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Diffstat (limited to 'mailinglist/output_launchpad/1884990')
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diff --git a/mailinglist/output_launchpad/1884990 b/mailinglist/output_launchpad/1884990 new file mode 100644 index 00000000..39d55db0 --- /dev/null +++ b/mailinglist/output_launchpad/1884990 @@ -0,0 +1,20 @@ +Cirrus graphics results in monochrome colour depth at 640x480 resolution + +Recently we upgraded to a distribution that bundled QEMU 4.2.0. We were previously running on QEMU 3.0.0. When booting Windows 10 VMs on x86_64, users experienced slow, monochrome graphics and the resolution was restricted to 640x480. Reverting to the prior vgabios-cirrus.bin from the prior source tarball remediated the issue. + +An example QEMU command line is below, if needed: +/bin/qemu-system-x86_64 -vnc 0.0.0.0:100 -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -machine pc-i440fx-4.2,accel=kvm,usb=off,dump-guest-core=off -cpu qemu64 -m 2048 -overcommit mem-lock=off -smp 1,sockets=1,cores=1,threads=1 -no-user-config -nodefaults -hda test.raw & + +This seems to be the following SeaBIOS bug: +https://<email address hidden>/msg12271.html + +Ah, great catch! Yes, that does appear to be the issue+fix. Is QEMU planning on integrating the next release of SeaBIOS or fixing this as a one-off for now? + +Yes, the maintainer will likely get the submodule updated before the next release. + +This issue is still marked as unresolved almost 6 months later. Has the submodule been updated and merged into QEMU yet? + +The patch mentioned by Philippe ("vga: fix cirrus bios") has been included into QEMU via this commit here: +https://git.qemu.org/?p=qemu.git;a=commitdiff;h=de15df5ead400b7c3d0cf2 +... which has been released as part of QEMU v5.1 already. Thus this issue should be fixed now. + |