So I had Ubuntu 12.04, and all was well - except it froze occasionally. Monkeying around with the kernel made no difference, so I asked here (can't find my old question). Someone advised upgrading to 12.10, so I did it but it didn't boot.
All I get is a partial boot and a black screen. I managed to get into the GRUB, and messed about in recovery mode. If I go via recovery mode, I can get to a command line, but it freezes after a couple of minutes. I tried doing sudo apt-get update, tried uninstalling and reinstalling graphics drivers, tried the whole clean/dpkg repair/check file system, not going so well.
I boot off a USB now, which means I get a fresh system each time which sucks, can't boot graphically, and don't really know what I'm doing with the command line. Can anyone help me?
UPDATE AND MORE INFO: I used the boot repair program, it made no difference. It returned http://paste.ubuntu.com/5855376, so there might be some helpful info in there?
My computer is an Acer Aspire 5750, it has an Intel® Core™ i5-2430M CPU @ 2.40GHz × 4, and Intel HD graphics 3000. Not sure which graphics drivers I should be using, but I don't have Nvidia, which I understand was the cause of some similar trouble.
UPDATE THE SECOND: I've narrowed it down a bit more. It seems like an incomplete install of X11, according to my friend who is more knowledgeable about these things. cat /var/log/Xorg.0.log puts out http://paste.ubuntu.com/5861520/, which seems to basically say that it can't load intel, vesa, modesetting or fbdev (also some fonts are missing, but I doubt that's the problem).
I tried adding the x-updates repository and doing apt-get update and apt-get dist-upgrade (with and without -f and -m), but it appears to have made no difference whatsoever. On the advice of , I made /etc/X11/xorg.conf (which was missing before) and put in
Section "Device"
Identifier "intel"
Driver "intel"
Option "AccelMethod" "uxa"
EndSection
but it changed nothing. Not sure what to do now.
