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. bad banana <bad.ban...@outlook.com> schrieb am So., 6. Mai 2018 um 11:16 Uhr: > maybe, like in my case, the external monitor is being used as an extension > of your built-in LCD display? so it appears blank. > > my Cinnamon crashes after i login but thankfully it restarts fine. never > checked further as i switched to KDE Plasma due to some other reasons. > ------------------------------ > *From:* Stefan Hübner via users <users@lists.fedoraproject.org> > *Sent:* Friday, May 4, 2018 1:49 PM > *To:* users@lists.fedoraproject.org > *Cc:* Stefan Hübner > *Subject:* F28: gnome-shell crashes when using external displays > > Hi, > > I upgraded to Fedora 28 two days ago (May 2nd). My laptop usually is > mounted to a docking station with two Dell displays attached. > > Since this morning I cannot start a gnome session anymore. After login the > shell crashes gets back to GDM. In fact it's enough to hover over the top > right drop down menu to crash GDM. > > Also interesting: no fonts are displayed when using external monitors. > > If I restart the machine without external monitors, everything works > flawlessly. > > journalctl reveals the following messages (there's also a core dump, which > I omit for brevity): > > 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. > The overwriting error > message was: Sliced texture size of 16 x 16 not possible with max waste set > to -1 > Mai 04 11:00:15 4delsthubner02 systemd[1]: Started Process Core Dump (PID > 3049/UID 0). > > > What's going on here? > > Best, > Stefan Hübner > >
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