I am having trouble logging out and shutting down normally using the Gnome 3 desktop interface. This is what I was shown on random occasions when I turn on the computer:
The arrows point to where things are not normal. Right clicking the dropdown arrow on the system top bar produces the half-hidden "spanner" instead of the user menu. As for the "cog", it is always visible on top. I have tried looking into
journalctl for warnings, but there isn't any that I could find that is relevant to the desktop.
Also, I didn't do any customization to my desktop. I know how to log out and shut down with linux terminal. I am looking for solutions to the graphical issue. Any ideas?
I found I few lines which may be related to the display (drm is the display rendering manager). But I have seen this even when the display is normal. So, I am not very sure if it is useful:
kernel: fb: conflicting fb hw usage inteldrmfb vs EFI VGA - removing generic driver kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). kernel: [drm] Driver supports precise vblank timestamp query. kernel: [drm] Wrong MCH_SSKPD value: 0x16040307 kernel: [drm] This can cause pipe underruns and display issues. kernel: [drm] Please upgrade your BIOS to fix this. kernel: fbcon: inteldrmfb (fb0) is primary device kernel: i915 0000:00:02.0: fb0: inteldrmfb frame buffer device kernel: [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 kernel: [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off