Re: [poky] [PATCH 2/2] psplash: start via udev if framebuffer device detected

On Thu, 2025-02-06 at 16:44 +0200, Mikko Rapeli via lists.yoctoproject.org wrote:
> psplash-start.service expected to find /dev/fb0 and failed
> if device was not found. This failure breaks systemd
> oeqa runtime test with "runqemu nographic". Starting
> psplash based on detected framebuffer device fixes systemd
> boot status and systemd oeqa runtime tests for qemu
> boots with and without graphics support.
> 
> Note that psplash-systemd.service still depends on /dev/fb0
> so startup with multiple framebuffer devices may not work
> correctly. I don't have devices with multiple framebuffer
> devices to test with.
> 
> On qemu machine with graphics, psplash displays yocto
> logo correctly and boot progress bar as well. Once boot completes
> to systemd "running" state, the logo is replaced by login prompt.
> On qemu machine without graphics, boot completes without psplash
> or failures and login over serial console works normally.
> Tested with genericarm64 machine poky-altcfg distro and core-image-base
> image on qemu. AMD kv260 tested as well but graphics stack is not yet
> working there so boot is similar to qemu without graphics.
> 
> Signed-off-by: Mikko Rapeli <[email protected]>
> ---
>  meta/recipes-core/psplash/files/fb.rules                 | 1 +
>  .../{psplash-start.service => [email protected]}    | 5 ++---
>  meta/recipes-core/psplash/files/psplash-systemd.service  | 8 +++-----
>  meta/recipes-core/psplash/psplash_git.bb                 | 9 ++++++---
>  4 files changed, 12 insertions(+), 11 deletions(-)
>  create mode 100644 meta/recipes-core/psplash/files/fb.rules
>  rename meta/recipes-core/psplash/files/{psplash-start.service => [email protected]} (84%)

Unfortunately I think this has introduced an intermittent QA test
failure showing up in meta-arm in particular. Examples:

https://autobuilder.yoctoproject.org/valkyrie/#/builders/75/builds/994/steps/22/logs/stdio
https://gitlab.com/jonmason00/meta-arm/-/jobs/9155263483

but it doesn't always fail. There were other failures if you look
through the meta-arm builds.

Cheers,

Richard