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Mac Forum / General / General / October 2008Key board issue?
Anybody got any idea why i suddenly have to unplug the key board from my iMac and plug it back in to make it function? This only happens when i restart it in the morning, works fine all day long, i turn it off, and next day when i turn it on the keyboard & mouse wont work unless i unplug it and then plug it back in. -- JL > Anybody got any idea why i suddenly have to unplug the key board from my > iMac and plug it back in to make it function? > > This only happens when i restart it in the morning, works fine all day > long, i turn it off, and next day when i turn it on the keyboard & mouse > wont work unless i unplug it and then plug it back in. It happens here too - no rhyme nor reason just doesn't work. Stick it in a new USB socket (same hub) and off it goes! Bizarre! > Anybody got any idea why i suddenly have to unplug the key board from my > iMac and plug it back in to make it function? [quoted text clipped - 4 lines] > -- > JL You must be a newbie. Why on Earth would you be be shutting down and restarting your Mac on a daily basis ? Just put your Mac to sleep. Are you aware that your Mac runs automatic Unix maintenance scripts on your Mac (daily, weekly and monthly routines) at 4:00 a.m. -- as long as your Mac is running. I am a power user and have been a mac Expert since shortly after the 1984 inception. I have several networked and running 24/7. Unless you are not going to use your Mac for a couple of days, at the least, let it run. It is particularly bad for your Hard Drive to reboot so often and in sleep mode the power consumption is nil. I am certainly a newbie - only a year or so's experience of Macs. I thought switching off was what one did. Is this true about the unix maintenance? I'll try sleep mode from now on. S PS: Nice CV ;-) >> Anybody got any idea why i suddenly have to unplug the key board from my >> iMac and plug it back in to make it function? [quoted text clipped - 19 lines] > It is particularly bad for your Hard Drive to reboot so often and in > sleep mode the power consumption is nil. > I am certainly a newbie - only a year or so's experience of Macs. I > thought switching off was what one did. > > Is this true about the unix maintenance? Yes, true. If one knows what one is doing you can change the times for the scripts to run. Or get a utility such as Onyx (versiontracker.com) and run them on demand. Don't leave it in sleep mode long term however. If you use it every day, put it to sleep. If you go out of town for a week, turn it off. Can you tell me more about Unix night time maintenance please? What initiates this process - Apple? What does it do please. >> I am certainly a newbie - only a year or so's experience of Macs. I >> thought switching off was what one did. [quoted text clipped - 7 lines] > Don't leave it in sleep mode long term however. If you use it every day, > put it to sleep. If you go out of town for a week, turn it off. > Can you tell me more about Unix night time maintenance please? What > initiates this process - Apple? What does it do please. A Unix command called Cron initiates the scripts. The daily script removes old log files, "scratch" and "junk" files, backs up the NetInfo database, reports a variety of system and network statistics, and rotates the system.log file. Under Tiger and Leopard, the daily script also cleans up scratch fax files and prunes asl.log, the log for the Apple System Logging facility. The weekly script rebuilds the locate and whatis databases and rotates the following log files: ftp.log, lookupd.log, lpr.log, mail.log, netinfo.log, ipfw.log, ppp.log, and secure.log. The monthly script reports per-user usage accounting and rotates the wtmp, install.log, and cu.modem.log files. It is possible to use Cron to schedule other scripts as well. For example, repair permissions on a regular basis, sync folders and so on. Some say that Leopard will run the scripts at the first available time if the machine was off or asleep. I am not running Leopard yet so cannot confirm. A very useful utility for modifying schedules is CronniX. CronniX is available on Versiontracker.com > > Can you tell me more about Unix night time maintenance please? What > > initiates this process - Apple? What does it do please. [quoted text clipped - 23 lines] > A very useful utility for modifying schedules is CronniX. CronniX is > available on Versiontracker.com A followup with regards to Leopard - launchd has taken over the job os scheduling the scripts. CronniX will run but doesn't allow you to change anything any longer. Using Google, it appears Lingon is the replacement for CronniX under Leopard. See http://tuppis.com/lingon/ Does this mean its a good idea to leave a Mac running at night from time to time? >>> Can you tell me more about Unix night time maintenance please? What >>> initiates this process - Apple? What does it do please. [quoted text clipped - 31 lines] > Leopard. > See http://tuppis.com/lingon/ > Does this mean its a good idea to leave a Mac running at night from time > to time? Up to you. Since you can run them on command, I would say no. OK, and bearing in mind that you're talking to a newbie contaminated by nearly twenty years windows exposure, could you talk me through how to run these? I have 10.5.5 on my Mac. TIA Oliver _______________________ >> Does this mean its a good idea to leave a Mac running at night from time >> to time? > > Up to you. > > Since you can run them on command, I would say no. > OK, and bearing in mind that you're talking to a newbie contaminated by > nearly twenty years windows exposure, could you talk me through how to > run these? I have 10.5.5 on my Mac. I suggest you go to Versiontracker.com and make sure you are in the OSX section. http://www.versiontracker.com/macosx/ Search for OnyX and download. When you run it there is a Maintenance tab option. The scripts will be here and you check which you want to run and execute or run your selections on that particular tab. I am still running 10.4.10 but OnyX should not change much in how the options are selected. I cannot run the very latest version as it's for 10.5 only. Flash1296 a écrit : >> Anybody got any idea why i suddenly have to unplug the key board from my >> iMac and plug it back in to make it function? [quoted text clipped - 12 lines] > your Mac (daily, weekly and monthly routines) at 4:00 a.m. -- as long > as your Mac is running. I'm not a newbie to Macs, only to Unix stuffs... (indeed, I don't restart my Mac every day ;-) ) But your answer above suggests that if one puts the computer to sleep, the scripts will run at the hour you said. Well, unless the computer wakes up (after all, this capability is built into the Mac), I can hardly believe the scripts will run on a sleeping machine... |
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