IMac battery power?

Hello. I wish to purchase an iMac 21". i live in an area with frequent power cuts and the power can be off for up to 4 hours. Can the iMac operate on battery? Does it have a battery? If so, how long does it function on battery power?

It does not have a battery. You need a massive Uninterruptable Power Supply (UPS.) I recommend visiting APC.

Similar Messages

Battery power for ibook g4

so as many of you ibook users know, all batteries die eventually. i have an early 2004 ibook and i get about 40 minutes of battery power. i am going to purchase a new battery from apple. i would like to know how i can get the
MOST POSSIBLE LIFE out of my battery so i dont have to change it every year and a half. i know its not good to leave on the charger, so should i drain it completely before i charge it again? any suggestions would be great! thankyou
-danny
iBook G4 1.07 GHz PowerPC Mac OS X (10.4.6) 768 MB of RAM ipod 5g 30 gig

Hi Danny,
You may want to look at the following (they will help you achieve your goal)...
Knowledge Base Document #86284 about Calibrating your computer's battery for best performance
Knowledge Base Document #500666 has Tips for maximizing your PowerBook and iBook battery charge
Lithium-ion Batteries
About Notebook Batteries
Jon
Mac Mini 1.42Ghz, iPod (All), Airport (Graphite & Express), G4 1.33Ghz iBook, G4 iMac 1Ghz, G3 500Mhz, iBook iMac 233Mhz, eMate, Power Mac 5400 LC, PowerBook 540c, Macintosh 128K, Apple //e, Apple //, and some more... Mac OS X (10.4.5) Moto Razr, iLife '06, SmartDisk 160Gb, Apple BT Mouse, Sight..

MBP running out of battery power before sleeping - Help!

Hi
My MacBook Pro has been running out of battery power before the memory-saving sleep mode kicks in, so it dies with a little click of the HD. It's not a hibernation state as when I reattach the power supply it boots up a new session.
I've noticed this since upgrading to Snow Leopard last year, but put it down to an old battery that had 45% charge and wasn't powering the MBP properly. I now have a replacement A1175 5600mAh battery which is giving me 2-3hrs usage (which I'm pleased at), but now it still dies before sleeping!
I have tried to cycle the new battery, but can't. I have reset the SMC several times, with no effect.
I used to cycle the battery every week or two, running it down until it would no longer wake from sleep, recharge overnight etc, but now I can't do this because it will die before sleeping!
I've read quite a few articles over the net about this issue, but there seems like no cure. It's really annoying me now as I frequently work on the move and a dying MBP could potentially be disastrous.
Can anyone shed some light on this issue? Is there something I haven't tried yet? I think it's a late '06 MBP.
From System Profiler:
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro2,2
Processor Name: Intel Core 2 Duo
Processor Speed: 2.16 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 3 GB
Bus Speed: 667 MHz
Boot ROM Version: MBP22.00A5.B07
SMC Version (system): 1.12f5
Battery Information:
Model Information:
Serial Number: ˇ{ïwl"Ó*%#Û˙� $«\
Manufacturer: SMP
Device name: ASMB012
Pack Lot Code: a0b0
PCB Lot Code: c0f1
Firmware Version: 8800
Hardware Revision: 0000
Cell Revision: 0000
Charge Information:
Charge remaining (mAh): 1320
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 5315
Health Information:
Cycle count: 12
Condition: Normal
Battery Installed: Yes
Amperage (mA): 1500
Voltage (mV): 11560
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 10
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: No
Current Power Source: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 0
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: No
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
ID: 0x0100
Wattage (W): 85
Revision: 0x0000
Family: 0x00ba
Serial Number: 0x001e1900
Charging: Yes

If you are not getting a warning, then there is something amiss with your battery. If a SMC reset and calibration does not fix the problem, then you may need to make an appointment at the genius bar and arrange to have your battery tested.
My old battery started doing the same thing--shutting down without warning. I replaced it, and the replacement battery started doing the exact same thing. I then returned the replacement, and the next replacement battery behaves in a normal fashion.
My first battery was worn out. My second battery was defective. My third battery is good.
Your battery should still be under warranty. Go back to where you got it and show them what it is doing and see if you can get a replacement.
Good luck!

MBP (13-inch, early 2011) goes into hibernation instead of safe sleep upon closing the lid (only when using battery power)

MBP details
13-inch MacBook Pro, early 2011 (model identifier: MacBookPro8,1)
Running Yosemite, OS X 10.10.1 (however, problem started while using Mavericks)
2.5 GHz Intel Core i5
4 GB memory
Symptoms
* the MBP goes into hibernation instead of sleep upon closing the lid on battery power (i.e., when AC adapter is NOT connected)
-- problem does not occur when AC adapter is connected
* putting the computer to sleep by other means does not induce the problem; these other means include:
-- [i] option+command+Power,
-- [ii] Apple Icon --> Sleep,
-- [iii] in Terminal: pmset sleepnow
* the battery is NOT getting drained at all; if I close the lid on 87%, the battery is still at about 87% when I get the MBP back up and running
To be as clear as possible:
(1) MBP is on and in use (power source: battery); battery is at X%
(2) the lid is then closed
(3) the battery indicator light glows bright for about 10 seconds, then shuts off, and with it so does the MBP (all fans and sounds cease)
(4) opening the lid and pressing any key on the keyboard does nothing (the computer is not sleeping)
(5) to turn the MBP back on, I must hit the power button once; this brings up and the gray screen and loading bar indicative of returning from hibernation
(6) log in; battery is still at X%
Attempted Solutions / Fixes
There are Apple Discussions addressing similar MBP issues, many of which at least have work-arounds, if not full-blown solutions. However, I have tried many of the proposed work-arounds and solutions; nothing has solved my problem. Such attempted solutions include:
* made sure EFI/SMC firmware was up to date
* updated all software
* logged in as a different user
* booted in Safe Mode
* reset the PRAM
* repaired disk permissions using Disk Utility
* repaired additional disk permissions in recovery mode (a la this chron.com advice)
* ran the Apple Hardware Test multiple times (short test while plugged in, short test on battery, extended test while plugged in, extended test on battery)
* booted from an external known-good OS on USB drive
* reseated the RAM
* used MemTest to test the RAM's health (it was good)
* tested my battery's health with the app Battery Health (it is healthy!)
* booted my computer with one stick of the MBP's original RAM at a time (figured "why not?")
* booted my computer using other sticks of RAM
* checked my power management settings using PMSET in the terminal (e.g., pmset -g); tried various hibernation modes (e.g., sudo pmset -a hibernationmode X, where X=0,1,3, etc)
* searched/grepped through my power management logs and Console messages to look for googleable items (e.g., pmset -g log | grep WORD, where WORD=failure, sleep, etc); still have not found help online
* brought the MBP to a Mac Genius
-- he ran some further tests, but found nothing;
-- he re-installed my OS as a hopeful-hail-mary-just-maybe-last-ditch effort; the problem persisted!
-- we both agreed that we had ruled out a software cause
-- he offered me to leave my MBP to get fixed for a flat fee of $300.00 (which after a couple weeks of trying to figure this out is starting to sound more and more reasonable)
Given that it is likely not a software issue, what hardware might it be? By booting from an OS on an external drive, I think I've ruled out a bad hard drive or hard drive cable. Also, given that inducing sleep in any way other than closing the MBP's lid does not cause the problem, it seems there might be a wire (or something) in the hinge section of the MBP that gets moved when the lid is closed possibly causing some kind of short circuit...or something.
If someone with more experience interpreting Console messages, for example, can help, I'd be happy to provide some logs, or any additional information.
Thank you for your time and consideration.

Ok, this is a crazy-simple, quasi-embarrassing fix, but I'll post it anyway just in case anyone is having a similar problem (for example, this guy: Changes to pmset being ignored).
Some time around late last August / early September (2014) this issue began happening for me (specifically, issue = closing lid while on battery power induces hibernation / shut down instead of sleep --- independent of hibernation mode). Maybe it was when I upgraded to Yosemite (not sure what the exact date of that was). As detailed in my original post, I frantically tried everything I could think of... At that time, however, I had quite a few presentations and posters to create and present at meetings and conferences, so I held off fixing it for a couple of months and returned to it this past week, where I tried a few more things listed above, but again to no avail...
This morning, I simply tried fudging around with all my power management settings again (via pmset in Terminal). The simplicity of the fix surprised me. But now that I understand it, I know it is likely the same fix for other threads I've read, such as the one above:
(TLDR in bold)
(1) Take note of your power management settings (Terminal: pmset -g custom)
(2) Is the "standby" flag set to 0? If so, set it to 1. Wa-la! Done.
This fix is crazy and embarrassing b/c I was so close to it for so long. I tried changing my hibernation modes multiple times (sudo pmset -a hibernatemode X, where X=0,1,3,25,etc). I read about manipulating other PMSET settings that helped other people with newer MBPs, like "autopoweroff" and "autopoweroffdelay" --- settings that I do not have on the MBP early 2011 (check your settings: pmset -g cap). And most amazingly of all, I even messed with the "standbydelay" setting, trying to make it so long that my computer should never go into hibernation... Yet, from what I can tell by looking over my notes, I never simply set "standby" from 0 to 1.
There are interesting questions that arise due to this fix. For example, why did this problem persist on clean installs of OS Yosemite? Is "standby" being set to 0 the Yosemite default? I'm not sure. If it is, then Kappy was right: this was normal behavior... It just wasn't always the normal behavior...at least not for my MBP. Normal behavior (hibernatemode 3) used to be (and now is again) that the MBP goes into safe sleep, and then only after an allotted amount of time will it go into full-blown hibernation.
NOTE: the "standby" and "standbydelay" PMSET settings are not available in some earlier MBP models (e.g., my brother has a 2010 and does not have these settings); so if you're having a similar problem with an earlier model, this fix might not be of any help to you.

I want to upgrade my ( iMAC 800Mhz Power PC G4 & iBOOK 700Mhz PC G3)

Hello!
I want to upgrade if possible over 1GB ? my now slow computer ( iMAC 800Mhz Power PC G4 ) and a ( iBOOK 700Mhz Power PC G3 ) which I don't think I'm confident enough to change the internal memory but the user memory I think I can attempt!
So I'd like to know what type of ram or "model numbers" I should be looking for if I what to upgrade my empty DIMMO /J22 slot to a 1GB ?
Keeping in mind I still have a 256GB factory standard ram in place (256 SDRAM PC133U-333)
i.e. how many pins "184 0r 200" do I need for for my model?
I seen lots off ram types like "Kingston PC2700, 333MHZ DDR 1GB memory "
PC2700 333MHZ is this the model number I should be looking for to upgrade to 1.256?
and for my ( iBOOK 700Mhz Power PC G3 ) is this also able to be upgraded to beyond the the original ibook specs just like it is suggested for the iMAC? which I also have only the original 256 SDRAM and a empty ram slot! again I not sure what model or type of ram I should be looking for here? or what is the max. it can be upgraded to with the new high density ram everyone is talking about!
I know you guy's must seem to answer these by now simple question for you! am sorry I don't have something more challenging for you but I do need your help with this one please!
since you've already done this and seem to know what your doing! I would like to ask for your help or anyone who know the answers to my questions ?
Thank you in advance!
Millenniumbug

Unfortunatley, only imac models above 1ghz can take module of 1GB. your model can accomadate 512mb bringing it up to 768Mb which will make a decent improvement.
go to crucial.com and input your imac model to get the right type for your system. it's also best to buy from mac friendly companies as some cheaper modules wont work
best of luck

Mac Book Pro Shuts down on Battery Power

First, I apologize to everyone for asking this question yet again. I have gone through the previous posts and I am still at a loss. So thank you for your patience and help.
When I run my MacBook pro on battery power it will run for around 15 - 20 minutes... then just be dead. No low battery warning. No shut down. Just poof and gone.
I have looked at my power settings to see if my battery is bad. But I don't have a Status indicator in there. I see This:
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 0
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 0
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Battery Information:
Battery Installed: Yes
First low level warning: No
Full Charge Capacity (mAh): 1185
Remaining Capacity (mAh): 1185
Amperage (mA): 0
Voltage (mV): 12426
Cycle Count: 174
AC Charger Information:
Connected: Yes
Charging: No
Hardware Configuration:
UPS Installed: No
I have also looked at the directions on http://support.apple.com/kb/ht1490 about how to calibrate my battery. It says:
" 1. Plug in the power adapter and fully charge your PowerBook's battery until the light ring or LED on the power adapter plug changes to green and the onscreen meter in the menu bar indicates that the battery is fully charged.
2. Allow the battery to rest in the fully charged state for at least two hours. You may use your computer during this time as long as the adapter is plugged in.
3. Disconnect the power adapter while the computer still on and start running the computer off battery power. You may use your computer during this time. When your battery gets low, the low battery warning dialog appears on the screen.
4. At this point, save your work. Continue to use your computer; when the battery gets very low, the computer will automatically go to sleep.
5. Turn off the computer or allow it to sleep for five hours or more.
6. Connect the power adapter and leave it connected until the battery is fully charged again."
Only I have a problem withe step 3 and 4. I don't get the warning, and it doesn't go to sleep. So, I don't think any calibration is working.
Do I need a new battery? Should I just buy one? This computer is WAY out of warranty and I never purchased and apple care plan for it.
Again, than you for any and all advice on what I may need to do.

I think it's time to buy a new battery

MacBook Pro C2D shuts down instead of going to sleep (on battery power)

dear macusers,
it happended the first time 2 days ago, today again: while my MacBook Pro is inactive on battery power the screen dims, then turns black like usually, but then it doesn't go to sleep, instead it shuts down. I have 10.4.8 installed, i didn't do the summertime update. I took a look at the log files (/var/log) but couldn't find something strange. Never had a problem using my machine...
anybody has the same issue?
sorry for my bad english!
john

When that happened to me a couple months ago with my Powerbook G4 it happened to be the battery itself. I did the apple battery exchange since there was a recall on my battery. I use my notebook primarily as a desktop replacement and hadn't noticed the problem until months later when I unplugged the notebook, seconds later the notebook would shutdown and even reset the system clock.
Applecare couldn't figure it out so I went to my friends house and swapped batteries to test and sure enough, when I put my battery into his computer, it shut his down and reset his clock.
Check the battery.

HT201263 When my Ipod touch is in autolock I can only restart the device holding the sleep/wake button and home button at the same time for 10 seconds. While in auto-lock it is using battery power and will do so until the battery is drained. Whats wrong

When my Ipod touch is in autolock I can only restart the device holding the sleep/wake button and home button at the same time for 10 seconds. While in auto-lock it is using battery power and will do so until the battery is drained. Whats wrong?

- Try a reset. Nothing is lost:
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears
- Connect the iPod to your computer and try to restore via iTunes. Try placing in Recovery mode if necessary to restore.
- If you can't turn the iPod completely off, let the batter fully drain. After charging for at lerast anhour try again
- If still not successful time for an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.

How can i use an external screen on mountain lion when i'm running on battery power?

Hey all:
I just upgraded from snow leopard to Mountain Lion, and i use external screen, keyboard and mouse all the time....
On Mountain Lion it's perfect when the power adaptor is connected as soon as you close the LID your external screen becomes the primary screeen and it's fully functional desktop (no mirroring or extension screen)
But the problem is when i'm in battery power, in snow leopard i used to close my lid my mac goes to sleep then i wake it up using the mouse and immediately open the LID so it doesn't go to sleep again and now i'm running on battery power with a primary external screen.
Any idea how to use an external screen on mountain lion while i'm on battery power? (i know i can use mirroring but i want just 1 primary screen and the laptop screen would be turned off )
Thanks for the help.....
Sherif

Sherif Daniel wrote:
my question is how to use an external display with mountain lion when i'm running on the laptop battery not connecting the ac adaptor?
Thanks again
You can't with the lid closed, that's one of the rules for clamshell mode.
http://support.apple.com/kb/ht3131

Laptop freezes while on battery power.

I have Arch 64 bit install on a Thinkpad T510. While the laptop is plugged into power, it is rock solid and can run for days without a crash.
The laptop freezes up quite often when it is running on battery power. After anything from 15 minutes to an hour, it will probably freeze. I cannot switch to a tty, I just have to do a hard reset.
This is what xsession-errors says:
/etc/gdm/Xsession: Beginning session setup...
localuser:theo being added to access control list
/etc/gdm/Xsession: Setup done, will execute: /usr/bin/ssh-agent -- gnome-session
GNOME_KEYRING_CONTROL=/tmp/keyring-yX87BA
GNOME_KEYRING_CONTROL=/tmp/keyring-yX87BA
SSH_AUTH_SOCK=/tmp/keyring-yX87BA/ssh
GPG_AGENT_INFO=/tmp/keyring-yX87BA/gpg:0:1
GNOME_KEYRING_CONTROL=/tmp/keyring-yX87BA
SSH_AUTH_SOCK=/tmp/keyring-yX87BA/ssh
GNOME_KEYRING_CONTROL=/tmp/keyring-yX87BA
SSH_AUTH_SOCK=/tmp/keyring-yX87BA/ssh
GPG_AGENT_INFO=/tmp/keyring-yX87BA/gpg:0:1
Initializing tracker-store...
Tracker-Message: Setting up monitor for changes to config file:'/home/theo/.config/tracker/tracker-store.cfg'
Failed to play sound: File or data not found
Initializing tracker-miner-fs...
Tracker-Message: Setting up monitor for changes to config file:'/home/theo/.config/tracker/tracker-miner-fs.cfg'
** (gsynaptics-init:910): WARNING **: Using synclient
** Message: applet now removed from the notification area
(nautilus:923): NA-core-DEBUG: na_settings_register_type
(nautilus:923): NA-core-DEBUG: na_settings_class_init: klass=0x260af90
(nautilus:923): NA-core-DEBUG: na_settings_instance_init: instance=0x7ff0f8001720 (NASettings), klass=0x260af90
(nautilus:923): NA-core-DEBUG: na_settings_new: reading mandatory configuration
Tracker-Message: Setting up monitor for changes to config file:'/home/theo/.config/tracker/tracker-store.cfg'
(nautilus:923): NA-core-DEBUG: na_core_utils_dir_list_perms: dir=/home/theo/.config/nautilus-actions, message=na_settings_new, out=drwxr-x--- 2 theo users 4096 Mar 16 23:01 /home/theo/.config/nautilus-actions
(nautilus:923): NA-core-DEBUG: na_core_utils_dir_list_perms: dir=/home/theo/.config/nautilus-actions, message=na_settings_new, err=
(nautilus:923): NA-core-DEBUG: na_settings_new: reading user configuration
Starting log:
File:'/home/theo/.local/share/tracker/tracker-store.log'
Starting log:
File:'/home/theo/.local/share/tracker/tracker-miner-fs.log'
(nautilus:923): NA-core-DEBUG: na_boxed_register_type
(nautilus:923): NA-core-DEBUG: na_boxed_class_init: klass=0x25f72a0
(nautilus:923): NA-core-DEBUG: na_boxed_instance_init: instance=0x260bb60 (NABoxed), klass=0x25f72a0
(tracker-store:906): Tracker-CRITICAL **: D-Bus service name:'org.freedesktop.Tracker1' is already taken, perhaps the daemon is already running?
(gnome-shell:896): folks-DEBUG: individual-aggregator.vala:310: Setting primary store IDs to defaults.
(gnome-shell:896): folks-DEBUG: individual-aggregator.vala:338: Primary store IDs are 'eds' and 'system'.
Initializing nautilus-open-terminal extension
JS ERROR: !!! WARNING: 'anonymous function does not always return a value'
JS ERROR: !!! WARNING: file '/home/theo/.local/share/gnome-shell/extensions/[email protected]/imap.js' line 105 exception 0 number 157
JS ERROR: !!! WARNING: 'function BigInteger does not always return a value'
JS ERROR: !!! WARNING: file '/home/theo/.local/share/gnome-shell/extensions/[email protected]/biginteger.js' line 114 exception 0 number 110
JS LOG: GNOME Shell started at Fri Mar 16 2012 23:31:50 GMT+0000 (GMT)
Window manager warning: CurrentTime used to choose focus window; focus window may not be correct.
Window manager warning: Got a request to focus the no_focus_window with a timestamp of 0. This shouldn't happen!
** Message: applet now embedded in the notification area
(gnome-shell:896): folks-WARNING **: Failed to find primary PersonaStore with type ID 'eds' and ID 'system'.
Individuals will not be linked properly and creating new links between Personas will not work.
The configured primary PersonaStore's backend may not be installed. If you are unsure, check with your distribution.
(gnome-settings-daemon:856): color-plugin-WARNING **: failed to get edid: unable to get EDID for output
(tracker-miner-fs:905): Tracker-CRITICAL **: Empty locale file found at '/home/theo/.cache/tracker/miner-applications-locale.txt'
Gtk-Message: The filename "[\345\244\251\344\275\277\345\212\250\346\274\253][110921]Kalafina - 3rd Album\343\200\214After Eden\343\200\215[320K].rar" couldn't be converted to UTF-8. (try setting the environment variable G_FILENAME_ENCODING): Invalid byte sequence in conversion input
Gtk-Message: The filename "[\345\244\251\344\275\277\345\212\250\346\274\253][110921]Kalafina - 3rd Album\343\200\214After Eden\343\200\215[320K].rar" couldn't be converted to UTF-8. (try setting the environment variable G_FILENAME_ENCODING): Invalid byte sequence in conversion input
Gtk-Message: The filename "[\345\244\251\344\275\277\345\212\250\346\274\253][110921]Kalafina - 3rd Album\343\200\214After Eden\343\200\215[320K].rar" couldn't be converted to UTF-8. (try setting the environment variable G_FILENAME_ENCODING): Invalid byte sequence in conversion input
(tracker-miner-fs:905): Tracker-WARNING **: Couldn't properly parse desktop file 'file:///usr/share/applications/brasero-nautilus.desktop': 'Desktop file doesn't contain type'
(tracker-miner-fs:905): Tracker-CRITICAL **: Empty locale file found at '/home/theo/.cache/tracker/miner-applications-locale.txt'
[1331940708,000,xklavier.c:xkl_engine_start_listen/] The backend does not require manual layout management - but it is provided by the application
=== Updating for primary Configuration ===
Clone: false
Output: Unknown attached to default
status: on
width: 1600
height: 900
rate: 104
primary: true
position: 0 0
(gnome-settings-daemon:856): libcolord-CRITICAL **: cd_device_get_id: assertion `CD_IS_DEVICE (device)' failed
(gnome-settings-daemon:856): color-plugin-WARNING **: not found device (null): Failed to FindDeviceByProperty: GDBus.Error:org.freedesktop.ColorManager.Failed: property match 'XRANDR_name'='default' does not exist
(gnome-settings-daemon:856): libcolord-CRITICAL **: cd_device_get_id: assertion `CD_IS_DEVICE (device)' failed
(gnome-settings-daemon:856): color-plugin-WARNING **: not found device (null): Failed to FindDeviceByProperty: GDBus.Error:org.freedesktop.ColorManager.Failed: property match 'XRANDR_name'='default' does not exist
(gnome-settings-daemon:856): libcolord-CRITICAL **: cd_device_get_id: assertion `CD_IS_DEVICE (device)' failed
(gnome-settings-daemon:856): color-plugin-WARNING **: not found device (null): Failed to FindDeviceByProperty: GDBus.Error:org.freedesktop.ColorManager.Failed: property match 'XRANDR_name'='default' does not exist
(gnome-settings-daemon:856): libcolord-CRITICAL **: cd_device_get_id: assertion `CD_IS_DEVICE (device)' failed
(gnome-settings-daemon:856): color-plugin-WARNING **: not found device (null): Failed to FindDeviceByProperty: GDBus.Error:org.freedesktop.ColorManager.Failed: property match 'XRANDR_name'='default' does not exist
ACR (Component): component init
Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x260008d (Nightly)
Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed.
I'm not sure if tracker could be causing the problem, or if it is something else.
I have the discrete graphics card enabled - NVIDIA Corporation GT218 [NVS 3100M]

It might not necessarily be caused by loss of power, but maybe if the battery power dips? Or if the battery gets too hot and something overheats, then that could cause freezing. I'm only going by what I've found on google.
Anyway, I found another thread (not sure why I didn't see it before) that suggests that it might be caused by bluetooth (bluez specifically) https://bbs.archlinux.org/viewtopic.php?id=115814, but it seems like that was more of a locking up problem than freezing completely. I've remove bluez and disabled bluetooth for now anyway (unfortunately can't remove it completely because I'm on Gnome Shell) and I'll run on battery for a good while and see if things freeze again.
EDIT: also followed this - https://wiki.archlinux.org/index.php/HDAPS in case the problem was caused by the hard drive being moved about.
Last edited by themusicalduck (2012-03-28 22:11:21)

1st gen. iMac G5 power supply failure

Hi, all!
My 20" iMac G5 here at work collapsed and died on me about a week ago. The computer just deactivated abruptly; I actually had thought that I had kicked the plug or stepped on the power bar by mistake. I restarted it, and it worked for twenty minutes before dying again. Now it's entirely unresponsive. Having read up on the matter here and in the Mac support pages, I'm quite sure the power supply has failed. I'm in the process of finding out whether the computer is still covered under Apple's Repair Extension Program. (http://www.apple.com/support/imac/repairextensionprogram/ - I know the iMac model is correct, my serial number matches the range, I'm just not sure if the computer is less than three years old.)
Anyway, the important thing for me is the hard drive, not the machine itself. We're entirely Mac-based here at work, so there is no shortage of machines for me to work on (I've already replaced my old machine with a much newer Intel-based iMac), but I would very much like to retrieve my data from my old hard disk. I've downloaded the DIY guide for opening the 20" iMac G5 and removing the hard drive, but I need some advice on the best plan of action. Should I then open another, working G5, remove its hard drive, insert my old hard drive and transfer my files off to my new iMac through our company server? Or is there another way to approach it? Is the hard drive on my 20" first gen G5 compatible with newer mac models, or am I going to run into problems with connectors, physical disk size, etc.? Or, should I just leave well enough alone and leave the entire operation to a Mac Genius?
This will be my first time opening an iMac. I believe that I can open the machines and remove-replace the hard drives without voiding any warranties, correct?
Thanks so much in advance for your help and advice!
Adam

I am on the phone right now with a product specialist about my iMac G5 power supply issues. Kind of ***** because he has, in so many words, said that the Genius is the Alpha and Omega and can extend the 3 year coverage. For me that is great except that the Apple store is over an hour away. I don't understand why the dude on the phone can't pull the switch and make it happen as well.
Factor in:
Unplugging iMac G5 and all peripherals
Loading it in the car
Driving an hour
Carrying it into the Mall (apple store)
Waiting for my Genius appointment
More than likely getting it fixed for free (from the sounds of things)
Driving back after it is fixed
Doing everything listed in reverse.
Would it just be easier to pay the $108 for a new power supply, wait a few days, undo some screws, and BAM! it works again?
Update. Off the phone now. The product specialist flexed his muscles, back handed the Genius to gain authority, and basically stated that they WILL DEFINITELY repair either the power supply or the logic board or both if needed. I have already had them replace the logic board once. BUT, I still have to load it up and take it to the Apple Store. Boo.

Battery, Power, Deep Sleep and Spotlight problems after 10.9.4 update

Hi, I have a Macbook Pro 8,1 13in (Late 2011). I updated to the latest version of Mavericks (10.9.4) and iTunes on Sunday, right after that my macbook started to goes into Deep Sleep after closing the lid, even when the battery was 80% of charge. My battery normally lasts for almost 5 hours. After it went to deep sleep, the power bottom does not respond. Also, I have noticed that spotlight process in Monitor was consuming so huge amount of resources. This problem persists in Boot Camp. There is no way to turn the machine up without plugging it to the power cord. Sometimes it charges the battery as usual, sometimes it does not recognize the battery. Suddenly, the mac goes into sleep mode while I'm using it.
I have researching and troubleshooting in order to fix this but no solution. I have reset the PRAM and SMC. I made a backup of my files and installed Mavericks from the ground with external storage in order to erase the entire disk, no solution. I made an Internet Recovery and downgraded it to Lion, it worked for 2 hours and then I upgraded again to Mavericks (10.9.0) and the same problem came again, the upgraded to 10.9.4 and no solution at all.
I have searched on internet and there are other people experiencing this problem but nobody is able to bring a valid solution.
This is my battery's health:
Battery Information:
Model Information:
Serial Number: 9G1450LRJD3MA
Manufacturer: DP
Device Name: bq20z451
Pack Lot Code: 0
PCB Lot Code: 0
Firmware Version: 201
Hardware Revision: 2
Cell Revision: 158
Charge Information:
Charge Remaining (mAh): 3204
Fully Charged: No
Charging: Yes
Full Charge Capacity (mAh): 4859
Health Information:
Cycle Count: 931
Condition: Normal
Battery Installed: Yes
Amperage (mA): 2406
Voltage (mV): 12273
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 10
Wake on AC Change: No
Wake on Clamshell Open: Yes
Wake on LAN: Yes
Current Power Source: Yes
Display Sleep Uses Dim: Yes
PrioritizeNetworkReachabilityOverSleep: 0
Standby Delay: 4200
Standby Enabled: 0
Battery Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 2
Wake on AC Change: No
Wake on Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Standby Delay: 4200
Standby Enabled: 0
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
ID: 0x0100
Wattage (W): 60
Revision: 0x0000
Family: 0x0085
Serial Number: 0x008d9c78
Charging: Yes

Reseting the NVRAM/PRAM doesn't solve my problems.
Hi, since you have performed NVRAM /PRAM reset, try:
Intel-based Macs: Resetting the System Management Controller (SMC)
and if still issues persist, try: OS X: What is Safe Boot, Safe Mode?
Cheers

W520: How to get full speed and turbo on battery power

Here is how you get around the on battery max frequency limitation (of 1.2 GHz, at least for my i7-2620M) and no turbo (well, almost, read on):
0. Assuming you have max performance enabled everywhere possible (BIOS/PowerManager/Windows Power Scheme)
1. Load ThrottleStop.
2. Set the multiplier manually to your maximum multiplier (e.g., 27x for i7-2620M, 23x for i7-2820QM, etc...) or Turbo (which is the setting after your max multiplier).
3a. Enable ThrottleStop
3b. (optional) Check in CPU-Z and make sure that your highest multiplier is being used when the CPU is utilized. If you selected Turbo, you should have turbo enabled at this point.
4. Disable ThrottleStop
5. Exit ThrottleStop, so that it doesn't waste any battery power, since it is no longer needed
This will change the max frequency (and max multiplier) available from whatever Lenovo decided to arbitrarily fix it at (e.g., 1.2GHz) to the correct max frequency (which in my case is 2.7 GHz / 3.2 GHz for turbo). Now your laptop will be able to correctly go from 800MHz to whatever is the max frequency of your CPU, using both EIST and C1E. Turbo will also kick in, if you enabled it in ThrottleStop and the Lenovo PowerManager app will even show it as enabled.
Thanks Unclewebb for letting us get around this stupid max CPU frequency limitation that Lenovo has imposed on us.
Disclaimer:
Do this at your own risk, since Lenovo does not officially support it.
Turn on active cooling, if you do CPU intensive stuff for any prolonged period of time. This will take away some on battery time, but if battery time is of ultimate concern to you, then this change is probably not for you to begin with.
If you go through prolonged periods of CPU intensive activity, you will lower your battery life and produce a lot of battery heat, because you will have a relatively high discharge rate. A high discharge rate reduces both the number of charge cycles and the maximum charge capacity of a Li-Ion battery. I don't know how safe all of this is, so do this at your own risk and probably monitor temperatures along the way. Other laptops can do Turbo and full speed on battery power (e.g., the slim 3 lb Sony Z, with the i7-2620M), but then other laptops have different designs and cooling systems, so who knows how the Lenovo W520 hardware will react to this.

Hi,
I have the opposite problem - my i7-2720QM is fixed at 2.2GHz no matter how hard I spank 1, 2 or all cores, and no matter what System Performance settings I apply. It even runs at this speed, and gives the same bench marks when on battery with the "system performance" set to Low.
No one even knows what the various System Performance settings actuall mean. E.g. Neither Lenvo support nor these forums could tell me what the difference between "Maximum Turbo","Turbo" or even "Low" under "System Performance" in the Lenovo power manager Advanced settings.
I have been trying go get turbo boost to work for 2 months. I have wasted so much time with this machine, I could have bought 2 Macbook pros for the cost of the time lost.
I dont know why Lenovo have disabled the turbo boost (and the opposite, turbo drop?) feature for this CPU - is it deliberate, or incompetence? Its certainly false marketing and extremely annoying that I have to use my ancient PC to do single threaded type work which I know the Laptop can manage if it were not crippled.
So people whos clock speed drops when on battery are the lucky ones. Mone doesnt even if I want it to.

Battery power and redundant shutdown while syncing

This is mostly a suggestion for the folks at apple, but it seems that you can't just E-mail them these days.
When an iPod's battery is low and you plug it in to sync, often times it gets partially through the syncing process and then decides that it doesn't have any power to continue. So, it shuts itself down leaving you with an incomplete sync that restarts all over again when you plug the iPod in.
This is ESPECIALLY problematic when you are the situation that I am in- the one that made me come here and learn how to use discussions -restoring your iPod. I was having a few little errors in the use of my iPod. Nothing serious, mostly just that the artwork was messed up (on the iPod, and not in iTunes). So I figured 'what the heck, restore it, can't do any harm'. I plug the iPod in, hit restore and PRESTO! Beep beep, beep beep, beep beep. The iPod redundantly shut itself down saying that it didn't have enough battery power, rendering all the files that HAD loaded, useless, because the next time you try to sync it starts over from ground zero.
The iPod should be able to charge and sync at the same time. In the event that this is impossible, then the iPod should be able to say to itself "Bob, you're going to die if you keep syncing. Let's take a break and spend some time charging up the old battery." Rather than saying "Bob, you're going to die if you keep syncing. Why don't you just do that, waste the owner's time, and make the world one redundant iPod angrier."
Does anyone else have this problem? Does anyone else agree? or am I just being stupid about the whole thing?

you might try setting the processor performance to reduced
might also try checking the Activity Monitor to see if there is a run away process.

Before I upgraded my iPad mini, you could turn off apps to save battery power by double clicking the control button and then holding your finger on the app button until the minus sign appeared. That doesn't work anymore. How do you turn off the apps wit

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