On Sat, Jan 31, 2009 at 8:26 AM, Michel Dänzer <mic...@daenzer.net> wrote: > On Fri, 2009-01-30 at 20:52 +0100, Jörg-Volker Peetz wrote: >> >> But with radeon_crtc_modeset_ioctl() calls in legacy_crtc_dpms() in >> xf86-video-ati/src/legacy_crtc.c disabled like this: >> >> $ diff legacy_crtc.c legacy_crtc.c.orig >> 671,672c671,672 >> < /* if (mode == DPMSModeOff) >> < radeon_crtc_modeset_ioctl(crtc, FALSE); */ >> --- >> > if (mode == DPMSModeOff) >> > radeon_crtc_modeset_ioctl(crtc, FALSE); >> 710c710 >> < /* radeon_crtc_modeset_ioctl(crtc, TRUE); */ >> --- >> > radeon_crtc_modeset_ioctl(crtc, TRUE); >> >> the wakeups stayed below 5/s after xset dpms force off. > > Okay. Unfortunately, we can't just remove these calls, or 3D > applications with sync-to-vblank enabled may hang after a mode switch. > We need to know the exact conditions under which the CRTC frame counter > registers reset to zero, then we can move these calls where they are > really necessary.
The crtc frame counters are reset when the crtc is disabled or when the the frame count reset registers are written to. Alex ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
