Hello,

I have an Intel Skull NUC, model NUC6i7KYK, with Intel video adapter

00:02.0 VGA compatible controller: Intel Corporation Iris Pro Graphics 580 (rev 09)

detailed specs here:

It is connected to a Dell U2515H:

It was initially installed with F29 (with Wayland disabled in /etc/gdm/custom.conf) and used resolution always being 2560x1440.

Almost when F30 was released I upgraded and no problems until today.

When powering on I see no user icons in gdm.

So I switched to sddm and lxdm and there I was able to see my users login, but both trying Gnome session and Mate session it seems I don't see the top bars.

While in Mate with Alt+F2 I opened a terminal window and executed xdpyinfo.

Strangely it reported a not possible resolution....

screen #0:
  dimensions:    5120x1440 pixels (1354x381 millimeters)
  resolution:    96x96 dots per inch
  depths (7):    24, 1, 4, 8, 15, 16, 32
  root window id:    0x162
  depth of root window:    24 planes

So I decided to force 2560x1440 with this file, named 00-monitor.conf and put into directory /etc/X11/xorg.conf.d

After reboot still gdm is not able to show me any user icons (perhaps it doesn't use the conf file), and again using lxdm and sddm and choosing Gnome session I don't see top bar and other things.

Instead, i can use without any problem Mate and now I can see the top bar and correctly use the session.

Opening xdpyinfo from a terminal I correctly get what forced:

screen #0:
  dimensions:    2560x1440 pixels (677x381 millimeters)
  resolution:    96x96 dots per inch
  depths (7):    24, 1, 4, 8, 15, 16, 32
  root window id:    0x162
  depth of root window:    24 planes

Things above let me think about a problem in Gnome itself, impacting gdm too..

Yesterday evening while connected I updated as from this log, without rebooting:

And I think this update generated the problem, because this evening after booting I had it.

I tried to switch to a terminal and update again and I got these packages' updates:

and reboot but still the problem is here...

Anyone experimented this?

Thanks

Gianluca