Hello, my U2312HM is perhaps more than 3 years old (I can't remember exactly) and is now displaying interlaced on the whole left side, not all the time, but more frequently. Is this merely showing of age?
I use DVI connection.
Possibly an age thing. The U2312HM came out in 2012 so out of warranty. If the standalone U2312HM BID (Built-in Diagnostic) colored screens show the issue, then the monitor is faulty. If not, then test a different DVI cable. Test the U2312HM DVI/DP/VGA in ports from other computer.
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Running the BID, most visible in green, less in blue, not in red. Have stopped using the USB ports. Have yet to try a different DVI cable or an HDMI connection, currently the display is back to normal.