This bug affects me too. The external monitor connected via HDMI to a Lenovo Thinkpad X1 yoga reports: "Please change your input timing to 1920x1200@60Hz", and xrandr shows that the monitor is being served at 1920x1200 59.95*+, which is a bizarre number that is almost 60Hz. Using linux kernel "4.4.0-28-generic #47-Ubuntu SMP".
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1578196 Title: External Display Port monitor not working Status in X.Org X server: Confirmed Status in xorg package in Ubuntu: Confirmed Bug description: I have three monitors on my Lenovo X250, one built-in and two connected via a Lenovo docking station : built-in: 1920x1080 HP 2335: 1920x1200 BenQ GW2765: 2560x1440 The HP is connected via DVI and the BenQ via Display Port. In this configuration, I get my HP and built-in ok, but the BenQ doesn't show up at all (using xrandr --query). If I connect the BenQ via HDMI, then it shows up in xrandr --query, but the display is still blank (bandwidth issue?). Here's the output with the DVI + DP config : $ xrandr --query Screen 0: minimum 8 x 8, current 3840 x 1200, maximum 32767 x 32767 eDP1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 276mm x 156mm 1920x1080 60.04*+ 59.93 1680x1050 59.95 59.88 1600x1024 60.17 1400x1050 59.98 1600x900 60.00 1280x1024 60.02 1440x900 59.89 1280x960 60.00 1368x768 60.00 1360x768 59.80 59.96 1152x864 60.00 1280x720 60.00 1024x768 60.00 1024x576 60.00 960x540 60.00 800x600 60.32 56.25 864x486 60.00 640x480 59.94 720x405 60.00 640x360 60.00 DP1 disconnected (normal left inverted right x axis y axis) DP2 disconnected (normal left inverted right x axis y axis) DP2-1 disconnected (normal left inverted right x axis y axis) DP2-2 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 495mm x 310mm 1920x1200 59.95*+ 1600x1200 60.00 1280x1024 85.02 75.02 60.02 1280x960 60.00 1152x864 75.00 1024x768 85.00 75.03 70.07 60.00 832x624 74.55 800x600 75.00 60.32 640x480 75.00 59.94 720x400 70.08 DP2-3 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) and with built-in and BenQ only : $ xrandr --query Screen 0: minimum 8 x 8, current 4480 x 1440, maximum 32767 x 32767 eDP1 connected primary 1920x1080+0+360 (normal left inverted right x axis y axis) 276mm x 156mm 1920x1080 60.04*+ 59.93 1680x1050 59.95 59.88 1600x1024 60.17 1400x1050 59.98 1600x900 60.00 1280x1024 60.02 1440x900 59.89 1280x960 60.00 1368x768 60.00 1360x768 59.80 59.96 1152x864 60.00 1280x720 60.00 1024x768 60.00 1024x576 60.00 960x540 60.00 800x600 60.32 56.25 864x486 60.00 640x480 59.94 720x405 60.00 640x360 60.00 DP1 disconnected (normal left inverted right x axis y axis) DP2 disconnected (normal left inverted right x axis y axis) DP2-1 connected 2560x1440+1920+0 (normal left inverted right x axis y axis) 597mm x 336mm 2560x1440 59.95*+ 1920x1080 60.00 50.00 59.94 1680x1050 59.88 1600x900 59.98 1280x1024 75.02 60.02 1280x800 59.91 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.08 60.00 832x624 74.55 800x600 75.00 60.32 720x576 50.00 720x480 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 DP2-2 disconnected (normal left inverted right x axis y axis) DP2-3 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) This looks relevant : <https://lists.freedesktop.org/archives/intel- gfx/2016-April/091414.html> I'm running kernel 4.6.0-040600rc6-generic (installed as part of the debugging process). (This bug is the 'next step' from <https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1577760>) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 Uname: Linux 4.6.0-040600rc6-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Wed May 4 13:39:08 2016 DistUpgraded: 2016-04-22 10:05:12,580 DEBUG icon theme changed, re-reading DistroCodename: xenial DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Broadwell-U Integrated Graphics [17aa:2226] InstallationDate: Installed on 2015-05-20 (349 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: LENOVO 20CM001QUK ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.6.0-040600rc6-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to xenial on 2016-04-22 (12 days ago) dmi.bios.date: 04/06/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N10ET33W (1.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CM001QUK dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN10ET33W(1.12):bd04/06/2015:svnLENOVO:pn20CM001QUK:pvrThinkPadX250:rvnLENOVO:rn20CM001QUK:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CM001QUK dmi.product.version: ThinkPad X250 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Wed May 4 12:49:51 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1079 vendor LGD xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1578196/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
