Hi!
> >On Tuesday 15 May 2007 02:13:15 Robert Hancock wrote:
> >>Looks like the radeon driver has the same problem as
> >>the i915 driver
> >>mentioned on the known problems page - I get 60
> >>wakeups/sec from it on
> >>my Compaq X1000 laptop (Radeon 9000 graphics) while in
> >>X, which
> >>essentially prevents entry into C3.
> >
> >And Rage 128 too.
> >
>
> I have a Radeon 7500 in my laptop. The attached hack to
> disable the VBLANK interrupt works for me. I don't know
> if it breaks 3D, I've only tried 2D.
Hmm, you should probably find where it is used, and only enable irq
when neccessary. Disabling it always will break something.
> diff --git a/drivers/char/drm/radeon_irq.c b/drivers/char/drm/radeon_irq.c
> index 3ff0baa..a990bb6 100644
> --- a/drivers/char/drm/radeon_irq.c
> +++ b/drivers/char/drm/radeon_irq.c
> @@ -227,9 +227,8 @@ void radeon_driver_irq_postinstall(drm_device_t * dev)
> atomic_set(&dev_priv->swi_emitted, 0);
> DRM_INIT_WAITQUEUE(&dev_priv->swi_queue);
>
> - /* Turn on SW and VBL ints */
> - RADEON_WRITE(RADEON_GEN_INT_CNTL,
> - RADEON_CRTC_VBLANK_MASK | RADEON_SW_INT_ENABLE);
> + /* Turn on the SW interrupt */
> + RADEON_WRITE(RADEON_GEN_INT_CNTL, RADEON_SW_INT_ENABLE);
> }
>
> void radeon_driver_irq_uninstall(drm_device_t * dev)
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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