> This is what I understand that there are two libva in the snap: one is
default libva 2.6, anther is libva 2.14 build from path.

To me it is a riddle to me why libva 2.6 keeps showing up;
libva2=2.7.0-2 is being unstaged, that is clear. I wonder if the
dependencies being of older versions (the build log mentions libva-
dev=2.7.0-2 libva-drm2=2.7.0-2 libva-glx2=2.7.0-2 libva-wayland2=2.7.0-2
libva-x11-2=2.7.0-2) is causing this. The next step I should take is to
build them from source, newer versions too.

> From the source, it seems libva-dev is removed in default apt install.

Yes, this was a test reverted already.

> I still think the libva source build and install is not use the proper
default path, so the related app is unable to find driver from
/usr/local/xxxx, these apps only use /usr/xxxx lib search path.

It shouldn't matter where the libva is built, only where it is
installed, which is usr/lib/$ARCH_TRIPLET/. But if you want, you can
attach a diff, and I will perform a build for you in a temporary branch.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to chromium-browser in Ubuntu.
https://bugs.launchpad.net/bugs/1816497

Title:
  [snap] vaapi chromium no video hardware decoding

Status in chromium-browser package in Ubuntu:
  In Progress

Bug description:
  To test the snap with VA-API changes,

  1. Install the snap with

     sudo snap install --channel candidate/hwacc chromium

  2. snap run chromium --disable-features=UseChromeOSDirectVideoDecoder
  --enable-features=VaapiVideoDecoder

  3. Open a video, e.g. one from https://github.com/chthomos/video-
  media-samples

  4. Enter about:media-internals in the address bar and note what the
  page says for kVideoDecoderName.

  Please report

  - The value for kVideoDecoderName from step 4. Success is typically 
{Vaapi,VDA,Mojo}VideoDecoder while failure is {FFMpeg,Vpx}VideoDecoder;
    - If failed, the video used for testing, including codec and resolution if 
possible;
  - Distro version (if in doubt, `grep VERSION= /etc/os_release`);
  - GPU (if in doubt, attach the output of `lscpu`);
  - CPU generation (if in doubt, attach the output of `lscpu`).

  About the last point, it may be that unfortunately only those with
  newer generations of Intel CPUs will have luck with this, but it's
  still an uncertainty. So reports are highly welcome.

  ----------Original Bug report ---------

  Libva is no longer working for snap installed chromium 72.0.3626.109
  (Official Build) snap (64-bit)

  I followed this instruction
  sudo snap install --channel=candidate/vaapi chromium

  My amdgpu can use libva

  `vainfo: Driver version: Mesa Gallium driver 18.3.3 for AMD STONEY (DRM 
3.27.0, 4.20.0-10.1-liquorix-amd64, LLVM 7.0.1)
  vainfo: Supported profile and entrypoints
        VAProfileMPEG2Simple            :       VAEntrypointVLD
        VAProfileMPEG2Main              :       VAEntrypointVLD
        VAProfileVC1Simple              :       VAEntrypointVLD
        VAProfileVC1Main                :       VAEntrypointVLD
        VAProfileVC1Advanced            :       VAEntrypointVLD
        VAProfileH264ConstrainedBaseline:       VAEntrypointVLD
        VAProfileH264ConstrainedBaseline:       VAEntrypointEncSlice
        VAProfileH264Main               :       VAEntrypointVLD
        VAProfileH264Main               :       VAEntrypointEncSlice
        VAProfileH264High               :       VAEntrypointVLD
        VAProfileH264High               :       VAEntrypointEncSlice
        VAProfileHEVCMain               :       VAEntrypointVLD
        VAProfileHEVCMain10             :       VAEntrypointVLD
        VAProfileJPEGBaseline           :       VAEntrypointVLD
        VAProfileNone                   :       VAEntrypointVideoProc`

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