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    Jellyfin Forum Support Troubleshooting Intel Arc Subtitle Issue

     
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    Intel Arc Subtitle Issue

    ajkid93
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    Posts: 5
    Threads: 2
    Joined: 2024 Aug
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    #1
    2024-08-04, 07:03 AM
    Intel ARC doesn't seem to work when enabling hw decoding/transocding and enabling subtitles with playback. However when disabled hw accelerated decoding the hw accelerated encode works. It is just when I have hw decoding enabled. Media is h264 and subtitles are pgssub. So ideally it would work with hw decoding.

    It is a VM with gpu passthrough and jellyfin is a docker container in the vm. For reasons, I have to do it this way because I spent 4 hours trying to get the native app (non docker) to work with encoding but it refused. Prior to switching to the vm docker I was running it as a truenas app and it worked flawlessly.

    Anyways, for reasons I do not want to go into I really don't want to go back to truenas app. I had this present setup working well for a year with a 3050 but switched to arc. Seems to be an arc issue specifically.

    Hoping someone that can point me into the right direction about arc and pgsubs fix.
    Efficient_Good_5784
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    Posts: 1,167
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    #2
    2024-08-04, 07:30 AM
    Is this in a VM inside of Truenas Scale?
    ajkid93
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    #3
    2024-08-04, 08:00 AM
    It is in truenas scale.
    TheDreadPirate
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    #4
    2024-08-04, 03:08 PM
    What OS is the VM running and what kernel is it using?
    Jellyfin 10.10.7 (Docker)
    Ubuntu 24.04.2 LTS w/HWE
    Intel i3 12100
    Intel Arc A380
    OS drive - SK Hynix P41 1TB
    Storage
        4x WD Red Pro 6TB CMR in RAIDZ1
    [Image: GitHub%20Sponsors-grey?logo=github]
    ajkid93
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    #5
    2024-08-04, 04:26 PM
    6.8.0-39-generic
    Ubuntu 24.04
    TheDreadPirate
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    Reputation: 460
    Country:United States
    #6
    2024-08-04, 04:42 PM
    You need to roll back to 6.8.0-36. Starting with -38 Ubuntu's kernel inherited an upstream kernel bug that breaks transcoding almost completely for Arc GPUs. One of the Jellyfin devs and I submitted a bug report to Ubuntu asking them to back port a couple of patches to resolve the issue. But the kernel with both patches hasn't been released yet.

    https://bugs.launchpad.net/ubuntu/+sourc...ug/2072755
    Jellyfin 10.10.7 (Docker)
    Ubuntu 24.04.2 LTS w/HWE
    Intel i3 12100
    Intel Arc A380
    OS drive - SK Hynix P41 1TB
    Storage
        4x WD Red Pro 6TB CMR in RAIDZ1
    [Image: GitHub%20Sponsors-grey?logo=github]
    ajkid93
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    Junior Member

    Posts: 5
    Threads: 2
    Joined: 2024 Aug
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    #7
    2024-08-04, 05:09 PM
    It is working as intended now. Thanks much!
    TheDreadPirate
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    Posts: 15,375
    Threads: 10
    Joined: 2023 Jun
    Reputation: 460
    Country:United States
    #8
    2024-09-10, 04:54 PM
    Ubuntu released 6.8.0-44 with all the patches that fix this issue.
    Jellyfin 10.10.7 (Docker)
    Ubuntu 24.04.2 LTS w/HWE
    Intel i3 12100
    Intel Arc A380
    OS drive - SK Hynix P41 1TB
    Storage
        4x WD Red Pro 6TB CMR in RAIDZ1
    [Image: GitHub%20Sponsors-grey?logo=github]
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