Passthru of Graphics card
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Hi all
I've Emby in Docker in a VM on xcpng 8.3
All working fine but I'd like to test hardware encoding.
The Protectli VP6670 I use have the follwing CPU:
In the PCI info for passthru I have the following:
Can I pass the Iris Graphics VGA controller to the VM?
I've only used USB passthru until now, so I'm unsure on this.
Thx in advance
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@manilx Maybe this post on Intel iGPU passthough gives some ideas? You probably loose the video output on the Protectli when you assign the iGPU to a VM.
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@gskger Thx for that. Seems it could work. But loosing video output on the host itself would be a problem.....
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I was going through the same with my Protectli devices and found the following, which also might apply to your situation:
- When enabling passthrough for the IrisXE graphic, the HDMI port showed no picture anymore - BUT - then DP port still shows everything, even with passthrough enabled
My Protectli uses openboot as BIOS, so this might make a difference, so better mentioning it.
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@imaginapix Thx fo that. Very useful. I'm using standard Bios and need the HDMI port for display as I have a piKVM hooked up for remote interaction.....
Guess I will refrain from that as so far the CPU manages transcoding fine most of the time. And with a passthru I would also have issues with backups (snapshots) and migration. -
Yeah, it's a bummer that active PCI/USB passthrough blocks snapshots/backups.
I understand that it is a problem for the migration since there is no guarantee that the device is also available on the other host, but for snapshot/backup it should not be of importance
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This is something to dig at the XAPI & Xen level, to know how difficult it could be, I have no idea.
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@imaginapix Exactly, migration is logical but snapshots and live backups is another ballpark.
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@manilx said in Passthru of Graphics card:
... and need the HDMI port for display as I have a piKVM hooked up for remote interaction.....Before I forget:
You could use an DP to HDMI cable for that, but given the other things we talked about, this might also only be a crutch. -
@imaginapix Didn't think of that.... But I guess it's more work than it's worth in this instance.
