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Date: Tue, 15 Mar 2011 09:35:48 +0100
From: Anders Eriksson <aeriksson@fastmail.fm>
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CC: airlied@redhat.com, dri-devel@lists.freedesktop.org,
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Subject: Re: Radeon jittery post 2.6.35
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> Does this patch help?
>
> diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c
> b/drivers/gpu/drm/radeon/atombios_crtc.c
> index 1d89259..a2bd944 100644
> --- a/drivers/gpu/drm/radeon/atombios_crtc.c
> +++ b/drivers/gpu/drm/radeon/atombios_crtc.c
> @@ -524,7 +524,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
>                 if ((rdev->family == CHIP_RS600) ||
>                     (rdev->family == CHIP_RS690) ||
>                     (rdev->family == CHIP_RS740))
> -                       pll->flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/
> +                       pll->flags |= (RADEON_PLL_USE_FRAC_FB_DIV |
>                                        RADEON_PLL_PREFER_CLOSEST_LOWER);
>
>                 if (ASIC_IS_DCE32(rdev) && mode->clock > 200000)
>  /* range limits??? */

No. No improvement on rc8.
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