Hi,
On Wed, Sep 8, 2010 at 2:39 PM, Brendan Trotter<address@hidden>
wrote:
GRUB and Linux use "video mode numbers" to request a video mode.
These video mode numbers can be different for different video
cards. Early versions of VBE did define some standard mode
numbers, but these became obsolete in VBE version 2.0 (back in
1994). Software written after 1994 shouldn't rely on these
obsolete video mode numbers. For example, if you're lucky mode
0x118 might be 1024*768 with 24-BPP, but nothing guarantees that
anymore, and it could easily be any other video mode. There's
also no guarantee that the the video card supports the video mode
(e.g. a lot of video cards only support 32-BPP video modes and
don't support any 24-BPP video modes; and some only support
24-BPP video modes and not 32-BPP video modes; and the same is
true for 15-BPP vs. 16-BPP).
My apologies.
It seems GRUB2 has improved a lot, and doesn't rely on the obsolete
"standard video mode numbers" anymore. Except for problems caused
by video modes that are supported by the video card but not
supported by the monitor; it's mostly only a problem with Linux
itself now.
Cheers,
Brendan
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