Comment 11 for bug 897792

Revision history for this message
In , Hans (hans-redhat-bugs) wrote :

Hi,

Hmm, I'm getting the feeling that this may be related to bug 625852, which is also happening since F-12. I have 2 theories now:

1) Something changed in userspace and is probing the usb device in a way it does
   not like. I believe this is what is happening in your case. You write that
   simply opening /dev/bus/usb/001/002 is enough to re-enable the led.

   Can you try turning the led off by running a webcam using app and then do:
udevadm trigger --action=add

   And see if this turns the led on again?

2) USB autosuspend is somehow causing this issue. Can you try booting
   with usbcore.autosuspend=-1 added your kernel cmdline and see if that helps?

Thanks,

Hans