I have been trying to debug Billy Biggs' tvtime (tvtime.sf.net) application for DirectFB. It takes advantage of the G400 CRTC2 mode but calls the "WaitForSync" method rather than "flipping" buffers.
From my perusing of the source and sprinkling of debug statements, it seems that there is no linkage between run-time configuring DirectFB for matrox-crtc2 usage and getting the vsync interrupt for the CRTC2 with WaitForSync(). What does get returned is the fbdev vsync interrupt for the first CRTC. b. -- Brian J. Murrell
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