[Spice-devel] Windows QXL driver - low pixel depth, low resolution, laggard mouse

--[ UxBoD ]-- uxbod at splatnix.net
Thu Jun 16 07:01:25 PDT 2011


----- Original Message -----
> On Thu, 2011-06-16 at 15:50 +0200, Alon Levy wrote:
> > On Thu, Jun 16, 2011 at 01:42:07AM -0400, John A. Sullivan III
> > wrote:
> > > On Thu, 2011-06-16 at 01:34 +0200, Alon Levy wrote:
> > > > On Wed, Jun 15, 2011 at 09:35:57PM +0100, Damien Churchill
> > > > wrote:
> > > > > On 15 June 2011 21:11, --[ UxBoD ]-- <uxbod at splatnix.net>
> > > > > wrote:
> > > > > > ----- Original Message -----
> > > > > >> Hello, all.  We have recently jumped into SPICE with both
> > > > > >> hands and
> > > > > >> feet
> > > > > >> as we are intrigued with the possibilities.  But, we've
> > > > > >> hit a few
> > > > > >> rocks
> > > > > >> along the way!
> > > > > >>
> > > > > >> The immediate problems with our two test Windows
> > > > > >> installations
> > > > > >> (Windows7
> > > > > >> and Windows Server 2008 running as KVM guests in Fedora
> > > > > >> 15) using the
> > > > > >> QXL driver is that the pixel depth appears to be 4-bits,
> > > > > >> the only
> > > > > >> available resolutions are 640x480 and 800x600, and the
> > > > > >> mouse is
> > > > > >> unusably
> > > > > >> lagged.
> > > > <snip>> >
> > > > > > Alon (Redhat Dev) has a patch for QEMU which should
> > > > > > hopefully fix the 4bpp issue but the binary and necessary
> > > > > > libraries he sent me would not run successfully on our
> > > > > > server. It was execute and then hang and eventually time
> > > > > > out. Perhaps, as discussed, we could build from source
> > > > > > though I wonder why that patch has not been fully
> > > > > > committed yet?
> > > > > > --
> > > > > 
> > > > > Is the patch available to try anywhere? I'd like to give it a
> > > > > test and
> > > > > see what happens.
> > > > 
> > > > attached.
> > > <snip>
> > > 
> > > Argh!!! I recompiled the rpms from the srpms after applying the
> > > patch
> > > and thought for sure our woes would be ended! Alas, perhaps we
> > > have 8
> > > bit color now and we still have a maximum resolution of 800x600
> > > :(
> > > 
> > > What next?
> > > 
> <snip>
> > I've installed yesterday on windows 2008 R2 successfully, the only
> > real difference from win7/winxp is that the drivers have to be
> > signed, and either cross signed by microsoft or you need to set
> > the vm to accept self signed drivers.
> > 
> > You can easily tell the driver is not really loaded by looking at
> > devmgmt.msc (device manager), the driver will have an exclamation
> > mark overlayed on the icon.
> > 
> > I'm not sure if the self signed drivers are on the site, but I'm
> > attaching self signed drivers (these are development only - based
> > on unpushed patches).
> > 
> Strange, I wonder what is different between your environment and
> mine.
> I replaced the rpms on the Fedora host.  Was I supposed to do
> anything
> with the Windows drivers? The patched seemed only for qemu.  I'll
> give
> these a try and see if it changes anything.
> 
> I should mentioned that, before Windows presented its "Press Ctl Alt
> Del
> to login" screen, the color was brilliant for the Windows logo.  It
> changed when it got to the login screen.  Thanks - John
> 
> 

I believe the Windows logo you see within the boot process is low resolution anyway.
-- 
Thanks, Phil


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