[Intel-gfx] frame buffer compression and 915GM

SD sd.domrep at yahoo.com
Fri May 27 17:21:32 CEST 2011



--- On Fri, 5/27/11, Clemens Eisserer <linuxhippy at gmail.com> wrote:

> From: Clemens Eisserer <linuxhippy at gmail.com>
> Subject: Re: [Intel-gfx] frame buffer compression and 915GM
> To: "intel-gfx" <intel-gfx at lists.freedesktop.org>
> Date: Friday, May 27, 2011, 6:50 PM
> I also get "FBC unsupported on this
> chipset" with 2.6.38.6 on i945GM,
> although I can remember it used to work a year ago or so.
> Have there been some correctness checks that disable it on
> hardware
> known to be bugged?
> 
> Thanks, Clemens



Unsupported, disabled, enabled are different things.

If FBC supported it can be disabled/enabled.

If it is unsupported it means that something is wrong with detection, because second OS on the same laptop - 3 years old OpenSuse uses it without problems.

Thank you.







> 
> 2011/5/27 SD <sd.domrep at yahoo.com>:
> > OK, thank you. I checked it, and I got unexpected
> answer -
> >
> > FBC unsupported on this chipset.
> >
> >
> > But on my old OpenSuse:
> >
> > X.Org X Server 1.5.2
> > Release Date: 10 October 2008
> > X Protocol Version 11, Revision 0
> > Build Operating System: openSUSE SUSE LINUX
> > Current Operating System: Linux linux-xmc2
> 2.6.27.45-0.1-pae #1 SMP 2010-02-22 16:49:47 +0100 i686
> > Build Date: 22 September 2010  11:23:20AM
> > ...
> >
> > (**) intel(0): Option "FramebufferCompression" "on"
> > ...
> > (**) intel(0): Framebuffer compression enabled
> > ...
> >
> > As you can see - It was supported 3 years ago.
> >
> > I would like to know why now FBC becomes unsupported
> ?
> >
> > Thank you.
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> >
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