http://bugzilla.opensuse.org/show_bug.cgi?id=1186365http://bugzilla.opensuse.org/show_bug.cgi?id=1186365#c7
--- Comment #7 from Andrei Borzenkov <arvidjaar(a)gmail.com> ---
(In reply to Fabian Vogt from comment #5)
> Sounds like the display manager (or maybe X itself) selects the wrong VT.
1. If I disable auto-login I get lightdm greeter, I enter my user name and
password and then I get blank screen (while session is completely launched).
2. I installed GNOME/X11 and if I select gnome X11 session in lightdm, I get
normal fully functional GNOME desktop.
3. I still get blank screen if I log out of GNOME and log in into Xfce again.
So it is really Xfce issue and it looks like some OpenGL/HW
acceleration/whatever is missing in Xfce. But I am not familiar with it deep
enough to even start digging. If anyone has any idea where to look ...
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https://bugzilla.suse.com/show_bug.cgi?id=1186365https://bugzilla.suse.com/show_bug.cgi?id=1186365#c6
--- Comment #6 from Andrei Borzenkov <arvidjaar(a)gmail.com> ---
(In reply to Fabian Vogt from comment #5)
> Sounds like the display manager (or maybe X itself) selects the wrong VT.
Any idea why it happens with virgl only?
10:~ # cat /sys/class/drm/card0-Virtual-1/{enabled,status}
enabled
connected
10:~ # lsof /dev/tty7
lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs
Output information may be incomplete.
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
X 1279 root 12u CHR 4,7 0t0 26 /dev/tty7
10:~ # loginctl show-session 1
Id=1
User=1000
Name=bor
Timestamp=Tue 2022-06-21 19:08:57 MSK
TimestampMonotonic=31869120
VTNr=7
Seat=seat0
Display=:0
Remote=no
Service=lightdm-autologin
Desktop=xfce
Scope=session-1.scope
Leader=1284
Audit=1
Type=x11
Class=user
Active=yes
State=active
IdleHint=no
IdleSinceHint=0
IdleSinceHintMonotonic=0
LockedHint=no
10:~ # ps -ef | grep X
root 1279 1267 0 19:08 tty7 00:00:02 /usr/bin/X :0 -seat seat0 -auth
/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
Nothing suspicious in Xorg.log either.
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https://bugzilla.suse.com/show_bug.cgi?id=1186365https://bugzilla.suse.com/show_bug.cgi?id=1186365#c5
Fabian Vogt <fvogt(a)suse.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |fvogt(a)suse.com
--- Comment #5 from Fabian Vogt <fvogt(a)suse.com> ---
Sounds like the display manager (or maybe X itself) selects the wrong VT. Might
also be some race condition with something (getty?) grabbing tty7 before X can
get it.
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https://bugzilla.suse.com/show_bug.cgi?id=1200468
Stefan Dirsch <sndirsch(a)suse.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sndirsch(a)suse.com
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Fabian Vogt <fvogt(a)suse.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |CONFIRMED
CC| |fvogt(a)suse.com
Component|X.Org |Xfce
Assignee|gfx-bugs(a)suse.de |bnc-team-xfce(a)forge.provo.n
| |ovell.com
QA Contact|gfx-bugs(a)suse.de |qa-bugs(a)suse.de
--- Comment #2 from Fabian Vogt <fvogt(a)suse.com> ---
The fdo gitlab is currently down so I couldn't read the discussion there.
Some debugging led me to
https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/369, which again links to
the (unavailable) libX11 MR discussion.
xfsettingsd calls XInternAtoms from an invalid context leading to a deadlock.
This happens while a grab is held, so the X server refuses new connections.
Reassigning to Xfce.
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