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[PATCH] vesafb: Fix incorrect logo colors in x86_64

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Bugzilla Bug 6299:

A pixel size of 8 bits produces wrong logo colors in x86_64.

The driver has 2 methods for setting the color map, using the protected
mode interface provided by the video BIOS and directly writing to the VGA
registers.  The former is not supported in x86_64 and the latter is enabled
only in i386.

Fix by enabling the latter method in x86_64 only if supported by the BIOS.
If both methods are unsupported, change the visual of vesafb to
STATIC_PSEUDOCOLOR.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Antonino A. Daplas
2006-04-10 22:55:48 -07:00
committed by Linus Torvalds
parent ac50ab3e45
commit 89ec4c238e
4 changed files with 33 additions and 7 deletions
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3
include/linux/screen_info.h
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@@ -41,7 +41,8 @@ struct screen_info {
u16 vesapm_off; /* 0x30 */
u16 pages; /* 0x32 */
u16 vesa_attributes; /* 0x34 */
/* 0x36 -- 0x3f reserved for future expansion */
u32 capabilities; /* 0x36 */
/* 0x3a -- 0x3f reserved for future expansion */
};
extern struct screen_info screen_info;