Stefan Sperling writes: > On Wed, Dec 17, 2014 at 12:39:15PM +0100, Marko Cupać wrote: >> Hi, >> >> I have occasional device timeout from urtwn on my ThinkPad T440 with usb >> wifi dongle. >> >> All I get in dmesg is: >> urtwn0: device timeout > > Yes, these devices tend to run hot and stop working. I have a > urtwn(4) device that has the same problem. No fix is known. > > It's possible that powersaving is required for these devices to work > reliably, which I don't think our urtwn(4) driver has support for. > Someone with the necessary patience could try adding support for it. > The Linux rtlwifi driver seems to support powersaving for this device.
If it's a heat thing, they sure seem to heat up faster with xhci enabled. I get an occasional timeout without xhci and about one every 5 to 10 minutes with it enabled. --
