From: Jonas Jelten <jelten@in.tum.de>
To: Benjamin Tissoires <benjamin.tissoires@gmail.com>,
Jiri Kosina <jkosina@suse.cz>
Cc: linux-input <linux-input@vger.kernel.org>
Subject: Re: HID: wacom: regression - system freezes when resuming from S3 suspend
Date: Wed, 24 Sep 2014 03:31:43 +0200 [thread overview]
Message-ID: <54221EFF.2060501@in.tum.de> (raw)
In-Reply-To: <CAN+gG=EfKHqo2++ejxJMqDxpOnav5qiVRJMRjXoDOrbWQVMnBQ@mail.gmail.com>
On 2014-09-22 17:52, Benjamin Tissoires wrote:
> On Mon, Sep 22, 2014 at 11:01 AM, Jonas Jelten <jelten@in.tum.de> wrote:
>> 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?
>
> Yes, this commit will fix your problem. It has just been delayed for
> 3.17.1 as mentioned by Jiri today.
>
Are you sure it's a good idea to let the kernel crash into 3.17.0 and
fix it later in stable? I suspect many X220t users could be affected.
Cheers,
Jonas
next prev parent reply other threads:[~2014-09-24 1:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-22 15:01 HID: wacom: regression - system freezes when resuming from S3 suspend Jonas Jelten
2014-09-22 15:52 ` Benjamin Tissoires
2014-09-24 1:31 ` Jonas Jelten [this message]
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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