Brother Network Scanning Permissions Problem

SLogik

Hello all,
Just setup a Brother MFC-L2750DW Printer/Scanner on my network. I connected it to WiFi, then I walked back to my desk and opened printers, Solus had already seen it. Nice, and I could print without issue.

The problem I had was with the scanner. I installed brscan4 from the software center, and ran "sudo brsaneconfig4 -a name=SCANNER model=MFC-L2750DW ip=the_scanner_ip. brsaneconfig4 -d would show everything looked good and the scanner could be pinged. However, every time I attempted to start a scanner application from the menu (gscan2pdf, Document Scanner, Skanlite) each application would crash either on start when discovering scanners or when I tried to start a scan and it did it's discovery then. After searching the forums and having no luck, I wondered if it could be a permissions issue. So I ran "sudo gscan2pdf" and it saw the scanner and everything works exactly as expected. I tried starting one of the other scanning apps with sudo and it worked also; so definitely a permissions issue. This is great in that I can work and am not dead in the water, but I'd really like to be able to run a scanner app from the menu rather than starting them from the terminal with sudo. Can anyone direct me as to how to troubleshoot where the permissions issue is so that I can resolve it? Hopefully this will help someone else if they run into the same issue. Thanks in advance for everyone's time and help.

brent

what you are leaving out is you were unable to run the unpriveliged gscan2 from gui or terminal? is that why the sudo?
gscan2 being the red herring here because it has no specific brother affiliation

you evidently followed the solus page rec for brother: https://getsol.us/articles/configuration/configurin. good.

this command depends on having sane-backends installed in repo--I believe. Check that.

some mfc model news at solus dev site too: https://dev.getsol.us/search/query/GyPlKHE5NpsV/#R

as far as changing these executables back to non-sudo....need to dust of some chmod/chown commands?

2 cents/brain empty🙂

SLogik

brent
Thanks for the reply. I had an Epson multifunction device previously, I could scan with that over the network, with gscan2 run from the menu/GUI, no sudo. As that is what I used previously and it worked well, I tried to continue to use it. sane-backends installed when I installed Skanlite I believe; either way I can confirm it is installed. All 3 of the apps I can run from the menu/GUI, they crash when discovering the scanner, so it's not specific to gscan2 or that they won't run without sudo. They just crash when they try to discover or interact with the scanner without starting it with sudo.

brent

off-topic: I'm surprised you didn't (or do you?) have utsushi or iscan installed for the old epson device...skanlite a kde/plasma-only app? I always see it in repo.
document-scanner is simple-scan?
all this irrelevant I believe.

by crash you mean a freeze or abort in the GUI on non-discovery of the usb scanner/printer?

or can you run these apps non-sudo or sudo thru terminal so smarter people (than me) can decipher the terminal output? it may be revealing.

Axios

I just checked checked my mfc-j680dw and for some odd reason i had to enter the setup command again for the network scanner then it worked ok both with gscan2pdf and simplescan has been setup for along time dont know what happened. I had some funky permission stuff with another program but i created another user and it worked fine so i transfired my stuff to the second user..lol and everything has been fine with everything since except this little scanner glitch! Prob not right way to do it but i went back and forth with permissions never gained any ground figured more than one way to skin a cat.