https://bugs.kde.org/show_bug.cgi?id=358735
Bug ID: 358735
Summary: Several seemingly related monitor connect/disconnect
issues
Product: plasmashell
Version: master
Platform: Archlinux Packages
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: general
Assignee: k...@davidedmundson.co.uk
Reporter: t...@r.je
CC: bhus...@gmail.com, plasma-b...@kde.org
I have a desktop and laptop and both suffer problems with monitors, I'm
assuming these are related as the problems are similar. My desktop suffers the
problem detailed here: https://bugs.kde.org/show_bug.cgi?id=340267 but with
slightly different results:
1. Turn the monitor off
2. Turn the monitor on
3. Sometimes plasma will crash entirely and return to SDDM
3a. Sometimes plasma will still be running but in an unstable state, all window
decorations will disappear from opened windows and new programs cannot be
launched. Existing programs can be used as normal (although not moved around
the screen or minimized/maximized). I have to fix this by restarting SDDM in
another TTY
Alternative problem:
1. Log out of plasma back to the SDDM login screen
2. Turn off the monitor
3. Turn on the monitor
4. SDDM now displays a black screen and a mouse pointer. The only way to
recover is switching to a different TTY and restarting SDDM. This may be an
SDDM bug, if it is, it may help you track down the problems with Plasma.
Hardware: nvidia GTX 980Ti using nvidia driver + Asus P287Q
Secondly, I have different, but similar problems with my laptop
Firstly using HDMI out:
1. Sometimes when connecting a HDMI monitor plasma would crash entirely and
require restarting SDDM manually. This hasn't happened since 5.5 so may have
been resolved, although it was always intermittent.
2. This still happens, after disconnecting a HDMI monitor plasma will become
unstable. Programs will crash and odd display issues will appear on the laptop
screen, e.g. fuzzy lines on places on the screen and wrongly drawn pixels
3. When a monitor is connected using mini-displayport the laptop screen turns
off and the desktop is only displayed on the external monitor. This in itself
is likely not a bug, however when pressing the keyboard key to cycle monitor
states (e.g. clone, different desktop, etc) different effects occur:
3a. If the external monitor is displaying the desktop and the laptop screen is
off, it works fine
3b. If the external monitor is set up as a clone of the laptop screen it works
fine
3c. If the external monitor is a separate screen that increases the size of the
desktop strange things start to happen:
3c. i) Sometimes the laptop screen will freeze entirely but if I move the mouse
around so it appears on the external monitor, I can use the external monitor
perfectly, open programs on it and use them (with the laptop screen showing the
same frozen image)
3c. ii) Sometimes plasma will become unstable. Programs will crash and new
programs cannot be opened.
3c. iii) Sometimes (and this is less frequently than the other two) it will
work as expected
4. If I've been using the external monitor in one if its usable states (3a, 3b,
3c. iii) and unplug the monitor, I almost always have to restart SDDM soon
afterwards due to crashes and strange behaviour.
Hardware: Asus N550 monitor using Intel graphics driver
I realise these may be somewhat unreleated, however there is a huge problem
with KDE and external monitors. On both my laptop and desktop I have to restart
SDDM daily due to issues with unplugging/plugging in/sleeping monitors.
Let me know if you'd like me to post any logs (and how to turn them on/find
them).
Both desktop and laptop are running ArchLinux with up to date packages from
their official repos. I do not have the testing repo enabled.
Reproducible: Sometimes
--
You are receiving this mail because:
You are watching all bug changes.
