Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: How to increase screen refresh rate (won't go past 60Hz)


25 Jul 2011   #1

Windows 7
 
 
How to increase screen refresh rate (won't go past 60Hz)

I have a 17-inch Toshiba laptop with a resolution of 1600x900 and a refresh rate of 60 Hz. However, on some backgrounds, I can clearly see my screen flickering. With the preservation of my eyes in mind, it would be greatly beneficial to know if I can increase this or not. I go here:
Quote:
Control Panel\Appearance and Personalization\Display\Screen Resolution
and click "Advanced Settings". Under "Monitor Settings", the pull-down bar only gives me the option of 60Hz (the "Hide modes that this monitor cannot display" is whited out). Is it possible to increase the refresh rate?

EDIT: I have a generic PnP monitor on Intel HD graphics
EDIT#2: I just noticed the similar threads section at the bottom, and found that LCD monitors are supposed to be 60 Hz. But then how do I reduce the flicker?

My System SpecsSystem Spec
.

25 Jul 2011   #2
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit
 
 

To my knowledge LCD screens shouldn't flicker at all regardless of the refresh rate? They don't refresh, the pixel is either on or off. How old is this laptop? Maybe your back light is failing? Other than that, without being able to see what you see, its hard to comment?
My System SpecsSystem Spec
25 Jul 2011   #3

Windows 7
 
 

The laptop is less than 1 month old. And I don't mean that the flickering is so bad that I can barely see the screen, I guess I may have used the wrong wording in my original post. I just mean that on certain (ie - not all) backgrounds I can see my screen flickering (I can see everything clearly, its just more of a nuisance than anything). It's just that I don't want to cause myself any unnecessary eye strain.

Also, I just searched on youtube for what a screen flicker looks like. Mine is a very minor version of the type that renders one unable to see. I guess the light flickering that I see might just be normal; however, I have never seen it before on my desktop, and its monitor was approximately the same size and proximity from my eyes as my laptop is.
My System SpecsSystem Spec
.


25 Jul 2011   #4
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit
 
 

I know on my old 19 inch CRT monitor 60hz would give me a headache, especially with a white background. I now have two 19 inch 1280x1024 LCD's and have never ever seen a flicker. I don't know what to suggest, update your drivers I guess?
My System SpecsSystem Spec
25 Jul 2011   #5

Windows 8.1 Pro
 
 

You're not going to be able to change the refresh rate on that laptop monitor unless it was specifically designed to run at a higher rate, which is most likely not the case as the common refresh rate for LCD monitors (including laptop) is 60Hz

Quote:
While flicker does not occur on LCD displays, it is still necessary to avoid modifying graphics data except during the retrace phase to prevent tearing from an image that is rendered faster than the display operates (LCDs normally always refresh at 60 frame/s).
Refresh rate - Wikipedia, the free encyclopedia

Also......

Quote:
TFT screens do not refresh in the same way as a CRT screen does, where the image is redrawn at a certain rate. A TFT monitor will only support refresh rates coming from your graphics card between 60Hz and 75Hz (ignoring modern 120Hz monitors for a moment). Anything outside this will result in a "signal out of range" message or similar. The “recommended” refresh rate for a TFT is 60hz, a value which would be difficult to use on a CRT. The “maximum” refresh rate of a TFT is 75hz, but sometimes if you are using a DVI connection the refresh is capped at 60hz anyway.
Monitor Specifications - scroll down to Refresh Rate
My System SpecsSystem Spec
26 Jul 2011   #6

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

If I am reading this correctly you have a laptop and you have connected a PnP monitor to it. Is that correct?

If so then:
Which display is blinking - the laptop or the PnP monitor?
Is the PnP monitor an LCD or a CRT?
Connected by VGA, or HDMI cable?

Does your laptop have a dedicated video chip (ATI or Nvidia) or just the Intel graphics?
My System SpecsSystem Spec
26 Jul 2011   #7

Windows 7 Ultimate x64 x2 + x86 + Windows 8.1 x64 x2
 
 

One other possible cause for perceived flicker on a laptop LCD screen is the room lighting, this has been a long term issue in industry with fluorescent tube illumination.

If you have this type of illumination you may find that changing your location will cure it, (a possible reason that you do not see the flicker on the desktop) - the way it is done in industry is to use a special control box on twin tubes that controls the strobing of the tubes to produce a steady light source, but this is of course a major outlay.
My System SpecsSystem Spec
26 Jul 2011   #8

Windows 7
 
 

Quote:
One other possible cause for perceived flicker on a laptop LCD screen is the room lighting, this has been a long term issue in industry with fluorescent tube illumination.
I shut off the lights and still saw the flickering, so no dice
Quote:
If I am reading this correctly you have a laptop and you have connected a PnP monitor to it. Is that correct?

If so then:
Which display is blinking - the laptop or the PnP monitor?
Is the PnP monitor an LCD or a CRT?
Connected by VGA, or HDMI cable?

Does your laptop have a dedicated video chip (ATI or Nvidia) or just the Intel graphics?
I have one display, which is the laptop. I use Speccy (same maker as CCleaner), which tells me the specs of my computer. It said that I have a "Generic PnP monitor on Intel HD Graphics". No extra monitor, no dedicated video chip.

Also, I tried to update my drivers through intel's website but I kept running into errors with it. I guess I'll just have to live with it
My System SpecsSystem Spec
26 Jul 2011   #9

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

What is the exact model number of the laptop?
My System SpecsSystem Spec
27 Jul 2011   #10
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

If it just one month old, I would return it to the store. You should see no flickering.
My System SpecsSystem Spec
Reply

 How to increase screen refresh rate (won't go past 60Hz)




Thread Tools



Similar help and support threads for2: How to increase screen refresh rate (won't go past 60Hz)
Thread Forum
Screen Refresh Rate - Custom for NVIDIA Brand Tutorials
Can I increase my monitor's refresh rate? Graphic Cards
Refresh Rate change causes split screen Graphic Cards
Solved Refresh Rate Stuck to 60Hz Graphic Cards
Q; Screen Refresh Rate: 59 or 60Hz Graphic Cards
'wavy' lines across screen (like refresh rate, but not) Graphic Cards
Screen Refresh Rate - Display Settings Tutorials

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 06:40 PM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33