[mythtv-users] 0.22 on a Via SP13000 anyone?

R. G. Newbury newbury at mandamus.org
Sat Nov 21 03:24:59 UTC 2009

Robin Gilks wrote:
>>> Robin Gilks wrote:
>>>> I thought I'd dig out my old Via Epia SP13000 mini-ITX board as a spare
>>>> frontend for guests etc. I'm seeing the following error in Xorg.0.log
>>>> (EE) CHROME(0): [XvMC] ViaXvMCCreateSurface: Too many surfaces !
>>>> which makes me think that its a 0.22 specific problem as I'm running
>>>> the
>>>> 904 openchrome driver, the same as on 0.21 but I have updated the
>>>> kernel
>>>> from 2.6.25 to 2.6.30 (the versions in between seem to have DRI driver
>>>> problems with openchrome). One other oddity - I can't seem to get it to
>>>> run realtime.
>>> Something to do with the size of the surfaces. I don't remember the
>>> details
>>> any more, but a quick troll of the archive retrieved something I wrote
>>> earlier this year.
>>>>> If you are compiling fixes, as distinct to just installing an rpm,
>>> you
>>>>> could also try re-compiling the source after changing
>>>>> mythtv/libs/libmythtv/util-xvmc.h:56: max_num_xvmc_surfaces(16),
>>>>> to:
>>>>> mythtv/libs/libmythtv/util-xvmc.h:56: max_num_xvmc_surfaces(14),
>>> This lets xvmc create its surfaces.
>>> You also need to, or course, have the libViaXvMC file listed in
>>> XvMCConfig,
>>> to have explicitly listed all the extra modules in your xorg.conf, and
>>> ensured that DRI is set to mode 666.
>>> Since you are resurrecting the box, you probably have these already set.
>>> The surfaces issue is quite obscure.
>> Please note that mythtv allocates xvmc surfaces until it can't anymore.
>> Trying to allocate the first one that fails gives this message, but other
>> than
>> that it is quite harmless.
>> This set me on the wrong foot trying to diagnose problems with an eipa
>> m1000,
>> which runs quite smoothly with 9.10, by the way.
>> Ronald
> I have a workaround - I've downgraded from a 2-6-30 kernel to my last
> known good one of 2.6.25 (and downgraded udev to match) and its OK now.
> Looks like the DRM problem that arrived in 2.6.25+ hasn't been patched in
> the Gentoo patchset for 2.6.30 :-(
> I've not found a definitive answer yet on exactly what the problem is but
> I guess its a cleanup for other chipsets and nobody from Via has bothered
> to put in the fixes for their systems.
> Only difference I can find is that I have a agpgart module in 2.6.25 but
> not for 2.6.30

I always used the openchrome drivers, not the Via versions. If you 
aren't maybe you should.


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