[mythtv-users] Caveats in upgrading from Ubuntu 18.04 + MythTV 29.1 to something newer?

[Ryan Novosielski]

On Wed, Apr 26, 2023, at 23:45, Mark Wedel wrote:

>   It doesn't look like it.  But given that official nvidia docs say 
> GT730 is not supported was 525 drivers, might not be surprising it 
> doesn't work particularly well.  It is possible that some parts that it 
> needs to work well have been removed or otherwise no longer trigger.
>
>   It might also just mean that in some future version of that series of 
> drivers, support will be fully removed, and right now is on borrowed 
> time.  I don't know if nvidia does this, but some companies don't like 
> to drop support except in major releases (it would otherwise be 
> annoying to update from say 525 to 530 and find devices stop working, 
> but more reasonable to expect that from 5xx version to 6xx version)

That's not really how it works with NVIDIA drivers. I have more experience with datacenter hardware, so I'm not sure if it's different for the desktop-grade cards (we do also run high-end consumer-grade cards in the data center), but a recent example was that R470 was the last release of the driver to support K80 GPUs. There was at least an R495 release that did not support them. R470 was a long-term support release, and that's typically where hardware support will end for a particular card, but the R5xx vs. R6xx seems to be more about support for new hardware or something and does not line up with end of support. They also will definitively not work, at least for datacenter grade cards, on a driver version too new to support them, which was initially how I found out that K80s were not supported by newer than R470: the driver will simply not load/cards will not be visible.

=R