915gm/945gm/XAA lockup with gray blocks when switching video mode
jbarnes at virtuousgeek.org
Thu Oct 11 17:19:28 PDT 2007
On Wednesday, October 10, 2007, Bryce Harrington wrote:
> Commenting out this loop seems to resolve the issue.
> What is this loop for, and what do we risk by not having it?
The loop is needed for modes where we use the pallet. But this might be
a timing issue. Can you try replacing the two pallet restore loops
with delay loops of various kinds? That would indicate whether the
time it takes to restore the pallet is exposing a bug elsewhere.
Alternately, you could add some small delays to the pallet restoration
itself in the unlikely event that the pallet registers don't like to be
written too quickly.
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