After using a rather old Canon scanner for many years, I recently upgraded to the Canon LiDE 300,and installed the drivers as directed, on a Bullseye system (10.2.0-17). The printer is recognized: $ scanimage -Ldevice `pixma:04A91913_47A8A4' is a CANON CanoScan LiDE 300 multi-function peripheraldevice `escl:http://127.0.0.1:60000' is a Canon LiDE 300 (USB) flatbed scanner When I run simple-scan, it detects the printer and announces itself ready to go, but when I tryto scan anything, I get the message "Failed to scan Unable to connect to scanner". I Googled foranything related to this; there's a bunch of stuff on Ubuntu and Mint forums about purging the"ippusbxd" package, but this isn't on Debian. I then ran simple-scan with the debug flag, and at the moment I try to initiate a scan, I got: [+20.83s] DEBUG: simple-scan.vala:1817: Requesting scan at 150 dpi from device'escl:http://127.0.0.1:60000'[+20.83s] DEBUG: scanner.vala:1683: Scanner.scan ("escl:http://127.0.0.1:60000";, dpi=150,scan_mode=ScanMode.GRAY, depth=2, type=single, paper_width=0, paper_height=0, brightness=0,contrast=0, delay=3000ms)[+20.83s] DEBUG: scanner.vala:828: Processing request[+20.83s] DEBUG: scanner.vala:889: sane_open ("escl:http://127.0.0.1:60000";) ->SANE_STATUS_NO_MEM[+20.83s] WARNING: scanner.vala:893: Unable to open device: Out of memory
I'm not sure what could be going on, as I have a ton of memory on my system. I don't know why I tried this, but I then ran simple-scan as root, and...it worked perfectly. I'm bewildered by this--any idea what I should be looking at?
