Re: [Qemu-devel] NT4 white mouse pointer using Cirrus 5446 driver under 0.9.1

[Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>]

Carlos A. M. dos Santos wrote:

>> Can anyone explain why this is happening? I can provide some debug
>> information if people can point me in the right direction.
> 
> It seems that you are running out of colormap entries. Try to use 16
> bits per pixel.


Hi Carlos,

Thanks for the hint. I've tried 8bpp and 16bpp, but it doesn't make a 
difference at all :(

After some experimentation here, I'm wondering if it is some kind of 
quirk within the NT4 driver related to alignment issues within the qemu 
code. The server for this qemu instance is running 32-bit Debian etch 
with 0.9.1, and I always see a white pointer whenever I connect. 
Interestingly though, I temporarily mapped the NT4 partition to my local 
laptop which is 64-bit Debian lenny with 0.9.1, and the mouse pointer 
appears correctly! So it appears that this could be a 32/64-bit related 
issue?

On another note, I have now managed to get the mouse pointer appearing 
correctly on the original 32-bit server by using the ReactOS video 
drivers here: http://www.bearwindows.boot-land.net/vbemp.htm instead of 
the Cirrus drivers. Thus I have a found a cure that works for me, but it 
looks like I am not the only person to experience this issue: 
http://www.debian-administration.org/users/ajt/weblog/115.


ATB,

Mark.

-- 
Mark Cave-Ayland
Sirius Corporation - The Open Source Experts
http://www.siriusit.co.uk
T: +44 870 608 0063