Public bug reported:
Binary package hint: grub2
Framebuffer with default gfxpayload=1024x768x16 results in white screen
on an old PCI "S3 Inc. 86c775/86c785 [Trio 64V2/DX or /GX] (rev 06)"
video card.
The dmesg had following lines:
Jun 5 07:42:20 mf kernel: [ 7.967371] Console: switching to colour frame
buffer device 80x30
Jun 5 07:42:20 mf kernel: [ 7.979176] fb0: S3 Trio64V2/DX on 0000:04:00.0,
1 MB RAM, 60 MHz MCLK
Jun 5 07:42:20 mf kernel: [ 8.001207] fb0: not enough framebuffer memory
(1200 kB requested , 1024 kB available)
I had to use gfxpayload=640x480x32 to get normal 80x24 resolution with the
following lines in the dmesg:
Jun 5 08:51:24 mf kernel: [ 1.683731] efifb: framebuffer at 0xa6d60, mapped
to 0xffff8800000a6d60, using 56k, total 64k
Jun 5 08:51:24 mf kernel: [ 1.683734] efifb: mode is 640x350x1,
linelength=80, pages=1
Jun 5 08:51:24 mf kernel: [ 1.683735] efifb: scrolling: redraw
Jun 5 08:51:24 mf kernel: [ 1.683738] efifb: Truecolor: size=8:8:8:8,
shift=24:16:8:0
Jun 5 08:51:24 mf kernel: [ 1.685028] Console: switching to colour frame
buffer device 80x43
Jun 5 08:51:24 mf kernel: [ 1.686260] fb0: EFI VGA frame buffer device
IMHO in case failures the framebuffer code should automatically fallback
to lower resolution/color depth mode.
The distribution is ubuntu 11.04, kernel 2.6.38-8-server amd64.
# dpkg -l | grep grub
ii grub-common 1.99~rc1-13ubuntu3 GRand
Unified Bootloader, version 2 (common files)
ii grub-gfxpayload-lists 0.2 GRUB
gfxpayload blacklist
ii grub-pc 1.99~rc1-13ubuntu3 GRand
Unified Bootloader, version 2 (PC/BIOS version)
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: natty
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https://bugs.launchpad.net/bugs/793030
Title:
Framebuffer with gfxpayload=1024x768x16 results in white screen on PCI
S3 card
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