Re: Questions about vbestate

["Stefan Dösinger" <stefandoesinger-RbZlAiThDcE@public.gmane.org>]

Am Mittwoch, 19. Januar 2005 01:55 schrieb Matthew Garrett:
> On Tue, 2005-01-18 at 19:12 +0100, Stefan Dösinger wrote:
> > *If I save the card's state with vbesate before calling the post-routine
> > and restoring the state afterwards makes switching back to X work again.
>
> I'd recommend saving the vbe state on boot, and not on every suspend.
> I'm not sure why, but there certainly seems to be some amount of
> information that's lost otherwise. Saving on suspend seems to make a
> large amount of hardware unhappy - I've only found one machine that
> complains about it on boot.

Is it possible to reset the whole video memory with vbetool? I mean, if we 
reset the graphics processor when posting the card, we should also clean up 
the garbage in the video memory. The content in my card's memory survives a 
card reboot, a suspend-to-ram cycle and even a system reboot. Under certain 
circumstances this crashes both fglrx and the open source radeon driver.

Stefan


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