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atemv
n00b
Joined: 09 Aug 2014
Posts: 63
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 Posted: Mon Apr 11, 2016 1:12 pm Post subject: Black screen with mouse on kde5 [SOLVED] |
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I upgraded to KDE plasma 5.5.5 following the KDE 4.11 the Gentoo wiki page:
https://wiki.gentoo.org/wiki/KDE/Plasma_5_upgrade#SDDM_display_issues
sddm works fine, I can start a working openbox session with it. (Yes sddm is in the video group)
However, when I start plasma, I get a dark screen with working a mouse and a limited krunner.
I have an extensive xorg logfile:
http://pastebin.com/m0mHVXJq
I extracted some relevant lines from it:
| Code: | QCoreApplication::arguments: Please instantiate the QApplication object first
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
kscreen: Failed to request backend: unknown error |
I use openrc and a Nvidia GeForce GTX 760 with 361.28 driver version with 3 displays but two xscreens.
Last edited by atemv on Mon Apr 11, 2016 2:29 pm; edited 1 time in total |
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asturm
Developer
Joined: 05 Apr 2007
Posts: 8936
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| Posted: Mon Apr 11, 2016 1:17 pm Post subject: |
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| Provided you use openrc: dbus and consolekit are in default runlevel? |
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atemv
n00b
Joined: 09 Aug 2014
Posts: 63
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| Posted: Mon Apr 11, 2016 1:20 pm Post subject: |
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| genstorm wrote: | | Provided you use openrc: dbus and consolekit are in default runlevel? |
Yes they are. |
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asturm
Developer
Joined: 05 Apr 2007
Posts: 8936
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| Posted: Mon Apr 11, 2016 1:45 pm Post subject: |
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| Based on error output, you can try to remove ~/.cache directory or temporarily remove kscreen to take it out of the equation. |
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atemv
n00b
Joined: 09 Aug 2014
Posts: 63
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| Posted: Mon Apr 11, 2016 2:29 pm Post subject: |
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| genstorm wrote: | | Based on error output, you can try to remove ~/.cache directory or temporarily remove kscreen to take it out of the equation. |
I tried it it had no effect.
However I disabled Xinerama in my xorg.conf, and this solved the problem. |
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deefster
Tux's lil' helper
Joined: 19 Apr 2004
Posts: 77
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| Posted: Mon May 09, 2016 3:39 am Post subject: |
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I had the very same issue, where the greeter would start ok, but after authenticating the plasma session was just a black screen.
In my case, I had to change my .xinitrc to only contain "startkde". Originally I had "exec startkde", which does not work for some reason. |
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