Arch Linux

Also, sometimes Thunderbird or Firefox content is not repaint. Need to switch to another window for repainting to happen.

in order to find which package is the culprit ( kernel or mesa ) you should downgrade one of these packages ( go to /var/cache/pacman/pkg, and type "pacman -U the_name_of_the_package_file" )

Thanks, didn’t think about this.

It’s mesa.

Present in 11.0.1 as well?

Sorry, it’s in mesa 11.0.1, never had 11.0 on my system (I suppose this one never left testing).

Still happening with 11.0.2 in case you were wondering.

Maybe I should report upstream, but since I don’t have any log or error message to show this, I don’t know where to begin…

@Bruno Pagani: maybe I have a clue for your problem :

I discovered a problem related to llvm 3.7.0-4 and llvm-libs 3.7.0-4 packages,

these packages are used to build mesa 11 packages, with my configuration ( amd radeon HD4650, cpu pentium dual core E6800 3.33 Ghz ) mesa 11 triggers a bug on some openGL functions, for example every openGL programs who use the "glRasterPos2i()" openGLfunction will crash or will have a weird display,

to solve my problem I decided to downgrade llvm/llvm-libs to the previous version ( 3.6.2-4 ) and then I rebuilt mesa 11.0.2 with llvm 3.6.2, the result is that my bug is gone, all is ok now,

maybe your problem is related also to llvm 3.7.0,

I created a bug report in mesa and llvm websites :

https://bugs.freedesktop.org/show_bug.cgi?id=92214
https://llvm.org/bugs/show_bug.cgi?id=25021

could be also a problem related to glibc but I am not sure

I’m now (after a quite long session of computer use) having hell-tearing and flickering on my screen, making my laptop unusable. Also, fan began to run heavily. Closing everything calmed down things.

The repaint bug now also affect Dolphin (KDE Filemanager) a lot, i.e. folder names and icons are not changed when opening one, only refreshed when moving cursor above them.

@foutrelis - can you make sure we include that llvm fix to fix mesa issues?

This seems less terrible with latest (11.0.5) mesa update. I didn’t have the time to try recompiling mesa using older llvm though, so not even sure this is related.

Still present with latest mesa (11.1.0-2). I might have the time to look a bit deeper into this friday and eventually report upstream.

We had several llvm and mesa updates. Is this still an issue?

Sorry, I had forgotten to report here. It has been solved, yes.