On 2014-09-22 17:52, Benjamin Tissoires wrote: > On Mon, Sep 22, 2014 at 11:01 AM, Jonas Jelten <jelten@xxxxxxxxx> 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@xxxxxxxxxx> >> 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 -- 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
