Re: 2.6.30-rc1 (latest git): thinkpad-acpi: cannot control brightness with hotkeys (BISECTED)

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On Thu, 2009-04-16 at 00:49 +0800, Matthew Garrett wrote:
> Does this help?
If so, we don't need the following patch.
   >http://marc.info/?l=linux-acpi&m=123967828429865&w=2
   >check whether the ACPI video driver is deferrable only when KMS is
set


> diff --git a/drivers/gpu/drm/i915/i915_opregion.c b/drivers/gpu/drm/i915/i915_opregion.c
> index 6942772..8dc1fd3 100644
> --- a/drivers/gpu/drm/i915/i915_opregion.c
> +++ b/drivers/gpu/drm/i915/i915_opregion.c
> @@ -370,11 +370,8 @@ int intel_opregion_init(struct drm_device *dev, int resume)
>  	if (mboxes & MBOX_ACPI) {
>  		DRM_DEBUG("Public ACPI methods supported\n");
>  		opregion->acpi = base + OPREGION_ACPI_OFFSET;
> -		if (drm_core_check_feature(dev, DRIVER_MODESET)) {
> +		if (drm_core_check_feature(dev, DRIVER_MODESET))
>  			intel_didl_outputs(dev);
> -			if (!resume)
> -				acpi_video_register();
> -		}
>  	} else {
>  		DRM_DEBUG("Public ACPI methods not supported\n");
>  		err = -ENOTSUPP;
> @@ -391,6 +388,10 @@ int intel_opregion_init(struct drm_device *dev, int resume)
>  		opregion->asle = base + OPREGION_ASLE_OFFSET;
>  	}
>  
> +	if (!resume)
> +		acpi_video_register();
> +
> +
>  	/* Notify BIOS we are ready to handle ACPI video ext notifs.
>  	 * Right now, all the events are handled by the ACPI video module.
>  	 * We don't actually need to do anything with them. */
> 

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