809 total 831 clock 59.81Hz
1152x864 (0x60) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1024x768 (0x69) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
1024x768 (0x6b) 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 (0x86) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x87) 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 (0x9a) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x9b) 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
I have just discovered that I get the following from the command autorandr --debug --change:
docked (detected)
mobile (current)
Loading profile 'docked'
| Differences between the two profiles:
| [Output eDP-1] The output is currently enabled, but inactive in the new configuration
| [Output DP-1-2] The output is disabled currently, but active in the new configuration
\-
Going to run:
xrandr --fb 2560x1440 --output eDP-1 --off --output DP-1-2 --crtc 0 --gamma 1.0:1.0:1.0 --mode 2560x1440 --pos 0x0 --primary --rate 59.95 --reflect normal --rotate normal
xrandr: output DP-1-2 cannot use crtc 0x3f
Failed to apply profile 'docked' (line 857):
Command failed: xrandr --fb 2560x1440 --output eDP-1 --off --output DP-1-2 --crtc 0 --gamma 1.0:1.0:1.0 --mode 2560x1440 --pos 0x0 --primary --rate 59.95 --reflect normal --rotate normal (line 857)
That is I get the error xrandr: output DP-1-2 cannot use crtc 0x3f When I save the profiles using the option --skip-options crtc then I can switch profiles using the command autorandr --change and the picture switches between my monitors. However, the pictures do still not switch between my monitors when I unplug and plug in the cable.
This is the output from running autorandr --debug --change after I have saved the profiles using the the option --skip-options crtc :
mobile
docked (detected)
| Differences between the two profiles:
| [Output DP-1-2] The output is disabled currently, but active in the new configuration
| [Output eDP-1] The output is currently enabled, but inactive in the new configuration
\-
Loading profile 'docked'
| Differences between the two profiles:
| [Output DP-1-2] The output is disabled currently, but active in the new configuration
| [Output eDP-1] The output is currently enabled, but inactive in the new configuration
\-
Going to run:
xrandr --fb 2560x1440 --output eDP-1 --off --output DP-1-2 --gamma 1.0:1.0:1.0 --mode 2560x1440 --pos 0x0 --primary --rate 59.95 --reflect normal --rotate normal
The configuration change did not go as expected:
| Differences between the two profiles:
| [Output DP-1-2] Option --crtc (= `0') is not present in the new configuration
\-
@phillipberndt Do you have an idea of why I can switch between my monitors using the autorandr --change command after plugging/unplugging the cable to my external monitor but that the switch does not happen automatically (I have to use the command to make the switch happen).
What means of running it automatically do you use? Have you tried the others? (E.g. launcher instead of udev)
You might also have to patch them to include the option to skip the crtc config - if doing that works, that'd mean we have to include a patch in autorandr to persist this option somewhere else, presumably in the configuration itself.
