works, even for 75 hz. However, when I go to the screenconfigurationwindow, the drop down box has the refresh rate set standard to 50 Hz and I can chose to set it, maximally, on 56 Hz.
Is there anyway to check the current refreshrate?
Lots of thanks for the help & log file updated.
*update: already found how to see it: nvidia-settings -q RefreshRate It was in the third logs, but never in the second or first! It probably tried to load 76 Hz. Thanks!