[Bug 55311] Since 3.7.1-17.1 radeon has no backlight when using vgaswitcheroo (regression)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=55311





--- Comment #19 from Fede <fedevx at yahoo.com>  2013-04-13 17:52:01 ---
--- intel_display.c    2013-01-27 21:50:55.000000000 -0700
+++ linux-3.7.5/drivers/gpu/drm/i915/intel_display.c    2013-01-29
13:30:06.246268500 -0700
@@ -3252,9 +3252,6 @@
     if (!intel_crtc->active)
         return;

-    for_each_encoder_on_crtc(dev, crtc, encoder)
-        encoder->disable(encoder);
-
     intel_crtc_wait_for_pending_flips(crtc);
     drm_vblank_off(dev, pipe);
     intel_crtc_update_cursor(crtc, false);
@@ -3270,10 +3267,6 @@
     I915_WRITE(PF_CTL(pipe), 0);
     I915_WRITE(PF_WIN_SZ(pipe), 0);

-    for_each_encoder_on_crtc(dev, crtc, encoder)
-        if (encoder->post_disable)
-            encoder->post_disable(encoder);
-
     ironlake_fdi_disable(crtc);

     intel_disable_transcoder(dev_priv, pipe);

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