My 20" monitor was purchased in December of 2006. I have an iMac on the analog side and a MacBook on the digital. Recently, the digital began to get temperamental and required button pushing and unplugging at the computer to get the monitor to work. Today, I can't get it to work. Analog is fine.
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Re: Digital mode of VX2035wm has stopped working
I recognize the model number as a Viewsonic model.
Check the digital input using another computer to make sure it's the monitor.
If you're brave enough, do this:
Open the unit and check to see if any of the
capacitors in the power supply or other boards look domed or vented on the top.
Replace any capacitors accordingly. Use the same value capacitors. Most often,
1000uF 16V or 25V, 470uF at 16 or 25V, 220uF at 16V or 25V.
Capacitors are used to remove ripple from the switching power supply. This ripple, or noise could cause digital circuits to act up. Usually it's easy to spot the bad ones. Good ones look like a perfect cylinder. If they look swollen on the top they are likely bad.
If you do this and it does not solve the problem, the main board could be going bad and require replacement, You should be able to order one from your local Viewsonic service shop. By the way, that model is fairly new. Remember that Viewsonic monitors carry a three year warranty.
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You'll need a mini DVI to VGA adapter. The adapter I currently use was purchased at Best Buy for under $20. You might also try Ebay. I definitely recommend this as it is an invaluable addition to your MacBook Pro.
Does it happen *ONLY* when connected to *YOUR* computer (implying that the video-card in your computer is failing when warm) or does it happen when connected to *ANY* computer (implying some heat-related problem inside your LCD monitor) ?
If the monitor is still under warranty, exercise the warranty to get it fixed. If the warranty has expired, it's cheaper to buy a new monitor than it would be to repair it.
Mike sounds like the little bard in this monitor where the digital and analog connects to is in malfuction and can be purchased for $30 bucks on ebay. You tryed about everything I had on my list is why I come to this conclusion replacing this board will make the monitor work again if I where you I would investigate that.
try to set your screen resolution to maximum using Display Settings in windows. Besides, are all software drivers for this monitor loaded and properly installed? Right click My Computer=>Properties. select hardware => device manager. Make sure video icons are not marked with question marks. if they are, install monitor drivers shipped with your monitor.
In Safe Mode, your monitor will not be listed as it is using a generic device driver for basic display. Go into your video settings and reset it to the lowest resolution available. Reboot the computer into Vista again and your display should be working. If you check Device Manager now, you should see your monitor listed. If it isn't, you will need to load the Vista drivers for it. You can then modify your display settings to suit your preferences.
It sounds like your monitor is looking for an analog signal from the D-SUB connector while you are using the DVI connector. Go into the monitor's main menu and choose Input Select. Change the setting to Digital. You should now see yourr desktop.
Double check the monitor cable, both going to the monitor, and going to the computer. Ensure it's securely connected. If this doesn't change anything, try rebooting your computer. When the power light flashes, it's in sleep mode and doesn't detect either an analog or digital signal - so either your computer has gone into sleep mode (you can awaken it by hitting any key or moving the mouse) or the cable isn't attached securely. Since your computer is brand new, it's unlikely that anything has broken down already. Another thing to check is to make sure that the resolution in your Display Settings is the correct resolution for the monitor - although it's hard to do this if you can't see what you're doing.