[mythtv-users] Quadro NVS 140M and VDPAU - not working

Nick Rout nick.rout at gmail.com
Thu Apr 29 01:39:58 UTC 2010


On Thu, Apr 29, 2010 at 11:46 AM, Bob Sully <rcs at malibyte.net> wrote:
>
> Tortise wrote:
>> ----- Original Message -----
>> From: "Bob Sully" <rcs at malibyte.net>
>> To: "Mythtv users' list" <mythtv-users at mythtv.org>
>> Sent: Friday, March 26, 2010 7:13 PM
>> Subject: [mythtv-users] Quadro NVS 140M and VDPAU - not working
>>
>>>It has an nVidia Quadro NVS 140M video card with 256M RAM (which is
>>> apparently the minimum video memory necessary).
>>
>> A recent post by JYA confirmed only 256M was necessary for HD, its the
>> extra myth stuff that adds a higher requirement such as OSD
>> (and I am not sure what else)
>>
>> As you know the Dell Spec says:
>>
>> nVIDIA Quadro NVS 140M - 256 MB of video memory (dedicated) at <512 MB of
>> system memory, or 512 MB of video memory (dedicated plus
>> shared) >= 1 GB of system memory
>>
>> How do you know you only have 256M of useable video RAM?
>>
>> As best I can tell the NVS 140M should have 512M available when there is
>> 4G motherboard RAM installed as you report.
>>
>> How much RAM does "NVIDIA X Server Settings" say under the "GPU 0" Tab?
>>
>> I found one report of someone who thought they had 256M but in their X log
>> it said:  (--) NVIDIA(0): Memory: 524288 kBytes    What
>> does yours say?
>>
>> Interesting about mplayer, it does seem to suggest there may be a problem
>> with the mplayer deinterlacer settings?
>>
>> I've decided to have a go with one of these rigs also, so if I get
>> myth(buntu) working properly I'll post.
>>
>>
>
> (II) Apr 28 07:36:59 NVIDIA(0): NVIDIA GPU Quadro NVS 140M (G86) at
> PCI:1:0:0 (GPU-0)
> (--) Apr 28 07:36:59 NVIDIA(0): Memory: 524288 kBytes
>
> You're absolutely right.  I was basing my previous post on what I found in
> the output of lspci, which showed 256M of prefetchable memory and 48M of
> non-prefetchable memory.  So it does actually have 512M available.
>
> Actually, standalone mplayer with VDPAU works fine on 720p and 1080p video
> files; the problem I have with VDPAU playback seems only to be within
> Myth, and usually with 1080i recordings; this is why I assume the issue is
> with the deinterlacer on this particular machine.  On my combined BE/FE
> downstairs, everything plays back fine within Myth.

what about a 1080i recording with mplayer? To eliminate the network,
scp it over to the frontend and try playing it.


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