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Plasma 5: Unplugging second monitor kills kwin
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mhex
Tux's lil' helper
Tux's lil' helper


Joined: 18 Feb 2005
Posts: 143
Location: Germany/Berlin

PostPosted: Sat Apr 09, 2016 7:08 pm    Post subject: Plasma 5: Unplugging second monitor kills kwin Reply with quote

Unplugging a second monitor from a running Plasma desktop on a laptop kills the windowmanager.
Window decorations and taskbar dissappeared. No switching between virtual desktops possible, no switching between windows possible. The only solution is to logout from the desktop and login again.
I didn't try it out on a docking station at work but if it happen there too i have to switch back to KDE4. There are other strange things happen with Plasma 5. Not funny at all.
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asturm
Developer
Developer


Joined: 05 Apr 2007
Posts: 7112
Location: Austria

PostPosted: Sun Apr 10, 2016 12:57 am    Post subject: Reply with quote

Unfortunately there are known issues with multi-monitor caused by Qt. One possible workaround for some has been to remove kscreen and entirely rely on xrandr for the time being.
_________________
backend.cpp:92:2: warning: #warning TODO - this error message is about as useful as a cooling unit in the arctic
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davidm
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Joined: 26 Apr 2009
Posts: 557
Location: US

PostPosted: Sun Apr 10, 2016 6:35 pm    Post subject: Reply with quote

genstorm wrote:
Unfortunately there are known issues with multi-monitor caused by Qt. One possible workaround for some has been to remove kscreen and entirely rely on xrandr for the time being.


Would using the Gentoo qt overlay in order to pull in qt5.6 be a viable (though technically unsupported) option for him to try? I heard there were some good fixes for this sort of thing in qt 5.6. I was debating on whether updating to it myself even though things seem to be working well on my dual monitor setup.
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