JonaD

Hi all, I've been having an issue with GPU hangs in plex. I usually use an I5-8600K, but I swapped with an I7-9700K too see if the CPU was the issue too. Usually, I have Plex running for about a day with multiple people transcoding and I eventually get a GPU hang in the Syslog. In 6.8.3, I see the following error: Aug 11 01:22:24 JONAD kernel: [drm] GPU HANG: ecode 9:0:0x8fcffff9, in Plex Transcoder [13784], reason: hang on rcs0, action: reset Aug 11 01:22:24 JONAD kernel: i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 Aug 11 01:22:24 JONAD kernel: [drm:gen8_reset_engines [i915]] *ERROR* rcs0: reset request timeout Aug 11 01:22:24 JONAD kernel: i915 0000:00:02.0: Resetting chip for hang on rcs0 Aug 11 01:22:24 JONAD kernel: [drm:gen8_reset_engines [i915]] *ERROR* rcs0: reset request timeout Aug 11 01:22:24 JONAD kernel: [drm:gen8_reset_engines [i915]] *ERROR* rcs0: reset request timeout Aug 11 01:22:24 JONAD kernel: [drm:gen8_reset_engines [i915]] *ERROR* rcs0: reset request timeout Aug 11 01:22:24 JONAD kernel: i915 0000:00:02.0: Failed to reset chip Aug 11 01:22:24 JONAD kernel: [drm:gen8_reset_engines [i915]] *ERROR* rcs0: reset request timeout After this, Plex falls back to software transcoding until Unraid is rebooted. In 6.9.2 , a GPU hang also occurs, but the chip manages to reset. This results in streams that endlessly buffer until they are manually refreshed, but stay on HW transcoding. In that case, the error resembles below: resetting rsc0 for cs error HW transcoding was working flawlessly for most of 2020, and at one point I added a video card for a Windows VM and messed with IOMMU groups to pass it through. I want to say I started to see problems after that, but I'm not sure. My fallback solution is to just use this Nvidia card for plex transcoding, but I rather liked using QuickSync for this purpose. Does anyone know of problems with i915 in the latest plex versions? I have tried both linuxserver and binhex repo's. Thanks for your help!

Copying my comment from the spx labs blog post, since it may be more appropriate to post here. Hi! Really nice tutorial. One issue I'm having is high CPU usage in the OBS docker even when idle. I'm trying to use my GPU for encoding the video, and that part works, but the CPU usage of OBS itself (without encoded video) is too high to be feasible. Did you see this behavior as well? I wonder if this is because the CPU is being used to render the OBS scene compositing. Is it possible to use the GPU for this as well? Would this require a different Ubuntu Gui container base? Is it even possible?