Bug 135239

Summary:	kernel needs i8042.nomux boot option to correctly detect Synaptics TouchPad
Product:	[openSUSE] SUSE LINUX 10.0	Reporter:	Philip Tuckey <philtuckey>
Component:	Kernel	Assignee:	Vojtech Pavlik <vojtech>
Status:	RESOLVED FIXED	QA Contact:	E-mail List <qa-bugs>
Severity:	Normal
Priority:	P5 - None
Version:	Final
Target Milestone:	---
Hardware:	i686
OS:	SuSE Linux 10.0
Whiteboard:
Found By:	Other	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Attachments:	boot.msg showing Synaptics touchpad detection boot.msg showing only generic PS/2 mouse detection Output of dmidecode Patch to add the S7010 to MUX blacklist

Description Philip Tuckey 2005-11-22 22:50:45 UTC

This is using kernel 2.6.13-15-default.
Without i8042.nomux, kernel detects only "PS/2 Generic Mouse on isa0060/serio4"
With i8042.nomux, kernel detects "SynPS/2 Synaptics TouchPad on isa0060/serio1", which then works fine with the Xorg synaptics driver. (This boot option also cures mouse synchronisation loss craziness when resuming from a suspend.)
Hardware is a Fujitsu-Siemens Lifebook S7010.
I will attach boot.msg files showing this behaviour.

Comment 1 Philip Tuckey 2005-11-22 22:56:21 UTC

Created attachment 58314 [details]
boot.msg showing Synaptics touchpad detection

Comment 2 Philip Tuckey 2005-11-22 22:58:20 UTC

Created attachment 58315 [details]
boot.msg showing only generic PS/2 mouse detection

Comment 5 Vojtech Pavlik 2005-11-23 10:08:45 UTC

Can you please provide the output of 'dmidecode' on your machine?
We need to add it to the list of machine (mostly from Fujitsu-Siemens) which
don't have working Active Multiplexing implementations, resulting in incorrect
detection of attached devices, and other troubles during operation (lost sync, etc).

Comment 6 Philip Tuckey 2005-11-23 14:05:04 UTC

Created attachment 58420 [details]
Output of dmidecode

Comment 7 Vojtech Pavlik 2005-11-23 15:51:00 UTC

Created attachment 58453 [details]
Patch to add the S7010 to MUX blacklist

This patch will fix the problem. It'll be added to
the upstream kernel soon.

Comment 8 Vojtech Pavlik 2005-11-23 15:52:03 UTC

Thanks for reporting the problem, and giving your dmidecode. The above
patch will be applied to upstream kernel soon. Until then, please use the
kernel option (add it to /boot/grub/menu.lst).

Comment 9 Philip Tuckey 2005-11-23 18:26:43 UTC

OK, thanks.