Michael,

I've been having recent issues with a Radeon HD 2600 card. Could you review your messages logs for entries containing :
* page flip
* unable to schedule IB
* wait for fifo failed
... associated with drm or radeon.

You might be having the same problem as myself....

Pat.

On 08/28/2011 04:05 PM, Michael Schwendt wrote:
> Never have seen this with F15. Only have read about it.
>
> Now it's hitting me badly everytime I boot F16 Alpha. Sometimes the
> second login attempt succeeds, sometimes it doesn't and needs
> a third attempt.
>
> gnome-shell-3.1.4-1.fc16.x86_64
>
> Where do I search for meaningful error messages?
> Attached .xession-errors is flooded.
>
> [...]
>
> Updating the machine hasn't been easy and hasn't fixed the problem
> either. Evolution dep breakage required me to update wildcard-groups of
> packages or else I couldn't get xorg\* and other updates. Applying
> the xorg\* updates required a reboot as a simple logout/login resulted
> in severe screen corruption.
>
> [...]
>
> During the boot process (this is ATI Radeon graphics hardware), I often
> lose the display and get a black screen with my monitor losing signal.
> This has never happened with F14 and older, and only rarely with F15.
> A workaround is to disable rhgb.
>
>
>