I haven't tried that yet. Seeing I'm booting from the TB1 port I expect that would limit the performance.
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Embracing Early Intel
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Not sure if this helps or not but I have a mid-2007 Black MacBook which does not exhibit this behavior. Running latest version of Leopard.
For me, there wasn't any specific trigger to issue, it just happened any time I closed the lid without fail. It may be worth trying to put the computer to sleep without closing the lid to see if it wakes up anyway. I'm not 100% certain which versions of OS X it was messing up on, I think Leopard was the main culprit. Thank you for testing it out, I've always wondered about this issue. I may attempt to reinstall Leopard and Snow Leopard and give it a whirl again since I have the time to.
I'm tempted to say hardware. I have one or two Core Duo A1181s that do this, but they're fairly old and beaten up, and they exhibit this behaviour even after a clean install of the OS (admittedly I've only tried Snow Leopard). Other oddities include a black MacBook that boots up to a black screen, *only* if you do a reboot (but boots perfectly fine if you shut it down, and then start it up again), and another that simply refuses to go to sleep with the lid closed. And this is even after both PRAM and SMC resets.
I'm going out on a ledge here, but the issue might be with the sleep/wake sensor, or at least an issue with the SMC chip itself. It also could be a dead PRAM battery (especially if your A1181's main battery is already dead).
I was able to install Leopard again on the 2006 Core Duo MB, and just like it did before it doesn't sleep properly. Switched back to Tiger partition, no problems with sleep. Didn't have a whole lot of time to mess with it but I will when I can. This first batch of MBs was pretty problematic, so I'm not 100% sure what to expect.
You're welcome! Sounds good, I'll do that. From what I recall, I don't remember my Snow Leopard machine waking from sleep like my El Cap machine, but it could just be less noticeable because I have TeamViewer on my El Cap machine so I get a notification on my main computer any time it comes online.
I'll report back with results.
I got my husband a 2009 MacBook (white with 8 GB max RAM). While it did come with the Leopard install disk (and an iLife and iWork to boot--SCORE!), we opted for 10.13 as it's more recent and we won't have to fight the internet just to make it work there.
This one was so nice that I am jelly and want one also now.
This one was so nice that I am jelly and want one also now.
My unit isn't connected to the internet, strange. AT least from what little I was able to test of it so far, it seems to be more intermittent than it once was but definitely still there. Before it was every 5-10 seconds without fail.
Ah, ok. That's interesting. For my unit it was always less frequent, like once every ten or twenty minutes at most.
OK, sorry about that. Hope you get it cleared up soon.
In the meantime, I am now embracing early(ish) Intel with a newly acquired Dell Mini 10v, and I think you all know what that means
Cheers
Hugh
The backlight is the actual CCFL lamp. The inverter powers the lamp. Since the inverter is easier to replace I'd start with that.
MacBook Display Inverter
Replace a broken or damaged display inverter for your MacBook with this part and fix backlight issues. This part is compatible with all 13.3" MacBooks (excluding MacBook Unibody and MacBook Air).de.ifixit.com
However, it's also possible that the lamp itself has blown.
BEANTWORTET: How can I replace a backlight in my MacBook lcd? - MacBook
Yes it's a difficult job to replace the backlight bulb in a LCD screen. This little lamp is so fragile and difficult to manipulate without breaking it. You must desolder a wire at each end of the backlight, pulling it out of the LCD, pushing a new one in and redo the solder on both ends. If...de.ifixit.com
The inverter arrived today and I'll report back on the outcome once I've completed the disassembly.
Let's hope it is the culprit after all (and not the backlight).The inverter arrived today and I'll report back on the outcome once I've completed the disassembly.
I've had a look at the iFixit guide and it essentially involves a complete strip down of the computer requiring up to three hours of work - just to replace an LCD inverter. For goodness sake, Apple. I've been able to complete this task in 15 minutes on other laptops.
Rant over...
There has to be a faster and easier way to accomplish this? Has anyone tried the method shown in this video?
What do you think?
Rant over...
There has to be a faster and easier way to accomplish this? Has anyone tried the method shown in this video?
What do you think?
Update: I performed a dress rehearsal for the method shown in the video, using my semi-dead MacBook that serves as a donor machine and although I eventually succeeded during the test-run by sliding a small flat-head screwdriver around the already decrepit LCD bezel, the process was fraught with fear that I was going to damage the clutch cover.
Ironically, I didn't need to purchase a new inverter because it appears that contrary to prior evidence, the one inside my donor machine is working just fine and I could've salvaged it! 😂
Ah well, it means that I've got a spare anyway and I made use of the donor MacBook to check that the inverter I ordered actually works and indeed it does:
I'm tempted to use this shortcut for the MacBook in question but I want ensure that I don't cause any damage. Apparently others have done this without consequence.
Ironically, I didn't need to purchase a new inverter because it appears that contrary to prior evidence, the one inside my donor machine is working just fine and I could've salvaged it! 😂
Ah well, it means that I've got a spare anyway and I made use of the donor MacBook to check that the inverter I ordered actually works and indeed it does:
I'm tempted to use this shortcut for the MacBook in question but I want ensure that I don't cause any damage. Apparently others have done this without consequence.
Huh. Color me surprised. I've worked with a lot (erm, like 20-30+) of A1181 Core Duo and early Core 2 Duo MacBooks and in all of the cases where the display failed/was failing, it was always the backlight that was the cause (necessitating replacement of the LCD panel). Yours is probably the first time I've encountered someone whose display backlight was fine, but inverter was faulty.
In any case, I've always had problems with performing the "shortcut"; the wiring for the display inverter and the display data cable are set in such a way that pulling out the clutch cover is really tricky without damaging the cables, and/or breaking the cover itself. At least by doing it the "official" way, you can isolate the LCD from the rest of the Mac, making it much easier to do.
A tip for working with the display bezel -- I like using an old credit card/transit pass as a shim to pry it from the rest of the display assembly.
Ah, I think I've caused some confusion here. This is the A1181 that I want to operate on in order to correct the display issue:
As a test-run, I practised the steps shown in the video using an A1181 that I've retired from use and it now serves as a spares/repairs donor machine for my working A1181s.
Seeing as I'd succeeded with using it to practice removing the bezel and clutch cover, I decided to also use it to test the new inverter that I'd bought from eBay (to go into the BlackBook) and during this testing, I discovered that the donor machine has an inverter that appears to be working: which means I've now got a spare.
I'm hoping that the BlackBook just has a failed inverter rather than a bad backlight because that will require replacing the LCD.
Yep and this is exactly my fear and in that case, risking the "shortcut" on a machine that I wouldn't want to damage isn't worth the danger. I'll have to accept that the circuitous route is the most sensible course. After all, I've got ample time on my hands right now because the UK is under a lockdown for the meanwhile, so it's not like I have anywhere to go! 😄
Thanks for the tip - I've located an old debit card and I'll put that to use. 👍
My 17" MBP has given me a slight sign of concern this morning. Was transferring some files off of it (Booted into Tiger) and once I was done I was too busy to think to shut it down right away, so it went to sleep. Not really a problem, but about 25 minutes later, I heard an Apple chime and turned around to see my MBP rebooted into Mavericks. I have no idea what happened to cause this random reboot. Didn't think to check the log as I was still in the middle of what I was installing on the rack. I'm suspect that it's the battery, as it is getting weaker and it shows Service Battery, so perhaps something happened that caused a random restart. Other than that, I fear something serious. First time this particular issue has happened to me in years. Mostly experienced this on Windows desktops.
Anything even remotely suspicious in the log? You said you don't know when it happened but I'd look for entries pertaining to a reboot on the day in question. If it had been a kernel panic it would not have rebooted. Apart from that, keeping my fingers crossed that it's nothing serious.
