*** This bug is a duplicate of bug 969489 ***
https://bugs.launchpad.net/bugs/969489
This bug hit me after an upgrade from 14.04 to 16.04.1. Strangely I was
not affected earlier. Maybe a reinstall might fix this issue? Two out of
three reboots lead to failsafe X. Sleep command improved the situation
but still 50%...
Other solutions like restart in rc.local somehow did not work. Maybe
systemd is ignoring it or it is executed way to early. Sleep in
/etc/init/lightdm.conf improved the situation but did not fix it.
$ lspci -nnvv
00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Generation Core
Processor Family Integrated Graphics Controller [8086:041e] (rev 06) (prog-if
00 [VGA controller])
DeviceName: Onboard IGD
Subsystem: ASUSTeK Computer Inc. 4th Generation Core Processor Family
Integrated Graphics Controller [1043:8534]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 44
Region 0: Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0100c Data: 41e1
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a4] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: i915
Kernel modules: i915
CPU: Intel(R) Core(TM) i3-4160 CPU @ 3.60GHz
Symptoms:
/var/log/Xorg.0.log
[ 67.571] (EE) intel(0): [drm] failed to set drm interface version:
Permission denied [13].
[ 67.571] (II) intel(0): [drm] Contents of '/sys/kernel/debug/dri/0/clients':
[ 67.571] (II) intel(0): [drm] a dev pid uid magic ioctls
[ 67.571] (II) intel(0): [drm]
[ 67.571] (II) intel(0): [drm] y 0 2571 0 0 2004
[ 67.571] (II) intel(0): [drm] y 0 179 0 0 20
[ 67.571] (II) intel(0): [drm] y 0 179 0 0 19
[ 67.571] (II) intel(0): [drm] y 0 179 0 0 19
[ 67.571] (II) intel(0): [drm] y 0 179 0 0 116
[ 67.571] (EE) intel(0): Failed to claim DRM device.
## xdiagnose process running after start
root 3073 0.0 0.0 7008 1560 ? S 10:16 0:00 /bin/bash
/usr/share/xdiagnose/failsafeXinit /etc/X11/xorg.conf.failsafe
##
root 2986 0.0 0.0 7108 1544 ? Ss 10:16 0:00 /bin/bash
/usr/share/xdiagnose/failsafeXServer
root 3001 0.0 0.0 3748 656 ? S 10:16 0:00 xinit
/usr/share/xdiagnose/failsafeXinit /etc/X11/xorg.conf.failsafe -- /usr/bin/X
-br -once -config /etc/X11/xorg.conf.failsafe -logfile
/var/log/Xorg.failsafe.log
root 3002 0.0 0.6 187192 25856 tty2 S<sl+ 10:16 0:00
/usr/lib/xorg/Xorg :0 -br -once -config /etc/X11/xorg.conf.failsafe -logfile
/var/log/Xorg.failsafe.log
root 3073 0.0 0.0 7008 1560 ? S 10:16 0:00 /bin/bash
/usr/share/xdiagnose/failsafeXinit /etc/X11/xorg.conf.failsafe
gdm3 currently only comes up with a black screen and a mouse cursor and no
error in the logs...
sddm is working fine but the lockscreen locks the terminal permanently, only
killing the process on tty1 unlocked it.
Current workaround:
$ cat /etc/systemd/system/lightdmrestart.service
[Unit]
Description=Restart lightdm
After=graphical.target
Wants=lightdm.service accounts-daemon.service
[Service]
Type=oneshot
ExecStart=/usr/local/sbin/restartlightdm.sh
[Install]
WantedBy=default.target
$ cat/usr/local/sbin/restartlightdm.sh
#!/bin/bash
sleep 2
CHECK=$(ps axu | grep "/bin/bash /usr/share/xdiagnose/failsafe[X]init
/etc/X11/xorg.conf.failsafe")
if [ ! -z "$CHECK" ]; then
ps axu | grep "/bin/bash /usr/share/xdiagnose/failsafe[X]init
/etc/X11/xorg.conf.failsafe" | awk '{print $2}' | xargs kill
sleep 2
systemctl restart lightdm
else
exit 0
fi
systemctl enable lightdmrestart
systemctl reboot
Currently working without an issue. Hope it helps if someone else is
still affected and needs a quick fix.
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https://bugs.launchpad.net/bugs/1070150
Title:
Intermittent black screen or low graphics mode message
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