Ubuntu 20.04 with nVidia Quadro K5200 Driver 460: screen flicking

Graphics / Linux Linux
1

Hello Guys.

I have a nVidia Quadro K5200.
I have just installed Ubuntu 20.04 LTS.

The computer works fine and recognized dual monitors.

The problems is: the screen gets flicking and shuffle when I do some activities.
When I open a document using Leafpad and scroll the toolbar the lines gets mixed, some lines gets broken image.
The problems is the video driver.
It still occurs when I open PcManFm with many icons.
Using Gimp it occurs very much! (I can’t edit any image).

prints screen: flicking — ImgBB

If I use Gedit instead Lfafpad the flicking does not occurs.

I tried to install Xorg driver instead nVidia 460… but Xorg drivers my computer gets too bad. Trying to play CS:GO is worse, the game gets slow FPS.

Ubuntu 18.04 did not have this issue.

2

Please run nvidia-bug-report.sh as root and attach the resulting nvidia-bug-report.log.gz file to your post.

3

Ok.

Link: http://www.machsuporte.com.br/nvidia-bug-report.log.gz

4

Setup looks fine. This rather looks like a general gtk+ 2 breakage in Ubuntu 20.04. You could check if it works with nouveau and open a bug report at lauchpad bugs.