Possible regression 3.8.7 -> 3.9 with Dell touchpad

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

I found that after upgrading my kernel from 3.8.7 to 3.9 my touchpad only
works partly. By that I mean I can use the touchpad to move the cursor
around, but I cannot click with it by tapping. My machine is a Dell
Latitude E5530. Since it is 100% reproducible on my machine, I bisected it,
and found this commit:

commit 1302bac33d9e88cd43e482191a806998f3ed43cc
Author: Kevin Cernekee <cernekee@xxxxxxxxx>
Date:   Wed Feb 13 22:27:08 2013 -0800

    Input: ALPS - add support for "Rushmore" touchpads
    
    Rushmore touchpads are found on Dell E6230/E6430/E6530.  They use the V3
    protocol with slightly tweaked init sequences and report formats.
    
    The E7 report is 73 03 0a, and the EC report is 88 08 1d
    
    Credits: Emmanuel Thome reported the MT bitmap changes.
    
    Signed-off-by: Kevin Cernekee <cernekee@xxxxxxxxx>
    Tested-by: Dave Turvene <dturvene@xxxxxxxxxxxx>
    Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>

I did the bisection between 3.8.7 and 3.9, but also tried 3.9.1, it is bad
too. I also tried reverting that commit to make sure that it really is
what made my touchpad not working. The revert did fix my problem.

That's all I gathered so far, but I'd be happy to help further in any way
I can, just let me know.

Thanks,
Tibor
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Media Devel]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Linux Wireless Networking]     [Linux Omap]

  Powered by Linux