Unable to boot Android-x86 on kvm with cirrus driver

[Philip Z]

I'm new to Android-x86. I just downloaded android-x86_64-7.1-rc1.iso and tried it on kvm. 
If I didn't use '-vga' option, which I believe uses cirrus by default, I can't boot android-x86.
The following error occurs when I boot with debug option.
 
The same thing goes if I use '-vga cirrus'.
 
If I changed the option to '-vga std', it worked. For example,
$ qemu-system-x86_64 -enable-kvm -m 4G -hda android.img -vga std
 
I have to use cirrus driver on some platform so I want to get it work with '-vga cirrus'.
How do I get around the errors? Any debugging tips?
 
Thanks!

[Philip Z]

I'm new to Android-x86. I just downloaded android-x86_64-7.1-rc1.iso and tried it on kvm. 

If I didn't use '-vga' option, which I believe uses cirrus by default, I can't boot android-x86.

The following error occurs when I boot with debug option.

The same thing goes if I use '-vga cirrus'.

If I changed the option to '-vga std', it worked. For example,

$ qemu-system-x86_64 -enable-kvm -m 4G -hda android.img -vga std

I have to use cirrus driver on some platform so I want to get it work with '-vga cirrus'.

How do I get around the errors and boot with cirrus? Any debugging tips?

Thanks!

Philip

[Chih-Wei Huang]

I think cirrus doesn't support 32bpp which
is required now.

You can workaround it by add HWACCEL=0 to
cmdline. But a lot of apps won't work in this mode.

Use '-vga std' is recommended.


--
Chih-Wei
Android-x86 project
http://www.android-x86.org

[Philip Z]

Got it. Thanks!

Philip

[Philip Z]

BTW, do you know if I can hack some Android configuration so that it uses 16bpp rather than 32bpp so that cirrus driver can support it?
Thanks!

[Chih-Wei Huang]

2017-07-12 15:02 GMT+08:00 Philip Z <zz...@cornell.edu>:
> BTW, do you know if I can hack some Android configuration so that it uses 16bpp rather than 32bpp so that cirrus driver can support it?

I have already told you.

[Philip Z]

I mean without HWACCEL=0 because that makes the system slow.

[Chih-Wei Huang]

2017-07-12 23:49 GMT+08:00 Philip Z <zz...@cornell.edu>:
> I mean without HWACCEL=0 because that makes the system slow.

This is the only workaround.
Or you need to hack mesa swrast
to support 16bpp.