Subject: Re: Keyboard and mouse problems on current
To: D. Sean Davidson <>
From: Simon Burge <>
List: port-pmax
Date: 08/07/1997 09:11:36
On Wed, 06 Aug 1997 12:54:30 -0400  "D. Sean Davidson" wrote:

> Has anyone else been having problems with the X server and current.
> I've had to drop back to about July 25'th code base to not have the
> mouse and keyboard input screw up on me all time.  If I type too fast,
> which means more than a single character every half second, keys get
> missed, the shift key stays locked after I release it, and the mouse
> buttons sometimes think they are still pressed.

What machine is this on?  On the faster machines (the /50's and /60's)
with scc's, a delay loop for letting the serial chip settle is too
slow, at least for serial consoles.  Look at sys/arch/pmax/tc/scc.c,
there's two DELAY(2)'s (around lines 1161 and 1336) that you can change
to DELAY(4).  I'm looking at a proper fix to this at the moment, but
haven't finished yet.