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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 08:50:01 +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

On 05/25/11 16:33, Alon Levy wrote:
On Wed, May 25, 2011 at 04:06:03PM +0200, Gerd Hoffmann wrote:
On 05/25/11 15:53, Alon Levy wrote:
Without this windows xp guests set a 4 bits per pixel graphics mode.

Hmm?  Never seen this.  Details please.

When I start a windows xp guest with -vga qxl and no qxl driver installed I get
a 16 color (4 bits) display mode, you notice it straight away because it's just 
ugly.

Which qemu version?  Which seabios & vgabios version?

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

I havn't seen this for a *long* time. Last time was a year or so back, while shaking out vgabios issues. Especially I've never seen that with any qxl/spice stuff in upstream qemu. Thats why I'm wondering where this comes from?

cheers,
   Gerd




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