[Pkg-xen-devel] Bug#785132: Bug#785132: No screen refresh on Windows 8.1 with xen-hypervisor-4.5-amd64

[Ian Campbell]

On Tue, 2015-05-12 at 17:28 +0200, zer0 divide wrote:
> Package: xen-hypervisor-4.5-amd64_4.5.0-1_amd64.deb
> Version: 4.5.0-1
> 
> 
> Hi,
> 
> I use xen with sdl, not with vnc. When I boot on
> xen-hypervisor-4.4-amd64, everything is fine. With Debian or Windows
> 8.1 I have a good display,
> 
> But when I choose at boot, the xen-hypervisor-4.5-amd64, things go
> wrong.
> 
> If I launch a xen Debian, I get some blur effect on the display.
> And when I launch a xen Windows8.1, it is much worse. I only get a
> black screen, with some time, some screen update, BUT the system still
> boot normally. Indeed, I can access to the shared folders, and if I
> maximize and/or minimize the qemu window (on my Debian), I can get a
> «refresh of the display». Thereby I can then see the desktop, but
> after resizing the qemu window, the display is no more refreshed.
> 
> Thus, if I move the mouse, the pointer remains motionless, but if I
> maximize and/or minimize the qemu windows, I can see what happened
> really, and where is exactly the pointer.
> 
> I tried with a lot of kernel with xen-hypervisor-4.4-amd64, everything
> is ok, but I always get the same issue only with
> xen-hypervisor-4.5-amd64.

Are you also changing the qemu version you are using? qemu is
responsible for the majority of the graphics emulation here.

What does ldd /usr/bin/qemu-system-i386 say? How about /usr/sbin/xl?

> Here a configuration file use for Windows 8.1, that works fine with
> xen-hypervisor-4.4-amd64 but not with xen-hypervisor-4.5-amd64 :
> 
>       kernel = "/usr/lib/xen-4.5/boot/hvmloader"
>       builder='hvm'
>       memory = 2048
>       maxmem=3072
>       videoram=256
>       stdvga=1
>       vcpus=4
>       name = "Windows8.1"
>       vif = ['bridge=br0']
>       disk = ['file:/home/zer0/xen/xenwin8.1.img,hda,w']
>       acpi = 1
>       apic = 1
>       hpet=1
>       device_model_version = 'qemu-xen'
>       boot="c"
>       opengl=1
>       sdl=1
>       vnc=0
>       autoballoon=0
> 
> 
> Here the latest kernel with which I encounter the problem :
> 
> zer0 at debian:~$ uname -a 
> Linux debian 4.0.0-1-amd64 #1 SMP Debian 4.0.2-1 (2015-05-11) x86_64
> GNU/Linux
> 
> Or with 
> 
> zer0 at debian:~$ uname -a
> Linux debian 3.16.0-4-amd64 #1 SMP Debian 4.0.2-1 (2015-05-11) x86_64
> GNU/Linux
> 
> Thanks
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