[Openchrome-users] CN700 XvMC

[Christophe Burgalat]

Hello,

Any news concerning this black screen using CN700 and XvMC ?
I'm facing exactly the same problem with my Epia C7 card.

Some more precision : I first tried to make it work with a not updated agpgart 
module. The drmAgpAcquire function failed and I had the following message in 
Xorg log file
(II) VIA(0): [dri] use pci.
All was working fine with xvmc, except that the CPU gain was not really 
important.

Then I upgrade my agpgart module. I now have the same messages as Trevor in my 
Xorg log file
(II) VIA(0): [dri] use agp.
But now, I have a black screen and no error messages.

I hope it helps finding a solution to our problem.

Christophe

Le Vendredi 16 Juin 2006 22:51, Trevor Kramer a ?crit?:
> I also tried running a vanilla 2.6.16-20 kernel and am still getting
> the black screen
>
> Trevor
>
> On Jun 16, 2006, at 10:42 AM, Trevor Kramer wrote:
> > That's strange. I'm running the latest FC5 kernel
> > (2.6.16-1.2133_FC5), the latest drm (which has the pci ids added) and
> > openchrome drivers from cvs/svn and xine 1.1 and I just get a black
> > screen with no errors. Here is the xine output.
> >
> > video_out_xxmc: New format. Need to change XvMC Context.
> > width: 480 height: 288 mpeg: 1 acceleration: 7
> > video_out_xxmc: Surface type 0. Capabilities 0x       2 0x       4
> > video_out_xxmc:   Requests: 0x       1 0x       4
> > video_out_xxmc: Surface type 1. Capabilities 0x       1 0x       4
> > video_out_xxmc:   Requests: 0x       1 0x       4
> > video_out_xxmc: Creating new XvMC Context 842094169
> > video_out_xxmc: Using Backend subpictures.
> > video_out_xxmc: Using hardware decoding for this stream.
> >
> > i get sound and osd even shows up in mythtv but the video is just a
> > black box.
> >
> > Trevor
> >
> > On Jun 16, 2006, at 9:58 AM, Radu Cristescu wrote:
> >> Me and a colleague got a CN700-based system to work earlier this
> >> week, using kernel 2.6.16.20, X and DRM drivers built from source.
> >> We were using Xine 1.1.1 with the xxmc option. Besides the fact
> >> that we had to add the PCI ID to the DRM sources ourselves (see
> >> Razvan G's bug report earlier this week), everything worked well in
> >> our tests.
> >>
> >> Trevor Kramer wrote:
> >>> This version gets rid of the error message for me. Thanks Thomas.
> >>> I  still only get a blank screen when using XvMC though - but that
> >>> may  not be related to drm. Has anyone else gotten XvMC working on
> >>> a CN700?
> >>>
> >>> Trevor
> >>>
> >>> (II) VIA(0): direct rendering enabled
> >>> (II) VIA(0): [Xv] Using PCI DMA for Xv image transfer.
> >>> Fulfilled via DRI at 2766240
> >>> (II) VIA(0): Benchmarking video copy. Less is better.
> >>> (--) VIA(0): Timed   libc YUV420 copy... 2131917. Throughput:
> >>> 333.1  MiB/s.
> >>> (--) VIA(0): Timed kernel YUV420 copy... 2150919. Throughput:
> >>> 330.2  MiB/s.
> >>> (--) VIA(0): Timed    SSE YUV420 copy... 1191789. Throughput:
> >>> 595.9  MiB/s.
> >>> (--) VIA(0): Timed    MMX YUV420 copy... 1801594. Throughput:
> >>> 394.2  MiB/s.
> >>> (--) VIA(0): Ditch 3DNow! YUV420 copy... Not supported by CPU.
> >>> (--) VIA(0): Timed   MMX2 YUV420 copy... 1264154. Throughput:
> >>> 561.8  MiB/s.
> >>> Freed 2766240 (pool 2)
> >>> (--) VIA(0): Using SSE YUV42X copy for video.
> >>> (II) VIA(0): [XvMC] Registering viaXvMC.
> >>> (II) VIA(0): [XvMC] Initialized XvMC extension.
> >>> (II) VIA(0): - Done
> >
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