Comment 363 for bug 85488

Sitsofe Wheeler (sitsofe) wrote :

t2000kw:
Your Canon LiDE25 (it might have an additional name) is already on the list.

Anyone new to this bug:
It is important that people with a problem test that doing
sudo echo -1 > /sys/module/usbcore/parameters/autosuspend
on Gutsy (using a live CD (http://cdimage.ubuntu.com/daily-live/current/ ) if you don't want to install it) _actually solves_ the issue they are seeing. It's no good having your device added to the quirks list because it was broken in Feisty and then finding there some other problem was preventing your device from working (or worse, that a workaround had been added in Gutsy that means your device doesn't need blacklisting)...

I'm again going to appeal to someone for information on which types of USB device are worth testing and additionally what the signs are that a given device has failed? I work in a University and if someone can give me a reasonable subset (as time is limited and lots of this equipment will have to be borrowed) I will try and test all the devices I can lay may hands on. However I need to know what failure mode I'm looking for on a given device and how to activate it...

(Previous comment on this was https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/85488/comments/331 )