On Mon, Oct 27, 2025 at 11:01:55AM -0500, Mario Limonciello wrote: > On 10/27/25 7:35 AM, Thomas Zimmermann wrote: > > > > - a very simple progress bar, which can be driven through sysfs; > > > > Once you have options to control these settings from user space, you > > should do it in user space entirely. As Maxime suggested, please improve > > plymouth for anything with animation. > > > > > > - a static image (optional). > > > > Board vendors often provide an image, see /sys/firmware/acpi/bgrt/. This > > is a candidate for display, or the penguin or a custom image. Please > > make it configurable by Kconfig. Again, if you need policy and > > heuristics for deciding what to display, you better do this in user > > space. > > I'd actually argue that the static image from BGRT should be the preferred > priority. This can make for a nice hand off to Plymouth. > > The (UEFI) BIOS already will show this image as soon as the GOP driver is > loaded. Bootloaders like GRUB by default will avoid showing anything or > will overwrite with the exact same image in the same location. This can let > the kernel do the same, and then the moment Plymouth takes over it could do > the same.
And BGRT isn't typically found on embedded systems at all, so I'm not sure it's a sensible default, let alone a priority. At most a possible fallback. Maxime
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