I tried Ubuntu and Kubuntu but both are freezing on my desktop PC. I can still move my mouse pointer but nothing reacts. I can't even switch to tty. (in comparison to the other freezing issues i found where the mouse pointer disappears but tty still works fine). It often occurs when i re-size or try to close a window (i will be still there but frozen) but not exclusively. Using a Intel Quad Core, 4GB Ram and an AMD Radeon Graphicscard. It's no duplicate to the other recent freezing bugs i found on ask Ubuntu (at least if i didn’t missed one) since the behaviour of the freeze is different, i can sill move my mouse, but can't switch to tty.
update i got to tty but wenn i type my login namethere for a while nothing happens then i get this message repeading every 10 secounds or so:
ata3.00: exeption Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata3.00: failed command: READ DMA EXT
ata3.00: cmd 'some hex numbers' tag 'some number between 0 and 28 in this case' dma 4096 in res 'some hex numbers' Emask 0x4 (timeout)
ata3.00: status: { DRDY }
and about every minute this message:
end request: I/O error, dev sda, sector 'some huge number'
Buffer I/O error on sda1, logical block 'some big number'
pointing to harddrive problem, doesn't it?