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Add troubleshooting for hardware video decoding on chromium based browsers (intel) #680

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Add troubleshooting for hardware video decoding on chromium based browsers (intel) #680

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16 changes: 16 additions & 0 deletions src/config/graphical-session/graphics-drivers/intel.md
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Expand Up @@ -46,3 +46,19 @@ For newer Intel chipsets, the [DDX](../xorg.md#ddx) drivers may interfere with
correct operation. This is characterized by graphical acceleration not working
and general graphical instability. If this is the case, try removing all
`xf86-video-*` packages.

On chromium based browsers, even with flags `--enable-features=VaapiVideoDecoder
--disable-features=UseChromeOSDirectVideoDecoder`, and hardware acceleration
reported to be enabled in `chrome://gpu` you might be able to see that the
iGPU is not being selected/used with "VDA Error 4" on `chrome://media-internals`
and `VpxVideoDecoder` is being selected instead. In that case, you have to build
the `intel-media-driver` package with `nonfree` option from the
[void-packages](https://github.com/void-linux/void-packages) source repository.
Check the Media panel in the inspector while playing a video on the web
to confirm that hardware decoding is working.

Note that for video with less resolution than 480p on youtube you may not see use of
hardware acceleration and CPU might bump the load instead, to fix this you might
be interested in using
[enhanced-h264ify](https://chrome.google.com/webstore/detail/enhanced-h264ify/omkfmpieigblcllmkgbflkikinpkodlk)
extension, for disabling VPx/AV1 video codecs.