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[Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x1
From: |
James Harvey |
Subject: |
[Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10 |
Date: |
Fri, 20 Sep 2019 02:14:41 -0000 |
Yes, I first replicated the issue by removing "max_outputs=1", then
patched spice server, and the issue no longer happens.
QEMU 4.1.0 still changed something. If I understand correctly, it's now
in some circumstances saying there are 0 monitors, even though there's a
graphic card?
Fixing this in spice to effectively ignore being told 0, and go with 1
instead, gets around the bug, but still makes me think there's something
wrong in QEMU 4.1.0. Granted, perhaps with this spice fix, it might not
cause any negative effects anymore.
But, I don't know if there are any third party applications especially
on Windows that don't use upstream spice-server and might be thrown off
by this in a similar way. So, I wonder if QEMU 4.1.0 should still have
something fixed.
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https://bugs.launchpad.net/bugs/1843151
Title:
Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10
Status in QEMU:
New
Bug description:
Host is Arch Linux. linux 5.2.13, qemu 4.1.0. virt-viewer 8.0.
Guest is Arch Linux Sept 2019 ISO. linux 5.2.11.
Have replicated this both on a system using amdgpu and one using
integrated ASPEED graphics.
Downgrading from 4.1.0 to 4.0.0 works as usual, see:
https://www.youtube.com/watch?v=NyMdcYwOCvY
Going back to 4.1.0 reproduces, see:
https://www.youtube.com/watch?v=H3nGG2Mk6i0
4.1.0 displays fine until KMS kicks in.
Using 4.1.0 with virtio-vga doesn't cause this.
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- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, (continued)
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, James Harvey, 2019/09/12
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, James Harvey, 2019/09/12
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, Dr. David Alan Gilbert, 2019/09/12
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, James Harvey, 2019/09/12
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, Dr. David Alan Gilbert, 2019/09/12
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, James Harvey, 2019/09/12
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, James Harvey, 2019/09/12
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, Dr. David Alan Gilbert, 2019/09/12
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, James Harvey, 2019/09/12
- [Qemu-devel] [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, Dr. David Alan Gilbert, 2019/09/19
- [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10,
James Harvey <=
- [Bug 1843151] Re: Regression: QEMU 4.1.0 qxl and KMS resoluiton only 4x10, Dr. David Alan Gilbert, 2019/09/20