Displays tested with the MiST

MiST cores have video timings closely derived from the timing of original machines, resulting in video output that is not 100% VGA compatible. Different displays cope differently with this so below is a list of tested units.

All PAL modes with a vertical scan rate of 50Hz are exceeding the VGA specification which requires at least 56Hz. Some screens can support a horizontal scan rate of 15khz (TV) modes although this is way below the VGA requirement of 31.5kHz.

Please note in the comment column of single cores/video modes are not supported.

Display	size	Rating	50Hz	15kHz	Comments
Eizo Flexscan L568	17" 1280x1024	95%	Yes	Yes	permanent "signal out of range" message on 15kHz modes, works anyway
Eizo Flexscan MX1905	19" 1280x1024	90%	Yes	No
Dell 1908FP	19" 1280x1024	90%	Yes	No
NEC LCD 1525V	15" 1024x768	40%	No	No
ASUS VE248H	24" 1920x1080	95%	Yes	No	Displays all cores without problems (even the SMS and GB one)
Eizo Flexscan M1700	17" 1280x1024	95%	Yes	No	Displays all cores without problems (even the SMS and GB one)

HDMI / upscaling options

Using a video upscaler increases compatibility significantly, as HDMI input is generally good on most displays / TVs.

Device	Rating	Output	50Hz	15kHz RGBHV	Comments	Example
Micomsoft XRGB-Mini + Arcadeforge UMSA	99%	HDMI	50hz pass-through or conversion to 60hz	Yes	FPGA-based converter, 15khz mode works great.	video
Gonbes 8220 RGB to VGA PCB	70%	VGA	Forces 60hz conversion	No	Most cores work, see Core status sheet.	video
VGA+R/L TO HDMI adapter - HD2022	80%	HDMI	50hz pass-through	No	Does not convert 50hz to 60hz. Uses Macro Silicon MS9282 converter chip
Port-TA VGA to HDMI converter	80%	HDMI	50hz pass-through	No	also a MS9282 device as above
MINI VGA2HDMI	80%	HDMI	50hz pass-through	No	yet another MS9282 device
OSSC	50%	HDMI (video only)	50hz pass-through	Yes	Audio needs separate connection

Gonbes Notes

This board can upscale the image to 800x600 or 1024x768. At 640x480, it solves most scaling problems seen on several displays, so this card is a good way to make the MiST more compatible with many TVs. Caveat of this board is that many cores show an image off-centered, hiding some of the gameplay areas.

XRGB Notes

You will need a VGA (RGBHV) to SCART adapter to connect to this upscaler (making sure your connection to the scaler uses the right type of SCART, e.g. usually Euro and not JP21). Can upscale signal to 720p or 1080p and convert 50hz to 60hz smoothly. Sometimes the unit has trouble switching from 50 to 60hz or vice-versa, and will show a blank screen (or blue depending on settings). Restarting the XRGB will fix it.

MS9282 Notes

Several inexpensive VGA to HDMI converter use the MS9282 chip from Macro Silicon. This seems to be pretty compatible and fixes some minor timing problems. It does not convert frequency but as long as the screen can display HDMI 50hz as well as HDMI 60hz it should work.