Canon ScanGear and multiple button managers
Canon ScanGear and multiple button managers
It appears that the Canon's ScanGear installer - for the company's scanners and all-in-one devices - provides two active button managers by default, regardless of which scanner you have. While there are apparently no performance or scanner function issues associated with the extraneous button manager, it does produce errors that are recorded in the Console log file - which can grow quite large for a machine not reset or logged out for long periods of time.
Arne Berglund describes the problem:
"This weekend I replaced my old scanner with a new Canon LiDE 20. Last night when doing routine maintenance, I noticed that my Console.log was logging a new error about once per second, and was growing rapidly. (G4 dual 533 running 10.2.4) The error simply repeated that it was looking for a device with a hardware code of '8718'. I then went to Apple System Profiler to see what devices I had that might have a similar vendor code. I didn't see that code, but my new LiDE 20 has a hardware code of '8717', which was close enough that I didn't think it could be coincidence. Running "top" in Terminal showed that there were two different "button managers" running - N067u-buttonmanager and N124u-buttonmanager. (Again, I think those are the exact names, but I can't verify that right now.) Login Items showed both of those managers loading at login. It didn't take long to determine that the N067 version was correct for the LiDE 20, and I guessed that the N124 version was for the LiDE30.
"So I called a friend who also has a dual 533 G4 and owns an LiDE 30. His log was the same as mine, except it was looking for the '8717.' Removing the unneeded button manager from the login items and logging out and back in stopped the errors in the logs on both machines."
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