From: tholen@antispam.ham
"Rich Walsh" writes:
>>> Users of the SNAP and GenGradd video drivers running their displays in
>>> full-color mode (i.e. 16m colors) should see a noticeable improvement
>>> in video performance thanks to the implementation of DIVE. Sadly, the
>>> Panorama driver can not be supported if its "Shadow Buffer" is enabled.
>>> See the 'Notes' section below for details on how to disable or tune
>>> DIVE support.
>> I decided to disable DIVE support because of screen corruption
>> underneath the mouse pointer, with some degree of persistence
>> where mouse clicks occur. An example of the former would be
>> with selecting a bookmark. Moving the mouse down the list of
>> bookmarks, the item underneath the mouse pointer would be
>> highlighted, but an approximately square area directly underneath
>> the mouse pointer would not use the highlight color scheme.
>> Where mouse clicks occur, I'd see an approximately square area
>> of the screen with the contents of some other place on the screen
>> duplicated. Disabling DIVE support got rid of the problem.
>>
>> SNAP build 420 on a Matrox G450 running dual-head on 1600x1200
>> displays with 16 million colors.
> As noted in the announcement:
>> To eliminate mouse-pointer corruption (required for SNAP in VBE mode):
>> - add "SET MOZ_ACCELERATED=1" to config.sys.
My bad; I had seen that and taken it literally to mean corruption
of the mouse pointer itself, not the screen underneath the mouse
pointer. My mouse pointer has been fine. But yes, setting that
environment variable cured the problem with hardware acceleration
turned on. How does one tell if SNAP is running in VBE mode? I
only recall setting the resolution, refresh rate, and color depth.
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