Ubuntu
mesa package

  1. Bug #1753776
  2. Comment #24

Comment 24 for bug 1753776

Revision history for this message
Daniel van Vugt (vanvugt) wrote : Re: Graphics corruption (or distortion?) in login animation to Xorg sessions

OK, this seems to be a Xorg bug in the "-background none" feature. Upstream bug reported here:
https://bugs.freedesktop.org/show_bug.cgi?id=105518

Less likely but still possible is that mutter (used on the login screen) is corrupting the framebuffer and "Xorg -background none" is then innocently copying the corruption.

A workaround (which at least will avoid more bug reports from users) is to remove these two lines from gdm3:

        g_ptr_array_add (arguments, "-background");
        g_ptr_array_add (arguments, "none");

That will reliably replace the corruption with blackness.

Have a nice day.