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[Bug 1395271] [NEW] USB 1 and USB 2 scanners fail when connected to USB 3 ports

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1395271@xxxxxxxxxxxxxxxxxx>
Date: Wed, 26 Nov 2014 23:21:00 -0000
Reply-to: Bug 1395271 <1395271@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

You have been subscribed to a public bug:

Plugging a number of USB 1 and USB 2 scanners into the USB 2 port of
various computers works as expected. Moving the scanners to the USB 3
port of the same computers causes the scanners to stop working. The
scanners are recognized by sane-find-scanner, but fail to scan. The
difference appears to be the USB 2 ports using ehci-pci and the USB 3
ports using xhci_hcd.

The problem is becoming more serious as new computers come out with only
USB 3 ports and no option to disable xhci_hcd in the bios.

Is there a workaround or fix for this problem?

** Affects: sane-backends (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
-- 
USB 1 and USB 2 scanners fail when connected to USB 3 ports
https://bugs.launchpad.net/bugs/1395271
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