Daniel, this is patch you were looking for earlier wrt to screen blanking.
On Tue, 16 Nov 2010 11:10:46 +0800, keithp@xxxxxxxxxx wrote:
> From: Keith Packard <keithp@xxxxxxxxxx>
>
> When setting a new crtc configuration, force the DPMS state of all
> connectors to ON. Otherwise, they'll be left at OFF and a future mode set
> that disables the specified connector will not turn the connector off.
>
> Signed-off-by: Keith Packard <keithp@xxxxxxxxxx>
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/drm_crtc_helper.c | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
> index dcbeb98..7804c3d 100644
> --- a/drivers/gpu/drm/drm_crtc_helper.c
> +++ b/drivers/gpu/drm/drm_crtc_helper.c
> @@ -471,6 +471,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
> int count = 0, ro, fail = 0;
> struct drm_crtc_helper_funcs *crtc_funcs;
> int ret = 0;
> + int i;
>
> DRM_DEBUG_KMS("\n");
>
> @@ -666,6 +667,12 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
> if (ret != 0)
> goto fail;
> }
> + DRM_DEBUG_KMS("Setting connector DPMS state to on\n");
> + for (i = 0; i < set->num_connectors; i++) {
> + DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id,
> + drm_get_connector_name(set->connectors[i]));
> + set->connectors[i]->dpms = DRM_MODE_DPMS_ON;
> + }
>
> kfree(save_connectors);
> kfree(save_encoders);
> --
> 1.7.2.3
>
--
Chris Wilson, Intel Open Source Technology Centre
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