On Sunday 23 January 2022 16:40:43 E. Liddell wrote:
On Sun, 23 Jan 2022 12:44:35 +0100> ajh.valmer@free.fr wrote:
If they're gtk apps? Maybe it's a gtk setting probem? Kate
Which Gtk applications should be installed ? Normally Chromium and Chrome-google do that automatically or inform if there is a missing package...
Chromium is GTK3, but the original screen capture looked more like a broken video acceleration problem. Judging from all the hideous stuff in the Chromium ebuild, any of X, mesa, opengl, GTK3, and various types of support in the video driver (for opencl, vulkan, etc.) *could* be the culprit, but the video driver is the most likely to be responsible.
I'd recommend the nvidia proprietary driver over nouveau in this case, because nouveau is reverse-engineered and doesn't always handle all the capabilities of every card correctly. Make sure you have the right version for your hardware—it forks periodically.
The problem is resolved. In Chromium and Chrome I had to disable the 3D acceleration. My Nvidia video card is old. Sorry, I apologize, I could have found it, by typing in google : "Why is hardware acceleration not working in Chrome ?" who gave me this solution.
So now, which Nvidia or ATI video card works perfectly with Linux ?
Thanks a lot to those who helped me.
André