I am using Ubuntu 14.04, and my Desktop is gone. After I log in, Unity would not start and I am stuck with just a working mouse cursor.
I have a hybrid AMD-Graphic card and I have removed anything related to fglrx (I think) by using Ctrl + Alt + F1.
I re-installled the xserver, ubuntu-desktop, unity. But nothing works.
I installed compizconfig-settings manager and tried to enable the Unity Plugin package,but ccsm won't' load because I get an error saying No protocol Specified . No application which requires a GUI, works because it says it is not able to connect to the Xserver and X11 initialization failed.
I tried dconf reset -f /org/compiz/ but that throws an error saying Error spawning command line 'dbus-launch .
Can someone please help me and get my desktop back ?
EDIT:
I ran
DISPLAY=:0.0 ccsm
I get
compizconfig - Info: Backend : ini
compizconfig - Info: Integration: true
compizconfig - Info: Profile: default
[690.211258] ata1.00: exception Emask 0x0 SAct 0x7fffffff SErr 0x40000 action 0x0
[690.211315] ata1.00: irq_stat 0x400000008
[690.212031] ata1: SError: { CommWake}
[690.212747] ata1.00: failed command: READ FPDMA QUEUED
[690.213444] ata1.00 cmd ____<some address>_________________ tag 8 ncq 4096 in
The error continues, I could not write down everything from the terminal.
In the end there was some Emask media error and I/O error,dev sda, Bus error(dumpped)