[Intel-gfx] [ANNOUNCE] xf86-video-intel (2.8.0 rc1)

Keith Packard keithp at keithp.com
Thu Jun 11 23:48:26 CEST 2009

On Thu, 2009-06-11 at 12:42 +0200, Adam Lantos wrote:

> When starting X with VGA _unplugged_, KMS enables the VGA connector
> and xrandr extendes my desktop.

2.6.30 is missing a patch that makes load-detect work.

(It's in Eric's tree, commit 03d6069912babc07a3da20e715dd6a5dc8f0f867):

commit 03d6069912babc07a3da20e715dd6a5dc8f0f867
Author: Keith Packard <keithp at keithp.com>
Date:   Fri Jun 5 18:19:56 2009 -0700

    drm/i915: Hook connector to encoder during load detection (fixes tv/vga detect)
    With the DRM-driven DPMS code, encoders are considered idle unless a
    connector is hooked to them, so mode setting is skipped. This makes load
    detection fail as none of the hardware is enabled.
    Signed-off-by: Keith Packard <keithp at keithp.com>
    Signed-off-by: Eric Anholt <eric at anholt.net>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a87eeff..b32a51f 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2136,6 +2136,7 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output,
        encoder->crtc = crtc;
+       intel_output->base.encoder = encoder;
        intel_output->load_detect_temp = true;
        intel_crtc = to_intel_crtc(crtc);
@@ -2171,6 +2172,7 @@ void intel_release_load_detect_pipe(struct intel_output *intel_output, int dpms_
        if (intel_output->load_detect_temp) {
                encoder->crtc = NULL;
+               intel_output->base.encoder = NULL;
                intel_output->load_detect_temp = false;
                crtc->enabled = drm_helper_crtc_in_use(crtc);

keith.packard at intel.com
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