Several months ago, I installed Ubuntu 12.04 on an Acer Aspire One AO722-825 laptop, with these specs:
AMD C-Series Dual-Core C-60 processor
4 GB RAM
AMD Radeon HD 6290 graphics card, w/ 256 MB dedicated memory
I experienced various problems with Ubuntu, but the worst was that, after a few months of use, it started to be that it would only start about about half of the time. When it didn't start up properly, it would go to a black screen, then return to the purple loading screen two times. Then I had to do a hard shutdown. Windows 7 is also on this laptop, and it never had any similar problems.
I had tried Mint before on a USB on this computer, and it seemed to work well, so I tried installing Mint 14 with Cinnamon, 64-bit, next to Ubuntu. Mint runs very nicely once started, but the second time I tried to boot it, same problem! It starts loading, then changes to a different screen, then goes back to the same one.
I got boot logs for both successful and unsuccessful boots and looked at them with a file comparison program, and I can't find anything significant. I attached them in case they'd be helpful, along with xorg.0.log and kern.log.
So, any ideas about what could be the issue here? I know this laptop isn't great with Linux (it has other weird problems with wireless drivers, graphics drivers, etc.) but I haven't come across any other user of it experiencing similar boot problems.
Thanks!


