[Bug 32556] screen flickers all the time with desktop image appearing only briefly

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=32556

--- Comment #6 from Gildas Le Nadan <3ntr0p13 at gmail.com> 2010-12-21 11:37:15 PST ---
(In reply to comment #5)
> How about this?
> 
> diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c
> b/drivers/gpu/drm/radeon/atombios_crtc.c
> index b0ab185..fa92120 100644
> --- a/drivers/gpu/drm/radeon/atombios_crtc.c
> +++ b/drivers/gpu/drm/radeon/atombios_crtc.c
> @@ -521,12 +521,6 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
>         pll->flags = 0;
> 
>         if (ASIC_IS_AVIVO(rdev)) {
> -               if ((rdev->family == CHIP_RS600) ||
> -                   (rdev->family == CHIP_RS690) ||
> -                   (rdev->family == CHIP_RS740))
> -                       pll->flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/
> -                                      RADEON_PLL_PREFER_CLOSEST_LOWER);
> -
>                 if (ASIC_IS_DCE32(rdev) && mode->clock > 200000)        /*
> range limits??? */
>                         pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
>                 else

No problem is still there. See register dump kms2.regs

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