[Spice-devel] Fedora 25 guest no changing resolution correctly

[Javier Celaya]

Hi Christophe
El lun, 23-10-2017 a las 14:29 +0200, Christophe Fergeau escribió:
> Hey,
> 
> On Mon, Oct 23, 2017 at 09:51:51AM +0200, Javier Celaya wrote:
> > Hello list,
> > 
> > Recently, we updated the Qemu version being used by flexVDI. We
> > were
> > using a pre-3.3 QXL device, so it did not provide the
> > client_monitors_config callback and that message was getting
> > through to
> > the VDAgent, which in turn changed the resolution of the guest.
> > This
> > was working flawlessly both on Windows and Linux guests.
> > 
> > With the new version (we are using qemu v2.6.0 from RHEV 7.3 and
> > spice-
> > server v0.12.8 from RHEL 7.4, with a couple of small changes), the
> > client_monitors_config callback gets called. This works correctly
> > on
> > Windows guests, but on Linux guests (tested mainly with Fedora 25,
> > stock vdagent and QXL Xorg driver, which are quite up to date) the
> > following happens when a resolution change is requested by the
> > client:
> > - The new resolution is detected by the Xorg server, it can be seen
> > with xrandr.
> > - If the old resolution was a custom one, the display changes to
> > the
> > new one.
> > - If the old resolution was a standard one (like 640x480, 1024x768,
> > 1920x1080, etc), the display DOES NOT change to the new one.
> > I have read quickly through the list archive but found nothing
> > about
> > this problem. Is there something we are missing? Something else we
> > should be upgrading too?
> 
> With client-monitors-config, the qxl-kms driver is going to notify of
> resolution changes through a hotplug-mode-update drm property. It
> then
> needs cooperation from the window manager to react to this property
> change.
> See https://bugzilla.gnome.org/show_bug.cgi?id=711216
> and https://git.gnome.org/browse/mutter/commit/?id=9575132
> How are you triggering the resolution change to a standard
> resolution?

Just changing the client's window size. I am testing with spicy. For
instance, if I go fullscreen the guest will change to my monitor's
resolution; then, it will not change again if I change the window
resolution. However, I can see the current client's window size with
xrandr. If I manually change to that resolution (xrandr --output blah
--mode foo), then everything starts working again and the guest
resolution changes with the window size.
> Which window manager/desktop environment are you running in the VM?

I am running KDE. In fact, I am testing with the Fedora 25 KDE Live
iso, so you can test it too if you want. I am going to try with
different environments, thanks for the advice.
> Christophe
-- 

 

 







  
    
      
      
        
          
        
      
      
      
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