OSSC potential incompatibilities

From Classic Console Upscaler wiki
Revision as of 18:44, 29 November 2016 by Marqs (talk | contribs) (<autosumm-new>)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

This page lists consoles which can be incompatible with some displays when used with OSSC. Home computers and more exotic arcade boards are not included since their outputs often deviate from PAL/NTSC spec to a degree that they are not compatible with TVs but with PC monitors only. Capture card compatibility is neither considered since with some exceptions they are the most picky devices when it comes to non-standard refresh rates and line counts.

Console Why? Test method
NESRGB / SNES in 60Hz mode Hsync period is not constant, causing some jitter to output clock. Some displays are sensitive to this and cannot properly lock to the signal (low receiver PLL bandwidth). No known external test method.
PSX in 50Hz non-interlaced (288p) mode 314-line output becomes 628 when linedoubled, not within +-1 lines of 625p@50Hz spec as required by some displays.
ModeLine "PSX_288p_x2" 27.00 720 732 796 864  576 581 587 628  -hsync -vsync
Jaguar in 50Hz non-interlaced (288p) mode
Neo Geo 264-line output becomes 528 when linedoubled, not within +-1 lines of 525p@60Hz spec as required by some displays. MVS additionally uses 59.18Hz refresh rate that is too far from 60Hz for some TVs.
ModeLine "MVS_240p_x2" 26.81 720 736 798 858  480 489 495 528  -hsync -vsync