Subject: Re: X (was Re: Call for testers: i386 ACPI suspend/resume support)
To: Perry E. Metzger <>
From: Garrett D'Amore <>
List: current-users
Date: 06/21/2006 07:53:37
Perry E. Metzger wrote:
> Garrett D'Amore <> writes:
>>> This is not surprising. S3 is allowed to power off *everything* but
>>> memory, so the state of the video chip is lost. On restore we do a
>>> reset of the video, but we don't know what the state of the chip was
>>> before sleep. X effectively manages the drivers entirely in userland,
>>> so unless X decides to re-initialize the display it is going to be
>>> screwed up.
>> This is another example of why, IMO, the architecture of X talking
>> directly to registers is an incredibly bad idea.
> It might (or might not) be a bad idea, but we simply do not have the
> manpower to deal with the vast flow of new video cards that arrive
> with time. We have to use the drivers because by doing that, we
> get to piggyback on all their manpower. Unless you have a way to fix
> that problem, even if the current system sucks rocks, we'll have to
> continue using it.
> Perry

Well, I am tackling that problem head-on.  I have a radeonfb in the
works, that will improve the situation for a large number of ATI radeon

It will be easy to spin this into a Rage driver as well.

We have machfb and friends.

Nvidia is a totally different problem.  I think we are 100% at the mercy
of Nvidia as there are no open source drivers for recent Nvidia boards,
that I'm aware of.

Garrett D'Amore, Principal Software Engineer
Tadpole Computer / Computing Technologies Division,
General Dynamics C4 Systems
Phone: 951 325-2134  Fax: 951 325-2191