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...driver, and figure out what it was doing differently. If this is > something you're interested in, I'd be happy to provide some guidance. I've two mmio traces, nouveau and nvidia, each using mpv(1) to play the same ten-second extract of an iPlayer MP4, with and without ‘--vo=vdpau --hwdec=vdpau’. $ grep -n ^MARK nvidia-4.mmiotrace 20:MARK 65645.302939 buffer_size_kb: 524288 21:MARK 65645.385776 starting x 1447554:MARK 65681.979892 x started 1448560:MARK 65682.446747 mpv none start 1868197:MARK 65701.153770 mpv none done 1869462:MARK 65702.748005 mpv vo s...

...`mpv $f' plays fine, using software decoding. VO: [gpu] 960x540 yuv420p Adding `--vo=vdpau' gives VO: [vdpau] 960x540 yuv420p [vo/vdpau] Compositing window manager detected. Assuming timing info is inaccurate. Playback is fine, still software decoding. `--vo=vdpau --hwdec=vdpau' uses hardware decoding: Using hardware decoding (vdpau). VO: [vdpau] 960x540 vdpau[yuv420p] [vo/vdpau] Compositing window manager detected. Assuming timing info is inaccurate. The video plays, CPU load is less (my aim), but there's ‘tearing’ of the picture as if...

https://bugs.freedesktop.org/show_bug.cgi?id=111213 Bug ID: 111213 Summary: VA-API nouveau SIGSEGV and asserts Product: Mesa Version: 19.0 Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/nouveau Assignee: nouveau at

...u at lists.freedesktop.org Reporter: dominik at greysector.net QA Contact: xorg-team at lists.x.org When trying to play a video using mpv with VDPAU hardware acceleration on a GF108M/GeForce GT 525M (second GPU in Optimus configuration on this machine): DRI_PRIME=1 mpv -vo=gpu --hwdec=vdpau any_h264_video.mp4 Xorg starts using 100% of one core and the following can be seen in the logs: May 21 14:41:21 kernel: nouveau 0000:01:00.0: fifo: read fault at 0000000000 engine 00 [PGRAPH] client 00 [] reason 02 [PAGE_NOT_PRESENT] on channel 2 [003fc12000 Xorg[2935]] May 21 14:41:21 ker...

https://bugs.freedesktop.org/show_bug.cgi?id=89969 Bug ID: 89969 Summary: vaDriverInit fails with gallium/nouveau driver Product: Mesa Version: git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/nouveau Assignee: nouveau at