Re: [Qemu-discuss] qemu 4.0, spice and dual monitor - SOLVED

[Frans de Boer]

On 10-09-19 09:53, Frans de Boer wrote:
> On 10-09-19 08:05, Brad Campbell wrote:
> > On 9/9/19 4:54 pm, Frans de Boer wrote:
> > > LS,
> > >
> > > After some months I needed Qemu with two displays again. The last 
> > > time I used it was with the latest 3.x version, without problem.
> > >
> > > You guessed already that it did not work anymore. So, I started to 
> > > add the "-display spice-app", changed to sockets after finding out 
> > > that communication via TCP did also not work anymore - only to find 
> > > out that this did not worked as well.
> > > In the passed I got two windows - remote viewer 1 and 2. Now I get 
> > > remote viewer 1 and 1, where the second one stays blank.
> > >
> > > Searched the internet for a full example qemu + spice, only to find 
> > > the configurations for qemu 3.x.
> > > I am using - just as before - OpenSuse Tumbleweed.
> > >
> > > Can anybody help with this?
> >
> >
> > This works for me on Qemu 4.1.0 (and current git head). It has worked 
> > unmodified since prior to v2.9.
> >
> > qemu -enable-kvm \
> >  -m 8192\
> >  -rtc base=localtime\
> >  -vga qxl\
> >  -device qxl\
> >  -net nic,model=virtio\
> >  -net tap,ifname=tap0,script=/etc/qemu-ifup,vhost=on\
> >  -usbdevice tablet\
> >  -spice port=5930,disable-ticketing\
> >  -device virtio-serial\
> >  -chardev spicevmc,id=vdagent,name=vdagent\
> >  -device virtserialport,chardev=vdagent,name=com.redhat.spice.0\
> >  -smp 3,maxcpus=3,cores=3,threads=1,sockets=1\
> >  -cpu qemu64,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time \
> >  -drive 
> > file=/server/VM/Cadbox.raw,if=virtio,aio=threads,format=raw,cache=unsafe 
> > -boot c \
> >  -drive 
> > file=/server/VM/Cadbox_swap.raw,if=virtio,aio=threads,format=raw,cache=unsafe 
> > \
> >
> > This gives me a Windows 7 guest with dual-head.
> >
> > Regards,
> > Brad
>
> Hi Brad,
>
> I notice the last backslash, which suggest there is more. But do you 
> daemonize, what command do you use to start the viewer and what viewer 
> are you using. Maybe there is my problem?
>
> --- Frans.
As it turns out, I used an image file for Win10, without the qxl drivers 
installed. Sometime ago I reused an older image, did all the updates but 
forgot to install the qxl driver. Ever since that time I used a single 
screen only. Needed now two screens again and finally found out why that 
did not work anymore.

--- Frans.