Brightness low after sleep / screen turn off

Whenever my iMac wakes up from sleep or the screen comes back to life, I have to reset the brightness back to the level I prefer, its not automatically going back to that level but is reset to its lowest level every time...
Any thoughts?
Thanks

What you're experiencing could be normal--it takes the screen a minute or so to "warm up" after it's been asleep for awhile, so when you first turn it on or wake it up, it will look dull.

Similar Messages

MacBook Pro (June 2010) freezing with screen turned off (not sleep)

Hi.
This issue has happened to me two times now. I recently bought a Macbook Pro 13 inch and the problem has happened when I let the computer sitting there without moving anything with its lid opened, after like 20 minutes when i'm going to use it again it has the screen turned off, the fan on and the indicator light half way on constantly but anything would respond, to use it again I have to hold down the power botton until it turns off.
It was not sleeping because I have the sleep timer set to never, what I do have on is the sleep display timer to 15 minutes.
Any ideas?
Thanks

Please help!
Now I got this then of turning it back again and a 3 min loading of the OS.
What could it mean, I don't know how to read this please
Interval Since Last Panic Report: 439785 sec
Panics Since Last Report: 1
Anonymous UUID: 99693572-2AB2-4994-91C1-BA78E287216A
Sun Nov 28 08:09:45 2010
panic(cpu 0 caller 0x2aab55): Kernel trap at 0x00333cc0, type 14=page fault, registers:
CR0: 0x8001003b, CR2: 0x00000010, CR3: 0x0ec75000, CR4: 0x00000668
EAX: 0x00000000, EBX: 0x169c152c, ECX: 0x711f0000, EDX: 0x084f0800
CR2: 0x00000010, EBP: 0x75dc3d98, ESI: 0x169c1504, EDI: 0x00853800
EFL: 0x00010246, EIP: 0x00333cc0, CS: 0x00000008, DS: 0x75dc0010
Error code: 0x00000000
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x75dc3ba8 : 0x21b50c (0x5d42fc 0x75dc3bdc 0x223974 0x0)
0x75dc3bf8 : 0x2aab55 (0x59616c 0x333cc0 0xe 0x596336)
0x75dc3cd8 : 0x2a09a8 (0x75dc3cf0 0x1 0x75dc3d98 0x333cc0)
0x75dc3ce8 : 0x333cc0 (0xe 0x3700048 0x75dc0010 0x2a0010)
0x75dc3d98 : 0x34bd51 (0x169c152c 0xc1d46f0 0x75dc3dc8 0xa284e9c)
0x75dc3db8 : 0x383596 (0x169c1504 0xffff 0x1 0x33b12f)
0x75dc3de8 : 0x392ce4 (0xa284e9c 0x246 0x75dc3e78 0x0)
0x75dc3e08 : 0x4b0d1c (0xa2a6990 0x9 0x0 0x0)
0x75dc3e68 : 0x4b0dc4 (0xa2a6990 0x1 0x75dc3eb8 0x47169e)
0x75dc3e88 : 0x46ce50 (0xa2a6990 0x75dc3ed8 0x8707bc0 0x8a422a0)
0x75dc3ef8 : 0x46ec01 (0x91548b0 0x9d34ee0 0x8a422a0 0x2329f0)
0x75dc3f38 : 0x46ecd2 (0x0 0x46 0x75dc3f5c 0x1)
0x75dc3f78 : 0x4f12e8 (0x8a422a0 0x8b11968 0x85d9ae4 0x54ba08)
0x75dc3fc8 : 0x2a143d (0x8b11964 0x0 0x10 0x8b11964)
BSD process name corresponding to current thread: mDNSResponder
Mac OS version:
10H574
Kernel version:
Darwin Kernel Version 10.5.0: Fri Nov 5 23:20:39 PDT 2010; root:xnu-1504.9.17~1/RELEASE_I386
System model name: MacBookPro7,1 (Mac-F222BEC8)
System uptime in nanoseconds: 300147122741321
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Model: MacBookPro7,1, BootROM MBP71.0039.B0B, 2 processors, Intel Core 2 Duo, 2.4 GHz, 4 GB, SMC 1.62f6
Graphics: NVIDIA GeForce 320M, NVIDIA GeForce 320M, PCI, 256 MB
Memory Module: global_name
AirPort: spairportwireless_card_type_airportextreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.10.131.36.1)
Bluetooth: Version 2.3.8f7, 2 service, 19 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: TOSHIBA MK2555GSXF, 232.89 GB
Serial ATA Device: HL-DT-ST DVDRW GS23N
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8507, 0x24600000
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Screen turns off immediately when setting systemIdleMode to NORMAL after having been in KEEP_AWAKE

I've found a little issue in Android...
In my application I download some files the first time it's run. Since it takes a couple of minutes without user input, the screen turns off automatically. I've found some tablets not only turn off the screen but also interrupt the download altogether when going to sleep, so to avoid this I'm using this to prevent the screen from turning off (is there any other workaround to prevent downloads being interrupted by sleep?):
NativeApplication.nativeApplication.systemIdleMode = SystemIdleMode.KEEP_AWAKE;
Of course, I've also added the WAKE_LOCK and DISABLE_KEYWARD permissions to my app descriptor, so the above code works. The problem is that I don't want the app to stay awake all the time, so after the download finishes, I'm setting the screen back to normal with:
NativeApplication.nativeApplication.systemIdleMode = SystemIdleMode.NORMAL;
But after executing that, the screen goes off immediately, instead of waiting for a minute or so before dimming the screen. It's as if the dimming was triggered already during the download process, but didn't actually happen because of the KEEP_AWAKE setting, and then when switching to NORMAL, the screen dimming takes place immediately so it turns off.
Is this an intended behaviour or should I file a bug?
How can I manage to set the systemIdleMode to NORMAL but still have the screen on waiting a bit before going to sleep? Turning off the screen as soon as the download is finished is confusing for the user, who might think the app has frozen when it's really just in sleep mode (and the user has to unlock the screen before going back to the app).
This happens in just about any version of AIR 3.x (and probably below).
Also, it happens in iOS as well, but it's less dramatic because the screen just dims a little (app is still visible) when setting systemIdleMode to NORMAL, instead of turning off completely and locking the screen, which is the behaviour in Android.

undereyes wrote:
this work with iOS 6.0, me app lock
What do you mean? That it doesn't happen in iOS 6.0 anymore? What do you mean with "me app lock"? Please, elaborate

I downgrad my iphone from ios5 to ios 4.3.3 and after restoring the ios 4.3.3 i fixed all itunes error but after that my i phone screen turned off and the apple logo didnt shows up any more what ever i did my iphone model 4 gsm

i downgrad my iphone from ios5 to ios 4.3.3 and after restoring the ios 4.3.3 i fixed all itunes error but after that my i phone screen turned off and the apple logo didnt shows up any more what ever i did my iphone model 4 gsm and fyi i try all the ways to turn it on but it didnt sucsses

roaminggnome
thanks for helping but i didnt know that is the downgrade is forbidden and i ask for help and u didnt help me so i just want to thank u for telling me that is the downgrade is forbidden >>> but now i didnt have i phone any more so thank u so much again >>>>

Screen turns off after a few minutes and needs to be closed then opened

hi, as the title suggests my powerbook screen turns off after a few minutes before my screensaver is set to come on and when i come back and press a key or move the pad it wont start up so i need to close the powerbook then open it up again for it to activate. its not a huge problem but my programs which connect to the internet seem to lose their connection when i open it up again. is this normal? is there a setting i can change?
thanks
ross

Is there a way to "disable" Standby, Suspend and Off just when watching movies (in fullscreen or not)? I want them to do what they usually do in all other cases.
Setting them to 0 in xorg.conf does the thing, but I need that functionality only when I'm wathing movies. Making a script that alters adjustments in xorg.conf isn't the best solution - you'd have to restart X every time you want to watch a movie .
Cheers,
Daniel

Hello sir my iphone screen turns off after using 2-5 minutes what would be the problem please help me out

hello sir my iphone screen turns off after using 2-5 minutes what would be the problem please help me out

To make sure that this is not software related, set it back to factory settings, without using any backup data afterwards. Set up the rest of the personal settings manually and test the phone. If it still does not work, this is a hardware issue and the phone has to be serviced by Apple or an Authorized Apple Service Provider:
Use iTunes to restore your iOS device to factory settings - Apple Support
Find an Apple Authorized Service Provider
iPhone - Contact Support - Apple Support

Macbook Pro loses Airport Extreme after the Screen switches off.

I am experiencing problems where my MBP is losing the network connection with my Airport Extreme after the screen switches off (the MBP is not does not sleep).
I could be watching a video streaming from my MBP to my ATV, and all of a sudden it stops, and the ATV loses its connection with my MBP. On looking at the MBP it is still connected to the internet, but it can't physically see my Airport Extreme. I've opened the Airport Utilities program and it cannot find the Airport Extreme, even though I am still connected to it.
The only way I can fix it is to turn off the Airport on my MBP and then turn it back on and everything comes right.
This has only just started happening in the last week or so, and I have never had a problem before.
I've had a look through the forums, and on Google, but others seem to be losing their internet, etc. I am still able to access the internet, just not anything connected the Airport Extreme (e.g. USB harddrive).

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Hp pavilion 15 screen turn off for few second when i turn on or off charger

Hello,
I bought new hp pavilion 15. i notice many time when i turn on or off my charger, screen turn off for few second then after few second screen turn on. please help me out its furstating me .
This question was solved.
View Solution.

>> It is customary and in this case Necessary for you to provide the exact model of Notebook you have a problem-with. [ There are MANY variations of HP Pavilion 15-T Models, for example. ]
>> You should always be sure you have installed/applied ALL updates for all of your Notebook's hardware devices, and ALL Windows Updates labeled "Important" and ALL "Optional"-section Windows Updates for any hardware device in your Notebook which the Windows Updates service detects (and offers an Update for).
>> For example, this link: http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?os=4158&lc=en&cc=us&dlc=en&sw_lang=&product=6787... has the latest HP Drivers and Patches for a specific variant of the Pavilion 15-T.
>> AFTER you are certain you have all the latest drivers and patches in-place, you can try the 'old Trick' as follows: Shutdown Windows; when your Notebook has turned-Off completely (after Shutdown completes), THEN remove the AC Adapter connector and remove the BatteryPack.
>> Hold DOWN the power-button continuously for a full 62 seconds. Then put your BatteryPack back in your Notebook. Do NOT connect your AC Adapter yet. Power-On the Notebook and Logon into Windows. Check the Control Panel\Power Options settings and find out the Charge Level of your BatteryPack. If it is below 25%, then (and only then) plug in your AC Adapter and connect it to your Notebook... and let the BatteryPack charge up "completely" to 98-100% Level. *Note: if your Adapter has a removable AC cord-connector, be certain that connection is 'tight'. <Do NOT stick your fingers or ANY object into any AC Adapter!> If you even think your AC Adapter is faulty, GET A NEW ONE! Damaging a $400-$800 Notebook PC is NOT worth it, versus the cost of a New Adapter.
>> Use the built-in Help functions of your Notebook to find out how to DISABLE(!) "Hibernation", and eliminate that TROUBLE-CAUSING 'feature' of Windows PCs. When you have done so, always REStart Windows, to be certain the changes are applied. *Many changes and Updates take place 'Fully' only "during" Shutdown and/or "during" Startup of Windows PCs. [While Windows O.S. is "running", most of it's System Files are LOCKED.]
>> FYI: always let your BatteryPack run down to it's Lower setting BEFORE you plug-in your AC Adapter/Charger. Charging any rechargeable BatteryPack at "mid-charge-levels" causes shorter BatteryPack life...

Yoga 2 13 Tablet Screen turns off when in Tablet Mode

I just bought my Yoga 2 13, when I flip it to Tablet mode, the screen turns off. Apparently it goes to sleep. When I open it it turns on again. Do I need to do any adjustments? or is this a defect?

Try updating your drivers first: http://mobilesupport.lenovo.com/us/en/products/laptops-and-netbooks/yoga-series/yoga-2-13-notebook-l...
If that does not help, try a factory reset:
1. Turn off your Yoga 2 13
2. Press the tiny button next to the power button on the right
3. Follow instructions to perform a factory reset
If none of the above attempts have helped you, it is probably a hardware issue.
Jonas
Microsoft MVP: Windows Consumer Expert
Yoga Tablet 2 10 || ThinkPad X1 Carbon (20A7007MPH) || ThinkPad Helix (3698-6EU) || IdeaCentre B540
Twitter: @jonashendrickx

Black screen/turns off random bootcamp windows 7

I have a imac 27" mid 2010 and i am using windows 7 x64 ultimate on bootcamp (3.3 and later 4.0) from snow leopard to lion, i have
recently upgraded my mac with mountain lion.
But after i did upgrade to mountain lion a day later my screen in bootcamp goes black/turns off. I can sometimes hear the sounds when it happens.
The black screen/turn off, is also randomly so its not happening when i do something or opening something. So after a few black-outs i started to get fustrated and i surfed the web for solutions (Option + Alt + P + R), disconnect power cord wait 10 seconds and reconnect, install/uninstall new drivers, reinstalling windows. reinstalling mountain lion and windows but the problem is stil there.
But when using mountain lion i dont have any problems everything works fine.
I think that mountain lion has changed something to the firmware or bios of the system, or changed something to bootcamp?
I really dont know, the only thing i know is i cant use windows as i normally did, and my boss isnt happy when i dont finish my work.
I really need some answers and solutions.
Thanks

Same problem occuring for me, although Windows 7 boots fine in safe mode but when booting in regular mode after the lauch screen it goes black and turns off. Funny thing is that mountain lion didn't seem to be the problem for me instead I believe windows updated it's software for me and then it started happening. Im going to try and reformat partition reinstall windows 7.
oh BTW I'm on Macbook Pro x Retina Display.

S890 screen turns off while playing games

I bought this phone a week ago.Everything about this phone is awesom except one thing. The screen turns off while playing games automatically,which is really annoying. Is there any fix for this??

Graphics card springs to mind;
also, in your game settings, in either options or video settings (or similar). Are the settings correct for your card. I know on a low end PC, "full hardware acceleration" can cause crashing.
I'd still think, it's more a graphics related problem. If you have a big flat screen mintor (e.g 24,27 or even 30") then that, in it's own right needs a good card. Add the game to it and you may have problems. I do take it you have compared the specs with what's required on the box (of the game) and "about this mac/"more info"). All the best.

When screen turn off, my song also turn off.

I bough ipod nano (for my watch) but during I listen music when screen turn off the song will turn off also.
What's wrong.? In the beginning is no problem I can listen non stop music.
After I try to update version (currently my ipod version 1.1) but seem not success yet.

Where you restore? On ipod?
Pls sync with iTune then go to summery tap
and click Restore.

Early 2011 Macbook Pro screen turns off/on

I was listening to music and doing some homework when the screen turned off and then turned back on. The computer wasn't hot at all when it happened. The music also stopped when it happened. After a few seconds it turned back on and everything went back to normal, I had sound and everything. I'm not exactly sure what happened, battery was at 87% so I'm sure it wasn't that. This is the first instance of it happening. If anyone has any advice or knows anything I could do to ensure it doesn't continue or get worse it'd be very much appreciated.

I thought it might have been an update that triggered it, but I guess not. It could be your hardware, but I would try to dianose software reasons first.... such as something else you were running that triggered a resolution change. Whats involved in "doing your homework"?

[SOLVED] Screen turns off on boot at "Loading ACPI Modules"

So, I have been using arch for some time and am really liking it so far. It has replaced Windows on my desktop and am planning to install it on my laptop when I get a chance. I showed my parents some audio apps that run under Linux, and they suddenly wanted arch too! I decided to install arch on their desktop, so after migrating Windows to a larger hard drive, I installed arch onto the remaining space... Everything seemed fine until I tried to boot into the new system. Once it reaches "Loading ACPI Modules" the screen turns off and refuses to turn back on. I have tried everything I could think of (booting into the LiveCD again and running pacman -Syu on the new install, swapping the monitor to a different video port, reinstalling arch) and some solutions I found on the forums (adding acpi=off, noapic, nolapic_sound to the boot line.) The latter made the boot skip ACPI, but the the screen blanks on "Waiting for udev events to be processed"! I'm thinking it might be something to do with the video card (an old Radeon X1300 AGP) but I don't know what to do to fix it... The system doesn't lock up, as even after it blanks I can log in and push Ctrl-G to make a terminal beep! I've tried everything I can think of... If this doesn't work I'll probably try another distro on that machine. The system is:
Intel D845WN Motherboard
1GB PC133 RAM
2.2Ghz Celeron Processor
Radeon X1300 AGP card
Sound Blaster Audigy PCI card
USB 2.0 PCI Card
PCI NIC
Thanks in advance for any advice!
EDIT: Actually, I think it does lock up, as I don't have to hold down the power button to turn it off after the screen blanks.
EDIT AGAIN: Thanks, adding "radeon.setmode=0" worked like a charm! I knew that card was a bit wacky, but I didn't think it would stop the system from booting...
Last edited by Fwirt (2009-10-12 23:24:27)

ok, seems it's the automatic kernel mode setting (KMS) that causes this see:
http://wiki.archlinux.org/index.php/ATI … _.28KMS.29
to get the system to boot, go into the grub menu, edit the boot option (i.e. press 'e') then edit the line that looks like
kernel /vmlinuz26 root=...
and add
radeon.modeset=0
at the end of it. Then your system should start fine. Now add this to the corresponding line in /boot/grub/menu.lst
greetings
Indriði

IMac Intel Core 2 Duo Screen Turning Off

Hello! I have a 17" iMac Intel Core 2 Duo 2ghz Model # 5,1 and the problem is after turning the machine on, and getting logged in, the screen turns off while the backlight is still on forcing me too shut it down via holding the power button down. I cant plug in an external display because that causes the screen to turn off. Im thinking its the logic board (more specifically the video card) that needs to be replaced. Does anybody know what I can do to fix this? Besides buying a new logic board? Maybe its because its running Snow Leopard and cant handle the OSX?

A good chance, but...
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

Brightness low after sleep / screen turn off

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