Last night, I updated from Ubuntu 12.04 to 12.10. This morning, I logged in to my computer, only to get a black screen. I am able to access the shell by pressing the
escape key while the Ubuntu logo shows, but I cannot use any desktop environments (gnome, Unity, et al.)
I received an error about there being no screens in xorg- I uninstalled xorg (a stupid idea?) and attempted to reinstall it, only to find that the current xorg package is broken.
One thing that may be helpful- when I hit CTRL+ALT+F7, my startup programs run, suggesting that the only thing really wrong is my desktop. I run BOINC (which heats my computer up significantly), and I can physically tell it is running.
I have backups of all my files, but I have spent a lot of time and energy getting everything the way I want.
Thanks to anyone who can help- I have spent (wasted) about 4 hours trying to fix this. It could be there is a simple solution to this, but I can't find it. Pardon my ignorance.
I am running a 64-bit Lenovo Thinkpad x230. According to
lspci -nn | grep VGA
I have a Intel Corporation 3rd Gen Core processor Graphics Controller. I am able to get tty sessions 1-7, but just can't make Unity (or any other graphical interface) work.
I gave up trying to fix this and reinstalled, which actually worked out OK (though I lost pretty much the whole day in terms of working time). I still have the install, though and would like to see everything work.