[Bug 261440] vt newcons breaks suspend/resume for all graphics cards that do not use KMS drivers

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261440

--- Comment #3 from Stefan B. <sblachmann@gmail.com> ---
Well, when using vt in text mode, it does make a difference if vesa.ko is
loaded or not.

Because, if it is loaded, then the console display reappears showing the
shutdown proceeding when pressing the power button after resuming with a dark
screen instead of X Window.
If it is not loaded, there is no displaying of the shutdown proceeds, screen
stays dark until power off.

If vt is in graphics mode, screen always stays dark until power off, then there
is no difference of having vesa loaded or not.

(Just tested this using SiS and S3 graphics cards. More tests with other
graphics cards follow.)

BTW, for sc, vesa has to be loaded for successful resume, *except* for Nvidia
cards.
As said, I'll be doing more tests later to understand the patterns, will report
back.

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