Re: Status of Regression/Bug 13407 adb trackpad disappears aftersuspend to ram?

From: Martin Wache
Date: Mon Sep 28 2009 - 00:31:17 EST


Benjamin Herrenschmidt schrieb:
On Sun, 2009-09-27 at 20:10 +0200, Martin Wache wrote:
Hi,

Rafael J. Wysocki schrieb:

A patch has been submitted which is reported to fix the issue:

http://patchwork.kernel.org/patch/49462/

Please test it as requested.

Thank you for the info :-)

Unfortunately, applying the patch on top of 2.6.31 doesn't improve the situation for me, rather the opposite. Under X I get no reaction on any keypress on the keyboard or movement on the trackpad. Even plugging in an USB mouse and keyboard didn't help, the usb port doesn't provide an power to the mouse (at least the led in the mouse doesn't light up).
Before X starts up the keyboard does respond, also the trackpad seems to be detected. Doing a suspend/resume cycle doesn't change the situation.

That looks like a different problem than the one I fixed. Is there an
email thread or a bugzilla entry that describes the setup precisely, the
symptoms, kernel logs etc... ?

The USB not working was indeed a separate issue, I striped down my kernel config before building 2.6.31 and striped it down too much. After fixing the config the usb is again working.

What I don't really understand is that now after I fixed the usb kernel config and recompiled also the adb keyboard and trackpad are working again.
To test the original issue, I did several suspend/resume cycles and my trackpad is still working :-).
Without the patch the trackpad was almost never working after a suspend/resume cycle, so the adb trackpad issue seems to be fixed with your patch.
Thank you very much :-)

Bye,

Martin
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