There has been a lot of work upstream in the graphics stack around MST, but not all of it has been merged yet. Would you be able to test with drm-next to see if the problem is resolved there? http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-next/current/
If it's resolved there, there will need to some effort to bisect the particular commit that fixed it and backport it to an Ubuntu kernel. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1687413 Title: MST display setup show shifted, flickering picture in second half of the screen Status in Dell Sputnik: New Status in linux package in Ubuntu: Incomplete Bug description: Trying to set up MST display with Intel graphics card (Dell XPS 12 9360, Intel HD 620), but the second half of the screen is shifted randomly and is flickering (attached screenshot). uname -r 4.10.0-14-generic cat ~/.xprofile #!/bin/sh xrandr --addmode DP-1 "2560x2880" && xrandr --output DP-1 --above eDP-1 --mode "2560x2880" && xrandr --output DP-2 --right-of DP-1 --mode "2560x2880" ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.10.0-14-generic 4.10.0-14.16~16.04.1 ProcVersionSignature: Ubuntu 4.10.0-14.16~16.04.1-generic 4.10.3 Uname: Linux 4.10.0-14-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: Unity Date: Mon May 1 09:39:32 2017 InstallationDate: Installed on 2017-04-15 (16 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) SourcePackage: linux-hwe-edge UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1687413/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
