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SubjectRe: 2.6.25-rc5.git4 regression PS/2 mouse not detected/working
Hi Yanko,

On Wed, Apr 02, 2008 at 02:17:31AM +0300, Yanko Kaneti wrote:
> On Tue, 2008-03-18 at 11:54 -0400, Dmitry Torokhov wrote:
> > On Mon, Mar 17, 2008 at 08:58:43PM +0200, Yanko Kaneti wrote:
> > > On Mon, 2008-03-17 at 14:55 -0400, Dmitry Torokhov wrote:
> > > > On Mon, Mar 17, 2008 at 07:33:49PM +0200, Yanko Kaneti wrote:
> > > > >
> > > > > My PS/2 mouse stops being detected between kernels 2.6.24.3-12.fc8 and
> > > > > 2.6.25-0.121.rc5.git4.fc9 (which I believe do not carry any patches in
> > > > > that area). Its an ASUS P5E-VM DO motherboard , bios revision 0506. The
> > > > > PS/2 keyboard still works.
> > > > >
> > > > > Attached are both dmesg logs with i8042.debug=1, dmidecode, lspci -vvnn
> > > > > Tried i8042.noloop and both the mouse and keyboard stop working.
> > > > >
> > > >
> > > > Could you please send me dmesg from booting with i8042.noloop. I would
> > > > expect this option to help in your case so I am curious what went wrong.
> > >
> > > Attached
> > >
> >
> > Hmm, it looks the kernel does the right thing in case of i8042.noloop,
> > except that it does not work :(. Kernel triest to query the mouse but
> > it does not respond.
> >
> > Can you try taking contents of drivers/input/serio from 2.6.25 and
> > copy it in .24? It will most likely compile... If that works I'm
> > afraid I will ahve to ask you to do git biscect to find the offending
> > commit.
>
> Hey again,
>
> I finally did the bisecting. It found the cuplrit to be
>
> commit e3f37a54f690d3e64995ea7ecea08c5ab3070faf
> Author: Balaji Rao <balajirrao@gmail.com>
> Date: Wed Jan 30 13:30:03 2008 +0100
>
> x86: assign IRQs to HPET timers
>
>
> I tried reverting the change on the latest git with the attached patch
> and my mouse and keyboard appear to be detected and working fine now.
> The patch had to be stiched by hand and due to my lack of understanding
> of the code might be breaking random other stuff.
>
> FWIW the bios on this board has no knobs for HPET that I could find.
>
> What gives?
>

Hmm, this is wierd and really outsize of my knowledge... Lets try copying
Ingo, Thomas and Balaji, maybe they can help us out here.

Btw, what is in your /proc/interrupts?

--
Dmitry


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