Lenovo Yoga 2 Pro Flex :: Screen Is Unwantedly Adjusting Brightness
Nov 9, 2013
I've noticed the screen on my Yoga 2 pro tries to automatically adjust the brightness of the display depending on how dark or light the content being displayed is... I want to figure out a way to make it stop. For example, my desktop background is just plain black, and when i got to my desktop, it starts to dim by 4-5 levels lower, and then when I go back to my browser, it reverses and starts to turn up the brightness by 4-5 levels. I've already tinkered with all the power settings and even the advanced power settings to turn of auto dim/automatically adjust brightness etc and all those settings but it still does it.
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Oct 29, 2012
Loving my Yoga 13 so far have had it since Oct 26th when it was released. Like everyone else I had some issues with partitioning yadda yadda yadda, got that taken care of, but lately I've noticed that my screen brightness seems to flicker, ALL the time, when switching from program to program if the color changes on the screen I notice that the brightness changes as well in noticeable increments. I have the automatic brightness setting set to OFF, so I can't imagine that's the reason.
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May 21, 2014
I have just bought the Flex 15. I looked at the power settings and set the brightness, but it is ignoring the settings and always either darker or brighter than I want it. It keeps flickering between being darker and brighter and it's giving me a headache. It is unplugged if that makes a difference, I haven't used it plugged in yet to know if it does it then. How can I stop it? I've looked through the settings and can't find anything.
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Jun 16, 2014
My lenovo G505 recently had to be reformated because there was a blue screen that came up one day that said there was problem with my PC and the error was critical_service_error, something like that. So my dad had to reinstall windows 8 for me using a cd he had that didn't come with the computer I don't believe. So now for some reason my screen brightness isn't adjusting and it's driving me crazy! It's staying on full brightness which I hate! I tried changing it from the personalization screen and nothing happens.
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Jan 18, 2014
I've searched around for how to disable this feature -- it seems completely random and as of today something seems to have changed. Is it possible to disable?
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Dec 17, 2014
the two buttons to control brightness worked fine before I uninstalled the default graphics driver. Now, when I press it I still get the GUI slider, but the brightness does not change. My brightness can be changed fine in the windows power settings. I have reinstalled the same thing I uninstalled, reinstalled Energy Manager, and still it does not work.
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May 19, 2014
I am goint to buy Flex2 14 inch FHD 1920x1080
I have search its maximum LED brightness but I could not find it. I also have chatted with lenovo customer service, but they do not know it.
What is the maximum brightness of Flex2 14 inch FHD 1920x1080 ?
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Jun 24, 2014
My T440p slightly adjusts the screen brightness depending on what is being displayed. For example, on Chrome, one page might have more images, so the screen slightly adjusts brighter or darker. Another page it might slightly adjust again. And it does it when scrolling down a page as well. It is distracting, and I want to disable it? I'm on windows 7.
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Jan 31, 2009
I've reinstalled Windows Vista on my E6400.
I can controll the screen brightness with the [FN] + [UP] / [DOWN] keys, but I can't see if it's up 50%, 80%, 100% etc. Before the reinstall I could se this on the display via some sort of Dell-tool.
Which driver/tool should I install from Dell to be able to see the percentage again?
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Jul 1, 2014
I can hardly see my laptop screen in daylight. All I can see is my own reflection.Is there a way to adjust brightness/contrast
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Jul 23, 2014
I m having an HP pavilion G62016-TX with Windows7 ultimate with 64 bit version,Purchased on Nov'2012.
Recently my PC crashed and when it was reinstalled with all drivers from HP FTP i am having below problems.
When i am adjusting my brightness , it is getting adjusted but the adjusting bar usually shown in the screen is missing.
When i am adjusting my sound , it is getting adjusted but the adjusting bar usually shown in the screen is missing.
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Jul 26, 2013
I have a crack on my screen that starts in the bottom left and spreads to almost the top right. It is not bad and everything works fine except for the touchscreen. Only half the touchscreen works and sometimes the crack causes the other half of the touchscreen to act on its own and its very annoying and messes me up when I try to surf the web or use Microsoft Office. Is there a way I can disable the touchscreen?
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Jul 31, 2013
Has there ben a definitive solution to the problem of the touch screen not working on the Yoga 13?
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Nov 5, 2014
I installed a new video driver today (updated to newest), and all of a sudden my screen is flashing before it rotates when i flip it to tent mode or tablet mode. to be specific, when i flip the screen over, the screen flashes off and back on, before rotating. this has never happened before.
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Aug 25, 2014
My product number is HP 1000-1312TU Notebook PC.And my os is windows 7 ultimate 64x.Since i've changed my os from 8 to 7 i couldn't change brightness of my screen neither with keyboard keys nor with power options setting, i mean they don't work at all.I also searched all the drivers.
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Aug 29, 2014
I have a Lenovo Flex 15 device (i5 version with 4GB ram). I upgraded it with an SSD, reinstalled Win 8.1 in UEFI mode. Everything works fine.
Next I replaced the 4GB memory with an 8GB version (same speed, Kingston) now the machine won't boot anymore, all it shows me is a black screen, both with power switch and novo button. If I reinsert the original ram it boots just fine again. The 8GB ram is not faulty, I tried it in another device and it works. I also tried disabling secure boot in bios but it's the same problem.
Microsoft MVP Windows Platform Development
Lenovo INsider
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Dec 1, 2014
I got my new Yoga 2 Pro last week and the screen rotation worked properly. I decided to wipe the partitions and install my own version of Windows 8.1.
Since then the screen rotation doesn't work. The screen rotation button doesn't do anything and I don't have the 'Enable auto-rotate' checkbox in the resolution screen
In my device manager I have an error on 'HID Sensor collection' saying "This device cannot start" (Code 10). Failed to initialize sensor from HID collection descriptor". I am not sure if this is related.
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Jan 14, 2014
I've been having problems with the dreaded "black screen" when starting my Yoga13 (but only somethimes!). To try and narrow it down, as there seem to be so many things that can cause this, I went into the Bios settings from "F2" and setup it up to ask for a "Power on" password before starting windows.
What I have discovered is that when the black screen occurs its BEFORE the Bios asks for the initial "Power on" password, ie I cannot see the box asking for the password and so Windows has NOT yet started to load. To overcome this, I just press the power button to switch off the system, wait 20seconds and then it will usually start.
Once past this, no errors ever occur on the windows side.
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Dec 10, 2013
I just formatted my yoga 2 pro, downloaded the drivers and ran the Bios Update. I followed the instruction on the read me, ran the .exe, clicked next/ok until the laptop restarted and if I'm not mistaken a red menu with a progress bar showed up. At that point I left and when I came back a few minutes later the laptop was turned on, the screen lighting was on but the display was black, the keyboard backlights were also turned on and everything else was off. The lights on/near the power button that signal if it's turned on and plugged to the AC are turned off.
It's been like this for over 30 minutes now, no signs of progress. I'm not very keen on turning off or unplugging the laptop while flashing the BIOS, but at this point there's not much else I can do.
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Jan 25, 2015
I had a problem for a few days now, sometimes, out of nothing, the screen color turns yellowish....like a warm color....i right click in the home screen, personalize, display, calibrate color, the template for color calibration appears, i enter next...and voilá, it comes back to the cold white color....it just happened as i turn from tent mode to laptop mode to wright this thread
Any other way of disabling this change?
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Feb 12, 2014
I use the latest Energy Management and the latest graphics driver, as well as the latest BIOS version, but the flickering issue persists.
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Apr 18, 2014
I don't think this is the same screen flicker that is experienced by the few others due to auto brightness problems...
It's flickering black and then the whole thing turns unresponsive after a while...and although the video shows it happening during a low light environment, i have had this encounter during a brightly lit area as well...
[URL] ....
I've posted a copy of what really happens on google drive. Is this a case of motherboard problems? I jsut got my laptop about 3 weeks ago. Any chance for a 1-1 exchange?
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Oct 23, 2013
Just picked up this model from Best Buy yesterday. Like everyone else in the large thread I am having the yellow color issue as well. However, I have another issue that I can't seem to find any information on.
The brightness on my screen is constantly adjusting. It is most obvious when making the move from the desktop to Metro. After hitting the windows key, I can see the brightness increasing in stages (about 4 times) after flipping over to Metro.
I have disabled Auto-Brightness under the Change My PC Setting -> Power and Sleep menu. I have also disabled Enable Adpative Brightness under Windows Power Mangement but the issue still persists.
Is there any other location I might be missing a setting that can be affecting this ? Brightness is set to full and keeps dipping down.
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Oct 19, 2014
Just picked up my brand new Yoga 3 Pro a few days ago and on the whole I love it, except I've just noticed there's an odd issue when listening to music (whether it be local or streaming thru spotify).
If I'm browsing a document in Word or even when accessing the Lenovo Support screen from the Start menu, any left to right horizontal scrolling (either with the touch screen or touchpad) causes a crackling interference to the sound. I did notice it would crackle as the Discussion forum cards were loading up and appearing too.
It's not the physical speakers themselves because this occurs thru headphones as well.
Strange thing is it doesn't occur when scrolling vertically through a document.
On the whole it's not a HUGE problem, but given it's a brand new 2grand laptop, now while it's still brand new and I haven't even had a chance to load much onto it. How to stop this from happening?
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Feb 4, 2014
I have accidentally deleted the screen rotation program in my Yoga 2 Pro. What program it is and how to reinstall?
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Jul 7, 2014
My integrated webcam on my lenovo yoga ideapad seems to be malfuncitoning. When I try to open any camera using applications the screen is black with no error message or viewable problems. When I check in device manager the camera says all the drivers are updated and it is in working condition.
Things I've tried/ Things others have suggested and did not work:
fn+esc
Trying it in other apps besides camera
Check device manager for driver issues
Update Drivers
Disable Camera
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May 24, 2014
I use a USB MIDI keyboard (Akai LPK25) with my Ideapad. I've not previously had an issue with this configuration, but since about a week ago, as soon as I plug in the device the touch screen becomes disabled. Removing the device doesn't restore touch screen functionality; I actually have to reboot.
Was there a recent USB upgrade that's causing this issue?
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Dec 19, 2011
Update your Chrome browser to Version 37.0.2062.94 m and above ... It works fantastic with the Y2P and the text is so sharp now for high res laptops running Windows ...
I've just updated mine 15 minutes ago, haven't come across any bugs or usability issue.
Touching on the screen when typing still does bring up the OnScreen Keyboard ...
Oh well ... At least the text is much sharper now compared to the previous versions of browsers ... I have a Y2P (i5) ...
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Aug 22, 2012
Does Microsoft Office take advantage of Ultra High Def or QHD screen resolution? Or, do you have to downgrade resoution to 1080p.
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Apr 22, 2014
I have just taken delivery of my Yoga 2 pro but I am struggling with the setup and cannot get a proper duplicated screen using a Kensington 3.0 Superspeed dock. The Yoga has a resolution of 3200x1800 and my spare screen is a BENQ G2420HD at 1980x1080.
I have already ordered a screen and a dock to replicate this setup in a foreign country and the kit is on its way including a second Yoga 2 pro!
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