lkml.org 
[lkml]   [2009]   [Oct]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [REGRESSION] "bind" a device to a driver doesn't not work anymore
On Thu, Oct 15, 2009 at 11:13:37AM -0700, Dmitry Torokhov wrote:
> On Thu, Oct 15, 2009 at 07:24:16PM +0200, Éric Piel wrote:
> > Op 14-10-09 04:05, Dmitry Torokhov schreef:
> > > On Tue, Oct 13, 2009 at 11:52:19AM +0200, Éric Piel wrote:
> > >>> Could you please try and let me know if unloading at suspend and
> > >>> reloading after resume atkbd and/or psmouse drivers and leaving i8042
> > >>> alone "fixes" the issue?
> > >>>
> > >> Unloading the modules before suspend and reloading them after works
> > >> around the issue, indeed.
> > >>
> > >
> > > Do both of them need to be reloaded? Or only one (my guess psmouse) is
> > > enough. Hmm, this is HP laptop so it most likely has Synaptics touchpad.
> > > I wonder what happens if you force it to bare PS/2 protocol (or maybe
> > > Intellimouse)... Try adding "option psmouse proto=imps" and
> > > "option psmouse proto=bare" and suspend/resume.
> > Sorry for taking some time to answer back. The keyboard fails to come
> > back only on the first suspend-resume (the next suspends, the keyboard
> > comes back fine). So I need to reboot the computer for every single test.
> >
> > So far, what I can tell is that once the keyboard is not working
> > anymore, just unloading and reloading atkbd fixes the problem. Attached
> > is a dmesg log from just before supsending to after resume. The keyboard
> > doesn't work anymore but the touchpad do. The lines at the very end of
> > the log correspond to keypresses: although the keyboard doesn't work,
> > there are still 3 interrupt per keypress generated:
> >
> > drivers/input/serio/i8042.c: 1c <- i8042 (interrupt, 0, 1) [320670]
> > drivers/input/serio/i8042.c: f0 <- i8042 (interrupt, 0, 1) [320751]
> > drivers/input/serio/i8042.c: 1c <- i8042 (interrupt, 0, 1) [320753]
> >
> > That's all the date for now. I'll test your questions about psmouse
> > later on, and report back.
> >
>
> It lokks like the keyboard controller switched from translated to
> non-translated mode: '1c' is make code and 'f0 1c' is break (aka
> release) code.
>
> Could you tell me how the keyboard indentified (in dmesg) after fresh
> boot and after you do the bind/unbind trick on the older kernel?
>

BTW, do you have i8042.reset parameyer on your command line? What
happens if you remove it?

--
Dmitry
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2009-10-15 20:37    [W:0.197 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site