https://bugs.kde.org/show_bug.cgi?id=416739
Yurii-Stefan Zhydetskyi <zhidets...@gmail.com> changed:
What |Removed |Added
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CC| |zhidets...@gmail.com
--- Comment #45 from Yurii-Stefan Zhydetskyi <zhidets...@gmail.com> ---
I have the same problem and here are what I have found.
Operating System: KDE neon 5.20
KDE Plasma Version: 5.20.2
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.0
Kernel Version: 5.4.0-52-generic
OS Type: 64-bit
I have a laptop and two external screens plugged via a docking station.
Laptop screen I always keep closed and disabled.
Here is what I have in the plasmashellrc file in the [ScreenConnectors]
section, just after installing the system:
0=VGA-1 <-- external screen that Plasma sets as a primary screen
1=eDP-1 <-- laptop's screen
2=HDMI-3 <-- external screen
1) I added the default panel to the second screen, rebooted the computer.
Everything works fine.
2) After I had disconnected the laptop from the docking station and had turned
it on, the plasmashellrc file was changed.
0=eDP-1
1=:0.0
2=VGA-1
3=HDMI-3
3) Had returned the laptop to the station.
0=VGA-1
1=eDP-1
2=:0.0
3=HDMI-3
Obviously that on this step I reproduce the defect: the panel on the second
screen disappeared.
4) Disconnected the laptop from the docking station again, turned it on and
connected TV via HDMI.
TV was added to the end of the list. So I got hope that the panel on my second
screen won't be broken again.
But after returning laptop to the docking station I got
0=VGA-1
1=eDP-1
2=:0.0
3=HDMI-1 <-- TV
4=HDMI-3 <-- external screen
I don't know why, but my second screen is always at the end of the list.
5) Now I won't be faced with the problem until I will have plugged to my
laptop some new screen
OTHER SIDE
There is a way to have the defect constantly.
Set as a primary screen not the screen that was by default assigned as primary.
After that VGA-1 and eDP-1 starts to swapping places every time I reboot my
computer.
The behavior is so strange.
It lasts while I don't change the primary screen back, or enable the laptop
screen.
ABOUT MANUAL MODIFYING THE plasmashellrc FILE
1) You can remove from the list any screen, but it'll come back after you'll
have plugged it again.
2) You can change the order of the list and it'll work even after rebooting,
but it'll be returned after you'll have changed the list of the enabled
screens. (etc. Disconnect some screen, disconnect the laptop from the docking
station, connect TV via HDMI)
3) You can't remove from the list the screen that is available now. Plasma just
will restore the last working version of the file. The same will happen if you
move the primary screen from 0 position.
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