Bug#693083: System freezes with graphics going down [black screen].

[Andrey Smachev <bigasoft@gmail.com>]

So I've tested several kernel versions.

First, I built 3.2.41 from linux-source-3.2 (3.2.41-2). It hanged
after 18 hours of working, as expected.

Then I built 3.2.41, but without debian patches - hanged as well.

3.8.5 - proved to be perfectly OK.
3.3.8 - OK too.
3.3.1 - OK as well.

3.2.42 - very odd behaviour. Can't even get past DM login screen.

Conclusion: this bug looks transient. It should go away after upgrading
kernel to 3.3 or higher.

Hope, 3.2.41/42 won't make into stable release.

--
Andrey Smachev