First post, by murrayman
Basically like the title says, I have a Hyundai ImageQuest L90D+ LCD monitor that has an issue with artifacts. I've owned the monitor since 2006, love the snot out of it, and used it regularly until 2012, when the artifact issue came up. Specs can be found here.
What happens is when the monitor is run for over thirty minutes on VGA or DVI at either its native resolution or most typical ones, a tiny amount of flashing pixels will begin to show up around different parts of the screen, just like when a graphics card artifacts. As the minutes roll by, the artifacts get worse, but it never makes the monitor turn to complete noise, though for all intents and purposes still makes it unbearable. However, if it reaches the point of significant artifacting and you switch over to a small resolution like that used in DOS, the artifacts disappear, until you boot into something like Windows and the res bumps up over 800x600, at which point the screen often just displays solid white. If the monitor is allowed to cool down for about an hour, it returns to normal, until allowed to warm up again.
I've long since confirmed it's not an issue from a source PC, video cables, power connection, or settings on the monitor. Any ideas where I might start with diagnostics? Any hope of recovering it?
P3B-F 1.04, PIII 1k, 512MB PC133, GF DDR 32MB + DM3DII 12MB SLI, SB0100
P3B-F 1.03, PIII 700, 384MB PC100, V5 AGP, SB0160
CP 5170, PII 350, 256MB PC100, Rage LT 2MB, ESS 1869
PB M S610, PMMX 233, 128MB EDO66, DM3D 4MB, Aztech