From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan De Luyck Subject: Re: [2.6.6] Synaptics driver is 'jumpy' Date: Mon, 17 May 2004 09:04:20 +0200 Sender: linux-kernel-owner@vger.kernel.org Message-ID: <200405170904.24471.lkml@kcore.org> References: <200405161222.48581.lkml@kcore.org> <200405170832.32256.lkml@kcore.org> <200405170142.41289.dtor_core@ameritech.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: <200405170142.41289.dtor_core@ameritech.net> Content-Disposition: inline To: linux-kernel@vger.kernel.org, acpi-devel@lists.sourceforge.net List-Id: linux-acpi@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Monday 17 May 2004 08:42, Dmitry Torokhov wrote: > On Monday 17 May 2004 01:32 am, Jan De Luyck wrote: > > On Sunday 16 May 2004 21:29, Dmitry Torokhov wrote: > > > On Sunday 16 May 2004 02:06 pm, Jan De Luyck wrote: > > > > On Sunday 16 May 2004 19:18, Dmitry Torokhov wrote: > > > > > Hmm.. there was no changes to PS/2 processing between 2.6.5 and > > > > > 2.6.6 except for some Logitech tweaking, but it should not affect > > > > > Synaptics handling in any way... > > > > > > > > > > Could you check if you still have DMA enabled on your disks, check > > > > > your time source (TSC, ACPI PM timer, etc) and probably boot with > > > > > acpi off? > > > > > > > > > > Thank you. > > > > > > > > Dmitry, > > > > > > > > Booting with acpi=off fixes the problem, although I'm curious to what > > > > the problem actually is. > > > > > > > > I've attached the dmesgs from 2.6.6, 2.6.5, and 2.6.6 with acpi=off. > > > > > > > > There is a line that says "Invalid control registers" that I wonder > > > > where it comes from, but you might see something more here than I do. > > > > > > It comes from speedstep-centrino module, could you please try booting > > > with ACPI but without speedstep-centrino loaded? Also, does it help if > > > you do not compile/ load ACPI battery module? > > > > Neither has any effect. > > > > I've also disabled CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI, figuring there > > might be some problem with that, but that doesn't change a thing. > > Perhaps we need to check with ACPI guys as it seems that you are affected > by this code and there were some changes to ACPI subsystem between 2.6.5 > and 2.6.6. Ok. Passing on to acpi-devel@lists.sourceforge.net. I've looked in the archives, and the problem looks very much like the one in this thread: http://sourceforge.net/mailarchive/forum.php?thread_id=4172848&forum_id=6102 And I've been noticing some keyboard glitches too, but these were to unfrequent, and usually occur only in one application (gaim) so I figured it might be a bug in gaim... guess not... Unfortunately, the hints in this thread don't help. I've browsed the input system FAQ, but no dice. The only thing that gives me a working synaptics touchpad is acpi=off. It worked fine with 2.6.5. Jan - -- Those who do things in a noble spirit of self-sacrifice are to be avoided at all costs. -- N. Alexander. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFAqGP3UQQOfidJUwQRAoXUAJ9nKMmfc6x72u3nJbJl+PZi3q0U3QCeO8N5 +KJEgm5HKq+gwOAh7A/Z3cA= =ONlN -----END PGP SIGNATURE-----