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-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-6.14 in Ubuntu. https://bugs.launchpad.net/bugs/2112582 Title: HW accelerated video playback causes VCN timeout on VCN 4.0.5 (AMD Strix) Status in HWE Next: New Status in linux package in Ubuntu: Fix Released Status in linux-oem-6.11 package in Ubuntu: Invalid Status in linux-oem-6.14 package in Ubuntu: Invalid Status in linux source package in Noble: Invalid Status in linux-oem-6.11 source package in Noble: Fix Released Status in linux-oem-6.14 source package in Noble: Fix Released Status in linux source package in Oracular: Won't Fix Status in linux-oem-6.11 source package in Oracular: Invalid Status in linux-oem-6.14 source package in Oracular: Invalid Status in linux source package in Plucky: Fix Released Status in linux-oem-6.11 source package in Plucky: Invalid Status in linux-oem-6.14 source package in Plucky: Invalid Status in linux source package in Questing: Fix Released Status in linux-oem-6.11 source package in Questing: Invalid Status in linux-oem-6.14 source package in Questing: Invalid Bug description: [SRU Justification] [ Impact ] amdgpu has functionality that will reset the GPU when a job in a ring buffer times out to try to recover. When this happens, the application submitting the job will crash and there will be a flicker for ~2s while the GPU recovers. Proposed fix in v6.15-rc7 as commit 07c9db090b86e5211188e1b351303fbc673378cf ("drm/amdgpu: read back register after written for VCN v4.0.5"). [ Test Plan ] This was originally reported in https://gitlab.freedesktop.org/mesa/mesa/-/issues/12528. The reproduce steps are: 1. enabled HW accelerated video decode in Firefox 134 using about:config 2. run video playback streams as stress test for hours. [ Where problems could occur ] The fix reads back registers to ensure a previous write has completed. No known problem as this moment. [ Other Info ] While this affects VCN 4.0.5 (AMD Strix Point) and the fix has been committed to v6.15-rc7, nominate for 6.11+ - 6.14 kernels, e.g. linux/oracular, linux-oem-6.11/noble, linux/plucky, linux- oem-6.14/noble. ========== original bug report ========== Upstream bug: https://gitlab.freedesktop.org/mesa/mesa/-/issues/12528 amdgpu has functionality that will reset the GPU when a job in a ring buffer times out to try to recover. When this happens, the application submitting the job will crash and there will be a flicker for ~2s while the GPU recovers. Proposed fix in v6.15-rc7 as commit 07c9db090b86e5211188e1b351303fbc673378cf ("drm/amdgpu: read back register after written for VCN v4.0.5"). To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2112582/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
