jitao shi has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/33571 )
Change subject: google/kukui: turn off backlight before config display ......................................................................
Patch Set 2:
(2 comments)
https://review.coreboot.org/c/coreboot/+/33571/2//COMMIT_MSG Commit Message:
https://review.coreboot.org/c/coreboot/+/33571/2//COMMIT_MSG@7 PS2, Line 7: google/kukui: turn off backlight before config display
… before display configuration
I will fix it next patchset
https://review.coreboot.org/c/coreboot/+/33571/2//COMMIT_MSG@10 PS2, Line 10: Avoid flash white screen when configuring : display.
When does this happen? During payload or OS time? coreboot should be so fast, that the display won’t […]
If the backlight on before panel power on, there will be some noise or write on screen.
So we put the backlight enable after the display configuration ready.
For example AUO panel. Auo panel will flash write screen.