No MMAL Vout on Bullseye

[NickCis]

It seems that in Raspberry PI OS 11 (Bullseye) the raspberry pi vlc package of this repository 3.0.16 is superseded by the 3.0.17 of the Raspian repository:

# apt-cache madison vlc
       vlc | 3.0.17.4-0+deb11u1+rpi1 | http://raspbian.raspberrypi.org/raspbian bullseye/main armhf Packages
       vlc | 3.0.16-1+rpi1+rpt2 | http://archive.raspberrypi.org/debian bullseye/main armhf Packages

I usually think that having an updated version is a positive thing, the problem with this is that the Raspian package doesn't have raspberry pi patches in order to provide the mmal_vout.

Are there any instructions in order how to bring changes from the upstream repository (debian or raspian) in order to have the 3.0.17.4 with raspberry pi patches applied?.

[XECDesign]

There’s a build that’s waiting for a little bit of internal testing. It should be public some time next week.

[NickCis]

@XECDesign Thanks for the quick reply, is there a way to access that source code or build?. I don't mind building it from source and testing it out.

Anyway, I will try to apply the mmal patches of this repo to the source of the raspbian (vía the apt source get).

Thanks again :)

[jc-kynesim]

It is worth pointing out here that Bullseye by default runs KMS for display which grabs the HVS output hardware and that prevents mmal_vout from working. If you have your setup loading FKMS (fake)KMS then you do have mmal_vout i.e. if you have a bullseye that mmal_vout works on currently then it should continue to do so but if it doesn't then upgrading won't make it work. The new version gives you drm_vout which is intended to do much the same job as mmal_vout but has limitations imposed by KMS/DRM so some things like rotation and compositing over X don't work (but it does give you HDR if you like that sort of thing)

[KenT2]

That's great are the command line options for drm_vout in the same place that the mmal ones were?

Will compositing over X ever work?

[KenT2]

One other question, will fake KMS always be in Bullseye and any future RPiOS version.

[popcornmix]

One other question, will fake KMS always be in Bullseye and any future RPiOS version.

Always in bullseye. But it is deprecated so may be dropped in a future major release update.

[NickCis]

The new version gives you drm_vout which is intended to do much the same job as mmal_vout but has limitations imposed by KMS/DRM so some things like rotation and compositing over X don't work (but it does give you HDR if you like that sort of thing)

I'm currently using the mmal output with the fkms overlay. I don't run X server, just a cvlc service that plays a Fullscreen video (I'm using the raspberry pi in order to loop videos connected to a tv screen). I thought the recommended way to do it was with the mmal output, should I switch to the drm+kms? Will this allow me to select hdmi outputs as the mmal does? If I use the kms overlay I won't be able to set resolutions using the tvservice command or am I mistaken? In that case, how the video output should be configured?

Thanks for the answers :)

[popcornmix]

Using kms driver and drm_vout output is the recommended setting for fullscreen, but you should wait for the updated version (@XECDesign said it will be out this week).

[XECDesign]

A new build has just gone out. There should be another build in the not too distant future with some bug fixes.

[parheliamm]

A new build has just gone out. There should be another build in the not too distant future with some bug fixes.

When can I receive the new release build ?