on my thinkpad T400, Ubuntu 12.04 hangs after "Checking battery state" and I have to boot the unity shell using startx in tty1 . My video card is an Intel Gma 4500Mhd. I cannot reinstall Ubuntu (because I have big software installs). It came after an upgrade. Maybe it is a shell problem.
lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
When using the recovery mode root console, Xorg -configure leads to an error:
could not create lock file /tmp/tx0-lock
Can you help please?