Comment 2 for bug 1658634

Revision history for this message
Kai Cong (phenix1108) wrote : Re: [Bug 1658634] Re: Can't get correct display with latest QEMU and OVMF BIOS

Splash screen and UEFI shell were displayed correctly. Grub2 menu and
Ubuntu login screen also appeared, however the display didn't seem right. I
got very blurry output.

[image: Inline image 1]

With QEMU 2.7.0 and the same OVMF.fd, everything works well.

Please let me know if anything is not clear.

Thanks,
Kai

On Mon, Jan 23, 2017 at 4:50 AM, Laszlo Ersek (Red Hat) <email address hidden>
wrote:

> (1) What phase of the guest do you get invalid video output in? Do you
> see the TianoCore splash screen? Does the grub2 menu appear?
>
> (2) I cannot reproduce the issue (with a different guest OS anyway); I
> just tried QEMU (at d1c82f7cc344) and OVMF (built from edk2 at
> 7cf59c854f35), with stdvga; this combo works fine.
>
> (3) Can you bisect QEMU from 2.7 through 2.8, using the same OVMF
> binary?
>
> (4) Side point: please *never* use "-bios OVMF.fd"; use two pflash chips
> instead. Libvirt (strongly recommended) will do this for you.
>
> Thanks.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1658634
>
> Title:
> Can't get correct display with latest QEMU and OVMF BIOS
>
> Status in QEMU:
> New
>
> Bug description:
> I tried to install a Ubuntu 16.04.1 Desktop 64bits with latest QEMU and
> OVMF UEFI BIOS, however I can't get correct display output with default vga
> configuration (-vga std). However, qemu works with a couple of different
> configurations:
> 1. "-vga cirrus" + "-bios OVMF.fd": works
> 2. "-vga std" + non-UEFI bios: works
>
> The same error with QEMU 2.8.0 release. Everything works well on
> 2.7.0/1.
>
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>