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Possible regression with VGA and resolutions in Windows 10?
From: |
Aaron Lauterer |
Subject: |
Possible regression with VGA and resolutions in Windows 10? |
Date: |
Thu, 23 Jul 2020 16:24:06 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.0.1 |
Hi all,
I think we have a regression introduced in commit 0221d73ce6.
Once I start a Windows 10 VM (build 18363) with `-device VGA` I have only the
following resolutions to choose from instead of the much longer list:
1920x1080
1024x768
800x600
Linux guests work fine.
qemu-system-x86_64 \
-name windows-resolution-test \
-smp '2,sockets=1,cores=2,maxcpus=2' \
-nodefaults \
-cpu host,+kvm_pv_eoi,+kvm_pv_unhalt \
-m 3072 \
-device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' \
-device 'usb-tablet,id=tablet,bus=uhci.0,port=1' \
-device 'VGA,id=vga,vgamem_mb=32,bus=pci.0,addr=0x2' \
-device 'virtio-scsi-pci,id=scsihw0,bus=pci.0,addr=0x5' \
-drive
'file=/dev/zvol/rpool/data/vm-102-disk-0,if=none,id=drive-scsi0,discard=on,format=raw,cache=none,aio=native,detect-zeroes=unmap'
\
-device
'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,rotation_rate=1,bootindex=100'
\
-machine pc,accel=kvm
I have not yet gotten around to bisect the SeaBIOS repository to know exactly
which commit there is causing it.
If this is better handled at the SeaBIOS mailing list, let me know.
Aaron
- Possible regression with VGA and resolutions in Windows 10?,
Aaron Lauterer <=