"as unlikely as that may be":
I faced the issue as well, but was fixed by a third party update!

Byee

On 31 mar, 13:56, philhaz <phil...@gmail.com> wrote:
> Solved it!
>
> To anyone else experiencing the same issue (as unlikely as that may
> be) the solution is to add a timeout to the gpio_kp wakelock in "/
> drivers/input/misc/spio_matrix.c" (line 438). It hasn't stopped the
> button press, but it means that keypad input can't hold its wakelock
> forever, so the device will sleep again.
>
> On Mar 27, 11:42 am, philhaz <phil...@gmail.com> wrote:
>
>
>
>
>
>
>
> > My HTC Hero has developed a fault that makes the system believe the
> > trackball is being constantly held. I managed to block this at the OS
> > level, but it still seems to be affecting power management (the device
> > never goes to sleep, so battery life is abysmal). Reading the
> > explanation below suggests that I would have to block this input at
> > the keypad driver level to prevent keypad-scan wakelocks.
>
> >http://source.android.com/porting/power_management.html#androidPowerW...
>
> > Examining "/proc/wakelocks" shows that "gpio_kp" has significantly
> > larger "active since", "total time" "sleep time" and "max time" values
> > than anything else, which supports my assumption that it is the kepad
> > driver keeping the phone awake.
>
> > I have very little experience when it comes to C and Linux, so I'm
> > struggling to work out where and how to block these signals. I've
> > found the "input.h" file under "include/linux", and the problem key is
> > defined on line 393:
>
> > #define BTN_MOUSE               0x110
>
> > But here is where I come unstuck. Any help would be greatly
> > appreciated!

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