Bug#899384: vlc: Hardware acceleration fails after upgrade to 3.0.2

[Sebastian Ramacher]

Control: tags -1 + moreinfo

Hi

On 2018-05-23 18:29:41, Antoni Marcinek wrote:
> Package: src:vlc
> Version: 3.0.2-0+deb9u1
> Severity: important
> 
> Dear Maintainer,
> 
> After recent upgrade to 3.0.2 when I try to increase the speed above
> certain level (16x), the video is frozen. The same procedure on
> the same movie file worked without problem up to 64x before the upgrade.
> Looks like there is some problem with hardware acceleration, which is
> set to AUTO in the VLC config - I am getting the following error in the
> console:
> 
> libva info: VA-API version 0.39.4
> libva info: va_getDriverName() returns 0
> libva info: Trying to open
> /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
> libva info: Found init function __vaDriverInit_0_39
> libva info: va_openDriver() returns 0
> [00007f249c016240] vaapi generic error: profile(3) is not supported

Not much vlc can do about that. If your hardware doesn't support the codec, then
it can only fallback to software decoding.

> Failed to open VDPAU backend libvdpau_i965.so: cannot open shared object file: No such file or directory
> 
> I am doing this on a laptop with integrated Intel graphics + Optimus
> nvidia card. What I understand is happening it tries to run vaapi
> (fails) and then falls back to vdpau, which also fails. The vdpau
> probably would require to run with nvidia card, but unfortunately
> > optirun vlc
> is unable to open the Qt interface and falls back to console interface
> which is pretty useless (at least for my case).
> 
> Maybe the new VLC version requires newer libva - libva2, which provides
> VA-API 1.0.0?
> 
> If the problem with VA-API cannot be solved, then maybe it is easier to
> make VLC Qt interface run with optirun? While it would not bring the
> user experience back to what was before upgrade to 3.0.2 (hardware
> acceleration out-of-the-box on Intel graphics), it would still be
> acceptable.

Are you able to use any other Qt-based applications when started with optirun?

> ii  libavcodec57                         10:3.3.7-dmo1+deb9u1
> ii  libavformat57                        10:3.3.7-dmo1+deb9u1
> ii  libavutil55                          10:3.3.7-dmo1+deb9u1

This combination of packages is not supported by us. Please replace all dmo
packages with the packages provided by Debian.

Cheers
-- 
Sebastian Ramacher
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