Brightness and sleep mode don't work. (installed OSX, then recovered win)

I created a full disk backup (whole disk including boot partitions). Then I installed OSX, tried to install some drivers via multibeast. Played a little bit. Then I used the full backup to recover previous OS.

Now, the buttons of screen adjustment don't work. Also when I close the lid, the screen becomes dark but laptop doesn't go to sleep even though all settings are correct. When I press the power button it goes to sleep (as wanted). Other functions seem okay. I checked related drivers via device management, things seems okay. Samsung Update shows everything is up to date.

So I don't know what to do. What can I do to solve the problems?

 

Four basic questions;
1.) what is the version of windows?
2.) what laptop model number?
3.) any additional hardware, SSD etc?
4.) external peripherals, mice etc.?

 

1. windows 10.
2. np900x4d
3. default
4. none

 

1.) Ok so you had upgraded to Windows 10 and all was ok, the screen went to sleep and brightness worked fine?
2.) before this you used W10 to create a backup image?
3.) You then updated to make it a Hackentosh with OSX but decided against it?
4.) you then used the system created image to restore Windows 10?

First and foremost does under the power section the brightness work? I ask as if not this could be a display driver issue and the display could be being over driven.

 

1. yes
2. yes
3. no. i installed osx. then i played with multibeast ( http://www.multibeast.com/). then i stopped playing. then i wanted to use windows 10. then i recovered windows 10 using the full disk backup i created before i installed osx.

the backup was created using acronis true image 2011.

using power settings to adjust brightness work. yes. the buttons dont work. also when the lid is closed, laptop refuse to go to sleep.

 

If by buttons you mean F3 & F4 then this is controlled by settings. This is also known as easy settings but for W10 you need the 8.1 version. if your backup had some remnants of an older version it could be the death of the issue as W10 does not like the software. If there is settings or easy settings remove it and then install the proper version 2.0.0.72. Get it from SW Update or I have a link in the W10 thread here from my server. Once we get this issue we can look at sleep.

 

I never had issues in windows 10 before.

I reinstalled Settings via Samsung Update. Now when I press for example f9 f10 i get a written notice on screen, saying "backlights at max etc". Before I wasn't. However f2 & f3 buttons that control brighness still doesn't work. And I get no notice for those buttons when I press them.

What should I do now?

 

Try uninstalling the graphics driver, rebooting and reinstalling the Samsung version of the graphics driver for this notebook, then reinstall Settings. The Samsung brightness controls work using a driver installed by Settings communicating with the Samsung version of the graphics driver.

If no success there then try resetting the BIOS to default settings if you haven't done so already.

Another possible cause of problems is that if you had Intel Rapid Start Technology installed which was managing the sleep / hibernation then Acronis may not have restored the IRST hibernation partition to exactly the same physical address on the SSD. See the sticky list for a thread about IRST.

John

 

I did all of that but no success.

This wouldn't effect brighness, right?

 

IRST wouldn't affect brightness but could affect the sleep behaviour.

I wonder whether something is messed up with the BIOS and/or UEFI in which case a complete refresh may be needed. Other operating systems can mess up the UEFI data and restoring a disk image may not fix it.

John

 

I agree with you. Any ideas how to refresh BIOS or other things you mentioned?

I modified UEFI and AHCI in bios before installing OSX. Then modified back. Also resetted. I think those values are kept in memory or motherboard and not in hard disk(right?). If that's the case, how would it be possible to reset them other then using BIOS' reset function. I'm a little lost.

 

I also don't understand what is stored where. If you can enter the BIOS then there should be a reset to defaults option. Next, is to over-write the BIOS itself which you can do if you run a manual BIOS update with the right commands. Start here, then look here and finally check for anything else here. You haven't got a bricked computer but the fixes for bricking may clear your problem.

John

 

It might be related to ACPI issues. In that case a simple battery reset will fix it.

 

Can I do that without opening the case?

 

The basic reset process is: Turn the computer off, close it, turn over, poke a straightened paperclip through the little hole in the bottom which has a rectangle with cross in symbol (that's the battery disconnect switch) then open the computer and hold down the power button for a minute (if the computer tries to start then you didn't manage to operate the battery disconnect - try again but don't poke it too hard).

The next level of power reset involves removing the CMOS backup battery, which does involve opening the computer.

John

 

Damn I've wasted so much time trying other things! This solved in a minute! Thanks!

 

It is all part of the learning process.

John

 

Nice to see that this reset does it sometimes! In most of these cases it is NOT enough (though worth trying) and users have to spend a REALLY long time on the more involved procedures that John referred to.

 

This is a years old known ACPI bug. But Samsung does nothing to fix it, they should at least ship their notebooks with a needle included