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#1 2014-01-31 01:22:24

realcnbs
Member
Registered: 2014-01-31
Posts: 6

KDE render problems

Sometimes getting windows contents not rendered, can see only window decorations, example - http://i.imgur.com/QX96YZz.png
Log out and log in cycle helps, sometimes have to do that a few times.
Any hints what it could be?

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#2 2014-02-01 02:04:44

davidm
Member
Registered: 2009-04-25
Posts: 371

Re: KDE render problems

Which graphics driver are you using?  Can you try another to see if the problem persists just to test?

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#3 2014-02-01 14:47:06

realcnbs
Member
Registered: 2014-01-31
Posts: 6

Re: KDE render problems

I am using intel driver, though i have bumblebee setup but don't think it is related because intel is used for DE rendering. Not sure how can i change the intel driver.
Any logs i should look into? Should journalctl have something?

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#4 2014-02-01 22:25:00

Amanda S
Member
Registered: 2013-09-21
Posts: 276
Website

Re: KDE render problems

KDE is very buggy in this current release.


If it ain't broke, you haven't tweaked it enough...

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#5 2014-02-02 00:46:31

okubax
Member
From: Kent, UK.
Registered: 2010-04-24
Posts: 210
Website

Re: KDE render problems

Amarildo wrote:

KDE is very buggy in this current release.

According to who? I'm not having any problems with Catalyst drivers

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#6 2014-02-02 01:09:08

Amanda S
Member
Registered: 2013-09-21
Posts: 276
Website

Re: KDE render problems

okubax wrote:
Amarildo wrote:

KDE is very buggy in this current release.

According to who? I'm not having any problems with Catalyst drivers

According to me. I have a NVIDIA card and it's annoying having all windows popping out even when they're minimize. Hell, I locked my machine (Ctrl + Alt + L) while my facebook was open and guess what happened? Yes, the lock screen was bugged and showed my facebook page, everything flickering.


If it ain't broke, you haven't tweaked it enough...

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#7 2014-02-02 04:30:25

realcnbs
Member
Registered: 2014-01-31
Posts: 6

Re: KDE render problems

Cmon guys, don't start this flood, better tell me how do i debug this problem, where do i look.
One more discovery: If i kill the kwin i can see the windows contents, but cannot interact with them in any way.

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#8 2014-02-05 06:11:41

JohannesE
Member
Registered: 2009-08-17
Posts: 22

Re: KDE render problems

I'm having the same problem. Disabling the desktop effects (ALT+SHIFT+F12) brings the contents of the windows back on my system. However, re-enabling the effects makes the windows become black again.

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#9 2014-02-05 08:05:18

drakkan
Member
Registered: 2007-02-24
Posts: 27

Re: KDE render problems

realcnbs wrote:

Cmon guys, don't start this flood, better tell me how do i debug this problem, where do i look.
One more discovery: If i kill the kwin i can see the windows contents, but cannot interact with them in any way.

are you using xf86-video-intel 2.99.909-2? if no this is a know problem and the solution is update to the latest version

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#10 2014-02-06 08:37:51

MilanKnizek
Member
Registered: 2005-12-13
Posts: 88

Re: KDE render problems

drakkan wrote:

are you using xf86-video-intel 2.99.909-2? if no this is a know problem and the solution is update to the latest version

This bug with desktop effects also hit me cca 3 days ago after system update. I do have extra/xf86-video-intel 2.99.909-2 already and still no go.

Could kernel packages have any effect on this bug? (I keep slightly older linux-3.12.3-1, linux-api-headers-3.10.6-1, and linux-headers-3.12.3-1 because of other manually compiled packages.)


--
Milan Knizek
http://knizek.net

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#11 2014-02-07 03:09:41

amckee
Member
From: Cruise Ship Earth
Registered: 2012-02-13
Posts: 25
Website

Re: KDE render problems

While this does seem more in the realm of an Intel driver issue, it seems like the window decorator is getting wonky. I'm not entirely sure I've ever been able to track it down, but various setups do seem to work for me. I'm currently using KDE on Arch with nVidia binary drivers, and Compiz with Emerald doesn't seem to complain.

You may be able to resurrect your session without a logout/in by restarting the default KDE window decorator:

killall -9 kwin;kwin --replace

It's possible that there are two window decorators fighting over which gets to draw, ending in a stalemate (this is totally guessing though). So by adding  '--replace'  you are telling kwin to feel free to knock aside anything else attempting the same job (emerald).

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#12 2014-02-08 18:13:31

MadCat_X
Member
Registered: 2009-10-08
Posts: 189

Re: KDE render problems

MilanKnizek wrote:
drakkan wrote:

are you using xf86-video-intel 2.99.909-2? if no this is a know problem and the solution is update to the latest version

This bug with desktop effects also hit me cca 3 days ago after system update. I do have extra/xf86-video-intel 2.99.909-2 already and still no go.

Could kernel packages have any effect on this bug? (I keep slightly older linux-3.12.3-1, linux-api-headers-3.10.6-1, and linux-headers-3.12.3-1 because of other manually compiled packages.)

2.99.909.-2 Xorg drivers and 3.13.1 kernel here and I'm affected by this too. There are a few workarounds such as disabling the compositing altogether or using XRender instead of OpenGL. It's rather odd that it doesn't happen regularly and a reboot usually fixes this which suggests that there might be some sort of race condition causing this. The problem is probably somewhere in X because restarting KWin doesn't help.

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#13 2014-02-09 11:32:40

theodore
Member
Registered: 2008-09-09
Posts: 151

Re: KDE render problems

may be it is related to the mesa package, as it turned to be in our case here https://bbs.archlinux.org/viewtopic.php … 2#p1373712 using the mesa-git package worked for the most of us.

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#14 2014-02-16 02:10:17

hippieben
Member
Registered: 2013-10-27
Posts: 218

Re: KDE render problems

Do you have xfce4 or openbox installed?  I had this problem when I was playing around with openbox, as soon as I uninstalled openbox (or xfce4, don't remember which) the problem was sloved

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#15 2014-02-16 02:19:18

realcnbs
Member
Registered: 2014-01-31
Posts: 6

Re: KDE render problems

Oh, never got any notifications before the last one. Will check all your suggestions guys. Also would great to have a way to reproduce this problem manually.

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#16 2014-02-18 12:31:43

fr!tz
Member
Registered: 2013-03-17
Posts: 2

Re: KDE render problems

I have a similar problem since the last system update. In my case the effect looks like this Konsole-window: http://i.imgur.com/0y64smv.png?1

I also use the intel driver (2.99.910-1). The effect disappears when disabling the desktop effects.

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