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Plasma 5 keep crashing after IDLE
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xtralayer
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Joined: 09 May 2016
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PostPosted: Mon May 09, 2016 10:30 pm    Post subject: Plasma 5 keep crashing after IDLE Reply with quote

Hi,

My Plasma 5 keeps crashing after a few minutes of idle (about 10 minutes), I get the following in dmesg:

[ 8193.025615] kactivitymanage[5103]: segfault at 7f5d5d086c50 ip 00007f5d48077a91 sp 00007ffd95e34f48 error 4 in libQt5Sql.so.5.5.1[7f5d48062000+47000]
[ 8194.062581] nvidia-modeset: Freed GPU:0 (GPU-71d0d563-4083-5e38-6fb4-502c20dd4197) @ PCI:0000:01:00.0
[ 8214.122853] nvidia-modeset: Allocated GPU:0 (GPU-71d0d563-4083-5e38-6fb4-502c20dd4197) @ PCI:0000:01:00.0
[13428.664923] kactivitymanage[25521]: segfault at 7f14c6417c50 ip 00007f14a821ba91 sp 00007ffddf56f1c8 error 4 in libQt5Sql.so.5.5.1[7f14a8206000+47000]

I looked around and alot of people seem to be getting this and it may be related to xprotobuf but I'm not sure, I tried using downgrading that package and using both unstable and stable plasma 5 in portage but it still crashes if I'm away for a few minutes.

Thanks.
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xtralayer
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Joined: 09 May 2016
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PostPosted: Tue May 10, 2016 4:12 am    Post subject: Reply with quote

Well running startx alongside DISPLAY=:0 kwin_x11 & fixes it somehow...
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xtralayer
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PostPosted: Tue May 10, 2016 11:00 pm    Post subject: Reply with quote

It crashes now after turning the hdmi monitor on and off, the monitor is hooked to a gtx 980 ti (nvidia).
crash log: http://pastebin.com/RfLT4AZ2

UPDATE: seems to be an old bug from 2014 that still haven't been fixed: https://bugs.kde.org/show_bug.cgi?id=340267

I'll switch to another environment till this gets resolved.
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asturm
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Joined: 05 Apr 2007
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PostPosted: Sat May 21, 2016 7:50 am    Post subject: Reply with quote

There's good news in so far as I have tested a patch yesterday that fixes the issue for me. However it bumps the plasma-workspace requirement to Qt-5.6.0 and I wouldn't recommend upgrading to it before 5.6.1 is around.
_________________
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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dmpogo
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Joined: 02 Sep 2004
Posts: 2509
Location: Canada

PostPosted: Tue Sep 13, 2016 8:28 pm    Post subject: Reply with quote

I see this kactivitymanage crashes with Qt-5.6.1 still

Quote:

Sep 13 14:07:24 wheeler kernel: kactivitymanage[28333]: segfault at 7f382ddd1c50 ip 00007f380c59e171 sp 00007fff87faf588 error 4 in libQt5Sql.so.5.6.1[7f380c589000+43000]


Last time it was when I tried to change the font.

seems more when plasma is launched via sddm than via startx
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