So, I'm on about my fifth fresh install of Lucid Lynx with the exact same result every way I try it. Here's what happens:
After a fresh install, I begin going about my business. Surfing, setting accounts up, etc. At some point (it is completely random, sometimes 10 seconds, sometimes 10 minutes, sometimes 30 minutes), the desktop will freeze up. The mouse will still be completely responsive, but clicking on stuff does nothing.
So, in that state, if I drop to terminal via CNTL+ALT+F1, I get a login prompt that I can't use because the screen begins filling up with endless 'Buffer I/O error on device sda3' and 'EXT-fs error' etc.
There aren't any issues with the drive. I was previously running 9.10 without issue, and just to make sure I have done another clean install of 9.10 in between one of the many 10.04 installs and it works fine.
I skimmed through dmesg but didn't see anything helpful. I don't really know where to start looking at this point. I've been googling for a while now, but have had zero luck finding anyone experiencing the same thing. I did see a couple forum posts that were kind of similar (frozen display but functional mouse), but those led no where.
Any help would be greatly appreciated. I really don't want to have to drop back to 9.10.
Ubuntu 10.04 64-bit
NVidia GeForce 7800