I distinctly remember reading somewhere about boot video mode initialization
changes that were going into F30. IIRC, something about a "flicker-free"
effort that tries to switch the video mode only once, permanently, during
boot, and sticking with the same video mode all the way to the desktop.
I updated a system with an Nvidia chipset (an older Nvidia chipset that's
natively supported in Xorg without the need for a binary blob) that does not
use plymouth, it boots using an old-fashioned system console, until X
starts. In F29 its grub menu came up in standard VGA, then the mode quickly
changes to 132 column VGA for the duration of the boot, until the regular
1920x1080 desktop. The 132 column VGA apparently is a 1920x1080 bitmap, so I
pretty much had a single video mode change, already.
After updating to F30, this grub menu comes up unexpectedly in some video
mode that looks like a 640x480 VGA mode. The font looks even larger than a
normal 80 character font. After selecting the kernel, the boot starts, but
only after an unnervingly lengthy delay, I'd say about 5-10 seconds, with a
completely blank screen, before it switches to the same 132 column VGA, with
the boot proceeding normally. This gave me heart palpitations, briefly,
making me believe that the update bricked it.
I can't find anything in the release notes or the documentation, about
fiddling boot screen modes. Any pointers?
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