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SubjectRe: [2.6.39] drm/i915: blank screen on Lenovo Ideapad U160
On Thu, 16 Jun 2011 13:49:11 +0200
Dirk Gouders <gouders@et.bocholt.fh-gelsenkirchen.de> wrote:

> Some redundant information, but if I change one line at another place
> in the i915 code (whithout the above modification) the result is more
> satisfactory on my machine, because in that case the display even works
> after I close and reopen the lid:
>
> diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
> index 927442a..ebb67ae 100644
> --- a/drivers/gpu/drm/i915/intel_bios.c
> +++ b/drivers/gpu/drm/i915/intel_bios.c
> @@ -267,7 +267,7 @@ static int intel_bios_ssc_frequency(struct drm_device *dev,
> case 4:
> return alternate ? 100 : 96;
> default:
> - return alternate ? 100 : 120;
> + return alternate ? 120 : 100;
> }
> }

Does your machine also work if you set the lvds_use_ssc param to 0?

--
Jesse Barnes, Intel Open Source Technology Center


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