Package: qemu-system-x86
Version: 1:2.1+dfsg-11
Severity: normal
Tags: upstream
Dear Maintainer,
I quite regularly install some qemu VMs by just doing something like this:
qemu-system-x86_64 --enable-kvm -drive file=disk.img -cdrom cd.iso
When cd.iso contains a Debian install cd then I encounter this strange
behaviour:
- qemu window openens
- bios screen is shown for half a second
- debian install cd boot screen is shown
- qemu window starts endlessly toggling between 640x480 and 720x400
One can then double click the window bar to hide the content, then this
flickering
stops, but now the content is scaled and the window will never change its size
when the guest resolution changes.
I was able to observe this with following CDs:
debian-6.0.2.1-i386-CD-1.iso
debian-7.3.0-i386-CD-1.iso
debian-jessie-DI-rc1-i386-CD-1.iso
Also a upstream git qemu-v2.2.0 shows this behaviour.
Here are some things probably also need to be met:
- Using KDE as DE.
I tried also starting it in an empty X server with just a xterm, there it
does
not flicker. With a instance of twm in this X server it is also not shown.
But by starting an instance of kwin in this empty X server it happens too.
- When adding at the command line to boot from network (-boot n) some time pass
by not finding the network server - then falling back to the CD and then the
flickering is not shown too.
- I observed a movement of the qemu window in the first second, like it is
created
without window borders and aligned to one screen border, and then the border
is added and therefore the window is moved.
Adding "-no-frame" avoids the flickering too, but then there is no frame ...
- By default it seems that qemu uses the SDL output (-display sdl)
Kind regards,
Bernhard
-- System Information:
Debian Release: 8.0
APT prefers stable-updates
APT policy: (990, 'stable-updates'), (500, 'proposed-updates'), (500,
'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.16.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages qemu-system-x86 depends on:
ii ipxe-qemu 1.0.0+git-20141004.86285d1-1
ii libaio1 0.3.110-1
ii libasound2 1.0.28-1
ii libbluetooth3 5.23-2+b1
ii libbrlapi0.6 5.2~20141018-5
ii libc6 2.19-18
ii libcurl3-gnutls 7.38.0-4+deb8u2
ii libfdt1 1.4.0+dfsg-1
ii libgcc1 1:4.9.2-10
ii libglib2.0-0 2.42.1-1
ii libgnutls-deb0-28 3.3.8-6+deb8u1
ii libiscsi2 1.12.0-2
ii libjpeg62-turbo 1:1.3.1-12
ii libncurses5 5.9+20140913-1+b1
ii libpixman-1-0 0.32.6-3
ii libpng12-0 1.2.50-2+b2
ii libpulse0 5.0-13
ii librados2 0.80.7-2
ii librbd1 0.80.7-2
ii libsasl2-2 2.1.26.dfsg1-13
ii libsdl1.2debian 1.2.15-10+b1
ii libseccomp2 2.1.1-1
ii libspice-server1 0.12.5-1+b1
ii libssh2-1 1.4.3-4.1
ii libtinfo5 5.9+20140913-1+b1
ii libusb-1.0-0 2:1.0.19-1
ii libusbredirparser1 0.7-1
ii libuuid1 2.25.2-6
ii libvdeplug2 2.3.2+r586-1
ii libx11-6 2:1.6.2-3
ii libxen-4.4 4.4.1-9
ii libxenstore3.0 4.4.1-9
ii qemu-system-common 1:2.1+dfsg-11
ii seabios 1.7.5-1
ii zlib1g 1:1.2.8.dfsg-2+b1
Versions of packages qemu-system-x86 recommends:
ii qemu-utils 1:2.1+dfsg-11
Versions of packages qemu-system-x86 suggests:
ii kmod 18-3
ii ovmf 0~20131112.2590861a-3
ii samba 2:4.1.17+dfsg-2
pn sgabios <none>
pn vde2 <none>
-- no debconf information
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