Unable to install Canon LiDE 300 on Ubuntu 18.04. How to solve it?
For Ubuntu 20.04, this scanner does not work straight forward.
ippusbxd driver tries to get the USB device, and it locks it.
dmesg -w there is a line:
usb 1-11: usbfs: process 5756 (ippusbxd) did not claim interface 0 before use
To resolve the problem:
sudo apt remove ippusbxd
and replug the scanner ! (tested on live USB unmodified Focal).
Download the scanner's linux driver from the Canon website. It's the same driver for related models:
Unpack and install the driver from the download directory:
Canon's own driver is not enough though, to get the Canon scanner working. It only half works. Assuming you have installed Sane. Sane will recognise the scanner.
$ sane-find-scanner found USB scanner (vendor=0x04a9 [Canon], product=0x1912 [LiDE 400]) at libusb:003:008
But it won't work.
$ scanimage -L No scanners were identified $ scanimage --format=png > test.png scanimage: no SANE devices found
Likewise, SimpleScan won't yet detect the scanner.
It will scan at this stage by running Canon's own scanning software, supplied with the scanner download: scangearmp2. But this software is as rudimentary as toddler's tea set. It won't even let you change the resolution, filetype or scan area.
sudo add-apt-repository ppa:sane-project/sane-git sudo apt-get update
sudo apt install libsane-common sudo apt install sane-utils sudo apt install xsane
The scanner worked from Xsane, after doing this. And from Gimp, by calling Xsane (it sees it as a pixma:04A91912 scanner). But the image was dull.
Thankfully, it now also works from SimpleScan.
By the way, when I contacted Canon for help because their scanner wasn't working, they told me that they "don't support Linux". I replied by pointing out that they had taken the time to supply a driver, so surely they would want to make sure it actually worked when people installed it. But they simply repeated that they "don't support Linux".
Finally found a USA Linux driver from Canon: USA driver link Linux 64 bit
Just to add my amateur advice. After all the above,
xsane still could not find the USB scanner on my system.
Make sure the scanner is not asleep, plug it out and then in, then run:
you should see this or something like it:
found USB scanner (vendor=0x04a9 [Canon], product=0x1913 [LiDE 300]) at libusb:001:009
Go to the directory
/etc/sane.d/canon_dr.conf and put the vendor and product numbers in that file.
At the bottom of the files I added the following lines:
# LiDE-300 usb 0x04a9 0x1913
I also stuck that in
canon630u.conf (just to be sure)
xsane finds the scanner and I can use it.