Intermittent video corruption in browsers with VA-API hardware decoding (Steam Deck OLED), since ~mid-2026
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评估
- 难度
- 4/5
- 预计耗时
- 3-5 天
- 新手友好度
- 40/100
- Issue 类型
- 缺陷
- 描述清晰度
- 基本清楚
- 活跃度
- 活跃
- 技术栈
- linux, ubuntu
调研方向
The report identifies Steam Deck OLED, SteamOS 3.9.3, Mesa 26.1.2, Flatpak Chrome and Firefox, and the VA-API decode path; it does not name a source file or test. Start by checking whether the corruption reproduces with hardware decoding enabled and reviewing the amdgpu logs around an episode. Done means identifying and fixing the cause so extended YouTube playback stays clean with hardware decoding enabled.
由索引模型根据 Issue 内容生成。
描述
Hardware: Steam Deck OLED (Galileo, Sephiroth/Van Gogh-family APU), BIOS F7G0114
SteamOS: 3.9.3, build 20261015.100, beta channel (although problem persisted through switch from standard to beta)
Kernel: 7.2.7-valve2-1-neptune-72
System Mesa: 26.1.2 (radeonsi)
Flatpak GL runtime used by browsers: org.freedesktop.Platform.GL.default 26.2.4 (25.08 branch)
Browsers: Google Chrome 155.0.8059.84 (Flatpak), Firefox 158.0 (Flatpak)
Description
YouTube playback in Desktop Mode gets heavily distorted/corrupted at random moments during playback, then recovers. It happens in both Chrome and Firefox (slightly less often in Firefox). It started around May 2026 after a system update that had been put off for a while. It has persisted through rolling back SteamOS updates and a full factory reset.
Workaround / isolation
Turning off hardware video decoding fixes it completely:
- Chrome: flatpak override --user --env=LIBVA_DRIVER_NAME=disabled com.google.Chrome (media-internals then shows Dav1dVideoDecoder instead of VaapiVideoDecoder)
- Firefox: media.hardware-video-decoding.enabled=false
With software decoding, playback has been clean in testing. This points to the VA-API/VCN decode path (YouTube sends VP9 when hardware decoding is on, because Van Gogh has no AV1 hardware decode) or to the handling of the decoded frames afterward.
amdgpu 0000:04:00.0: Starting gfx_0.0.0 ring reset
amdgpu 0000:04:00.0: [gfxhub] page fault (src_id:0 ring:88 vmid:6 pasid:206)
amdgpu 0000:04:00.0: Process chrome pid 53931 thread chrome:cs0 pid 53937
amdgpu 0000:04:00.0: in page starting at address 0x000080c11078a000 from client 0x1b (UTCL2)
amdgpu 0000:04:00.0: GCVM_L2_PROTECTION_FAULT_STATUS:0x006012B1
amdgpu 0000:04:00.0: Faulty UTCL2 client ID: SQC (inst) (0x9)
amdgpu 0000:04:00.0: PERMISSION_FAULTS: 0xb
amdgpu 0000:04:00.0: Ring gfx_0.0.0 reset succeeded
amdgpu 0000:04:00.0: [drm] device wedged, but no recovery needed
Most corruption episodes don't produce a kernel log entry.
Steps to reproduce
- Desktop Mode, Chrome or Firefox Flatpak with default settings (hardware decoding on).
- Play YouTube videos (1080p) for an extended period.
- Periodically the image becomes distorted or corrupted for a while, then recovers.
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