https://bugs.kde.org/show_bug.cgi?id=363578
Bug ID: 363578
Summary: Unable to set lower resolution on high resolution
laptop display
Product: plasmashell
Version: 5.6.4
Platform: openSUSE RPMs
OS: Linux
Status: UNCONFIRMED
Severity: major
Priority: NOR
Component: Multi-screen support
Assignee: aleix...@kde.org
Reporter: mikael.sprin...@gmail.com
CC: plasma-b...@kde.org
I am running openSUSE Tumbleweed on a Dell Precision M4800 laptop with a
display having a native resolution of 3200x1800. The graphics card is NVIDIA, I
have NVIDIA proprietary drivers installed manually. I use the laptop both
docked and undocked. When docked I have two external monitors connected with a
native resolution of 2560x1440 each.
Docked or not, Plasma is unable to let me change the resolution of the laptop
display. If I start Configure Desktop/Display and Monitor there is no slider
for adjusting the laptop display resolution, it only shows "Resolution:
3200x1800" for DP-4 which is the laptop display. If I have external monitors
attached (when docked) these monitors will have a slider that makes it possible
to adjust their individual resolution when selecting them.
Using NVIDIA X Server Settings it is possible to change the laptop display
resolution, both when the laptop is docked using two external monitors and when
it is not docked, only using the laptop display. But when I change the laptop
display resolution using NVIDIA Settings it is as if Plasma doesn't understand
this. The desktop background of the laptop display extends over the next
adjacent display. And if I do this when the laptop is undocked using only the
laptop display all Plasma widgets including the panel disappear. Only the top
left corner of the desktop is visible, the panel is probably outside of what is
shown on the screen and therefore not visible. In short, it's as if Plasma
doesn't understand that the resolution has changed, it is only showing part of
the desktop.
Since the native resolution of the laptop display is 3200x1800 at the moment
the laptop is almost unusable when not docked. When using it docked and having
two external monitors attached I simply turn it of using NVIDIA Settings.
This used to work with KDE4.
Reproducible: Always
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