Screen flickering like a strobe light isn’t a good thing, right?
I have a Benq e2200HD 22″ flat panel monitor. While I was using Windows 7 Ultimate RC, I noticed faint flickering while playing Far Cry 2. It wasn’t the usual type of flickering, where the screen goes black for a moment and then the desktop reppears again. It was so faint that I didn’t think anything of it. It’s been two weeks since I installed Windows 7 Home Premium. A couple of days ago the flickering came back and it got worse. It was no longer limited to Far Cry 2. My desktop was also flickering and it was giving me a headache.
My first instinct was to change the monitor’s refresh rate. My screen resolution was 1920×1080. When I attempted to change the resolution rate, from 59Hz to 60Hz, it did nothing. When I mean it did nothing I mean that the change did not save and I was stuck at 59Hz. I googled and plenty of people are having problems being unable to change their refresh rates in Windows 7. The current consensus is that unlike previous Windows, Windows 7 is rounding down the number instead of rounding up. I tried to use the nVidia Control Panel to create a new resolution. I was able to change the refresh rate to 61Hz but it did nothing. Meanwhile, the flickering got so bad, I changed the resolution to 1440×900. From there I was able to bump up the refresh rate to 75Hz. However, this was only a temporary solution.
I became worried that there was something wrong with the card. You see, I also have our 42″ Samsung hooked up to my computer so we can watch videos on our TV. The flickering was also happening there until I changed the resolution and refresh rate. The next step was to buy a new monitor cable. I didn’t have very high hopes that this would work. Here’s where the real purpose of this post comes into play.
I bought a DVI to HDMI 2m cable from Digimania for 19€. I plugged the HDMI end into the monitor and the DVI end into the EVGA card. I turned the monitor on and nothing happened! The only thing on the screen was the message “No cable connected”. I immediately thought, “This better not be a bad cable!” I reseated the connections and tried again. Still nothing happened. After a while of thinking, the screen turned off and on as if it was trying to find the right screen resolution or something. A messaged popped up for a split second saying “DVI”. Well, the problem there was that HDMI port is supposed to be in use. I plugged the EVGA-provided HDMI to DVI adapter onto the cable and plugged it into the monitor. It instantly found the connection and from there, using the monitor’s menu, I was able to change the “Input” setting under “System” to HDMI. After that, the monitor was able to detect that the HDMI port was in use.
So apparently, the Benq e2200HD’s HDMI port needs to be enabled first using the monitor’s menu before you can use it. I don’t understand why they did that. But, oh well the connection is working now and I do not have to re-enable it. As for the S-Video connection from the card to our TV, I’ll have to live with it for the time being until I can afford to buy a replacement cable for the one I am using now.
July 12th, 2010 at 6:47 am
i was also facing the problem,with the help of your blog i was able to chnage the settings on the monitor(E2200HD, now i have the HDMI display.
infact i was also thinking it is the cable problem and i have changed the cable also (HDMI to HDMI).
anyway thanks again..
July 12th, 2010 at 10:30 am
No problem! Changing the cable is usually the first – and easiest – step in solving a flicker problem on a monitor.
October 27th, 2010 at 8:05 am
Man! I thought that a lot last christmas! I had DVI-HDMI adapter and HDMI-HDMI cable and it said No cable connected on my BenQ G2411HD!
But I heard that HDMI and DVI still dont has almost any difference in image quality. they are both digital singnal and everything.. What do u think ?
October 27th, 2010 at 10:29 am
I remember a conversation some people were having on a forum about HDMI and DVI. From what I remember, I don’t think there is much of a difference except HDMI carries an audio signal while DVI does not.
October 28th, 2010 at 8:19 am
Yes, but in my display G2411HD has no speakers so no reason to upgrade to HDMI (I think i’ll but digibox to HDMI someday). Btw, can u carry audio on HDMI cable from for exsample ATI HD cards ?
October 30th, 2010 at 9:23 pm
I just read somewhere that you can…
It wouldn’t hurt to try it out. Let me know what happens. 🙂
January 8th, 2011 at 8:44 am
You are an absolute god among men for figuring this out. I haven’t been able to figure that out for MONTHS and it was going to keep my new surround sound system from working properly. Any alternatives were either very time-consuming or extremely, extremely costly.
So thank you good sir, you are a life saver for posting this. Cheers!
August 19th, 2011 at 4:59 am
Thank you, thank you, thank you!
August 21st, 2011 at 9:22 pm
Np, np, np!
March 16th, 2012 at 4:39 am
Same problem with DP vs DVI on a BENQ BL2400! I had to change from a DP to DVI input, then I got the monitor working, then I could change the input to DP. About three hours down the drain!
May 25th, 2012 at 5:13 am
you are a genius, I have struggled for the last 2 hours. Swapping cables, pushing buttons etc. I read this post and bang, its working. Come to Sydney and I’ll buy you a very large beer
May 26th, 2012 at 12:13 am
Unfortunately, the meds I take don’t sit well with alcohol. HOWEVER, the next time you visit the pub, have a beer for me. Thanks! 😀
October 27th, 2012 at 2:08 pm
Thanks man.U gave me an ideea about how to make it work whitout having to change the cable.U just change from the adptor of the NVIDIA GeForce list of modes form 60Hertz to 59 Hertz and it will work just fine,at the 1920 by 1080,true color rez.Thanks again
January 12th, 2013 at 12:03 pm
berore changeing the cable,try to plug it again.it might work