Public bug reported:
I have an existing ATI 740G motherboard with an SB700 chipset. I had no
USB problems under 8.04.1, including the most recent kernel upgrades.
About 3 weeks ago I did a fresh install (and on a new hard-drive) of
8.10. Now I have lots of USB problems! I tried swapping drives and
booting back to 8.04.1 and the problems were gone so I'm assuming
there's an incompatibility with the 8.10 kernel and the SB700 chipset?
The specific problem is that most all USB devices fail to connect
initially, and after about 30 seconds they're recognized in OHCI mode
(USB 1.1, right?). In particular I'm having trouble with flash drives
and difference in read/write speed is obvious. My flash drives work
reliably in OHCI mode. Sometimes I'm able to get a drive recognized in
EHCI mode but then file transfers will fail a few seconds later.
Here's a sample of the 'dmesg' log:
[ 629.136534] usb 3-4: new high speed USB device using ehci_hcd and address 19
[ 639.568532] usb 3-4: device not accepting address 19, error -110
[ 639.972399] usb 1-2: new full speed USB device using ohci_hcd and address 5
[ 640.147273] usb 1-2: not running at top speed; connect to a high speed hub
[ 640.211078] usb 1-2: configuration #1 chosen from 1 choice
What other information do I need to provide to troubleshoot this?
Finally, the only other difference between the old and new installs is
that the old 8.04.1 install does not have the ATI proprietary video
driver whereas the 8.10 does.
** Affects: ubuntu
Importance: Undecided
Status: New
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8.10 unable to use EHCI-mode USB on ATI SB700
https://bugs.launchpad.net/bugs/313603
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