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From: Rick Vernam <rickv@hobi.com>
Date: Thu, 4 Aug 2011 12:17:36 -0500
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	<20110804160930.GD31693@redhat.com>
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Subject: Re: [Qemu-devel] -vga qxl
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To: "Daniel P. Berrange" <berrange@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>

On Thursday 04 August 2011 11:09:30 Daniel P. Berrange wrote:
> On Thu, Aug 04, 2011 at 11:03:10AM -0500, Rick Vernam wrote:
> > it seems that qxl is not working correctly with any of the 0.15 releases
> > thus far.  this includes qemu and qemu-kvm.
> > 
> > when I start qemu like so:
> > qemu-system-x86_64 -cpu host -enable-kvm -m 768 -usb -vga qxl -monitor
> > stdio I get a black screen.
> 
> I recently had black screen problems with QXL in 0.14.x that turned out to
> actually be a Seabios bug due to the default 64MB vram QXL has. I suspect
> this would hit 0.15.x builds too. If this is what you're hitting, then
> reducing the vram to 32MB is a temporary workaround that should help, eg
> 
>    -vga qxl -global qxl-vga.vram_size=33554432
That took care of the black screen.  Thanks.

> 
> > when I start with -vga std:
> > qemu-system-x86_64 -cpu host -enable-kvm -m 768 -usb -vga std -monitor
> > stdio I see the seabios screen, etc.
> > 
> > qemu has been configured like
> > ./configure --target-list=x86_64-softmmu --disable-curses  --disable-curl
> > -- audio-drv-list=alsa --audio-card-list=sb16,ac97,hda --disable-bluez
> > --enable- vhost-net --enable-spice
> > 
> > I've also configured with --disable-vnc and --disable-opengl with the
> > same results
> > 
> > Am I using this wrong, or is this a bug?
> 
> Regards,
> Daniel