Hallo zusammen,
Ich weiß, dass das Problem schon öfter aufgetaucht ist. Ich habe in den letzten Tagen alles ausprobiert, was ich zu dem Thema gefunden habe und bin trotzdem nicht weitergekommen. Ich hoffe ihr könnt mir helfen!
Mein System:
Ubuntu 16.04,
lspci | grep -i vga
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00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT] (rev ff)
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Das Problem:
Ich fahre meinen Laptop hoch, grub startet und ich wähle Ubuntu aus. Als nächstes erscheint der Ubuntu Lade-Bildschirm (Schriftzug + Ladebalken). Danach taucht das "The system is running in low-graphics mode"-Fenster auf. Die verschiedenen Optionen kann ich zwar auswählen (mit der Tastatur; Mauszeiger wird nicht angezeigt), aber alle führen ins Leere. Am Ende lande ich immer wieder beim gleichen Fenster.
Mit [ctl]+[alt]+[F1] kann ich tty öffnen.
Damit erhalte ich Zugang zu den log files:
/var/log/lightdm/lightdm.log:
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[+0.09s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.09s] DEBUG: Starting Light Display Manager 1.18.3, UID=0 PID=1205
[+0.09s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.09s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-disable-log-backup.conf
[+0.09s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-greeter-wrapper.conf
[+0.09s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf
[+0.09s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-session-wrapper.conf
[+0.09s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf
[+0.09s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-unity-greeter.conf
[+0.09s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-xserver-command.conf
[+0.09s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.09s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.09s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.09s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.09s] DEBUG: Registered seat module xlocal
[+0.09s] DEBUG: Registered seat module xremote
[+0.09s] DEBUG: Registered seat module unity
[+0.09s] DEBUG: Monitoring logind for seats
[+0.09s] DEBUG: New seat added from logind: seat0
[+0.09s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.09s] DEBUG: Seat seat0: Starting
[+0.09s] DEBUG: Seat seat0: Creating greeter session
[+0.24s] DEBUG: Seat seat0: Creating display server of type x
[+0.26s] DEBUG: Quitting Plymouth
[+0.28s] DEBUG: Using VT 7
[+0.28s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.28s] DEBUG: DisplayServer x-0: Logging to /var/log/lightdm/x-0.log
[+0.28s] DEBUG: DisplayServer x-0: Writing X server authority to /var/run/lightdm/root/:0
[+0.28s] DEBUG: DisplayServer x-0: Launching X Server
[+0.28s] DEBUG: Launching process 1215: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.28s] DEBUG: DisplayServer x-0: Waiting for ready signal from X server :0
[+0.28s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.28s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.50s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.50s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+6.21s] DEBUG: Got signal 10 from process 1215
[+6.21s] DEBUG: DisplayServer x-0: Got signal from X server :0
[+6.21s] DEBUG: DisplayServer x-0: Connecting to XServer :0
[+6.21s] DEBUG: Seat seat0: Display server ready, starting session authentication
[+6.21s] DEBUG: Session pid=1278: Started with service 'lightdm-greeter', username 'lightdm'
[+6.21s] DEBUG: Greeter closed communication channel
[+6.21s] DEBUG: Session pid=1278: Exited with return value 1
[+6.21s] DEBUG: Session: Failed during authentication
[+6.21s] DEBUG: Seat seat0: Stopping session that failed authentication
[+6.21s] DEBUG: Seat seat0: Session stopped
[+6.21s] DEBUG: Seat seat0: Stopping; failed to start a greeter
[+6.21s] DEBUG: Seat seat0: Stopping
[+6.21s] DEBUG: Seat seat0: Stopping display server
[+6.21s] DEBUG: Sending signal 15 to process 1215
[+6.50s] DEBUG: Process 1215 exited with return value 0
[+6.50s] DEBUG: DisplayServer x-0: X server stopped
[+6.50s] DEBUG: Releasing VT 7
[+6.50s] DEBUG: DisplayServer x-0: Removing X server authority /var/run/lightdm/root/:0
[+6.50s] DEBUG: Seat seat0: Display server stopped
[+6.50s] DEBUG: Seat seat0: Stopped
[+6.50s] DEBUG: Required seat has stopped
[+6.50s] DEBUG: Stopping display manager
[+6.50s] DEBUG: Display manager stopped
[+6.50s] DEBUG: Stopping daemon
[+6.50s] DEBUG: Exiting with return value 1
/var/log/x-0.log:
X.Org X Server 1.18.4
Release Date: 2016-07-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-45-generic x86_64 Ubuntu
Current Operating System: Linux FabisLaptop 4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6 17:47:47 UTC 2017 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-59-generic root=UUID=cbeafd2d-ead6-4060-a2ae-caca82c11c76 ro quiet splash vt.handoff=7
Build Date: 02 November 2016 10:06:10PM
xorg-server 2:1.18.4-0ubuntu0.2 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.33.6
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Fri Jan 27 14:22:26 2017
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning: Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
> Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
(II) Server terminated successfully (0). Closing log file.
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/var/log/Xorg.0.log:
Das file ist ziemlich lang, deshalb lasse ich es erst mal weg. Ich kann ohnehin keine dramatischen Fehlermeldungen entdecken. Am Ende der Datei steht der gleiche Text wie in der vorherigen:
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[ 40.876] (II) Server terminated successfully (0). Closing log file.
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Scheinbar versucht lightdm eine session zu starten, welche direkt wieder abbricht.
Eine Datei ~/.Xsession-errors gibt es nicht.
Die Konfiguration:
in /usr/share/lightdm/lightdm.conf.d liegen mehrere Dateien, die je nur ein Argument enthalten. Zusammengefasst sind das:
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greeter-wrapper=/usr/lib/lightdm/lightdm-greeter-session
guest-wrapper=/usr/lib/lightdm/lightdm-guest-session
session-wrapper=/usr/sbin/lightdm-session
user-session=ubuntu
greeter-session=unity-greeter
xserver-command=X -core
backup-logs=false
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xorg.conf:
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Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/X11/misc"
FontPath "/usr/share/fonts/X11/cyrillic"
FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
FontPath "/usr/share/fonts/X11/75dpi/:unscaled"
FontPath "/usr/share/fonts/X11/Type1"
FontPath "/usr/share/fonts/X11/100dpi"
FontPath "/usr/share/fonts/X11/75dpi"
FontPath "built-ins"
EndSection
Section "Module"
Load "glx"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5 6 7"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Device"
### Available Driver options are:-
### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
### <string>: "String", <freq>: "<f> Hz/kHz/MHz",
### <percent>: "<f>%"
### [arg]: arg optional
#Option "Accel" # [<bool>]
#Option "AccelMethod" # <str>
#Option "Backlight" # <str>
#Option "CustomEDID" # <str>
#Option "DRI" # <str>
#Option "Present" # [<bool>]
#Option "ColorKey" # <i>
#Option "VideoKey" # <i>
#Option "Tiling" # [<bool>]
#Option "LinearFramebuffer" # [<bool>]
#Option "HWRotation" # [<bool>]
#Option "VSync" # [<bool>]
#Option "PageFlip" # [<bool>]
#Option "SwapbuffersWait" # [<bool>]
#Option "TripleBuffer" # [<bool>]
#Option "XvPreferOverlay" # [<bool>]
#Option "HotPlug" # [<bool>]
#Option "ReprobeOutputs" # [<bool>]
#Option "XvMC" # [<bool>]
#Option "ZaphodHeads" # <str>
#Option "VirtualHeads" # <i>
#Option "TearFree" # [<bool>]
#Option "PerCrtcPixmaps" # [<bool>]
#Option "FallbackDebug" # [<bool>]
#Option "DebugFlushBatches" # [<bool>]
#Option "DebugFlushCaches" # [<bool>]
#Option "DebugWait" # [<bool>]
#Option "BufferCache" # [<bool>]
Identifier "Card0"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Section "Device"
### Available Driver options are:-
### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
### <string>: "String", <freq>: "<f> Hz/kHz/MHz",
### <percent>: "<f>%"
### [arg]: arg optional
#Option "Accel" # [<bool>]
#Option "SWcursor" # [<bool>]
#Option "EnablePageFlip" # [<bool>]
#Option "ColorTiling" # [<bool>]
#Option "ColorTiling2D" # [<bool>]
#Option "RenderAccel" # [<bool>]
#Option "SubPixelOrder" # [<str>]
#Option "AccelMethod" # <str>
#Option "ShadowPrimary" # [<bool>]
#Option "EXAVSync" # [<bool>]
#Option "EXAPixmaps" # [<bool>]
#Option "ZaphodHeads" # <str>
#Option "SwapbuffersWait" # [<bool>]
#Option "DeleteUnusedDP12Displays" # [<bool>]
#Option "DRI3" # [<bool>]
#Option "DRI" # <i>
#Option "TearFree" # [<bool>]
Identifier "Card1"
Driver "radeon"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 4
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 8
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 15
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Card1"
Monitor "Monitor1"
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 4
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 8
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 15
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
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Was ich bisher probiert habe:
Die Liste ist unvollständig und ich habe das natürlich nicht alles auf einmal ausprobiert. Dazwischen lagen unzählige reboots.
- Zugriffsrechte und Besitzer von .Xauthority und .ICEauthority anpassen: 664 und user:user
- reconfigure lightdm
[code] dpgk-reconfigure lightdm
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- einen anderen greeter ausprobieren
- ati Treiber deinstalliereun und raden Treiber neu installieren
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apt-get install xserver-xorg-video-radeon
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- verschiedene Dateien löschen
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rm -r ~/.config (e.g. moved to backup)
rm ~/.xsession-errors
rm ~/.*authority
rm /etc/X11/xorg.conf
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- Pakete neu installieren: ubuntu-desktop execstack dh-modaliases debhelper
- Besitzer einstellen von:
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chown lightdm:lightdm -R /var/lib/lightdm
chown avahi-autoipd:avahi-autoipd -R /var/lib/avahi-autoipd
chown colord:colord -R /var/lib/colord
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- Booten mit Option "xforcevasa"
- gdm3 anstelle von lightdm ausprobieren
- Speicherplatz überprüfen: 31Gb frei auf /
Folgendes funktioniert. mehr oder weniger....
In tty gebe ich ein:
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sudo startx
sudo dconf reset -f /org/compiz
sudo gsettings reset-recursively org.compiz
sudo setsid unity
sudo unity --reset-icons
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Damit erhalte ich eine Unity Oberfläche inkl. Launcher auf der linken Seite. Was noch fehlt sind die Icons in der rechten oberen Ecke (Herunterfahren, WLan, etc.).
Außerdem bin ich jetzt als root ingeloggt. Das liegt vielleicht daran, dass ich "setsid unity" mit sudo aufrufe..?
Weiterhin kann ich ccsm aufrufen und sicherstellen, dass "ubuntu Unity Plugin" aktiviert ist.
Kann mir jemand helfen das wieder zum Laufen zu bringen?