Public bug reported:
I have no output to my external monitor via docking station and display
port.
With noveau drivers it works.
xrandr --query
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
DP-5.8 connected primary (normal left inverted right x axis y axis)
2560x1600 59.97 +
1920x1200 59.88
1920x1080 60.00 59.94 50.00 23.97 60.05 60.00 50.04
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 60.01 59.94
640x480 75.00 59.94 59.93
LVDS-0 disconnected (normal left inverted right x axis y axis)
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 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)
LVDS-1-1 connected 1920x1080+0+0 344mm x 193mm
1920x1080 60.00*+ 59.93 50.00
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1280x1024 60.02
1440x900 59.89
1280x960 60.00
1360x768 59.80 59.96
1152x864 60.00
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
960x600 60.00
960x540 59.99
800x600 60.00 60.32 56.25
840x525 60.01 59.88
800x512 60.17
700x525 59.98
640x512 60.02
720x450 59.89
640x480 60.00 59.94
680x384 59.80 59.96
576x432 60.06
512x384 60.00
400x300 60.32 56.34
320x240 60.05
VGA-1-1 disconnected
1680x1050 (0x48) 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 (0x4c) 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
1024x768 (0x53) 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 (0x5a) 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 (0x63) 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
So the monitor DP-5.8 is regognized, but for example xrandr --output
DP-5.8 --auto does not result in an output, same with disper -s, disper
-S, arandr, gnome-display settings, kde-display settings. Same with
xrandr --output DP-5.8 --mode "2560x1600" --primary
I am also wondering why there does a VGA device shows up in my xrandr
--query, but I don't have one connected.
With nvidia-340 the output works.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: nvidia-375 375.66-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-92.115-generic 4.4.76
Uname: Linux 4.4.0-92-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Tue Sep 5 23:15:04 2017
InstallationDate: Installed on 2016-05-18 (475 days ago)
InstallationMedia: Lubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420)
SourcePackage: nvidia-graphics-drivers-375
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: nvidia-graphics-drivers-375 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug third-party-packages xenial
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https://bugs.launchpad.net/bugs/1715245
Title:
No output on external monitor via docking station and display port
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