Movie corruption when plex decodes 4K HDR

[ChuckPa]

If you’re virtualizing the GPU and the virtualization can’t keep PMS isolated –

Isn’t that the responsibility of the virtualization software ?

This is the same concept as running VMs on a host computer (type 2) like Vmware Workstation which relies on the OS to virtualize another OS.

I really think this falls back onto the SR-IOV solution you’re using.
The argument in support of that is “What if my VMware compromised the host it was running on or another VM?” That wouldn’t be the OS’s fault. It would be the hypervisor’s fault.

I don’t see Plex issues here. I do see SR-IOV software issues.

[Sh_Cby]

I don’t think SR-IOV breaks the PMS because jellyfin works.

And for the VM, SR-IOV is a separate PCI device, depending on how the application calls it, not how the hardware handles it.

[ChuckPa]

Then, unfortunately, the decision is yours to make but it sounds like the decision’s been made.

I’m not going to be able to get any traction on this when they didn’t even know what SR-IOV was until I asked.

Most of us dedicate the GPU to the system. Abstracting the GPU and virtualizing it doesn’t make sense. Most well-behaved apps can share a host-rooted GPU. Whatever you’re doing must require a very special environment.

If that’s what you need to do then your choice of server software is pretty much decided ?

[Sh_Cby]

I still have a lot of windows virtual machines that need sr-iov to keep running, so I shouldn’t be able to turn sr-iov off.

And I don’t think PMS is incapable of fixing the problem, just lacking patience and time.

[Sh_Cby]

Unfortunately, I adjusted to LXC and had exclusive use of card0 and renderD128, and the HDR tone mapping remained the same.