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I'm on debian unstable and after a dist-upgrade I have a problem with some programs.
For example if I start gimp, system gets me out of the session and show me login form of lightdm
It also happens when I use firefox and I try to open a thread on twitter.
I can't understand what the problem is
I looked at /var/log/syslog an this is the result:
-----------------------------
Sep 20 16:15:05 robpc at-spi-bus-launcher[15635]: X connection to :0 broken (explicit kill or server shutdown).
Sep 20 16:15:05 robpc systemd[1675]: xdg-desktop-portal-gtk.service: Main process exited, code=exited, status=1/FAILURE
Sep 20 16:15:05 robpc systemd[1675]: xdg-desktop-portal-gtk.service: Failed with result 'exit-code'.
Sep 20 16:15:06 robpc systemd[1]: Created slice User Slice of UID 118.
Sep 20 16:15:06 robpc systemd[1]: Starting User Runtime Directory /run/user/118...
Sep 20 16:15:06 robpc systemd[1]: Finished User Runtime Directory /run/user/118.
Sep 20 16:15:06 robpc systemd[1]: Starting User Manager for UID 118...
Sep 20 16:15:07 robpc systemd-xdg-autostart-generator[17720]: Exec binary 'orca' does not exist: No such file or directory
Sep 20 16:15:07 robpc systemd-xdg-autostart-generator[17720]: /etc/xdg/autostart/orca-autostart.desktop: not generating unit, error parsing Exec= line: No such file or directory
Sep 20 16:15:07 robpc systemd[17706]: Queued start job for default target Main User Target.
Sep 20 16:15:07 robpc systemd[17706]: Created slice User Application Slice.
Sep 20 16:15:07 robpc systemd[17706]: Reached target Paths.
Sep 20 16:15:07 robpc systemd[17706]: Reached target Timers.
Sep 20 16:15:07 robpc systemd[17706]: Starting D-Bus User Message Bus Socket...
Sep 20 16:15:07 robpc systemd[17706]: Listening on GnuPG network certificate management daemon.
Sep 20 16:15:07 robpc systemd[17706]: Listening on GCR ssh-agent wrapper.
Sep 20 16:15:07 robpc systemd[17706]: Listening on GNOME Keyring daemon.
Sep 20 16:15:07 robpc systemd[17706]: Listening on GnuPG cryptographic agent and passphrase cache (access for web browsers).
Sep 20 16:15:07 robpc systemd[17706]: Listening on GnuPG cryptographic agent and passphrase cache (restricted).
Sep 20 16:15:07 robpc systemd[17706]: Listening on GnuPG cryptographic agent (ssh-agent emulation).
Sep 20 16:15:07 robpc systemd[17706]: Listening on GnuPG cryptographic agent and passphrase cache.
Sep 20 16:15:07 robpc systemd[17706]: Listening on debconf communication socket.
Sep 20 16:15:07 robpc systemd[17706]: Listening on D-Bus User Message Bus Socket.
Sep 20 16:15:07 robpc systemd[17706]: Reached target Sockets.
Sep 20 16:15:07 robpc systemd[17706]: Reached target Basic System.
Sep 20 16:15:07 robpc systemd[17706]: Reached target Main User Target.
Sep 20 16:15:07 robpc systemd[17706]: Startup finished in 134ms.
Sep 20 16:15:07 robpc systemd[1]: Started User Manager for UID 118.
Sep 20 16:15:07 robpc systemd[1]: Started Session c4 of User lightdm.
Sep 20 16:15:07 robpc systemd[17706]: Created slice User Core Session Slice.
Sep 20 16:15:07 robpc systemd[17706]: Starting D-Bus User Message Bus...
Sep 20 16:15:07 robpc systemd[17706]: Started D-Bus User Message Bus.
Sep 20 16:15:07 robpc dbus-daemon[17725]: [session uid=118 pid=17725] Activating systemd to hand-off: service name='org.a11y.Bus' unit='at-spi-dbus-bus.service' requested by ':1.0' (uid=118 pid=17722 comm="/usr/sbin/lightdm-gtk-greeter")
Sep 20 16:15:07 robpc dbus-daemon[17725]: [session uid=118 pid=17725] Successfully activated service 'org.freedesktop.systemd1'
Sep 20 16:15:07 robpc systemd[17706]: Starting Accessibility services bus...
Sep 20 16:15:07 robpc dbus-daemon[17725]: [session uid=118 pid=17725] Successfully activated service 'org.a11y.Bus'
Sep 20 16:15:07 robpc systemd[17706]: Started Accessibility services bus.
Sep 20 16:15:07 robpc dbus-daemon[17725]: [session uid=118 pid=17725] Activating via systemd: service name='org.gtk.vfs.Daemon' unit='gvfs-daemon.service' requested by ':1.3' (uid=118 pid=17722 comm="/usr/sbin/lightdm-gtk-greeter")
Sep 20 16:15:07 robpc systemd[17706]: Starting Virtual filesystem service...
Sep 20 16:15:07 robpc dbus-daemon[17725]: [session uid=118 pid=17725] Successfully activated service 'org.gtk.vfs.Daemon'
Sep 20 16:15:07 robpc systemd[17706]: Started Virtual filesystem service.
Sep 20 16:15:07 robpc at-spi-bus-launcher[17732]: dbus-daemon[17732]: Activating service name='org.a11y.atspi.Registry' requested by ':1.0' (uid=118 pid=17722 comm="/usr/sbin/lightdm-gtk-greeter")
Sep 20 16:15:07 robpc at-spi-bus-launcher[17732]: dbus-daemon[17732]: Successfully activated service 'org.a11y.atspi.Registry'
Sep 20 16:15:07 robpc at-spi-bus-launcher[17768]: SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry
Sep 20 16:15:12 robpc systemd[1]: Stopping Session c4 of User lightdm...
Sep 20 16:15:12 robpc systemd[1]: session-c4.scope: Deactivated successfully.
Sep 20 16:15:12 robpc systemd[1]: Stopped Session c4 of User lightdm.
Sep 20 16:15:12 robpc systemd[1]: session-c4.scope: Consumed 1.281s CPU time.
Sep 20 16:15:12 robpc systemd[1]: Started Session 41 of User rob.
That's your answer above. Faithfully report your problems to them, and they will sort it. They needd yourt feedback.
I know, you forget the 'unstable' part of Debian unstable. It sounds like something is amiss in one of those horribly complex bits of X and it's deciding you have to log in again
What Intel card have you got?
A number of them now use the crocus driver. Have you tried that?
Give us details on your system. Post the output of 'sudo lspci' and post /var/log/Xorg.0.log on pastebin. You're running an unstable system, and you can probably get back to a stable system with some apt cleverness. Look it up.
What is it now? Debian devs told you to use Intel driver as a workaround, I think it is a good idea. Intel driver even has some 2D acceleration what modesetting driver does not have. But you want us to debug the modesetting issue for you instead? Don't you think Debian developers are better suited for this job?
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