[plug] Canon MP630 Multifunction report:

[thomas at maths.uwa.edu.au]

Hi Dave & Nigel,

The chmod of Nigel if done to

chmod 700 /usr/lib/cups/backend/hal

as well as

chmod 700 /usr/lib/cups/backend/usb

should solve the problem.

In my opinion it might be a clash between ubuntu and debian. The reasoning
is that I might have a root on debian but not on ubuntu and so the
permissions of hal get messed up.

Since currently I'm in the position that I can afford the hardware that
only works with ubuntu without having to go jump through all the hoops
(mixing stable/testing/unstable debian), I cannot test my hypothesis but
it would be nice to know, since it would point out a bug in the
communication between hal and kernel... (in the long run this might be of
no importance since udev is going to be more important than hal, but never
mind).

Cheers,

Thomas
> Hi Dave,
>
> On Thu, Jul 09, 2009 at 06:33:53PM +0800, David Dartnall wrote:
>>
>> Printer State: Idle - Unable to open device
>
>> "hal:///org/freedesktop/Hal/devices/usb_device_4a9_172e_12CEC8_if1_printer_noserial":
>>
>> Permission denied
>>
>> There is no such location on my computer!
>>
>> If this is only a permissions problem, how is it resolved?
>
> I had a similar problem with an Epson multifunction back with
> Ubuntu Gutsy. I found doing a
>
> chmod 700 /usr/lib/cups/backend/hal
>
> fixed the problem.
>
> However that file is set at 755 on my installation of Jaunty and
> I don't see why making it executable by root only would work.
>
> Nigel
>
>
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>