modesetting feature status

[Joshua C.]

2008/9/17 Adam Jackson <ajax at redhat.com>:
> On Wed, 2008-09-17 at 20:36 +0200, Joshua C. wrote:
>
>> Dave can you make the radeon driver fall back to vesa in case of a
>> problem? my display disappears after modprobe radeon modeset=1 and if
>> the driver unloads itself, then maybe i can see any error messages on
>> the display.
>
> Not really.  There's no way to ask the display "hey, that mode I'm
> sending you, does it work?" so it's sort of hard to programmatically
> know when it doesn't work.
>
> - ajax
>
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In theory i can tell the driver that "this mode isn't working for you"
with a specific key e.g. pressing ctr+alt+n should tell the driver to
unload itself.