Continuous XRandROutput updates once screen is suspended by energy saving
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
kscreen (Ubuntu) |
Incomplete
|
Undecided
|
Unassigned |
Bug Description
System information:
Ubuntu 18.04.2 LTS
kscreen version 4:5.12.7-0ubuntu0.1
Kernel: Linux pcalice57 4.15.0-52-generic #56-Ubuntu SMP Tue Jun 4 22:49:08 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
AMD Radeon Pro WX 2100 with two screens (HP LP2475w) on displayport, running amdgpu pro drivers
Problem:
Once the screens get switched off by the energy saver of KDE (Option: Screen energy saving in Energy Saving system setting), continuous messages appear in the syslog of the screens being connected and disconnected. Please find a short excerpt of the log messages here and longer attached as file. Messages given from kscreen.xrandr flicker between connected and not connected several times per second.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
Jun 19 16:02:49 pcalice57 org.kde.
[...]
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Jun 19 16:02:50 pcalice57 org.kde.
Several times X11 did not wake up from this, unfortuantenly I cannot provide the useful debug information for the latter. However, already this continuous flickering seems not correct.
Many thanks for any ideas on this.
Status changed to 'Confirmed' because the bug affects multiple users.