Graphical artefacts between GDM and GNOME Shell login

[Joachim Backes]

On 03/23/2015 10:40 AM, Michael Schwendt wrote:
> [Disclaimer: I've looked up the spelling of "artefacts", and it's the British
> English spelling I had learned. "artifacts" would be American English.]
>
> After logging in on the GDM screen (not when using auto-login!), before
> GNOME Shell is started small coloured rectangles appear at the bottom
> of the screen. It looks like garbage. As if something writes into
> screen buffer space by accident.
>
> Any idea what that could be?
>
> This may have been like that since F22 Alpha, but I'd switched to
> auto-login very soon where it doesn't happen. F21 and older are not
> affected.
>

Seeing this too, from time to time, in Beta (only 1 colored rectangle, 
size: about 1.5cm x 1.5cm), goes away after login.

-- 

Fedora release 22 (Twenty Two)
Kernel-4.0.0-0.rc4.git2.1.fc22.x86_64


Joachim Backes <joachim.backes at rhrk.uni-kl.de>
https://www-user.rhrk.uni-kl.de/~backes