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From: Jonas Jelten <jelten@in.tum.de>
To: linux-input@vger.kernel.org
Subject: HID: wacom: regression - system freezes when resuming from S3 suspend
Date: Mon, 22 Sep 2014 17:01:21 +0200	[thread overview]
Message-ID: <542039C1.1000605@in.tum.de> (raw)

Hi!

I encountered that my system freezes when resuming my Lenovo X220t with
integrated Wacom ISDv4 tablet from S3 suspend.

Currently running 3.17.0-rc6, I started to bisect and found that this
commit causes the issue:

commit 29b4739134c73a2873adec93346f09bb76d6a794
Author: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date:   Thu Jul 24 12:52:23 2014 -0700

    Input: wacom - switch from an USB driver to a HID driver


Running 3.17.0-rc6, right after boot, this shows up in the log:

[   25.843484] wacom 0003:056A:00E6.0001: usb_submit_urb(ctrl) failed: -1
[   25.843531] wacom 0003:056A:00E6.0001: timeout initializing reports
[   25.843886] wacom 0003:056A:00E6.0001: hidraw0: USB HID v1.11 Device
[Tablet ISD-V4] on usb-0000:00:1d.0-1.5/input0
[   25.846036] input: Wacom ISDv4 E6 Finger as
/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.1/0003:056A:00E6.0002/input/input18

When suspending, the screen goes off and about 8 seconds later, the
machine actually suspends.

Right after the (instant) resume, I can see the frame buffer I had when
suspending (X screen) for about 10 seconds. During that time, no sysrq
works. After this short period, the tty1-framebuffer appears, with
messed up linebreaks (no carriage returns occur any more), and the
capslock-led starts blinking. Sysrq keys still don't work. The system is
completely frozen.

Running the kernel from the bisected first good commit, the suspend is
faster (under 1 second) and the resume does not crash.

I just saw the "HID: wacom: fix timeout on probe for some wacoms" mail,
which probably has to do something with my problem.

Any ideas?

Cheers,
Jonas



             reply	other threads:[~2014-09-22 15:09 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-22 15:01 Jonas Jelten [this message]
2014-09-22 15:52 ` HID: wacom: regression - system freezes when resuming from S3 suspend Benjamin Tissoires
2014-09-24  1:31   ` Jonas Jelten
2014-09-24  8:34     ` Jiri Kosina
2014-09-24 19:27       ` Benjamin Tissoires
2014-09-25  0:20         ` Jonas Jelten
2014-09-25  0:24           ` Jiri Kosina
2014-10-10  1:27             ` Jonas Jelten

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