Bug#463076: xserver-xorg-video-ati: machine freezes when X is stopped or second X started

[Bram Senders]

On Tue, 2008-01-29 at 17:58 +0100, Brice Goglin wrote:
> Bram Senders wrote:
> > The following versions all exhibit the same problem:
> > 1:6.7.198~git20080117.6bd510a2-1
> > 1:6.7.198~git20080109.10e7636c-1
> > 1:6.7.198~git20080102.30cab1db-1
> > 1:6.7.198~git20080101.f65374f5-1
> >
> > I then tried version 1:6.7.198~git20071221.be7f8fd3-1, but this one has
> > the "old" bug #457563 again, where the freeze already occurs on startup,
> > and trying "AGPMode" "4" or "BusType" "PCI" then still causes a freeze
> > on startup.  So I cannot use this version... I assume earlier versions
> > have the same bug?
> 
> No, I think #457563 appeared in 6.7.197 and was not in 6.7.196 or earlier.

Okay, after some experimenting I have found that 1:6.6.193-2 is the
newest version which doesn't cause the lockups, and the version after
that, 1:6.7.191-1, causes the system to freeze -- either by stopping X
or by starting a second one.  So something went wrong from 1:6.6.193-2
to 1:6.7.191-1.

How do I debug this further?

Bram