Mint 13 MATE MDM crash

[calisto053]

Našao sam bug u MATE-u: MDM mi se neprestano krešira nakon ctrl+alt+backspace. Okrio sam sasvim slučajno.
Klasični login/logout putem GUI-a normalno radi, samo se ovo dogodi svaki put. Nije da me smeta, ali nije ni lijepo....

Svaki put me dočeka poruka:

Failed to start X server (yout graphical interface). It is likely that is not set up correctly. Would you like to view the X server output to diagnose the problem? Yes/No

Ovo je kraći output iz loga:

X.Org X Server 1.11.3
Release Date: 2011-12-16
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-31-server x86_64 Ubuntu
Current Operating System: Linux NoviMint 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=96edc096-b65b-41fa-a461-a4565823fd88 ro quiet splash vt.handoff=7
Build Date: 07 May 2012 11:43:21PM
xorg-server 2:1.11.4-0ubuntu10.2 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.24.4
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 Jun 29 20:05:53 2012
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(WW) fglrx: No matching Device section for instance (BusID PCI:0@1:0:0) found
(WW) fglrx: No matching Device section for instance (BusID PCI:0@0:1:1) found
(EE) fglrx(0): Invalid video BIOS signature!
(EE) fglrx(0): GetBIOSParameter failed
(EE) fglrx(0): PreInitAdapter for slave 0 failed
(EE) fglrx(0): PreInit failed
(EE) Screen(s) found, but none have a usable configuration.

Fatal server error:
no screens found

Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
Please also check the log file at "/var/log/Xorg.0.log" for additional information.

ddxSigGiveUp: Closing log
Server terminated with error (1). Closing log file.

Otvorim direktno konzolu sa ctrl+alt+F1 ili crtl+alt+F7, uredno se logiram i pokušam restartat MDM:

Kod: Označi sve

sudo /etc/init.d/mdm start

Ništa ne pomaže, iako kombiniram opcije stop/start/restart. Pokušavam se prebacit u GUI sa ctrl+alt+F6, ali ni to ne može. U oba slučaja mi se neprestano mi se pojavljuje ova poruka:

The X server is now disabled. Restart MDM when it is configured correctly.

Pomaže jedino reset s crtl+alt+del ili

Kod: Označi sve

sudo reboot -f

Na google-u i Mint forumu ne nalazim rješenje, iako mintavci upućuju da je to izvorno Ubuntu bug, a da se rješava instalacijom LightDM-a. Doduše nisam pokušao restart s "init 5", pa me zanima što vi mislite....
Grafika je AMD Radeon HD 6650M