[meta-freescale] video playback failed with "app" user

[Alexander Shashkevych]

> Hi,
>     Thanks for you help!
>
>     I checked the /etc/group file, app user is a member of video group
> already...
>
> audio:x:29:root,users,pulse,media,guest
> gopher:x:30:
> dip:x:40:
> shadow:x:42:
> utmp:x:43:
> video:x:44:users,media,guest,app

please check your /etc/udev/rules.d/10-imx.rules file. It must contain
following lines:

KERNEL=="mxc_ipu", MODE="0666"
KERNEL=="mxc_vpu", MODE="0666"
SUBSYSTEM=="video", MODE="0660"
KERNEL=="fb[0-9]", MODE="0660", GROUP="video"
KERNEL=="gsl_kmod", MODE="0660", GROUP="video"
KERNEL=="galcore", MODE="0660", GROUP="video"

If there no such lines - add them and reboot device. This should fix
access rights to ipu, vpu and gpu devices.

Then add 'app' user to 'audio' group - this could be a reason why you
have no sound.

Alexander