Asus G74 screen flicker (dark backgrounds and low brightness)

[muzhik]

works, fixed the flickering... thanks

[DaManWitDaPlan]

Which LCD panel do you have? (Device Mgr, Monitors, Double click "generic PnP...", click details tab and look under Hardware IDs in drop-down box)

I'm having the same problem on a G75VW, and the solution didn't work for me at 67 or 75 hz... Still those horizontal lines.

I have a CMO1720 monitor, as found in the device manager.

I'm currently just testing a bunch of refresh rates. I have the latest verde driver installed. Any ideas?

[DrBeltway]

I never saw horizontal lines myself, so I don't know if refresh rate changes would affect them. I would guess not, though. My issue was a very subtle flickering effect on certain backgrounds.

Apparently the lines have been fixed for some by downgrading NVidia drivers to version 285.79

More info in THIS thread.

If the older driver doesn't work, it might be worth it to try the latest BETA Verde driver.

In the end, if you don't want to stick with older video drivers and you're not opposed to RMA'ing the notebook, I would highly recommend it. First, however, if downgrading drivers helps, I would send NVidia some feedback on their driver forum with your notebook and monitor info. They tend to be pretty good about working with monitor makers and getting fixes out (eventually).

[ny2lond]

I'm having the same problem on a G75VW, and the solution didn't work for me at 67 or 75 hz... Still those horizontal lines.

I have a CMO1720 monitor, as found in the device manager.

I'm currently just testing a bunch of refresh rates. I have the latest verde driver installed. Any ideas?

I changed my G74 for a G75 (the RMA ****ed mine up when it was in the 1st time, so i had to wait 2&1/2 weeks without my main workstation), so i can try and help you.
First of, install the beta drivers from Geforce site: http://www.geforce.com/drivers/results/46429.

If this doesn't fix your problem, I need more details about your horizontal lines problem, so I can try replicate the situation. What driver do you use, BIOS (hit F2 on bios start-up screen), and if it's choppy image in fast movement video or just the 1-2 pixels wide problem.

Note:
What i did see is that in fluorescent lightning conditions the flickering is seen better. I tweaked mine again to 67 Hz and it worked flawlessly. (ASUS, why do you still use the dubious Chi Mei screens)

[ny2lond]

In the end, if you don't want to stick with older video drivers and you're not opposed to RMA'ing the notebook, I would highly recommend it.

Trust me, you don't want to RMA. I had a fried/dead bios Mother Board (so they've told me). After i got it home, I had to RMA it again as the touch pad would't work (defected connector strip. Couldn't wait more than 2 weeks because of my work) and the keyboard wouldn't light up and worse, sometimes the keyboard would't respond - not even light up the CapsLock LED (i had to restart my laptop to make it work, in some cases).

A defective driver is no reason to RMA it. Also, the flicker part is easy to repair by yourself.

Cheers from Romania

[DaManWitDaPlan]

I changed my G74 for a G75 (the RMA ****ed mine up when it was in the 1st time, so i had to wait 2&1/2 weeks without my main workstation), so i can try and help you.
First of, install the beta drivers from Geforce site: http://www.geforce.com/drivers/results/46429.

If this doesn't fix your problem, I need more details about your horizontal lines problem, so I can try replicate the situation. What driver do you use, BIOS (hit F2 on bios start-up screen), and if it's choppy image in fast movement video or just the 1-2 pixels wide problem.

Note:
What i did see is that in fluorescent lightning conditions the flickering is seen better. I tweaked mine again to 67 Hz and it worked flawlessly. (ASUS, why do you still use the dubious Chi Mei screens)

Hi! I'm happy to see someone willing to help... lol

I do have the latest verde driver installed, 304.79. I also have a custom resolution set at 67 Hz (also tested 60 and 75). I never really noticed any flickering problem, just those 2 pixel high lines. Also, not sure what you mean by choppy images with video... I mean, I've noticed some screen-tearing with certain games, but that's normal for most computers lol. Although, I must say, a couple of days ago I was playing Team Fortress 2 and I noticed that the dark-grayish-brown background of the TF2 MVM menu was flickering just a little bit. HOWEVER, I can deal with that. That's not the issue I want to fix right now. My #1 concern are these damn lines that I can't ignore...

Here's my thread, which details the problem (and which 2 others are complaining about as well): http://rog.asus.com/forum/showthread...-on-G75WV-BBK5

I'm busy at the moment on this pc but when I restart I'll let you know what ver. my bios is. Thanks!!

[ny2lond]

I responded on the other thread.

For the "flickerers", I hope Nvidia will create a 67Hz option for us, after the email I have sent them.
For the horizontal lines problem, please follow the other thread DaManWitDaPlan posted above.

[da_nikon]

Sorry for digging this old thread, but i have a problem.


I'm a owner or G75VX since Monday. My panel is CMO1720 and i am experiencing the screen flickering issue. I have tried the custom refresh rate of 67Hz but with no/very little effect. I have tried also to max the brightness from the button combo and then to manipulate the picture from nVidia panel (brightness + contrast) but still getting flickering.

Please G75 owners, help me! The worse flickering i see is on this website http://livescore.com


Is there any recent nvidia drivers that fix this flickering issue or some new workaround this very annoying problem?


EDIT: im using latest nvidia drivers from nvidia website with modded ini file. 310.90 (and im on windows 7 64bit)