Sitemap

Amicuk Programming Answers

Power management problem in MacBook 13 firmware?

-0001-11-30   Views:0

Advertisement

After installing the Tiger 10.4.7 update, I have seen various problems with powering up my MacBook. Once powered up, I don't have any visible problems. Only after powering down, the problem arises. When I go to start the MacBook, the screen goes all

After installing the Tiger 10.4.7 update, I have seen various problems with powering up my MacBook. Once powered up, I don't have any visible problems. Only after powering down, the problem arises.
When I go to start the MacBook, the screen goes all gray, then it looks as though the LCD update stops. The screen slowly fades to colored vertical lines, then goes white as if the clocks to the LCD module have stopped, or at the wrong speed.
The solution that I have found to overcome this is to clear the PRAM (ALT-CMD P R) and to then hold the power button until the white led blinks fast. I get a long tone from the speaker, then the machine boots normally.
I suspect that something in the new 10.4.7 update is causing the PRAM / Power management system to become corrupt. Any thoughts?
Thank you.
John

The replay answer
Advertisement
Thanks for the reply. I don't consider the LCD lines a problem in themseleves. There is something that changed when the 10.4.7 update was installed that has caused an issue with the startup.
Just to be clear, I had backed up, repaired permissions, checked my HD media, and followed Apple's recommended action before installing the update (as with all other updates).
My educated guess, having designed hardware and firmware for a number of years, is that something is corrupting the PRAM or other startup prior to getting to the HD. Until we start looking into the underlying problem with the update itself, the problem will continue.
It is important to make sure that there are no underlying problems with the system before installing an update. However, in this case, it is clear that there is something wrong with the update / update process with 10.4.7.

Go to See the other 4 answers

Power management problem in MacBook 13 firmware?

Category:DefaultRelease time:-0001-11-30Views:130

After installing the Tiger 10.4.7 update, I have seen various problems with powering up my MacBook. Once powered up, I don't have any visible problems. Only after powering down, the problem arises. When I go to start the MacBook, the screen goes all[More]

My macbook pro has gone dead due to power management problem any help?

Category:DefaultRelease time:-0001-11-30Views:130

my macbook pro has gone dead due to power management problem any help?See if there is a solution in this extensive document: https://discussions.apple.com/docs/DOC-3353 Ciao.Read other 4 answers[More]

Power management problems

Category:DefaultRelease time:-0001-11-30Views:130

A couple of weeks ago I installed quite a few of the patches in the recommended list. Since then, I get the following message repeated continually in the console window: DPMSSet: Invalid argument Power management problems I'm runnig solaris 8 on a ul[More]

KT4 Ultra APCI power management problems

Category:DefaultRelease time:-0001-11-30Views:130

After I boot I must go into Win98 power management propertys and apply to get any power management functions to work. And then all I can get is monitor blank and hardrive power down. Unit will not go into suspend. If I use the suspend feature in powe[More]

Power management problem on S540 still update of april, 18 2015

Category:DefaultRelease time:-0001-11-30Views:130

Hi, since last driver update (power management driver) , my S540 go on sleep very often and aleatory While I'm working on... Someone have the same trouble ? I tried to restore earlier the system, update the driver etc.... always the same problem. It'[More]

T61P XP/SP3 - Power Manager Problems, Can't save schemes, limited schemes available

Category:DefaultRelease time:2015-10-11Views:130

Hi All - When I got this -rockin'- laptop originally I could set my own power schemes without problem.  Now it won't save my new powerschemes.  I try to create one, finish the last step, and then the power scheme isn't in the dropdown.  I read somewh[More]

Lenovo G510 Power Management Probleme

Category:DefaultRelease time:-0001-11-30Views:130

Hey Guys i have a really anoying probleme with my new Lenovo Laptop. When i put the charger in, it runs slower than o battery. For example if i want to play a game and want to plugg it in so that it wont use the battery my performance is affected. I[More]

Power manager problem under vista 64 bit

Category:DefaultRelease time:-0001-11-30Views:130

Happy to see Lenovo opened a forum and willing to hear from the customers. Power manager has problems under Vista 64bit: 1. Sometimes it will cause explore.exe can't start when windows start. 2. If no window at max, the color of the battery icon will[More]

Lenovo 3000N200/0769/B5G - Power Management Problem

Category:DefaultRelease time:-0001-11-30Views:130

I have recently downgraded the Operating System on my Laptopto to Windows XP Pro with reasonable success. However, there is one problem. I can go into Standby and Hibernate mode all right, though it takes a good 60 secs to do so, but I cannot wake th[More]

Power management problem with USB modem

Category:DefaultRelease time:-0001-11-30Views:130

I now use a MS-6743 (i865G) board. My previous board was MS-6533, it did not have USB v2.0. The problem is my Aztech (originally Smartlink) USB modem prevents the system going into standby mode but this should be a USB 2.0 issue because I'm using the[More]

X61 Vista power manager problem

Category:DefaultRelease time:-0001-11-30Views:130

I have just reinstall my vista (japanese version) and change it into english with MUI (multilanguage user interfae). Then I realize that my power manager didn`t show my battery details. could anyone help me? regards n thxWhen I open Power manger, It[More]

Hot
My son has had his Ipod for about 3 weeks. He swears he did not get it wet but it has a watermark covering 1/3 of the screen. Kind of like an oil goo behind the display. Anybody else experience or hear of this?No, the only time of heard of anything s [More]
Can someone help me, please?  I'm new to Blackberry, but my boss has just gotten one.  How can I add contacts (I have quite a few to get into this new phone) without having to manually enter them on the phone?  I'd prefer to compile a list on my comp [More]
I have auto recovery set for every 5 minutes.  I have been working on a file that has been saved several times a day.  Today when just moving a shape Viso 2010 crashed after I had been working on the file for over 2 hours.  Auto recovery popped up ev [More]
I was trying to import account records using data loader. For the 'Account Owner' field the data file contains 'User ID', then the import is failed. When I use "Company Sign In ID/User Id" value in the data file it is sucessfull. Do we have any [More]
Hello All, Our client wants to maintain two separate and distinct fiscal year calendars for Fixed Assets: 1. One for Financial statements (Oct - Sep) and the other for 2 .Tax reporting and compliance purposes. (Jan - Dec) How would you accommodate th [More]
Hi all, It is possible to control the access to office documents that can be created/deleted/modified that is used in "Attachment List" (for instance, in a FI document viewed in transaction FB03) ? Is is possible to control what actions can be e [More]
Premiere 5.5.0 hangs when loading media. When I drag like 20 files from explorer to Premiere, it loads some files, but at a random point it stops loading and freezes. I loaded every file manually by using ctrl-I within Premiere and saving regularly. [More]
I've installed IFS 1.1 on Solaris with a 8.1.7 database. I succeeded to start the windows and webui interfaces and upload files in IFS. I try now to connect a web folder since Win2000 explorer to implement the WebDAV protocol. 1) first, i can't conne [More]
I bought Photoshop Elements and have Amazon order # and Adobe Serial # but when I try to open I get "Your trial has expired" message.First of all, are you sure it's a serial number? PSE serial numbers are 24 digits beginning with 1057. Anything [More]
doesn't show up on software updates thru Mac Store but saw link via CNET's mailer for apple stuff http://reviews.cnet.com/8301-13727_7-57618799-263/boot-camp-update-brings-64-bit -support-to-windows-drivers/?tag=nl.e798&s_cid=e798&ttag=e798&ft [More]