Dell Monitor keeps blacking out for short periods
Discussion
Dell U2412M Monitor running on up to datE Win10, using Nvidia Geforce GTX1050ti....
Was running fine until the recent house move, and now just keeps going black for about 8 seconds and coming back on.
Have replaced the DVI cable and no change.
Have removed and refitted the gfx card to see if that was loose, no change.
Cant see anything bad on the logs, but IANAE.......
Was running fine until the recent house move, and now just keeps going black for about 8 seconds and coming back on.
Have replaced the DVI cable and no change.
Have removed and refitted the gfx card to see if that was loose, no change.
Cant see anything bad on the logs, but IANAE.......
My guess would be a failing solder joint or component in either the card or the monitor (I've seen failures on both, but not so often I'd care to guess which has the problem).
You might be lucky, and swapping from DVI to say Display Port (the monitor looks to have it, not certain about the particular card?) will avoid using the problematic component.
Alternatively do you have another computer you can use to drive the monitor to isolate If the fault is the GPU or the monitor?
You might be lucky, and swapping from DVI to say Display Port (the monitor looks to have it, not certain about the particular card?) will avoid using the problematic component.
Alternatively do you have another computer you can use to drive the monitor to isolate If the fault is the GPU or the monitor?
assuming you have followed FourWheelDrift's suggestions and checked it is actually the monitor then likelyhood is the capacitors in the power supply board have gone bad. Check very closely to see if the screen is actually black, and that it's not just the backlight that has gone.
Nine times out of 10 in the ones I've done, it's easy to spot the bad caps as they have slight bulge rather than a flat top. Easy to solder out and replace if you've ever done straightforward electronics. It also could be defective diodes (again easy to test if you know how). If not, just lookup the part no. for the power supply module, and grab one from ebay for a couple of quid (this method is the simplest, but more expensive, although only about £20 for your particular model) .
Nine times out of 10 in the ones I've done, it's easy to spot the bad caps as they have slight bulge rather than a flat top. Easy to solder out and replace if you've ever done straightforward electronics. It also could be defective diodes (again easy to test if you know how). If not, just lookup the part no. for the power supply module, and grab one from ebay for a couple of quid (this method is the simplest, but more expensive, although only about £20 for your particular model) .
Edited by LeftLake on Friday 30th April 20:44
Edited by LeftLake on Friday 30th April 20:46
My son had the exact same problem with his Dell u2414 which I assume is very similar to your u2412. The issue turned out to be the power board, although I recapped the old one it didn’t cure the problem completely so I found a new board on line and that solved it. I think the cost was £30 and it took about 15 minutes to fix.
Gassing Station | Computers, Gadgets & Stuff | Top of Page | What's New | My Stuff