On Fri, 2008-08-29 at 14:13 +0300, Maksym Veremeyenko wrote:
> 
> I found that happens, because the are no interrupts from intel graphics 
> adapter happens:
> [...]
> 222:          0          0   PCI-MSI-edge      [EMAIL PROTECTED]:0000:00:02.0
> [...]
> this value remains constant *0* all time.
> 
> Is it normal that no interrupts happens from board?
> or i need more initializing ioctl call to /dev/dri/0 to allow interrupts 
> from hardware?

This is probably due to the DRM_I830_SET_VBLANK_PIPE ioctl - the X
driver uses it to disable the vblank interrupts while there are no GLX
clients. This is a crude power saving scheme which will be superseded by
the infamous DRM vblank-rework, which should work with your code.


-- 
Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer


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