On Fri, 2008-11-21 at 23:14 +0200, Michel Dänzer wrote: > No, radeon doesn't (un)install the IRQ handler on VT switch.
It's not a matter of uninstalling the IRQ handler; the question is whether the hardware frame count gets reset at VT switch time. The i915 driver uses the hardware frame counter to avoid receiving interrupts when no application is waiting for one, but that frame counter is reset to zero when the crtc clock is reprogrammed. > > I have a new patch that moves the drm_vblank_init to driver_load time > > for all chips. > > That shouldn't hurt anyway though. Ok, cool. Having things the same everywhere avoids potential confusion about how the DRM API is supposed to be used. -- [EMAIL PROTECTED]
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