Re: psmouse unusable in -mm series (was: 2.6.15-rc1-mm2 unsusable on DELL Inspiron 8200, 2.6.15-rc1 works fine)

[Ed Tomlinson <tomlins@cam.org>]

On Thursday 24 November 2005 03:41, Marc Koschewski wrote:
> * Ed Tomlinson <tomlins@cam.org> [2005-11-23 21:29:35 -0500]:
> 
> > On Wednesday 23 November 2005 14:57, Marc Koschewski wrote:
> > > * Dmitry Torokhov <dtor_core@ameritech.net> [2005-11-21 22:43:50 -0500]:
> > > 
> > > > On Sunday 20 November 2005 12:14, Marc Koschewski wrote:
> > > > > * Dmitry Torokhov <dtor_core@ameritech.net> [2005-11-18 22:07:19 -0500]:
> > > > > 
> > > > > > On Friday 18 November 2005 13:29, Marc Koschewski wrote:
> > > > > > > Nov 18 12:58:37 stiffy kernel: psmouse.c: Wheel Mouse at isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.
> > > > > > > 
> > > > > > > SOME STUFF MISSING? HUH?
> > > > > > > 
> > > > > > > Nov 18 13:03:14 stiffy kernel: psmouse.c: resync failed, issuing reconnect request
> > > > > > > 
> > > > > > 
> > > > > > Hm, this worries me a bit... Could you please try appying the patch
> > > > > > below to plain 2.6.15-rc1 and see if mouse starts misbehaving again?
> > > > > 
> > > > > Dmitry,
> > > > > 
> > > > > I applied the 5 patches to a plain 2.6.15-rc1. The mouse was well as if it was
> > > > > in an unpatched kernel. The problem just occured in 2.6.15-rc1-mmX.
> > > > > Plain 2.6.15-rc1 was fine before as well. So: actually no change.
> > > > > 
> > > > > Need any more info?
> > > > >
> > > > 
> > > > Marc,
> > > > 
> > > > Thank you for testing the patch. It proves that your mouse troubles
> > > > were not caused by the patch I made so I am very happy. "No change"
> > > > is the result I wanted to hear ;)
> > > > 
> > > 
> > > Dmitry,
> > > 
> > > there's a bug report filed against Debian's udev. You can read it here:
> > > 
> > > 	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340202
> > > 
> > > The bug report, however, states that the problem is caused by udev under
> > > all variants of kernel 2.6.15. I'm writing this mail while running
> > > 2.6.15-rc1 and the mouse definitely works. Do you have any other hint?
> > > Seems to me like the bug report is only half the truth... 
> > 
> > Marc,
> > 
> > Are you, by some slim chance, manually loading mousedev ( via /etc/modules) or
> > an init script?  If so your mouse will work.
> > 
> 
> Hi Ed,
> 
> yes, I do load mousedev as well as psmouse in /etc/modules due to udev
> no longer loading it. my problem, however, is _not_ that teh module
> doesn't get loaded. It's the mouse pointer jumping all over the screen.
> After some time (inactivity?) it calms down and is usable. Then, after
> some minutes it again jumps wild all over the place, seems to click
> stuff on it's own, and again calms down, ...
> 
> This problem shouldn't be udev related.
> 
> One note: the pointer seems to be in love with the corners of the
> screen. It always goes there when it goes wild... ;)

Marc,

It looks like you are seeing a different bug.  The one opened for debian user space
covers mousedev not being loaded if the kernel is 2.6.15, which leads to no /dev/input

Ed Tomlinson