Hi, I have a problem getting my external Samsung 4k monitor working with the proper resolution under Ubuntu GNOME 16.04.
It works fine on Windows. I’m using the 384.47 drivers from the nvidia PPA. The laptop is an ASUS UX560-something. Nvidia 940MX.
This is the Xorg log with a “–mode-debug” option enabled: http://eize.ninja/d/Xorg.0.log.2017.07.25
This Samsung monitor has a DP and two HDMI jacks. HDMI 1 supporting 30Hz and HDMI 2 supporting 60Hz. I connect to HDMI 2 (in Xorg log it’s called HDMI-1-2 if I’m not mistaken).
From what I saw in the logs, the DP seems to recognize the 4k resolution just fine, but both HDMIs are not playing nicely. The laptop only has an HDMI port so I can’t check DP.
I’m not sure what to do, I’m not very familiar with X or nvidia hacking so please bear with me. Trying to find a clue on the net or these forums only suggested updating the drivers, which I already got updated. Still searching.