March 22, 20206 yr Hi, I have an issues with getting Hardware transcoding working with Plex versions higher than 1.18.0.1846-f62172e99. I have added the the following to my go file modprobe i915 chmod -R 777 /dev/dri and to my docker I have added this extra paramters: --device=/dev/dri From the Plex docker the igpu seems to be available but every time I start any type of transcoding it is not in hardware. If I add "intel_iommu=igfx_off" to syslinux.cfg then HW transcoding start working again but it is incredibly blockly and unwatchable. I have also tried deleting iHD_drv_video.so as recommended on the Plex forum, which resulting in Plex showing HW transcoding is active, but the video never starts playing. My system is based on an ASRock J5005-ITX which as a Gemini Lake CPU should support HEVC 10bit transcoding. For Plex I am using linuxserver's repo. Have anyone experience something similar or just have an idea how to fix it?
March 22, 20206 yr Community Expert Since this is not about an Unraid release, but instead is about a docker, it obviously doesn't belong as a Stable Release Report. For future reference, if you think you have a bug to report, see here: Also, you can go directly to the correct support thread for any of your dockers by simply clicking on its icon in the Unraid webUI and selecting Support.
April 20, 20206 yr On 3/22/2020 at 11:31 AM, blackbrizz said: Hi, I have an issues with getting Hardware transcoding working with Plex versions higher than 1.18.0.1846-f62172e99. I have added the the following to my go file modprobe i915 chmod -R 777 /dev/dri and to my docker I have added this extra paramters: --device=/dev/dri From the Plex docker the igpu seems to be available but every time I start any type of transcoding it is not in hardware. If I add "intel_iommu=igfx_off" to syslinux.cfg then HW transcoding start working again but it is incredibly blockly and unwatchable. I have also tried deleting iHD_drv_video.so as recommended on the Plex forum, which resulting in Plex showing HW transcoding is active, but the video never starts playing. My system is based on an ASRock J5005-ITX which as a Gemini Lake CPU should support HEVC 10bit transcoding. For Plex I am using linuxserver's repo. Have anyone experience something similar or just have an idea how to fix it? I have this same issue with the ASRock J5005-itx. Did you find the solution please? any idea where /usr/lib/plexmediaserver/iHD_drv_video.so this is stored to delete? looked on the usb flash and cache and can't find it? cheers
April 24, 20206 yr Author Yes I still have the issue. The drivers are located within the Plex docker, so you have to use its terminal and go to usr/lib/plexmediaserver/lib/dri/
April 29, 20206 yr I can confirm that these instructions https://forums.plex.tv/t/hardware-transcoding-broken-on-intel-nuc-with-j5005-cpu-on-ubuntu-18-04-lts/487616/35 do work sucessfully. I have an ASRock J5005 as well and Unraid 6.9.0 beta-1 and Plex 1.19.1.2701 (linuxserver/plex:1.19.1.2701-6327e27bf-ls90 to be exact) installed.
January 2, 20215 yr On 3/22/2020 at 7:31 AM, blackbrizz said: Hi, I have an issues with getting Hardware transcoding working with Plex versions higher than 1.18.0.1846-f62172e99. I have added the the following to my go file modprobe i915 chmod -R 777 /dev/dri and to my docker I have added this extra paramters: --device=/dev/dri From the Plex docker the igpu seems to be available but every time I start any type of transcoding it is not in hardware. If I add "intel_iommu=igfx_off" to syslinux.cfg then HW transcoding start working again but it is incredibly blockly and unwatchable. I have also tried deleting iHD_drv_video.so as recommended on the Plex forum, which resulting in Plex showing HW transcoding is active, but the video never starts playing. My system is based on an ASRock J5005-ITX which as a Gemini Lake CPU should support HEVC 10bit transcoding. For Plex I am using linuxserver's repo. Have anyone experience something similar or just have an idea how to fix it? I'm having exactly the same problem with J5040, have you found the solution?
January 3, 20215 yr Author 15 hours ago, Zohalu said: I'm having exactly the same problem with J5040, have you found the solution? I kept on using plex 1.18.0.1846 but it seems to also be fixed with the latest plex 1.21.1.3830 and unraid 6.9 RC2
January 8, 20215 yr On 1/3/2021 at 7:18 AM, blackbrizz said: I kept on using plex 1.18.0.1846 but it seems to also be fixed with the latest plex 1.21.1.3830 and unraid 6.9 RC2 Thank you for your reply! Indeed! After updated to 6.9 RC2, everything works perfectly fine. I spent a lot of time debugging this. Don't know whether it's a problem of older version of unRaid or Docker. I was trying out unRaid, but disappointed to see no response from unRaid in your thread. Also I found there's some other io problem with unRaid Docker running qBittorrent. I already switched to other NAS OS. But thank you very much for your reply!
January 8, 20215 yr 11 minutes ago, Zohalu said: Don't know whether it's a problem of older version of unRaid or Docker The issue is most likely related to the Linux kernel version in unRAID 6.8.3 vs. unRAID 6.9.0 RC2. The older kernel (4.19.xxx) in the 6.8.3 version of unRAID does not fully support the iGPU in the Gemini Lake Refresh/Ice Lake Intel processors. The newer Linux kernel version in unRAID 6.9.0 RC2 does support it. I may also have something to do with the Plex version as they also had to update Plex for the newer iGPUs. Edited January 8, 20215 yr by Hoopster
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