On Mon, May 07, 2018 at 10:13:25AM +0000, Stefan Hübner via users wrote: > No, the display is not blank. The login screen is displayed. It's enough to > hover over the top right login menu to crash it. > > I have no issues, when the laptop is used without external monitors. I can > live with that for a bit, but hope for help to get my developer environment > back working. > > > Mai 04 11:00:15 4delsthubner02 gnome-shell[2601]: Failed to allocate > > texture: Failed to create texture 2d due to size/format constraints > > Mai 04 11:00:15 4delsthubner02 kernel: gnome-shell[2601]: segfault at > > 20001 ip 00007f4361c30002 sp 00007ffd812313e0 error 4 in > > libglib-2.0.so.0.5600.1[7f4361bc6000+115000] > > Mai 04 11:00:15 4delsthubner02 audit[2601]: ANOM_ABEND auid=4294967295 > > uid=42 gid=42 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 > > pid=2601 comm="gnome-shell" exe="/usr/bin/gnome-shell" sig=11 res=1 > > Mai 04 11:00:15 4delsthubner02 gnome-shell[2601]: cogl_object_ref: > > assertion 'object != ((void *)0)' failed > > Mai 04 11:00:15 4delsthubner02 gnome-shell[2601]: > > clutter_texture_set_cogl_texture: assertion 'cogl_is_texture (cogl_tex)' > > failed > > Mai 04 11:00:15 4delsthubner02 gnome-shell[2601]: CoglError set over the > > top of a previous CoglError or uninitialized memory. > > This indicates a bug in > > someone's code. You must ensure an error is NULL before it's set. As the message says: an indication of a bug. See the Debian bug report on a similar issue (Redhat bugzilla seems down) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=893488 I have a long-standing bug for my display port connection to an external TV-monitor: the external GPU is a Radeon one, and I workaround the issue with an HDMI connection to that same monitor. If it helps: the cached version of the bug report on Google. The workaround in comment 15: https://webcache.googleusercontent.com/search?q=cache:KftSjwGHfGIJ:https://bugzilla.redhat.com/show_bug.cgi%3Fid%3D1470845+&cd=1&hl=en&ct=clnk&gl=de&client=firefox-b-ab To make it work you need an X session instead of a wayland one, so you can use xrandr. HTH (Sorry for my system if it messed up the umlauts in your name) Wolfgang > > The overwriting error > > message was: Sliced texture size of 16 x 16 not possible with max waste set > > to -1 _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx