> Text mode seems to mostly work with OGD1 VGA BIOS version 0.1 tested on
> OGD1 hardware under Ubuntu 10.10, with a few caveats --
>
> VT100 frames (and others) don't seem to work (e.g., try aptitude on
> Debian-like systems, links, or anything else that uses them).
>
> Setting text modes other than 80x25 sometimes works, but some modes have
> apparently overstruck characters (i.e., produce obviously broken
> output), while others appear at a size other than reported by GRUB.
>
> To enter other text modes, I used the 'linux16' and 'init16' commands
> with GRUB2, enabling use of the kernel option 'vga=ask', which supplies
> a list containing something similar to this:
>
> 0 F00 80x25
> 1 F01 80x50
> 2 F02 80x43
> 3 F03 80x28
> 4 F05 80x30
> 5 F06 80x34
> 6 F07 80x60
>
> 80x25 and 80x30 produce nominal results, with 80x30 offering a larger
> console size. 80x50 appears to produce an 80x25 character grid, with
> larger characters overstruck with characters of a smaller size. 80x43
> and 80x60 produce a similar overstruck output, on 80x21 and 80x30 grids,
> respectively. 80x28 produces an 80x24 mode with no obvious overstrike;
> 80x34 produces an 80x29 mode with no obvious overstrike.
>
> In sum, the largest currently configurable grid via vga=ask appears to
> be 80x30; other sizes that seem to work with reasonably rendered
> characters are 80x25 (default), 80x24 (by selecting 80x28), and 80x29
> (by selecting 80x34).
>
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