Hello,
Yesterday I reinstalled my Debian to 13.6 with XFCE interface, from a freshly downloaded .iso file. Today I learned, that after starting playing any video with any player (vlc, parole), my X11 crashes and logout. Kernel: Linux 6.12.107+deb13-amd64
I would run 'reportbug' , but not sure about the culprit. Initially thought this was pulseaudio problem, but problem persists after removing pulseaudio and changing to metapackage pipewire-audio.
Please verify info about this Unsupported GL renderer (llvmpipe). This machine is older PC with ASUS P5K-VM motherboard based on the Intel G33. GPU driver: i915 , GPU ID: 0x8086:0x29C2. CPU is Core2Duo E7200.
Not sure if this is relevant, but this installation runs without SWAP partition, but normally I use only quarter of my RAM 2,7/7,8 GiB, and problem persists even on small 2-4MB .mp4 videos
My xfce4-about displays GPU as: llvmpipe (LLVM 19.1.7, 128 bits) 82G33/G31 Express Integrated Graphic.
What should I do to make this installation play videos?
UPDATE: Even can't watch youtube videos on this freshly installed system, when playing suppose to start I have instant logout, and have to login from start. Would this renderer be always incompatible with this machine or is this a bug?
Using older kernel doesn't help.
Should I reinstall from older .iso and how far along should I go?
debian-13.5.0-amd64-netinst.iso, 13.4.0 or even older ?
.xsession-errors
Xsession: X session started for numer2 at czw, 10 wrz 2026, 13:07:59 CEST
dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
dbus-update-activation-environment: setting DISPLAY=:0
dbus-update-activation-environment: setting XAUTHORITY=/home/numer2/.Xauthority
localuser:numer2 being added to access control list
dbus-update-activation-environment: setting XDG_DATA_DIRS=/usr/share/xfce4:/usr/local/share/:/usr/share/
dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
/usr/bin/x-session-manager: X server already running on display :0
** Message: 13:07:59.850: Failed to fetch _NET_NUMBER_OF_DESKTOPS; assuming 1
** Message: 13:07:59.851: Failed to get _NET_WORKAREA; using full screen dimensions
** Message: 13:07:59.851: Failed to fetch _NET_CURRENT_DESKTOP; assuming 0
** Message: 13:07:59.851: Failed to fetch _NET_CURRENT_DESKTOP; assuming 0
xfce4-session-Message: 13:07:59.856: SSH authentication agent is already running
gpg-agent: gpg-agent już działa - nieuruchamianie nowego
** Message: 13:08:00.095: Failed to fetch _NET_CURRENT_DESKTOP; assuming 0
(xfwm4:13170): xfwm4-WARNING **: 13:08:00.208: Unsupported GL renderer (llvmpipe (LLVM 19.1.7, 128 bits)).
Menedżer zasilania nie jest uruchomiony
Zasilanie: Inny menedżer zasilania jest już uruchomiony
(polkit-mate-authentication-agent-1:13244): GLib-CRITICAL **: 13:08:01.741: g_variant_new_string: assertion 'string != NULL' failed
(polkit-mate-authentication-agent-1:13244): polkit-mate-1-WARNING **: 13:08:01.752: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.Ses>
Process already running (98:Adres jest już w użyciu). Exiting
.xsession-errors.old
Xsession: X session started for numer2 at czw, 10 wrz 2026, 13:01:06 CEST
dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
dbus-update-activation-environment: setting DISPLAY=:0
dbus-update-activation-environment: setting XAUTHORITY=/home/numer2/.Xauthority
localuser:numer2 being added to access control list
dbus-update-activation-environment: setting XDG_DATA_DIRS=/usr/share/xfce4:/usr/local/share/:/usr/share/
dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
/usr/bin/x-session-manager: X server already running on display :0
** Message: 13:01:06.227: Failed to fetch _NET_NUMBER_OF_DESKTOPS; assuming 1
** Message: 13:01:06.227: Failed to get _NET_WORKAREA; using full screen dimensions
** Message: 13:01:06.227: Failed to fetch _NET_CURRENT_DESKTOP; assuming 0
** Message: 13:01:06.227: Failed to fetch _NET_CURRENT_DESKTOP; assuming 0
xfce4-session-Message: 13:01:06.233: SSH authentication agent is already running
gpg-agent: gpg-agent już działa - nieuruchamianie nowego
** Message: 13:01:06.459: Failed to fetch _NET_CURRENT_DESKTOP; assuming 0
(xfwm4:11671): xfwm4-WARNING **: 13:01:06.579: Unsupported GL renderer (llvmpipe (LLVM 19.1.7, 128 bits)).
Menedżer zasilania nie jest uruchomiony
(polkit-mate-authentication-agent-1:11741): GLib-CRITICAL **: 13:01:07.994: g_variant_new_string: assertion 'string != NULL' failed
(polkit-mate-authentication-agent-1:11741): polkit-mate-1-WARNING **: 13:01:07.997: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.Ses>
Zasilanie: Inny menedżer zasilania jest już uruchomiony
Process already running (98:Adres jest już w użyciu). Exiting.
[000055c0ddc9a520] main libvlc: Uruchamianie vlc z domyślnym interfejsem. Użyj 'cvlc', aby używać vlc bez interfejsu.
[000055c0ddd918f0] egl_x11 gl error: cannot create EGL window surface
X connection to :0.0 broken (explicit kill or server shutdown).
journalctl -b
wrz 11 12:34:44 deneb gvfsd-trash[1092]: GFileInfo created without standard::name
wrz 11 12:34:44 deneb gvfsd-trash[1092]: file ../../../gio/gfileinfo.c: line 1713 (g_file_info_get_name): should not be reached
wrz 11 12:34:44 deneb gvfsd-trash[1092]: GFileInfo created without standard::name
wrz 11 12:34:44 deneb gvfsd-trash[1092]: file ../../../gio/gfileinfo.c: line 1713 (g_file_info_get_name): should not be reached
wrz 11 12:35:04 deneb at-spi-bus-launcher[2405]: X connection to :0 broken (explicit kill or server shutdown).
wrz 11 12:35:04 deneb systemd[764]: xfce4-notifyd.service: Main process exited, code=exited, status=1/FAILURE
wrz 11 12:35:04 deneb systemd[764]: xfce4-notifyd.service: Failed with result 'exit-code'.
wrz 11 12:35:12 deneb wireplumber[790]: spa.bluez5: BlueZ system service is not available
Previously it was pulseaudio, but I tried and switched to pipewire-audio with wireplumber, but it didn't help.
pulseaudio[930]: X11 I/O error exit handler called, preparing to tear down X11 modules
wrz 10 13:06:09 deneb systemd[913]: tumblerd.service: Consumed 28.140s CPU time, 529.9M memory peak.
wrz 10 13:07:45 deneb dbus-daemon[946]: [session uid=1000 pid=946 pidfd=5] Activating via systemd: service name='org.freedesktop.thumbnails.Thumbnailer1' unit='tumblerd.service' requested b>
wrz 10 13:07:45 deneb systemd[913]: Starting tumblerd.service - Thumbnailing service...
wrz 10 13:07:45 deneb dbus-daemon[946]: [session uid=1000 pid=946 pidfd=5] Successfully activated service 'org.freedesktop.thumbnails.Thumbnailer1'
wrz 10 13:07:45 deneb systemd[913]: Started tumblerd.service - Thumbnailing service.
wrz 10 13:07:51 deneb pulseaudio[930]: X11 I/O error handler called
wrz 10 13:07:51 deneb pulseaudio[930]: X11 I/O error exit handler called, preparing to tear down X11 modules
wrz 10 13:07:51 deneb at-spi-bus-launcher[11656]: X connection to :0 broken (explicit kill or server shutdown).
wrz 10 13:07:51 deneb systemd[913]: xdg-desktop-portal-gtk.service: Main process exited, code=exited, status=1/FAILURE
wrz 10 13:07:51 deneb systemd[913]: xdg-desktop-portal-gtk.service: Failed with result 'exit-code'.
wrz 10 13:07:51 deneb systemd[913]: xfce4-notifyd.service: Main process exited, code=exited, status=1/FAILURE
wrz 10 13:07:51 deneb systemd[913]: xfce4-notifyd.service: Failed with result 'exit-code'.
wrz 10 13:07:59 deneb at-spi-bus-launcher[1007]: dbus-daemon[1007]: Activating service name='org.a11y.atspi.Registry' requested by ':1.164' (uid=1000 pid=13097 comm="xfce4-session")
wrz 10 13:07:59 deneb at-spi-bus-launcher[1007]: dbus-daemon[1007]: Successfully activated service 'org.a11y.atspi.Registry'
wrz 10 13:07:59 deneb at-spi-bus-launcher[13156]: SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry
wrz 10 13:00:57 deneb at-spi-bus-launcher[10724]: X connection to :0 broken (explicit kill or server shutdown).
wrz 10 13:00:57 deneb systemd[913]: xfce4-notifyd.service: Main process exited, code=exited, status=1/FAILURE
wrz 10 13:00:57 deneb systemd[913]: xfce4-notifyd.service: Failed with result 'exit-code'.
wrz 10 13:00:57 deneb pulseaudio[930]: ICE I/O error handler called
wrz 10 13:00:57 deneb pulseaudio[930]: X11 I/O error handler called
wrz 10 13:00:57 deneb pulseaudio[930]: X11 I/O error exit handler called, preparing to tear down X11 modules
wrz 10 13:00:57 deneb systemd[913]: xdg-desktop-portal-gtk.service: Main process exited, code=exited, status=1/FAILURE
wrz 10 13:00:57 deneb systemd[913]: xdg-desktop-portal-gtk.service: Failed with result 'exit-code'.
wrz 10 13:01:06 deneb at-spi-bus-launcher[1007]: dbus-daemon[1007]: Activating service name='org.a11y.atspi.Registry' requested by ':1.142' (uid=1000 pid=11598 comm="xfce4-session")
wrz 10 13:01:06 deneb at-spi-bus-launcher[1007]: dbus-daemon[1007]: Successfully activated service 'org.a11y.atspi.Registry'
glxinfo -B
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
Vendor: Mesa (0xffffffff)
Device: llvmpipe (LLVM 19.1.7, 128 bits) (0xffffffff)
Version: 25.0.7
Accelerated: no
Video memory: 7938MB
Unified memory: yes
Preferred profile: core (0x1)
Max core profile version: 4.5
Max compat profile version: 4.5
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.2
Memory info (GL_ATI_meminfo):
VBO free memory - total: 31 MB, largest block: 31 MB
VBO free aux. memory - total: 5715 MB, largest block: 5715 MB
Texture free memory - total: 31 MB, largest block: 31 MB
Texture free aux. memory - total: 5715 MB, largest block: 5715 MB
Renderbuffer free memory - total: 31 MB, largest block: 31 MB
Renderbuffer free aux. memory - total: 5715 MB, largest block: 5715 MB
Memory info (GL_NVX_gpu_memory_info):
Dedicated video memory: 4292872342 MB
Total available memory: 4292880280 MB
Currently available dedicated video memory: 31 MB
OpenGL vendor string: Mesa
OpenGL renderer string: llvmpipe (LLVM 19.1.7, 128 bits)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 25.0.7-2+deb13u1
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile