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#1
28th January 2021, 12:22 PM
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Weird computer monitor problem
One for the IT/electronics experts this...…
The monitor on SWMBO's computer started behaving oddly at start-up, sort of "interference" as on an old-school analogue TV screen. BUT: 1. It fades over time, gone completely in a couple of minutes apart from a very light "speckle" on some plain coloured backgrounds (need to peer closely) that takes a bit longer to disappear. 2. It's exactly the same on analogue (VGA) and digital (DVI) inputs. Normally runs at 1920*1080 on DVI. 3. It's biased to the left side of the screen and is mostly noise with a tiny bit of in initial horizontal jitter. 4. I eventually realised it's nothing to do with the input signal or external interference. Just power on the monitor (see attached picture) standalone and you see it. 6. There is an external mains "brick" with a 12v DC supply to the monitor. I've tried multiple different power supplies and can rule that out. If you power it off briefly (once "warmed up") the interference doesn't reappear. It needs to be off for a while. This leads me to suspect either a capacitor issue or something heat-related. Looking at the back I can see no obvious way in unfortunately, though if it gets worse I'm happy to get quite brutal! Any suggestions from people more knowledgeable than me about LCD screens what it might be and how likely fixable?
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".  (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one!  Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course.  (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850! 
Last edited by HPsauce; 28th January 2021 at 12:27 PM. 
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