External HDMI screen get internal screen color profile

[Aurélien PIERRE]

System : Intel Skylake Xeon + Nvidia Quadro M2200M with Nvidia Optimus laptop
Kernel : 4.15.16
Driver : Nvidia 390.48
Optimus sync enabled.

Configuration :

The internal screen is wired to the Intel GPU, the HDMI port is wired to the Nvidia GPU. The HDMi port has an external monitor plugged.

Reproduce the bug :

Both screens have a different color profile (.icm and .icc) loaded in gnome-color-manager. However, after booting or when the internal display profile is edited, the external monitor gets the same color profile as the internal one.

Workaround :

Disable then re-enable the color profile on the external monitor. This applies back the correct profile.

xrandr output:

Screen 0: minimum 8 x 8, current 3840 x 1200, maximum 16384 x 16384
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 connected primary 1920x1200+1920+0 (normal left inverted right x axis y axis) 518mm x 324mm
   1920x1200 59.95*+
   1920x1080 60.00 59.94 50.00 23.98 60.05 60.00 50.04
   1680x1050 59.95
   1600x900 60.00
   1280x1024 75.02 60.02
   1280x800 59.81
   1280x720 60.00 59.94 50.00
   1024x768 75.03 60.00
   800x600 75.00 60.32
   720x576 50.00
   720x480 59.94
   640x480 75.00 59.94 59.93
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)
eDP-1-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 345mm x 194mm
   3840x2160 60.02 + 60.00 60.01 59.98 59.97
   3200x1800 59.96 59.94
   2880x1620 59.96 59.97
   2560x1600 59.99 59.97
   2560x1440 59.99 59.99 59.96 59.95
   2048x1536 60.00
   1920x1440 60.00
   1856x1392 60.01
   1792x1344 60.01
   2048x1152 59.99 59.98 59.90 59.91
   1920x1200 59.88 59.95
   1920x1080 60.01* 59.97 59.96 59.93
   1600x1200 60.00
   1680x1050 59.95 59.88
   1600x1024 60.17
   1400x1050 59.98
   1600x900 59.99 59.94 59.95 59.82
   1280x1024 60.02
   1440x900 59.89
   1400x900 59.96 59.88
   1280x960 60.00
   1440x810 60.00 59.97
   1368x768 59.88 59.85
   1360x768 59.80 59.96
   1280x800 59.99 59.97 59.81 59.91
   1152x864 60.00
   1280x720 60.00 59.99 59.86 59.74
   1024x768 60.04 60.00
   960x720 60.00
   928x696 60.05
   896x672 60.01
   1024x576 59.95 59.96 59.90 59.82
   960x600 59.93 60.00
   960x540 59.96 59.99 59.63 59.82
   800x600 60.00 60.32 56.25
   840x525 60.01 59.88
   864x486 59.92 59.57
   800x512 60.17
   700x525 59.98
   800x450 59.95 59.82
   640x512 60.02
   720x450 59.89
   700x450 59.96 59.88
   640x480 60.00 59.94
   720x405 59.51 58.99
   684x384 59.88 59.85
   680x384 59.80 59.96
   640x400 59.88 59.98
   576x432 60.06
   640x360 59.86 59.83 59.84 59.32
   512x384 60.00
   512x288 60.00 59.92
   480x270 59.63 59.82
   400x300 60.32 56.34
   432x243 59.92 59.57
   320x240 60.05
   360x202 59.51 59.13
   320x180 59.84 59.32
  1920x1200 (0x5c) 154.000MHz +HSync -VSync
        h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 74.04KHz
        v: height 1200 start 1203 end 1209 total 1235 clock 59.95Hz
  1680x1050 (0x62) 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 (0x6a) 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 (0x77) 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
  1024x768 (0x7f) 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 (0x8e) 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 (0x9d) 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

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-color-manager 3.28.0-1
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu4
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 9 22:19:31 2018
InstallationDate: Installed on 2018-04-08 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180408)
SourcePackage: gnome-color-manager
UpgradeStatus: No upgrade log present (probably fresh install)