[mythtv-users] Current generation low-power graphics card to use for 4K TV (both MythTV frontent and content)

Paul Gardiner lists at glidos.net
Tue Mar 9 11:48:55 UTC 2021

On 08/03/2021 23:37, James wrote:
>> On 9 Mar 2021, at 2:34 am, Bob <mythtv at cox.net> wrote:
>> On 2/1/21 2:27 AM, Mark Kendall wrote:
>>> On Mon, 1 Feb 2021 at 08:11, Stephen Worthington
>>> <stephen_agent at jsw.gen.nz> wrote:
>>>> For (relatively) low power, try looking for fanless cards, such as the
>>>> Nvidia GT1030s.  I am not sure how good their 4k support is as I do
>>>> not have a 4k TV yet, but they do have at least basic 4k support.
>>> As Stephen has said, I think the GT1030 is about the minimum for good
>>> NVDEC decoding coverage (if you are looking to the future and moving
>>> away from VDPAU), it is more than powerful enough and isn't a power
>>> hungry monster. (I use one myself for testing). Older cards will
>>> probably give you adequate decoding of just H264/MPEG2 (either with
>>> VDPAU or NVDEC) if you are just looking for handling broadcast
>>> material.
>> I recently purchased a 4k TV and am using a NVidia 1030 fanless GPU. Xorg automatically went into 4k mode when I connected the new TV via HDMI. My version of mythtv is not the latest (v30.0-58-g4761e7a6d4). I am still using VDPAU decoding. CPU is i3-2100T.
>> That said, I have audio sync. issues for a few seconds, periodically. Sometimes the GUI is laggy (MythCenter wide).
>> My purchase last year was the HDHR-4k model so I am hoping to be able to play 4k content. I am pondering moving to a NUC10 and an external hard drive enclosure for recordings.
> What works well for me is a nuc10 i3 with 2T m.2 for system snd recordings and external usb-3 for movies.
> It has thunderbolt, but I don't see any reasons to go 40G/s on a sata disk limited to 500 M/s.
> Somebody, sorry to forget who, maybe JohnP, set me a link to a dance clip. I was having smoothness issues. Turns out that they were broadcast artifacts and play back is as smooth as you could want. (The so-you-can-dance clip was as extreme an example as you could hope to find) (but all this is 1080)
> James

I think that was me posted the dance clip, and yes seconded: you 
couldn't wish for better playback than from these little devices. I 
recently found some H264 (High 10) videos which the graphics chip 
doesn't support and they played perfectly even though decoded on the CPU.

I use mine just as a frontend. It sounds like you are running it as 
front and backend combined. Interesting. What sources do you have and 
what capture devices?

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