From: Stefan Berndtsson <stefan@nocrew•org>
To: Adrian Cox <adrian@humboldt•co.uk>
Cc: linuxppc-dev@lists•linuxppc.org
Subject: Re: R128 Scaling.
Date: 16 Apr 2002 14:53:10 +0200 [thread overview]
Message-ID: <87wuv7reix.fsf@hades.nocrew.org> (raw)
In-Reply-To: <20020416133220.782c956e.adrian@humboldt.co.uk>
Adrian Cox <adrian@humboldt•co.uk> writes:
> I started looking at that a while ago, but didn't get very far. To get
> much further (and also to tackle the VGA out problems) I probably need
> the chip docs, but I haven't really pursued them. My one email asking to
> become an X developer was ignored, and I don't know of any other way to
> get the docs currently.
>
> The scaling patches I worked on had a problem with display flickering.
> They also needed a general mechanism to get the physical panel size.
I guess I never mentioned it was your patch I messed with. When switching
to 640x480, I get flickering if running 60Hz, but with 85 (which is what
fbset reports for me now), I see no such thing.
> > When running something in DGA (xmame for example), with XF4.1 and UseFBDev,
> > the resolution is changed by MAME, but it seems it still gets the fullsize
> > resolution passed to it, because it draws completely distorted graphics.
> > The area indicates that 1024x768 is passed as resolution even though the
> > display is set to 640x480 using scaling.
>
> I didn't get this one resolved at the time.
Too bad.. I hope it can be fixed :)
/Stefan
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-04-16 12:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-16 11:49 R128 Scaling Stefan Berndtsson
2002-04-16 12:32 ` Adrian Cox
2002-04-16 12:53 ` Stefan Berndtsson [this message]
2002-04-16 13:12 ` Michel Dänzer
2002-04-16 13:55 ` Adrian Cox
2002-04-16 14:01 ` Geert Uytterhoeven
2002-04-16 14:13 ` Adrian Cox
2002-04-16 13:20 ` Michel Dänzer
2002-04-16 13:30 ` Stefan Berndtsson
2002-04-16 13:40 ` Michel Dänzer
2002-04-16 13:46 ` Stefan Berndtsson
2002-04-17 5:44 ` Ani Joshi
2002-04-17 11:54 ` Michel Dänzer
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