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Acer G246HL Monitor Input Problems

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3.2K views 2 replies 2 participants last post by  Whimsicott  
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#1 ·
I've had an Acer G246HL 24-inch 1920x1080p monitor for 5 years and until now it has worked without a single problem. However, I woke up my computer today and found that the monitor wouldn't wake up along with it. I rebooted my computer and then it did wake up....and the resolution was screwed up. It changed to 1024x768 with no way to change it back. The only options in both Windows settings and nVidia control panel were that and 700x900. Reinstalling my GPU drivers didn't solve the problem.


So I tried using an HDMI to connect one of the HDMI ports on the GPU to my HDTV. No problems there, it outputted at 1080p with no problems.


I then got a DVI to HDMI adapter to do some testing.



Computer DVI to TV HDMI = perfect 1080p output Computer HDMI to Monitor DVI = 1074x768 input or No Signal.


This rules out the GPU as all ports can output to the TV without problems.


I then tried hooking up my laptop to the Monitor.


Laptop HDMI to Monitor DVI = No Signal.


I then, just for fun, plugged my Wii U of all things into the monitor.


Wii U HDMI to Monitor DVI = .... PERFECT 1080p OUTPUT.


I then plugged it back into my computer and got screwy output....


I don't get it, what happened?! My computer can output to everything except the monitor. My monitor won't accept any proper inputs except for my Wii U. I am completely confused.
 
#2 ·
The loss of supported resolutions in Windows would indicate that the monitor isn't being properly identified. Most common causes would be the cable or the monitor port.

If you are using the computer DVI port, try using a DVI to VGA adapter.
 
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#3 ·
That's what I assume! Control My Monitor couldn't change any of the monitor's settings (they wouldn't even appear on the list) and accessing the monitor through its' VGA port didn't change anything. Oddly, I plugged the monitor into my Dad's desktop via VGA and it worked perfectly fine. Yet my desktop either gets a screwed-up resolution or no signal when plugging in, and my Laptop and Mom's laptop just get no signal.


Last night someone from work let me borrow a 1440x900 DVI monitor, and it worked perfectly when plugging it into my desktop (all supported resolutions). I also plugged both laptops in and they were able to use it with no problems! At this point I suspect it's the monitor, though I'm still keeping my fingers crossed (got a new monitor arriving today that's identical in model to the broken one).
 
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