http://bugzilla.opensuse.org/show_bug.cgi?id=1085048 http://bugzilla.opensuse.org/show_bug.cgi?id=1085048#c1 Michal Srb changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |msrb@suse.com, | |petr.licman@tieto.com Flags| |needinfo?(petr.licman@tieto | |.com) --- Comment #1 from Michal Srb --- Please provide the output of `xrandr --verbose`, content of /var/log/Xorg.0.log and output of `dmesg`. All before and after disabling the internal display. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1085048 http://bugzilla.opensuse.org/show_bug.cgi?id=1085048#c3 --- Comment #3 from Petr Licman --- All requested logs and also screenshot from display settings attached -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1085048 http://bugzilla.opensuse.org/show_bug.cgi?id=1085048#c5 --- Comment #5 from Petr Licman --- Thanks for quick reply and analysis. I tried kernel 4.16-rc5 from "Kernel of the day" and everything regarding this issue is different. Laptop screen is not detected at all, even lid is open, nothing happens. All 3 external displays are ON and working, but the VGA connected display is duplicate of DVI1 display, but with max resolution 800x600 (not possible to set higher resolution). DVI1 = 1920x1080 DVI2 = 1680x1050 (desktop extended over those DVI1 and DVI2 displays - OK) VGA = 800x600 (max available, but it is full HD 1920x1080 display), and main problem - it is duplicating/mirroring image of DVI1 Also quite lot of artefacts (interpolated lines, glitches) are shown during startup (login screen of KDE), when desktop is shown artefacts are gone, when power off/ restart window is shown (restart, shutdown, logoff), again it is not readable, full of artefacts. New kernel solves the issue with disabled external display but brings a lot of another issues. Do you have any suggestion please? Could new logs help here? I guess there is nothing that can be done from your side, it seems to be kernel issue. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1085048 http://bugzilla.opensuse.org/show_bug.cgi?id=1085048#c6 Max Staudt changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mstaudt@suse.com --- Comment #6 from Max Staudt --- I'm afraid we may be unable to reproduce, much less fix this issue. I'll see whether I can reproduce it with some desktop hardware we have laying around, but chances are that we'd really need your laptop and docking station to analyze your issues. Sorry, but if we can fix this at all, it'll take time. Could you please try opening an upstream bug? Chances are that the actual driver developers have a better clue of what may be happening - with a bit of luck, your description is precise enough to point the upstream developers in the right direction: https://bugs.freedesktop.org/ -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1085048 http://bugzilla.opensuse.org/show_bug.cgi?id=1085048#c7 --- Comment #7 from Petr Licman --- Thank you for your time. I will try to open bug on freedesktop.org, obviously it is not OpenSUSE only related bug. One new finding, I have tested the latest kernel of the day and also the latest build of Ubuntu 18.04 (2nd April 2018) and both have the same behaviour, - laptop lid is closed and its display disabled - OK. - all 3 external displays detected, enabled and working as separated screens, desktop extended to all of them. Just VGA display is able to use 800x600 at max (even it is 1920x1080 display). But it is not mirroring anymore. - Ubuntu 18.04 from 2nd April is able to detect the displays properly in Live mode, all 3 displays are working in full resolutions! But once system is installed to HDD, after reboot the display connected to VGA is at 800x600 (as in OpenSuse with the latest kernel of the day). Could it be related to something during boot process? GRUB? I have tried to change resolution of GRUB menu, but still the same issue. Any kernel option that is used/not used/different? -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1085048 http://bugzilla.opensuse.org/show_bug.cgi?id=1085048#c9 Max Staudt changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |UPSTREAM --- Comment #9 from Max Staudt --- Okay, I've tried to reproduce this. I've set up a machine with a Radeon Tonga PRO [Radeon R9 285/380] [1002:6939], which has 4 outputs, all connected: - DisplayPort - HDMI - DVI-D - VGA via DVI-I I've disabled the DP screen, and afterwards all three other screens were still functional. In your case, the setup seems to be different: - eDP (connected - the internal display) - DisplayPort-0 (unconnected) - DisplayPort-1 (connected) - DisplayPort-2 (connected) - DisplayPort-3 (connected) where DP-1..3 are the DVI/VGA screens, connected via adapters that are probably part of the docking station. Who knows, maybe even via DP MST. Unfortunately we don't have the hardware to test this, sorry :( So I'm afraid you'll have to ask upstream, as suggested. RESOLVED UPSTREAM, sorry :( -- You are receiving this mail because: You are on the CC list for the bug.