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Re: [Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB


From: Gerd Hoffmann
Subject: Re: [Qemu-devel] [RFC] reduce reported VGA framebuffer to 8 MiB
Date: Thu, 26 May 2011 09:44:38 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110419 Red Hat/3.1.10-1.el6_0 Thunderbird/3.1.10

  Hi,

Which qemu version?  Which seabios&  vgabios version?

qemu is the spice v36 branch with some unrelated patches.
seabios + vgabios upstream (seabios with 0x9000000 size hack).

I can retest with qemu upstream.

Hmm, same here.


Windows xp booting in 4bit usually indicates VBE doesn't work at
all, trying to enable vesafb in linux fails too then.

VBE is working fine - attached are the VBE calls made in three cases:
  * -vga std
  * -vga qxl with the normal 64 MB framebuffer.
  * -vga qxl with 8 MB framebuffer (reported) (it's identical to the first)

Note that this is all without the qxl driver working, but just with a windows 
xp install
with no qxl drivers.

Same here, works fine.  XP with SP3 btw, maybe this makes a difference.
Can you try to boot linux with vga=0x314?

cheers,
  Gerd




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