PB 15" screen backlight after sleep problem

I have an intermittent problem wherein my display backlight will not light sometimes upon waking up my PB from sleep. The backlight is totally out when this happens, not just dimmed. The laptop is on and the display itself is functioning (I can barely see the images on the dark screen) but the backlight is out. I have to press the power button for a second to get the "shut down" box, shut down the PB and restart it. During the boot process the screen backlight eventually relights. Anyone else having this problem?
MB 17in, PB G4 15in, PB G4 12in, iMac G3, iBook G3, PB 1400c, PB 5300 Mac OS X (10.4.6) Loyal to Apple since the Apple //+

Try to replace inverter board.
http://www.ifixit.com/cart/customer/product.php?productid=746&cat=&page=1
Really easy to replace if yours is still under warranty then bring to nearest AASP or Apple store, If not then to replace inverter board you neew to use allen key to open 2 screws in the display open your display as wide as possible more than 90 degree and try to take the screws out.
Then use plastic stick/nylon sticj to pry open the display along the light and dark grey plastic and after you open the display bezel you will see the inverter board located in the bottom of your display.
Hope this help
Flippo
PS: I'm not responsible if you break anything during take apart. Just be carefull and take your time.

Similar Messages

Were any reboot after sleep problems NOT fixed by the EFI firmware update?

The subject says it all. I wanted to get a read on whether this EFI update really did solve the reboot after sleep problem for all 2008 Mac Pros. If have an early '08 Pro that had the problem before the update and it didn't go away after the update (and it's not due to some other problem like kernel panics, etc.), then please post details in this thread. thanks!

We have 4 total systems (all had the issue, all slightly different configurations) and the reboot-on-wake issue has disappeared on all 4 of them.
Looks like a definitive fix to me.

Strange after-sleep problem

MBP penryn
leo 10.5.2
happened two times
i close the lid and the laptop goes to sleep
i close it in the middle of work (was listening to music, writing email and so on, so all my applications are opened), so i close the lid, it goes to sleep, after a while (doesnt matter how much time, really) i open it and see this:
http://img102.imageshack.us/img102/4509/p1140091vi3.jpg
(mirror: http://maccentre.ru/board/files/p114009111_142.jpg )
obviously i need to force restart (shut down) the laptop
is it because any the of programms that i have ? cause that's what i've been told but to be honest i have no idea what kind of soft might be causing it..
any help please ?

I have the same problem.
See:
http://forums.macgeneration.com/vbulletin/attachment.php?attachmentid=17106&d=12 10368537
GC

Screen distorted after sleeping or start up

When I wake my computer up from sleep the screen used to, at times, be distorted in that the words would be widened. I would put it back to sleep and usually it would fix itself but not always. Sometimes I would have to restart it or completely shut it down but as of today I can't get the distortion to go away. It started doing this within the first year I bought my laptop; I've had it about 27 mo. now. Could someone tell me what I need to do to fix this annoying problem?

Hello,
1. as advised above make sure you have latest bios installed with your unit (F.29 for 1/2015)
2. check your VGA driver and if you have newer than in hp.com go back to HP driver (sp56458)
3. your unit use VGA chip in AMD cpu and shared memory. Try to move your 4gb memory module to second memory slot and test
If none above will help you can backup your personal data and do factory reset = recover your SW image to factory SW installation (F11 when system starts)
If none above then you have hardware issue and your unit need HW troubleshooting. There might be memory, CPU or mainboard issues. Please contact HP service for more help.
I am an HP employee.

T440 fn ctrl reverting after sleep problem

Hi,
I have a T440, and I've set in BIOS to swap places for fn and ctrl. This works great until the machine goes to sleep or similar. After awakening the machine the keys are back to their original setting, with fn being fn, and ctrl being ctrl.
I havent explored this in detail but just found the machine sporadically losing the setting, but never while I'm working on it. So either from sleep or from locked screen.
I always use FnLk as well and that is also lost when this happens. I have to restart to get back the setting for fn-ctrl swap, but FnLk i can just enable,
Anyone else have this issue, any ideas how to fix?
I run Windows 8.1 on my T440.
Solved!
Go to Solution.

Looks like the recent BIOS update did not resolve this issue. The BIOS version on my ThinkPad X240 is 2.21.1.12.
P.S. I just realized this thread is about ThinkPad T440, so I started a new thread in the respective section for X240 to ensure the same issue is acknowledged and fixed for the different model.

Screen black after sleep startup and won't turn off w/ power button?

I have a Powerbook G4 and hardly ever turn it off, till lately.
My computer started turning itself off after I would open it and wake it up from sleep mode. It would flash the screen quickly and then go black. All efforts to turn it off with the power button failed. I had to remove the battery and disconnect the power cord for about 2 minutes until it eventually shut down. I have not had this issue since I have been turning it off after every use, but was wondering if this was a sign that something was going out on my computer?
Thanks!

Try a system reset. It cures many ills and it's quick, easy and harmless...
Hold down the on/off switch and the Home button simultaneously until the screen blacks out or you see the Apple logo. Ignore the "Slide to power off" text if it appears. You will not lose any apps, data, music, movies, settings, etc.
If the Reset doesn't work, try a Restore. Note that it's nowhere near as quick as a Reset. From iTunes, select the iPad/iPod and then select the Summary tab. Follow directions for Restore and be sure to say "yes" to the backup. You will be warned that all data (apps, music, movies, etc.) will be erased but, as the Restore finishes, you will be asked if you wish the contents of the backup to be copied to the iPad/iPod.
There's more to try but let's go a bit at a time.

Gray screen appears after sleep?

Hi Everyone! I received a brand new 13 inch. Macbook Pro Retina, 1 week ago. Until today, things have been working fine. I used it straight out of the box with no need to charge for a few days, left it off for a few days, and then on Saturday evening, I used it again, only having to charge once for an hour on Sunday. The computer was working great, until this morning, when upon waking the computer from sleep, a completely dark gray screen appeared. After 30 sec., the login screen loaded. I shut down the computer and restarted it, thinking that might help. Unfortunately, this same issue has happened 3 - 4 other times today. When waking from sleep, a dark gray screen appears for a minute before loading the login screen. Is this a common issue? Is it hardware or os related? Is there a fix for it? Should I return the computer and get a new one? I need this computer to last a few years. Any help is appreciated!

The warranty entitles you to complimentary phone support for the first 90 days of ownership.
If you bought the product in the U.S. directly from Apple (not from a reseller), you have 14 days from the date of delivery in which to exchange or return it for a refund. In other countries, the return policy may be different. If you bought from a reseller, its return policy applies.

Caps lock on screen display after sleep or hibernation?

Hello, I just got a lenovo carbon x1 and when the computer comes out of hibernation or sleep a symbol that says the caps lock is off appears on the screen for a few seconds. How do I stop it from telling me the caps lock is off after waking it up from sleep or hibernation? thanks

for example, under the chipset section there is a driver for the intel manegement engine that says:10.0.38.1036
in my device manager it says intel management engine driver is: 10.0.30.1054
my thinkvantage doesnt list this chipset as something that needs to be updated. why is it not telling me there are newer drivers to install?
Chipset
Intel Chipset Driver for Windows 8.1 (64-bit) - ThinkPad Helix (Types: 20CG, 20CH), T550,W550s, X1 C...
Windows 8.1 (64-bit)
Intel Chipset Driver
10.0.22
11/4/2014
README for Intel Chipset Driver
10.0.22
11/4/2014
Chipset
Intel Management Engine 10.0 Software for Windows 8.1 (64-bit) - ThinkPad
Windows 8.1 (64-bit)
Intel Management Engine 10.0 Software
10.0.38.1036
3/20/2015
README for Intel Management Engine 10.0 Software
10.0.38.1036
3/20/2015
Chipset
Intel Management Engine Firmware 10.0 for Windows 8.1 (64-bit) - ThinkPad
Windows 8.1 (64-bit)
Intel Management Engine Firmware 10.0
10.0.38.1000
3/20/2015
README for Intel Management Engine Firmware 10.0
10.0.38.1000
3/20/2015

Weird Screen Distortion After Sleep

My display got all wacky sometimes when resuming from standby. I reverted to v. 8.15.10.1855 of the display driver (Intel Mobile 4), and the problem seems to have gone. I noticed this problem after upgrading to version 8.15.10.1968.
Has anyone else noticed a problem like that?
Lenovo Thinkpad T400 Model 6474AH4
Windows 7 Professional 64-bit

Lenovo has listed this as an Intel chip limitation. Pls visit the below link for more details and a quick fix. Mine works OK now:
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-74739

Slow Screen Sharing after Sleep Wakeup

I use my MBP to Screenshare with my Mac Pro QuadCore (using the former to run programs on the latter). Normally it works fine and is fast enough to feel fairly seamless.
However, when my Mac Pro goes to sleep and then wakes up, Screensharing slows to a crawl. It doesn't always happen, but often enough to be incredibly annoying Reconnecting doesn't help, nor does restarting my MBP. The only cure is to restart my Mac Pro, at which point it's as fast as it was before.
Any suggestions to fix this? Anyone else experiencing similar problems?

Has anyone tried this: http://blog.macminicolo.net/post/33839671756/build-a-dummy-dongle-for-a-headless -mac-mini? i tried quartz debug from xcode as suggested here http://forums.macrumors.com/showthread.php?t=1422058&page=2 with no luck.

Gray screen shows after sleep when lid is open

Sometimes when my computer falls asleep when the lid is open, I try to wake it up and it shows as a gray screen. The only thing I can do is force a shutdown at this point. I usually have some USB device plugged in when it happens, but it's a different USB device every time.

Is there a way to non-destructively remove this magnet from my 17" PowerBook (older one with 1440x900 display)? I don't like that my PowerBook sleeps when I close it, and I've asked Apple if there is a way to disable this functionality. Short of plugging in an external display, they told me no.
This option is built in to the Windows OS, and I've grown quite accustomed to putting my laptops to sleep manually. I'd really like to be able to have the lid closed and still let programs run, downloads continue, etc.

Pavilion Touchsmart 23 screen dim after sleep since Windows 10

I have tried this, and it has not changed the problem. FYI, adaptive brightness was off by default on my computer after I upgraded to Window 10. Please escalate our issue, it is driving me crazy!

I also have a HP Touchsmart 23 with Radeon HD 8570D display adaptor exhibiting the same issue. Microsoft and HP report no available updates and the adaptive brightness is OFF. There are no brightness controls on any control panel page including the power managment sections. The Windows 10 notifications pull-up for settings does not have a brightness slider. Rebooting is the only method I have found to restore display brightness to a usable level. Previously on this thread it was stated ....According to the available list of supported drivers for your desktop computer, there is currently no Windows 10 graphics or chipset software published at the moment. The orginal post is from August 4, so now more than one week later a solution has not been forthcoming. Please escalate this issue as HP was reminding me to join in the Windows 10 upgrade and now that I did, I have an ongoing problem with the hp pavilion 23. Seems HP missed the boat and was recommending the upgrade knowing the chipset in the computer was incompatable. Shame.

15Inch G4 laptop screen black after sleep mode

I turned on the laptop and it came up with the log in mode. I realized that I didn't have the log in password so I waited for the owner to come back. 3 hours later I got the password and tried to log in again. but the screen was just black. The light in the front where you flip open the screen was on, pulsating. I tried to hold down the power button for a couple of seconds (15-10 seconds) but nothing happens. I can't start it again, I can't shut it down? am I missing something?
On the bottom of the computer I saw a row of 5 lights. 4 to 5 are on most of the time. I assume that signifies the harddrive is working...? There's also a button next to it. What is that button? Is it some sort of reset button? Should I press that one?
Any help appreciated.
thanks
Power Book G4 Mac OS X (10.4.3)

Hi S K5,
The lights your seeing on the bottom of the PB are actually on the battery. They indicate charge status. The 'button' next to it that I think you are referring to is the release catch for the battery. If you can't login and the PB is not responding when you press the power button you can try pulling the AC power adaptor then removing the battery, however I would at least inform the owner (if you haven't done so already) of this issue before proceeding further. Also, you'll need a dime or something small enough to fit in the slot on the 'button' next to the battery. Turn it in the direction of the 'open' lock icon to release the battery. Then reinsert the battery and try restarting the 'book.
Jrsy

Vista x64 Sleep Problem (no sleep, blank screen)

Just after installing the PCI-E X-Fi Fatalty card, my computer is now unable to go to sleep. It just hangs there at a blank screen with everything still working. Once I reinstalled the X-Fi driver in the device manager and that fixed it for a minute but the sleep problem still came back when I switched from Game Mode (default setting) to Audio Creation Mode. Now even if I reinstall the driver completely and not touch anything, the problem is still there. Maybe its the way Vista detects and assigns the memory space to the card I would like to get this resolved, my system specs are below.
OS Name Microsoft Windows Vista Home Premium
Version 6.0.6002 Service Pack 2 Build 6002
OS Manufacturer Microsoft Corporation
System Manufacturer Gigabyte Technology Co., Ltd.
System Model EP43-DS3L
System Type x64-based PC
Processor Intel(R) Core(TM)2 Quad CPU Q9300 @ 2.50GHz, 3000 Mhz, 4 Core(s)
BIOS Version/Date Award Software International, Inc. F8, 9/22/2008
SMBIOS Version 2.4
Locale United States
Hardware Abstraction Layer Version = "6.0.6002.8005"
Installed Physical Memory (RAM) 4.00 GB
Total Physical Memory 4.00 GB
Available Physical Memory 2.7 GB
Total Virtual Memory 8.20 GB
Available Virtual Memory 6.75 GB
Page File Space 4.29 GB

I have replaced the power supply now and there is no change. I see a flash of the backlight when I initially power the system on, then the post beeps and nothing displayed.
To recap, initially the system would not post. I attributed this, correctly, to a failed video card. Replaced it and I'm reasonably certain I could boot into Windows though I couldn't see anything. There was appropriate POST beeps and hard drive activity light consistent with Windows booting. When I waited for the hard drive activity light to stop, I could then press the power button and there would be hard drive activity consistent with Windows shutting down and the system would power off.
I replaced the inverter, but I lost track of which power leads were connected where on the inverter board. (IF anyone knows where the pink and blue leads connect for certain PLEASE let me know). Anyway, no change.
I replaced the LCD. No change.
I replaced the motherboard. No change.
I replaced the CMOS battery with a new one. No change.
I cleared the BIOS config, now I can't boot into Windows but otherwise, no change.
Finally, I bought a power supply, as recommended, and replaced it and you guessed it, no change.
So I guess, besides maybe getting the inverter connected incorrectly, I have tried replacing every part that I could even remotely imagine could cause my issue. I have devoted a lot of time to figuring this out and I almost always solve a system problem. Help!?!

Macbook Pro (early 2007) screen backlight problem (fixes temporarily with smc reset)

Hi all. Maybe someone can help.
My Macbook Pro was one of the units afflicted with the videochip/logic board thermal paste issue and Apple replaced the logic board a year ago.
I am having an issue that I can't figure out (I had the same exact issue a few months ago and it resolved after several smc resets)....
My screen backlight will flicker and then go out completely about 3 minutes after booting up. The ONLY way to get the light back on is to remove the battery, do an SMC reset and then it will work again perfectly....for about 3 minutes.....
The display is there....just not backlit... Also, once or twice the computer booted itself into safe mode (I presume, because it said there was no wireless hardware)
I have tried SMC resets, pram resets, shutting down, going into and out of sleep, etc....
Has anyone else seen this problem?
I am confused by someone I know saying it could either be the inverter or inverter cable or the logic board. I say this because the computer will reset itself (albeit for only 3 minutes each time) and the backlight will work perfectly (again for only 3 minutes) after an smc reset....every single time.
Any ideas?
p.s.....when this happened before and again this time, the computer was in extended sleep mode in my travel bag.....
Thanks for any answers and please let me know if you need more info......

(oh, I mentioned that it had the logic board previously replaced because when I called Apple they were ADAMANT that it couldn't possibly be the same issue since all afflicted boards were replaced with newly made parts....) just thought i'd throw that out there.....and the prior logic board issue didn't affect the backlight, but I did have the wonky graphics/lines/etc. That's NOT the problem now.....

PB 15" screen backlight after sleep problem

Similar Messages

Maybe you are looking for