Last week I purchased a BenQ BL912 monitor.
I tested it only shortly, but my first impressions are very positive!
Tried mainly the 'PAL only' cores from Sorgelig, and some NTSCs as well (NES and Genesis). The display is compatible with all of them! To my surprise it handles flawlessly the cores in 15kHz mode without special wiring, it seems that the devide accepts composite sync over VGA pin 13. I used the standard VGA cable shipped within the package. Moreover it supports even YPbPr over the same connector, you can select the desired color format from the menu (RGB/YUV) both in scandoulber enabled and disabled mode.
Tried the known-to-be-problematic PC Engine (TurboGrafx16) core also, and the picture is perfect, not trunctated and well-centered. The 'Info' says 720x240@59Hz in TV, and 640x500@59Hz in VGA mode).
You need to use 'Auto Adjustment' often after changing core, but it's customizable to one of the 'hot keys'.
I read somewhere that this monitor is compatible with 'Sync-on-green' signals as well, but didn't try that so far.
So I recommend it as a (near) perfect screen for the MIST!
-Available as a new product
-Relative big display (19"=48cm diagonal)
-5:4 aspect ratio (4:3 would be perfect, but still better than 16:9)
-Accepts all kinds of non-VGA standard signals (in respect of resolution, refresh rate, colour format, sync signal)
-Practical 'Auto Adjustment' function and customizable hot keys
-Also has a DVI-D connector, works well with a passive HDMI adaptor (tested with Raspberry Pi 3).
-Many fancy marketing features (Flicker-free LED backlight panel, Ultra-high dynamic contrast ratio of 12,000,000:1, Low Blue Light Mode)
-TN panel (IPS would be better)
-Lack of built-in speaker
-Relative high price (compared to Full HD monitors).
If you are looking for similar, 15kHz compatible monitor, visit the website below:http://15khz.wikidot.com/