[Pm-utils] Re: Video adapter resuming

Peter Jones pjones at redhat.com
Thu Nov 30 13:56:07 PST 2006

On Thu, 2006-11-30 at 21:12 +0100, Stefan Seyfried wrote:
> On Thu, Nov 30, 2006 at 02:56:49PM -0500, Peter Jones wrote:
> > On Thu, 2006-11-30 at 20:05 +0100, Stefan Seyfried wrote:
> > > It means "machine must not use framebuffer or it will hang during resume".
> > > Happens often with Radeons, these machines work fine, but only with VGA
> > > console. vga16fb might also work, but i was too lazy to really code this
> > > distinction into the s2ram whitelist.
> > 
> > OK, so in this case it means HAL won't do anything with
> > vbe_post/vbe_save here if you're using fbcon?  Or am I misunderstanding?
> No. If you are not using fbcon, then you cannot suspend at all, since you
> won't be able to resume (the machine will hang with FB).
> You still need the vbe_post/vbe_save/vbe_mode to get video back after resume
> if it did not hang.
> So the flag is more a "can_only_suspend_when_not_using_framebuffer" flag :-)

Ugh, that kinda sucks.  Because really for lots of thinkpads we want
this to be an if-then-else.

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