On Fri, May 13, 2022 at 12:54:12PM -0500, Glenn Washburn wrote:
> Signed-off-by: Glenn Washburn <developm...@efficientek.com>
I think this patch should be merged with patch #1.
> ---
> docs/grub.texi | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/docs/grub.texi b/docs/grub.texi
> index 5de94d062..178957096 100644
> --- a/docs/grub.texi
> +++ b/docs/grub.texi
> @@ -4049,6 +4049,7 @@ you forget a command, you can run the command
> @command{help}
> * distrust:: Remove a pubkey from trusted keys
> * drivemap:: Map a drive to another
> * echo:: Display a line of text
> +* efitextmode:: Set/Get text output mode resolution
> * eval:: Evaluate agruments as GRUB commands
> * export:: Export an environment variable
> * false:: Do nothing, unsuccessfully
> @@ -4505,6 +4506,31 @@ character will print that character.
> @end deffn
>
>
> +@node efitextmode
> +@subsection efitextmode
> +
> +@deffn Command efitextmode [min | max | mode_num]
s/mode_num/<mode_num>/?
After some thinking it seems to me this interface is not very convenient.
My guess is that the same mode may have different <mode_num> on
different implementations/platforms. I think EFI shell "mode" command
"col" "row" approach is more universal/reliable. Though I think it makes
sense to leave min and max as is...
> +When used with no arguments displays all available text output modes. The
> +set mode determines the columns and rows of the text display when in
> +text mode. An asterisk, @samp{*}, will be at the end of the line of the
> +currently set mode.
> +
> +Otherwise the command only takes a single parameter, which can be
> +@samp{min}, @samp{max}, or a mode number given by the listing when run
> +with no arguments. These arguments set the mode to the minimum, maximum,
> +and particular mode respectively.
> +
> +By default GRUB will start in whatever mode the EFI firmware defaults to.
> +There are firmwares known to set up the default mode such that output
> +behaves strangely, for example the cursor in the grub shell never reaches
> +the bottom of the screen or, when typing characters at the prompt,
> +characters from previous command output are overwritten. Setting the mode
> +may fix this.
> +
> +Note: This command is only available on EFI platforms.
s/./ and is similar to EFI shell "mode" command./?
Daniel
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