A user with an NVIDIA RTX A400 GPU is experiencing transcoding failures due to a bug in NVIDIA's driver (version 575.64.05) that causes CUDA initialization errors, a bug reportedly fixed in newer...

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  "signal_type": "reddit-company",
  "signal_subtype": "customerFeedback",
  "detected_at": "2026-09-25T21:45:56+00:00",
  "company": {
    "name": "Nvidia",
    "domain": "nvidia.com"
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  "data": {
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    "stage": "none",
    "awards": 0,
    "timing": "ongoing_state",
    "topics": [
      "bug",
      "driver",
      "gpu",
      "cuda",
      "transcoding"
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    "post_id": "1wq8w3h",
    "summary": "A user with an NVIDIA RTX A400 GPU is experiencing transcoding failures due to a bug in NVIDIA's driver (version 575.64.05) that causes CUDA initialization errors, a bug reportedly fixed in newer versions not yet available on their QNAP NAS.",
    "category": "reliability",
    "comments": [
      {
        "url": "https://www.reddit.com/r/qnap/comments/1wq8w3h/comment/pc270ni/",
        "depth": 0,
        "score": 2,
        "author": "sosen85",
        "excerpt": "It seems that you have found the root cause: the bug was fixed in version 580.76, but you are running version 575.64. Have you tried updating the driver? Is it available?\n\n If I were you, I would try installing Proxmox+TrueNAS or TrueNAS on bare metal. Otherwise, just use Debian.",
        "posted_at": "2026-09-25T22:12:15.000Z",
        "author_url": "https://www.reddit.com/user/sosen85/"
      }
    ],
    "evidence": [
      "[post] Jellyfin hardware transcoding fails with cuInit failed: CUDA_ERROR_NOT_INITIALIZED after some uptime",
      "[post] The FFmpeg transcode log shows: [CUDA] cu->cuInit(0) failed -> CUDA_ERROR_NOT_INITIALIZED: initialization error",
      "[post] According to https://bbs.archlinux.org/viewtopic.php?id=307380 this is a bug in the Driver, that was fixed with 580.76.05 and newer (at least for Arch)."
    ],
    "virality": "very_low",
    "post_date": "2026-09-25T21:45:56.000Z",
    "post_kind": "text",
    "post_text": "I have a TS-855eU with 64 GB RAM, NVIDIA RTX A400 assigned to ContainerStation, QNAP NVIDIA GPU driver 575.64.05 through NvKernelDriver 5.2.10.3577.\n\nContainerStation with linuxserver/jellyfin:12.1, NVENC transcoding\nruntime: nvidia-runtime\nenvironment:\n- NVIDIA_VISIBLE_DEVICES=all\n- NVIDIA_DRIVER_CAPABILITIES=compute,video,utility\nAny movie that needs transcoding fails at once. The Jellyfin log only shows FFmpeg exited with code 187. The FFmpeg transcode log shows:\n[CUDA] cu->cuInit(0) failed -> CUDA_ERROR_NOT_INITIALIZED: initialization error\nDevice creation failed: -542398533.\nnvidia-smi inside the container sees the GPU, and the driver version matches the host/dev/nvidia0, nvidiactl, nvidia-uvm and nvidia-uvm-tools are all passed through and can be opened from inside the containerlibcuda.so in the container is the same version as the kernel module\n\nHosts dmesg:\nNVRM: nvCheckOkFailedNoLog: Check failed: Out of memory [NV_ERR_NO_MEMORY] (0x00000051) returned from _memdescAllocInternal(pMemDesc) @ mem_desc.c:1353\nNVRM: faultbufCtrlCmdMmuFaultBufferRegisterNonReplayBuf_IMPL: Error allocating client shadow fault buffer for non-replayable faults\nAfter some runtime the NAS only has about 700MB of free RAM. The rest is file cache.\n\nAs a workaround i can run Qboosts Optimize Memory and the transcoding will work right away after that.Setting vm.min_free_kbytes to 4GB using sudo...",
    "sentiment": "negative",
    "subreddit": "qnap",
    "post_title": "Jellyfin hardware transcoding fails with cuInit failed: CUDA_ERROR_NOT_INITIALIZED after some uptime",
    "prominence": "core",
    "source_url": "https://www.reddit.com/r/qnap/comments/1wq8w3h/jellyfin_hardware_transcoding_fails_with_cuinit/",
    "entity_role": "vendor",
    "post_author": "timozn",
    "upvote_ratio": 0.6666666666666666,
    "mention_count": 11,
    "mention_surge": true,
    "subreddit_url": "https://www.reddit.com/r/qnap/",
    "total_upvotes": 1,
    "comments_total": 3,
    "total_comments": 3,
    "other_companies": [
      {
        "name": "QNAP",
        "role": "partner",
        "domain": "qnap.com"
      }
    ],
    "post_author_url": "https://www.reddit.com/user/timozn/",
    "signal_category": "feedback",
    "comments_included": 1,
    "products_mentioned": [
      "RTX A400",
      "NVIDIA GPU driver 575.64.05"
    ]
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}

curl https://signals.autobound.ai/v1/signals/08849029-98db-5399-a977-20b520a7dc38 \
  -H "X-API-KEY: $AUTOBOUND_API_KEY"

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"nvidia.com","limit":20}'