AFAIK the 5-byte protocol is optional, and there's also a 3-byte version of the IMPS/2 
protocol. The ps2mouse driver should autodetect whether the mouse supports IMPS/2 or 
regular PS/2, and use either. I tested it with both types of mice, and it even 
supports the scroll wheel :)

Two things to check... the ps2mouse driver will probe for a mouse in either 
/dev/input/mice or /dev/psaux. If it's detecting something in /dev/input/mice it will 
stay there without trying /dev/psaux. You can stick 
"--input-ps2mouse.device=/dev/psaux" on the command line to test this.

Another possibility is that your mouse device has read permissions but not write 
permissions. The ps2mouse driver will try to write to the port to initialize the mouse 
and autodetect the mouse type.

If this still fails, turn on "Event debugging" in your pgserver build and see if 
anything at all shows up when you move the mouse.

On Wed, May 22, 2002 at 06:57:06PM +0200, Arnd Bergmann wrote:
> On Wednesday 22 May 2002 16:44, Gray, Tim wrote:
> > Ok, i'm being a pest on the list today.. sorry all.
> > I cant seem to get the ps2 mouse driver for pgserver to work.  the kernel
> > has it compiled in, the /dev/psaux is alive and well and /dev/mosue is
> > symlinked to /dev/psaux just in case. I am using the TTY keyboard driver
> > also.. checking the /dev/psaux device it is sending the mouse data.
> >
> > any ideas?
> 
> I haven't used the driver, but it looks as if it only understands the 
> old three byte protocol that serial mice are using. Newer mice (in
> particular MS Intellimouse compatible scroll mice) default to the
> 'imps/2' protocol with 5 bytes.
> Use gpm to find out which protocol your mouse is using.
> 
> Arnd <><
> 
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