@Michael, I tried gutsy, but it doesn't run on my notebook.
@SilverLoz, Try one of the newer kernel, if your comfortable compiling a
new one.
@All, Seems even more confusion on how to disable it, based in the posts
above.
What I can confirm is:
Ubuntu: Feisty (7.04)
Scanners:
CanonScan N1240U
Acer 640BT
Kernel:
2.6.20-16-generic (Ubunu standard Feisty kernel)
2.6.20 (Ubuntu source)
2.6.22 (kernel.org source)
Results:
The Caconscan would scan black pages, with no activity on the scanner itself
with CONFIG_USB_SUSPEND set.
The Caconscan would scan black pages, with activity on the scanner itself with
CONFIG_USB_SUSPEND not set.
I never tried the Acer with CONFIG_USB_SUSPEND set, but it does scan
with it disabled, however, the lamp is always on and I cannot turn the
scanner off.
I haven't tried any of the "autosuspend=0" suggestions, because of the
uncertainty regarding proper config.
Conclusion:
1. Disable CONFIG_USB_SUSPEND until more stable and documented if having a
scanner operational is important
2. CONFIG_USB_SUSPEND is not the issue, at least not with Canon scanners.
Something else is wrong here, but it is being overshadowed by the
CONFIG_USB_SUSPEND issue.
Re-compiling the kernel is easy, what is not easy is how to resolve the
2nd issue. I don't have any clue where to begin, and project pages on
sane and plustek looks fairly quite, unless I'm looking in the wrong
place.
Any ideas?
--
some usb_devices fault if usb_suspend enabled
https://bugs.launchpad.net/bugs/85488
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