[SOLVED (?)] KDE (Qt) apps UI completely broken after a while

MightyPork · 2015-07-23 10:49:40

This started two days ago, after some update.

When the glitch occurs, parts of application windows do not redraw, menu items turn invisible, font rendering gets all messed up, texts in dialogs are misplaced and obscured by other elements, buttons invisible.
See the following screenhsots.

It doesn't happen after reboot - it's OK for about an hour or two, but then suddenly all those apps are affected - or almost all. It depends.

Screenshots

http://jpeg.cz/images/2015/07/23/dMiR0.png
http://jpeg.cz/images/2015/07/23/disr9.png
http://jpeg.cz/images/2015/07/23/LNOuo.png
http://jpeg.cz/images/2015/07/23/Cnodi.png

Here's terminal output of some of those apps (sorry, didnt think of copying the text - this is one button press...)

http://jpeg.cz/images/2015/07/23/mGVEi.png
http://jpeg.cz/images/2015/07/23/YsBH.png

Affected:
- Krusader
- SpeedCrunch
- Gwenview
- Dolphin
- Clementine - broken plus can't play anything - it says it can't connect to server - presumably phonon. The error dialog is garbled so I couldn't reas any details.
- the KDE crash dialog thing

Fine:
- Terminator
- Chrome
- PhpStorm, SublimeText3
- KCalc
- Firefox
- Ristretto

So it must be some shared library that those apps use, probably qt4. I'm now experimenting with an outdated qt4 version, hoping to get some conclusion soon.

I use Xfce4, it's been working OK for over a year. I've never experienced this before.
I'll be really grateful for a fix or idea what to check - it's really damaging to my workflow.

Last edited by MightyPork (2015-07-24 14:55:49)

Awebb · 2015-07-23 11:28:34

Could you turn your images into links according to the rules? Some of us are on a tight traffic budget.

MightyPork · 2015-07-23 12:03:23

Awebb wrote:

Could you turn your images into links according to the rules? Some of us are on a tight traffic budget.

Done.

Last edited by MightyPork (2015-07-23 12:05:45)

Awebb · 2015-07-23 12:14:26

Some infos about your setup would make sense. Is it KDE4 or plasma? What tools do you have installed, that might tamper with the Qt settings? What drivers on what video card do you use and what are your compositor settings?

MightyPork · 2015-07-23 12:20:15

Awebb wrote:

Some infos about your setup would make sense. Is it KDE4 or plasma? What tools do you have installed, that might tamper with the Qt settings? What drivers on what video card do you use and what are your compositor settings?

As stated, basically vanilla xfce4. I use some KDE apps because there's no good alternative (eg. Krusader), so I have all the kdebase garbage installed.

- xfwm4
- nothing that should affect qt or gtk settings, afaik
- it's Intel integrated graphics, with mesa. No hardware acceleration.
- compositor - compositing is enabled in xfwm4
- all relevant packages are from official repositories, not from aur / testing.

right now I've downgraded qt4 to a version from (I think) April, but it'll take a while to be able to verify if the glitch is gone or not. It might also be a x server bug, as it's been updating a lot recently.

Last edited by MightyPork (2015-07-23 12:21:53)

V1del · 2015-07-23 14:49:00

I'd think the current intel driver bugs are more likely of a cause: https://wiki.archlinux.org/index.php/In … SNA_issues

gwenview uses Qt5, KCalc uses Qt4 so there's somewhat of a discrepancy in your assumption.

off-topic: the clementine problem can't be phonon, it doesn't use it. It probably tries to use jack, which points to a borked gstreamer0.10 configuration, so maybe you should look into that

MightyPork · 2015-07-23 15:44:44

V1del wrote:

I'd think the current intel driver bugs are more likely of a cause: https://wiki.archlinux.org/index.php/In … SNA_issues
gwenview uses Qt5, KCalc uses Qt4 so there's somewhat of a discrepancy in your assumption.
off-topic: the clementine problem can't be phonon, it doesn't use it. It probably tries to use jack, which points to a borked gstreamer0.10 configuration, so maybe you should look into that

Interesting, that might be the other issue I'm seeing sometimes (slightly corrupt text in almost all applications).

For now I've downgraded "qt4" to to "4.8.6-4". If it'll work OK today, I'll add it to the no-update list and keep it there for a while.
I don't want to apply two fixes at once, so after this works or doesn't work, I'll try the intel one.

With Clementine, the described problem happens ONLY during the UI breakage. I can use it just fine otherwise—maybe you'll get some hint from that..?

Last edited by MightyPork (2015-07-23 15:45:40)

OneHundRedOf · 2015-07-23 17:18:14

I'm also affected by this.

Problems started couple weeks back, when Plasma started randomly crashing from time to time. Few days ago this glitch started to occur, usually after waking up from sleep. Changing acceleration from SNA to UXA seems to help.

Only bug report about this I could find is 349677 . Anyone know other reports I can vote on/follow?

MightyPork · 2015-07-23 18:01:07

It can still be a red herring, but since downgrading qt4 to 4.8.6-4 I haven't experienced the issue. Give it a try. (everything else is 100% updated)
(Possibly any 4.8.6 will work, this is the oldest one in my cache).

Last edited by MightyPork (2015-07-23 18:04:05)

MightyPork · 2015-07-23 19:02:32

Nevermind, the glitch is back. I wonder what could I try to debug it, now that it's active. Suggestions?

edit--
I still don't know what's the trigger - maybe just some daemon crashes... been running for about 5 hours before it happened. Trying the intel fix now.

Last edited by MightyPork (2015-07-23 19:08:05)

MightyPork · 2015-07-23 21:02:43

I can now confirm that neither downgrading qt4, nor the intel fix have any effect whatsoever.
Earlier I also tried downgrading all kde* and qt* packages a version or two, and not good either. Next I'll try downgrading x-server and the intel drivers.

MightyPork · 2015-07-24 06:59:23

Downgrading xorg-server nor mesa has no effect either. I'm out of ideas, really

MightyPork · 2015-07-24 07:03:06

Here's a workaround that seems to work -> Qt4 artifacts possibly related to Qt4 package update

Arch Linux

#1 2015-07-23 10:49:40

[SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#2 2015-07-23 11:28:34

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#3 2015-07-23 12:03:23

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#4 2015-07-23 12:14:26

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#5 2015-07-23 12:20:15

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#6 2015-07-23 14:49:00

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#7 2015-07-23 15:44:44

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#8 2015-07-23 17:18:14

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#9 2015-07-23 18:01:07

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#10 2015-07-23 19:02:32

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#11 2015-07-23 21:02:43

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#12 2015-07-24 06:59:23

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

#13 2015-07-24 07:03:06

Re: [SOLVED (?)] KDE (Qt) apps UI completely broken after a while

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