100hz

[Stormdemon]

I'm planning of buying a TV for my MAME cabinet. It would be a PAL TV, with SCART socket, using an ArcadeVGA that I plug using a homemade RGB cable. Now, my question is about 100hz TVs. These models have a very stable picture and your eyes don't get so tired after long periods of time staring at the screen. But... will I have problems with synchronism? Will I have problems using my ArcadeVGA? Will I have perfect scrolls with vsync? In conclusion, is this matter of 100hz TVs vs standard hz TVs a problem as regards using MAME?

[railz]

Only thing I know about SCART is that I used to play my import Super Nintendo on mine without any problems (American console with a power convertor) so I think SCART is frequency independant.

The only way to find out is to hack up a cable and try it I guess

[Minwah]

I think I just answered this over at mameworld...

But I think it should work fine - why?  Dreamcasts run at 50 or 60hz, and work perfectly on 100hz TV's - same principal I reckon

I haven't tried it with the ArcadeVGA tho...

[b3atmania]

I'm planning of buying a TV for my MAME cabinet. It would be a PAL TV, with SCART socket, using an ArcadeVGA that I plug using a homemade RGB cable. Now, my question is about 100hz TVs. These models have a very stable picture and your eyes don't get so tired after long periods of time staring at the screen. But... will I have problems with synchronism? Will I have problems using my ArcadeVGA? Will I have perfect scrolls with vsync? In conclusion, is this matter of 100hz TVs vs standard hz TVs a problem as regards using MAME?

The 100Hz will be no problem. The TV will take a 50Hz signal as input and upscan it to 100Hz for you.

Be sure to buy a 100Hz TV that, besides PAL, also supports NTSC. Most larger sized Euro TV sets do these days. You want NTSC as well since many arcade games are 60Hz.

Also note that using an ArcadeVGA on this is overkill. Most TV sets cannot handle other refresh rates than 50Hz and 60Hz. Only monitors can mostly handle refresh rates above and between those values.

If you haven't bought your television yet, I suggest you get a model that support a VGA plug. The more high-end models do. This will get you a broader range of refresh rates to choose from.

[Zombie]

the ArcadeVGA would be necessary if you wanted to output 15Khz to the TV set.

not completly sure but when a refresh above 54 hz is detected, the TV will automaticly switch to NTSC (60Hz) and below 54 hz will switch PAL (50Hz).
maybe it wouldnt show perfect scroll's in games that dont run 50Hz or 60Hz?
 
but why buy a 100Hz TV?
The ArcadeVGA will let you run games in thier native resolutions (non-interlaced), just like on the arcades.
Interlaced resolutions could imagine looks better on a 100Hz TV but dont think many games in MAME uses these?
its the interlacing that hurts the eye's.
thats atleast how i understand it.

[b3atmania]

the ArcadeVGA would be necessary if you wanted to output 15Khz to the TV set.

Nah, most videocards can output 15kHz.

DOS MAME has native support for this. Windows 2000/XP require some tweaking to driver .ini files. XFree86 users will  have to create the correct modelines for 15kHz in their configuration.

It's just that the ArcadeVGA card makes it easy for you, but really any true VGA compatible card will do.

If you insist on using Win9x you have a problem though, drivers generally can't be made to output 15kHz without hacking the driver itself.