Problematic graphics glitches (picture)

staar2 · 2016-02-11 19:10:26

These glitches are random and appear mostly in a left side and unable to rerender some area. I am not sure but these could be related to Qt-based applications, for an example PulseAudio-control, KeePass X, atom text editor could cause this. After closing the application the glitch disappears, but after reopening the same issue occurs.

I am using Openbox, latest kernel (problem remained even with older kernel versions), Nvidia drivers.
Laptop Dell E6420.

Trilby · 2016-02-11 19:34:58

What's the "glitch"? I don't see anything that stands out as unusual in your image. What are we looking for?

staar2 · 2016-02-11 21:17:23

The rectangle you see part of browser is actually never again rerendered.

Trilby · 2016-02-11 21:37:35

Perhaps I'm just being dense, but that doesn't help. This looks to me like a small segment of a screenshot where I see part of a browser, and part of what I think is a terminal window or an editor with line numbers showing that looks like it might either be tiled next to the browser window or overlapping the browser window. But still, I'm not sure what the problem actually is.

What *should* this look like?

Can you provide a link to the full screenshot? Can you highlight in the image where the problem is? Can you describe where or what the problem is? Don't make us hunt for it.

staar2 · 2016-02-11 21:50:53

I made quickly GIF to demonstrate the problem in background you can see that the browser should be in foreground and maximized but the artifact remained in same place.

http://imgur.com/VGu3F2b

Trilby · 2016-02-11 22:31:35

Ah, thanks, that helps. But that definitely doesn't look like a graphics glitch to me - it looks like your terminal has an "always on top" property set.

Does this only happen when the browser is under a terminal, or does it happen with other windows?

staar2 · 2016-02-12 08:27:55

Do not get mislead by the terminal title, this just could be any X11 window that would be last.

WorMzy · 2016-02-12 08:36:37

Can you get any information about this square with xprop/obxprop?

staar2 · 2016-02-12 10:55:04

Tried but the problem is that it's not the window object, some strange overlay. I am not sure if it's some Nvidia driver issue, because this has remained from the beginning of Arch installation. Also I haven't seen this with other OS-s (Windows, Ubuntu etc.)

```
X Error of failed request: BadWindow (invalid Window parameter)
Major opcode of failed request: 15 (X_QueryTree)
Resource id in failed request: 0x0
Serial number of failed request: 25
Current serial number in output stream: 25
```

WorMzy · 2016-02-12 11:05:06

If it is an overlay, perhaps it's something to do with openbox's little-known dock. The default config puts this in the top-left of the screen, so try changing your rc.xml to put it in the bottom-right, reload the openbox configuration, and see if the window moves.

staar2 · 2016-02-12 19:43:02

Ty for good tip tried to reboot the openbox --restart, but didn't help. I am not sure how to reboot X11 server without restarting whole machine ?

WorMzy · 2016-02-12 20:41:32

openbox --reconfigure

should do it. If it is the tray, then the glitched square should move to where you configured the tray to be. If it doesn't, then my tray theory is (probably) wrong.

staar2 · 2016-02-14 20:32:09

I tried that also, but this seems to be not OpenBox based issue. I have no skills to debug the X11 or graphics related bugs/glitches, what are the tools used for that ?

Arch Linux

#1 2016-02-11 19:10:26

Problematic graphics glitches (picture)

#2 2016-02-11 19:34:58

Re: Problematic graphics glitches (picture)

#3 2016-02-11 21:17:23

Re: Problematic graphics glitches (picture)

#4 2016-02-11 21:37:35

Re: Problematic graphics glitches (picture)

#5 2016-02-11 21:50:53

Re: Problematic graphics glitches (picture)

#6 2016-02-11 22:31:35

Re: Problematic graphics glitches (picture)

#7 2016-02-12 08:27:55

Re: Problematic graphics glitches (picture)

#8 2016-02-12 08:36:37

Re: Problematic graphics glitches (picture)

#9 2016-02-12 10:55:04

Re: Problematic graphics glitches (picture)

#10 2016-02-12 11:05:06

Re: Problematic graphics glitches (picture)

#11 2016-02-12 19:43:02

Re: Problematic graphics glitches (picture)

#12 2016-02-12 20:41:32

Re: Problematic graphics glitches (picture)

#13 2016-02-14 20:32:09

Re: Problematic graphics glitches (picture)

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