linux-kernel - Re: 2.6.23-rc7 + radeonfb/s2ram

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Message-Id: <1190592478.6886.9.camel@localhost.localdomain>
Date:	Mon, 24 Sep 2007 10:07:58 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Oleg Verych <olecom@...wer.upol.cz>
Cc:	Mihai Dontu <mihai.dontu@...il.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: 2.6.23-rc7 + radeonfb/s2ram


On Sun, 2007-09-23 at 23:31 +0200, Oleg Verych wrote:
> * Sun, 23 Sep 2007 22:22:28 +0300
> * Organization: Home
> 
> []
> >> > 
> >> >   So there, if one wants "ATI Radeon display support" on Radeon XPRESS 200M with
> >> >   X using radeon_drv.so, *should* put "Framebuffer Console support" to N (if it's
> >> >   not already).
> []
> >   Bottom line: no radeonfb for me :( at least, not now; but I have to be honest with
> >   you: I don't see what commit dd1447134454b169d5ae353aceb93f2368db8547 brought new
> >   into the picture. The previous radeonfb worked just great, but then, again, maybe I'm
> >   not using the console at it's full power :)
> 
> In fact, it's known statement, that there must only one hardware driver
> for graphic adapter. Be it framebuffer with X fb driver on it or legacy
> VGA text and X with its driver.so and 3D stuff.
> 
> (i choose legacy text without X for the most of my time, though :)

Not quite ... on PowerMacs, we've been routinely using radeonfb and X
together. However, for that to work, in general, one has to be careful
to switch back to console mode before suspending and back to X after
resume, which seems to have been broken by many distro lately, probably
because somebody made it optional in the kernel...

Ben.


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