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[Qemu-devel] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device vir
From: |
Thomas Huth |
Subject: |
[Qemu-devel] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected |
Date: |
Wed, 22 Mar 2017 10:11:54 -0000 |
Hi! I think unless you use "-vga none" or "-nodefaults", QEMU will always start
your guest with a VGA card by default, so if you add an additional "--device
virtio-gpu-pci", you'll end up with a guest that has two video cards, one VGA
and one virtio-gpu.
Also there is a known bug in the SLOF version that has been shipped with QEMU
2.8, which causes trouble with virtio-gpu:
http://git.qemu-project.org/?p=SLOF.git;a=commitdiff;h=38bf852e73ce6f0ac801dfe8ef1545c4cd0b5ddb
Please try again with the latest release candidate of QEMU 2.9, it should be
fixed there.
(But please note that SLOF does not contain a driver for virtio-gpu, so you
won't see any output from the firmware when starting your guest ... i.e. you'll
just see some output once Linux has been started)
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https://bugs.launchpad.net/bugs/1674925
Title:
Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected
Status in QEMU:
New
Bug description:
Hi,
i did many tests on qemu 2.8 on my BE machines and i found an issue that i
think was need to be reported
Test Machines BE 970MP
if i setup qemu with
qemu-system-ppc64 -M 1024 --display sdl(or gtk),gl=on --device virtio-
gpu-pci,virgl --enable-kvm and so and so
result is doubled window one is vga other is virtio-gpu-pci without
any start of the VM . pratically i dont have any output of openbios
and on the virtual serial output
the same issue i found is if i select:
qemu-system-ppc64 -M 1024 --display gtk(or sdl) --device virtio-gpu-pci
--enable-kvm and so and so
i had been try to change all the -M types of all kind of pseries without any
positive result.
Ciao
Luigi
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- [Qemu-devel] [Bug 1674925] [NEW] Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected, luigiburdo, 2017/03/22
- [Qemu-devel] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected,
Thomas Huth <=
- [Qemu-devel] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected, luigiburdo, 2017/03/22
- [Qemu-devel] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected, luigiburdo, 2017/03/22
- Re: [Qemu-devel] [Qemu-ppc] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected, luigiburdo, 2017/03/22
- Re: [Qemu-devel] [Qemu-ppc] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected, luigiburdo, 2017/03/22
- Re: [Qemu-devel] [Qemu-ppc] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected, luigiburdo, 2017/03/22
- Re: [Qemu-devel] [Qemu-ppc] [Bug 1674925] Re: Qemu PPC64 kvm no display if --device virtio-gpu-pci is selected, luigiburdo, 2017/03/24