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Old 09-27-2013, 09:03 AM   #1
LQ Newbie
Registered: Aug 2012
Location: Germany
Distribution: Slackware64-current, Slackware64 14.0
Posts: 28

Rep: Reputation: Disabled
Qemu on Slackware-current stays black

I recently ran into the problem that qemu on my slackware-current machine is not working properly.
When I try to start with:

qemu-kvm -cdrom opensuse.iso -m 4096 -smp 4
or with

qemu-system-x86_64 -cdrom opensuse.iso -enable-kvm -m 4096 -smp 4
Doesnt matter if I give it a less memory or less cpu power, its always the same.

The qemu window pops up but it stays black.
The intel-kvm and kvm modules are loaded.
This happens to me when using qemu:
  • 1.2 from alienbobs repo
  • 1.3 from slackys repo
  • 1.4 from slackbuilds 14.0 repo
  • 1.6 from slackbuilds current repo

With the versions 1.2, 1.3 and 1.4 I see the boot options from the iso, after selecting whatsoever it stays black.
My CPU is used a lot by qemu.

Does anybody know the problem here? I don't get it...
Even after building qemu without slackbuilds and my own options it won't work.
VirtualBox is working properly but I'd like to stay with qemu.

Old 09-27-2013, 09:30 AM   #2
Registered: Oct 2010
Location: Bowling Green, KY
Distribution: Slackware
Posts: 277

Rep: Reputation: 88
This is what I have been using for quite some time, still works for me:
export QEMU_AUDIO_DRV=sdl
qemu-kvm --enable-kvm -localtime -m 2G -sdl -display sdl -vga vmware -usbdevice tablet -smp 2 -net nic,model=virtio -net user -drive file=VirtualDrives/slackware-14.0.img,cache=none,if=ide &
your cdrom looks right, maybe add the -display or --enable-kvm?
1 members found this post helpful.
Old 09-27-2013, 09:31 AM   #3
Registered: Mar 2012
Distribution: Slackware, CentOS, OpenBSD, FreeBSD
Posts: 512

Rep: Reputation: Disabled
Your problem (or what I believe you describe as your problem) was previously discussed here:

Last edited by TommyC7; 09-27-2013 at 09:39 AM.
1 members found this post helpful.
Old 09-27-2013, 09:41 AM   #4
LQ Newbie
Registered: Aug 2012
Location: Germany
Distribution: Slackware64-current, Slackware64 14.0
Posts: 28

Original Poster
Rep: Reputation: Disabled
Thanks a lot! I did not try the -sdl option. It's working now!



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