[Bug 293747] x11/nvidia-driver-470: saver="green" not working

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=293747

Tomoaki AOKI <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected]

--- Comment #1 from Tomoaki AOKI <[email protected]> ---
(In reply to Craig Leres from comment #0)
Are you 100% sure you're booting via legacy BIOS (including mimic'ing by CSM on
UEFI) and your console driver is sc?

You can confirm by `sysctl kern.vty`.
If it shows "kern.vty: vt", you cannot use saver on console, as vt console
driver (100% unrelated with GPU, as simplest VGA is also affected!) lacks
mandatory functionalities for saver.

Note that sc driver (pure, legacy text mode) doesn't work on UEFI boot (which
doens't have legacy text mode), thus, forced to vt driver. See vt (4) manpage
and splash (4) manpage for details.

Relevant part of it is like below.


From vt (4):
LOADER TUNABLES
     These settings can be entered at the loader(8) prompt or in
     loader.conf(5).

     hw.vga.textmode
             Set to 1 to use virtual terminals in text mode instead of
             graphics mode on BIOS boot.  Features that require graphics mode,
             like loadable fonts, will be disabled.

             If a KMS driver is loaded the console will switch to, and remain
             in, graphics mode.  Moreover this tunable has no effect with
             UEFI(8) boot because it does not use VGA mode.

From splash (4):
     The screen saver will not run if the screen is not in text mode.

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