arm64: configs: beryllium_rk3588: enable deferred framebuffer takeover#3
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dongioia wants to merge 1 commit into
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arm64: configs: beryllium_rk3588: enable deferred framebuffer takeover#3dongioia wants to merge 1 commit into
dongioia wants to merge 1 commit into
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…EFERRED_TAKEOVER When the framebuffer console takes over the display immediately at boot, the screen briefly flashes to a text console before the user space splash (plymouth) starts. Deferring the takeover until the framebuffer console is actually written to gives a clean, flicker-free boot transition: the firmware/bootloader logo stays on screen until plymouth takes over, with no intermediate text-mode flash. Tested on Rock 5B+ with kernel 7.0-piotr-v9. Signed-off-by: Sav <62543096+dongioia@users.noreply.github.com>
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Summary
Enable
CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVERinberyllium_rk3588_defconfigfor a flicker-free boot transition.When the framebuffer console takes over the display immediately at boot, the screen briefly flashes to a text console before plymouth starts. Deferring the takeover until something is actually written to the framebuffer console keeps the bootloader/firmware logo on screen until plymouth picks up.
Status
beryllium_rk3588_defconfigand the locally maintainedrock5b_7.0-rc3.configon Rock 5B+. After runningmake olddefconfigof the locally maintained config on top of7.1-rc1, this is the single non-noise difference (everything else is compiler/version artifacts and new-symbol defaults handled automatically by olddefconfig).7.0-piotr-v9kernel build, but I have not formally validated the boot-splash behavior against an A/B comparison — I am proposing the change based on the documented intent of the option, not on a measured splash test. Happy to drop the PR if you want to validate first.Test plan
7.1-rc1with this configNotes for the broader config update
make savedefconfigon the currentberyllium_rk3588_defconfigshrinks it from 12669 lines to 3771 lines (proper upstream-style minimal defconfig, only deltas from kernel defaults). Not proposing that switch in this PR — full.configform has the advantage of pinning every option explicitly. Happy to revisit if you'd prefer the upstream-style minimal form.