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Workaround for TiBook wake from sleep glitch System
I have had an intermittent problem with my Titanium powerbook not waking properly from sleep: the hard drive wakes up, but not the screen. I don't know what causes it, but I seem to have discovered a workaround: if this happens, close the cover, wait till the pulsing light at the hinge indicates the machine has gone back to sleep, open it up again, and hit the spacebar. This has worked for me twice so far (it doesn't happen very often, so I haven't had the opportunity to test it more than that).
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Workaround for TiBook wake from sleep glitch | 23 comments | Create New Account
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Same problem with Pismo
Authored by: poley on Aug 15, '02 10:39:33AM

I have also had this problem with my Pismo G3 PowerBook. It has happened a number of times, and the method you described seems to do nothing. I always have to hold down the power button and restart it the hard way. Has anyone found a workaround for that?



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Fix on Wallstreet
Authored by: bkuemmer on Aug 15, '02 11:04:55AM
I had this several times on a G3 Series Wallstreet Powerbook. I got it fixed by booting into Mac OS 9, putting the system to sleep there and waking it up again.

HTH
Bernd

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Fix on Wallstreet
Authored by: tandmrider on Sep 10, '02 07:19:00PM

Thanks for the tip on booting up in OS 9, then go to sleep and awake. For some reason ?????? it worked and now I can put it to sleep in OS X and awake it with the screen bright as ever.



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brightness button
Authored by: drjones on Aug 15, '02 03:17:12PM

On my Pismo sometimes this would happen. I tried the power manager reset
and the complete-shutdown-wait-30-sec restart type PRAM zap (zaping NVRAM)
It was resistant to fixing. Then I read that Pismos that show this might respond to a tickle of the brightness button. It worked. But now I just keep Energy Saver at 'Never' And I 'never' have to do this. YMMV.
If you're worried about preserving the LCD screen, just use a fairly dark screensaver.



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brightness button
Authored by: mtm on Dec 09, '02 11:19:06PM

Just a quick note: using a dark screen saver does nothing to prolong the life of an LCD screen. Unlike a CRT the individual pixels of an LCD screen are actually just color filters in front of a backlight. So when a pixel is black it just blocks all the light from the backlight. The backlight is what usually goes bad in an LCD, so the less it is on the better.



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Same here
Authored by: Trezzer on Aug 15, '02 06:02:15PM

I've observed the same behaviour often on my iBook 500 2*USB.
As a matter of fact it happens almost every time (when a screensaver is running). I am also able to get it working again by shutting the lid and opening again.



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sleep problems w/ Lombard too!
Authored by: ericson1149 on Aug 15, '02 06:38:06PM

ditto!
it's specially problematic when I log-out, put the computer to sleep, then wake up... screen is still blank. Pressing the brightness botton only helps when you're logged into a user, otherwise, I have to find my way around the dark. So I press "E", the first letter of my username and press return, then type my password in A blank screen, and pray I typed it correctly. Only then after the user has logged-in, the brighness botton works to wake up the screen. I'm great at trouble-shoooting problems such as these, but I'd feel sorry for those who are not so familiar with these tricks. quite frustrating!



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Not only powerbooks
Authored by: eriklager on Aug 15, '02 06:55:32PM

I have the same problem with my PowerMac G4 sometimes. The method described in the hint works for me every time.

Erik



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Not only powerbooks
Authored by: ElectroMech on Aug 15, '02 07:40:54PM

Same here, my G4/400 does this periodically. I can even get itunes started with my F-key combo and start the visuals and the monitor still doesn't kick on.



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Not only powerbooks
Authored by: bluehz on Aug 16, '02 12:40:56AM

Whats the secret on the G4? My G4/400 does this about once a week - but I hav eno brightness F-keys on my keyboard - any other technique?



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Here's how to reproduce it, at least on my 667 DVI
Authored by: ttjervaag on Aug 16, '02 06:01:17AM

This seems like the same thing that happens to my titanium once in a while. If I close the lid to make it go to sleep and then open it before the pulsating light has had a chance to come on, it's sitting there with a black screen but with the HD/fans still running. The only solution I've found so far is to hold the powerbutton for a while to turn it off and on again. Will try your tips tonight and report back.



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Discovery.
Authored by: tobias on Aug 16, '02 05:00:11PM

I also ran into this problem on my TiPB.
Really got me going until I discovered:

The screen is black. The machine is running.
Hit the on/off key will only get you a string of bleeps when the machine
actually asks you "Are you sure you want to shut down your computer now?"
(and that you keep clicking outside any buttons...)

Well, just hit the brightness key a couple of times and you should get your screen back. Yes, go figure.

Seems like a bug, that could be fixed with a script...



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Virtual PC
Authored by: baruz on Aug 17, '02 04:10:47PM

Earlier versions of Virtual PC caused wonky sleep/wake behavior on my TiBook, though I don't remember the exact details. It took me a while to figure out because the problem was so intermittent and unexpected—I don't have many uses for Windows apps on my laptop, so I would attribute it to knocking it around in my backpack. Ever since upgrading to the latest VPC version (5.0.4?), I have not had sleep/wake problems. How many of you were using VPC when this happened? Or perhaps some other application is at fault?



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Another sleep bug?
Authored by: muzzymate on Aug 18, '02 02:24:00PM

I've got a pretty infuriating problem with my Powerbook. It's only every so often but it's incredibly frustrating. I often close the display and have the computer go to sleep if I'm not going to be using it for awhile. When I want it to come out of sleep, I'll pull the lid open, the computer will come up and ask me to type a password to unlock the computer from the screen saver. I'll type in my password, hit the enter button, and it'll unlock the computer for a second or two before the screen saver reactivates and asks me to type in the password again. It will loop like this until finally I have to press and hold the power button down until it shuts off. This has happened in 10.1.5 and I would have hoped that wiping the hard drive and doing a clean install of Jaguar off of my friends new iMac computer (I have a copy on the way from Apple :) but wanted a chance to install it), but Jaguar does it too. Any ideas?



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Another sleep bug?
Authored by: mbuis on Aug 20, '02 08:46:39AM

Any chance you have the caps lock down?



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Another sleep bug? Fix for faulty latches.
Authored by: wkiri on Apr 01, '04 11:04:23PM

I've had this same problem, but it is usually caused by the laptop closing, and then getting bumped open and closed without getting to fully wake up or sleep. Since this is only an issue when I'm transporting it from home/work/travel, it only happens when it's on battery power, and therefore one solution is to "disable wake from sleep when the lid is opened, when battery power is used". You can do this with:

sudo pmset -b lidwake 0

I hope this solves your problem, too.

Kiri



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TiBook Sleep Problem Workaround
Authored by: dzahn on Sep 20, '02 12:16:44PM

My laptop wakes up with a black screen if I disconnect a second monitor aftrer it has gone to sleep by closing the lid. Adding the second monitor back only produces two blue screens. Hard reboot is the only way out. I had hoped that OSX 10.2.1 would solve this problem but it has not. However this workaround continues to work.

Before putting your TiBook to sleep: 1. make sure the top menu is on the TiBook. 2. pull the video cable to the external monitor. 3. open the display control and "detect display" (to get the laptop to notice that it has only one display). 4. put to sleep.

When you decide to wake up your laptop: 1. first wake up. 2. then plug in second display. 3. use the display control and "detect display".

This works very reliably for me; I have not tried all the permutations of this method and there may be a simpler process. I believe that this issue is a result of changes that Apple made to the display controller to allow you to have an external monitor running on a lap top with a closed lid. A very silly "improvement" if you ask me.



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TiBook Sleep Problem Workaround
Authored by: GOPbabe on Dec 09, '02 04:32:06PM

Running Wallstreet G3 292 mhz and had the same problem of
display being dark when waking up from sleep mode. Only my
display stayed dark not only when it was woken from sleep but
also after each reboot.

I resolved the problem by booting into System 9 and turning off OS9
Energy Saver. I have found that it is best to have your preferences and
control settings on both systems, OS9 and OSX, set to the same
settings, otherwise, it causes a conflict.


Hope this works for you all,
BW,
Merylee



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TiBook Sleep Problem Workaround
Authored by: wkiri on Apr 01, '04 11:01:58PM

I've had this same problem, but it is usually caused by the laptop closing, and then getting bumped open and closed without getting to fully wake up or sleep. Since this is only an issue when I'm transporting it from home/work/travel, it only happens when it's on battery power, and therefore one solution is to "disable wake from sleep when the lid is opened, when battery power is used". You can do this with:

sudo pmset -b lidwake 0

I hope this solves your problem, too.

Kiri



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TiBook Sleep Problem Workaround
Authored by: wkiri on Apr 01, '04 11:03:06PM

Actually, my comment was supposed to apply to the post before this one.



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An Easy solution in 10.2
Authored by: BrunoUsesBBEdit on Dec 31, '02 09:06:03AM

I'm not sure when this became available but, I know it works in 10.2

Hitting the power button pops up a dialog with the options to Restart, Sleep, Cancel, Shut Down. At this point the 'S' key will shortcut to Sleep.

Knowing this you can "blindly" force a PowerBook to re-enter sleep. And since it detects displays upon waking, problem solved.

It would be nice if there were a shortcut for the "detect displays" option in the Displays menu. This may be possible with one of the keyboard shortcut maker applications.

-- Hope this helps.

I noticed that when my machine (PB G4/400) refuses to wake from sleep, it usually refuses to go back to sleep when the lid is closed. This is because I have beat the poor thing to death and the lid sometimes will come open enough to wake it from sleep when I am handling it. (carrying, or removing it from the bag) So when being jarred wakes it up and it finds the lid closed, it assumes that it doesn't have a monitor to use. So it goes on without one.



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An Easy solution in 10.2
Authored by: RobWBartel on Feb 15, '03 08:25:07PM

On my original TiBook, at least, Command-F2 (brightness up) does detect displays from the keyboard



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An Easy solution in 10.2
Authored by: dpearre on Mar 17, '03 06:02:18PM

another easy way to Detect Displays from the desktop is to turn on the "Show displays in menu bar" option in the display control panel -- don't know why this isn't turned on by default, but i change resolutions and (because of my ti-400's lousy graphics card) color depth without hastle via the menu icon.



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