Hi,
I use the Dell Vostro 3750 laptop in which I experienced strange freezes during
startup.
(The problem was initially described in
http://lists.debian.org/debian-user/2011/10/msg02496.html )
After some experiments I've found, that the problem is caused by USB devices connected to one of two USB 3.0 capable jacks in the laptop (if the same device is connected to the USB 2 jack or USB/SATA
combo jack the machine boots correctly).
If I connect the device to one of USB 3.0 jacks after machine is started, I can
see the following messages in the /var/log/messages:
Oct 30 20:27:43 WZLap kernel: [ 603.363412] usb 2-1: new high speed USB device
number 2 using xhci_hcd
Oct 30 20:27:43 WZLap kernel: [ 603.382254] xhci_hcd 0000:03:00.0: WARN: short
transfer on control ep
Oct 30 20:27:43 WZLap kernel: [ 603.382752] xhci_hcd 0000:03:00.0: WARN: short
transfer on control ep
Oct 30 20:27:43 WZLap kernel: [ 603.383236] xhci_hcd 0000:03:00.0: WARN: short
transfer on control ep
Oct 30 20:27:43 WZLap kernel: [ 603.383378] usb 2-1: New USB device found, idVe
ndor=12d1, idProduct=1446
and then a lot of messages:
Oct 30 20:27:48 WZLap kernel: [ 609.270026] xhci_hcd 0000:03:00.0: WARN:
Stalled endpoint
Oct 30 20:27:48 WZLap kernel: [ 609.274685] xhci_hcd 0000:03:00.0: WARN:
Stalled endpoint
Oct 30 20:27:48 WZLap kernel: [ 609.281701] xhci_hcd 0000:03:00.0: WARN:
Stalled endpoint
Oct 30 20:27:48 WZLap kernel: [ 609.285046] xhci_hcd 0000:03:00.0: WARN:
Stalled endpoint
Even though the device seems to work correctly.
--
Regards,
Wojtek Zabołotny
--
To UNSUBSCRIBE, email to [email protected]
with a subject of "unsubscribe". Trouble? Contact [email protected]
Archive: http://lists.debian.org/[email protected]
