[SeaBIOS] [HELP] The program cause screen mess

eJim Lee lyjforjob at gmail.com
Mon Apr 20 15:52:59 CEST 2015

I retried vgabios with VGA(same as "-vga std") device and found the
problem again.
For wbc.exe, first screen looked nice when loading and screen mess
after about 15 seconds on second screen.

I used qemu 2.1.2 and my command line:
qemu-system-x86_64 \
    -m 1024 \
    -smp 1 \
    -net none \
    -enable-kvm \
    -hda /home/lyj/qemu/tmp/xp_noqxl.append  \
    -device VGA,romfile=/root/qemu/seabios/out/vgabios.bin \
    -spice port=5900,addr=,disable-ticketing,seamless-migration=on \
    -chardev stdio,id=debugcon \
    -device isa-debugcon,iobase=0x0402,chardev=debugcon \

seabios 1.8.1
kernel 3.10.67

eJim Lee

2015-04-19 23:31 GMT+08:00 Kevin O'Connor <kevin at koconnor.net>:
> On Sun, Apr 19, 2015 at 11:16:24PM +0800, eJim Lee wrote:
>> What is the commit you used?
>> I used rel-1.8.1 branch and customized bochs+VID1b36+DID0100 as the
>> qxl, cirrus and vmware vgabios.
>> I will try "-std vga" and recheck.
> I used qemu-2.2.0 and seabios from the master branch.  I used this
> command line:
> ../qemu/qemu-2.2.0/x86_64-softmmu/qemu-system-x86_64 -k en-us -snapshot -L test -chardev stdio,id=seabios -device isa-debugcon,iobase=0x402,chardev=seabios -m 512 -hda winxp-test-wbc -enable-kvm
> I suggest you find the simplist qemu command line that still causes
> screen corruption, compile seavgabios with debug level 2, and then
> post the full debug log.
> -Kevin

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