Try resetting the power management unit (PMU) - there are articles on how to do this on the Apple support web site. Also, reset PRAM by holding down cmd-opt-p-r when booting.
I also recall seeing some articles on PB G4s not waking from sleep - have a search for those as well. Cheers Greg > From: Rob Phillips <[EMAIL PROTECTED]> > Date: Tue, 4 Oct 2005 13:22:14 +0800 > To: WAMUG Mailing List <[email protected]> > Subject: Re: Powerbook G4 > > Sometimes my power supply just stops charging. I pull it out of the > socket and plug it in again. It works again. > > Once before, the sleep switch connected to the locking catch on the > lid was faulty. I tried opening and closing several times. > > Rob > >> Sounds like the battery didn't charge for some reason. Does it start up when >> you have it plugged in to the mains? >> >> Have experience of laptops not starting up at all if battery power too low. >> >> Quoting Mark Secker <[EMAIL PROTECTED]>: >> >>> Is the AC adaptor showing green or orange or no light (maybe you've >>> lost mains power)? maybe dead battery but if on AC this shouldn't >>> matter.... >>> >>> without going in depth but have you tried removing the battery and >>> the external power supply (OK so this will power off the machine >>> rather than wake it but....) >>> >>> seen this with sleep when screen savers or programs have hung when >>> the machine goes to sleep or wakes up also using external drives that >>> have been disconnected or powered down and also with wireless >>> connections that are no longer available - also faulty/dying logic >>> boards cause this but >>> >>>> My PowerBook G4 has been sleeping all night plugged into the power but this >>>> morning it will not wake from sleep. I've touched all the keys, space bars >>>> etc and removed and reinserted the battery all to no avail. >>>> >>>> Pressed and held the on/off button for 15 seconds or so but nothing >>> happens. >>>> The little blue indicator light is on and pulsing slowly. >>>> >>>> The battery only shows one light when I press the little button. Should it >>>> show more and is this important if the AC power is on? >>>> >>>> Any suggestions? >>>> >>>> Lloyd >>>> - >>>> >>>> >>>> >>>> -- The WA Macintosh User Group Mailing List -- >>>> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> >>>> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> >>>> Unsubscribe - <mailto:[EMAIL PROTECTED]> >>>> >>>> WAMUG is powered by Stalker CommuniGatePro >>> >>> -- >>> ~ >>> Mark Secker Computer Support Officer >>> ph# 61-8-6488 1855 (ECEL) <mailto:[EMAIL PROTECTED]> >>> University of Western Australia - CRICOS Provider No. 00126G >>> ~ >>> >>> "It takes an idiot to do cool things.... that's why it's cool" >>> - Haruhara Haruka (FLCL) >>> >>> Ubi fumus, ibi fumus >>> >>> >>> >>> -- The WA Macintosh User Group Mailing List -- >>> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> >>> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> >>> Unsubscribe - <mailto:[EMAIL PROTECTED]> >>> >>> WAMUG is powered by Stalker CommuniGatePro >>> >> >> >> >> -- The WA Macintosh User Group Mailing List -- >> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> >> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> >> Unsubscribe - <mailto:[EMAIL PROTECTED]> >> >> WAMUG is powered by Stalker CommuniGatePro > > > -- > ------------------------------- > Dr Rob Phillips, Educational Designer, [EMAIL PROTECTED] > Room 4.38 Teaching and Learning Centre, Library North Wing > Murdoch University, South St, Murdoch, 6150, Perth, Australia > Phone: +61 8 9360 6054 Mobile: 0416 065 054 > Executive Member, Australasian Council on Open, Distance and E-learning > (ACODE) > Want info about ICT in education? > http://lists.murdoch.edu.au/mailman/listinfo/online-tl > ------------------------------- > > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Unsubscribe - <mailto:[EMAIL PROTECTED]> > > WAMUG is powered by Stalker CommuniGatePro >
