[Plex86-devel] [Bug #3537] PS/2 mouse "skipping" problem

[nobody]

=================== BUG #3537: FULL BUG SNAPSHOT ===================
http://savannah.nongnu.org/bugs/?func=detailbug&bug_id=3537&group_id=869

Submitted by: RvnPhnx                 Project: Plex86 Virtual Machine       
Submitted on: Sat 05/10/2003 at 19:52
Category:  None                       Severity:  3                          
Bug Group:  None                      Resolution:  None                     
Assigned to:  RvnPhnx                 Status:  Open                         

Summary:  PS/2 mouse "skipping" problem

Original Submission:  It has occurred to me the possible reason for a bug that 
I've noticed in the PS/2 mouse device emulation.  Often times instead of 
notifying the guest machine of an overflow in the PS/2 mouse's X or Y count, 
the mouse will instead move backwards.  I suspect that the PS/2 protocol may 
not be followed exactly somehow--leading to the skipping.  This may or may not 
be related to a bug that makes the mouse pointer in the guest wrap when the 
host should on VNC and remote X11 connections.  I have yet to see if this 
problem also afflicts the Bochs PS/2 implementation.

In particular, I think that the sign bits and the overflow bits in the PS/2 
mouse data may not be set correctly.  Also, now that I've learned a bit more 
about the PS/2 data packet, it may be possible to do Intellimouse (R) type 
mouse support soon.



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