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[Florian-evers <840140@xxxxxxxxxxxxxxxxxx>]

Some additional comments.

I never saw noisy widgets again since I use 0x77553311. But all the
other glitches remain.

Then, I see random misbehavior of the whole system if I'm logged into X.
For example, if I start an update (the Gentoo way, lots of compiling,
lots of IO, lots of output), after some minutes the update process
breaks with awkward errors such as segfaults. Then, in the syslog I see
other non-related processes crashed as well. Looks like a thermal
problem or bad RAM, but this only happens if X is started AND if I do
all the update stuff using X (lots of scrolling involved, perhaps this
causes a bug?). Memtest86+ didn't show any errors as well, and last
night I rebuilt the hole system in a tty, without any of these issues.

For me, these misbehaves / system crashes seem to be related to X!

In the meantime, I downgraded to kernel 3.1.4, with the same patch
applied (0x77553311). But the issues remain: Glitches and system
misbehavior if X is used.

Florian

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https://bugs.launchpad.net/bugs/840140

Title:
  Graphical corruption then black screen using an ATI Radeon 6790 card
  on boot

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