e03f549b3e
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_get_flat_panel_info): New function. (grub_vbe_bios_get_ddc_capabilities): Likewise. (grub_vbe_bios_read_edid): Likewise. (grub_vbe_edid_checksum): Likewise. (grub_vbe_get_preferred_mode): Likewise. Try EDID followed by the Flat Panel extension, in line with the X.org VESA driver. (grub_video_vbe_setup): When the mode is "auto", try to get the preferred mode from VBE, and use the largest mode that is no larger than the preferred mode (some BIOSes expose a preferred mode that is not in their mode list!). If this fails, fall back to 640x480 as a safe conservative choice. * include/grub/i386/pc/vbe.h (struct grub_vbe_flat_panel_info): New structure. (struct grub_vbe_edid_info): Likewise. (grub_vbe_bios_get_flat_panel_info): Add prototype. (grub_vbe_bios_get_ddc_capabilities): Likewise. (grub_vbe_bios_read_edid): Likewise. * util/grub.d/00_header.in (GRUB_GFXMODE): Default to "auto". This is more appropriate on a wider range of platforms than 640x480.
25 lines
1.1 KiB
Text
25 lines
1.1 KiB
Text
2010-12-14 Colin Watson <cjwatson@ubuntu.com>
|
|
|
|
Preferred resolution detection for VBE.
|
|
|
|
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_get_flat_panel_info):
|
|
New function.
|
|
(grub_vbe_bios_get_ddc_capabilities): Likewise.
|
|
(grub_vbe_bios_read_edid): Likewise.
|
|
(grub_vbe_edid_checksum): Likewise.
|
|
(grub_vbe_get_preferred_mode): Likewise. Try EDID followed by the
|
|
Flat Panel extension, in line with the X.org VESA driver.
|
|
(grub_video_vbe_setup): When the mode is "auto", try to get the
|
|
preferred mode from VBE, and use the largest mode that is no larger
|
|
than the preferred mode (some BIOSes expose a preferred mode that is
|
|
not in their mode list!). If this fails, fall back to 640x480 as a
|
|
safe conservative choice.
|
|
* include/grub/i386/pc/vbe.h (struct grub_vbe_flat_panel_info): New
|
|
structure.
|
|
(struct grub_vbe_edid_info): Likewise.
|
|
(grub_vbe_bios_get_flat_panel_info): Add prototype.
|
|
(grub_vbe_bios_get_ddc_capabilities): Likewise.
|
|
(grub_vbe_bios_read_edid): Likewise.
|
|
|
|
* util/grub.d/00_header.in (GRUB_GFXMODE): Default to "auto". This
|
|
is more appropriate on a wider range of platforms than 640x480.
|