[Bugme-new] [Bug 16496] New: Black screen on Dell E6510

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Mon Aug 2 15:13:31 PDT 2010


https://bugzilla.kernel.org/show_bug.cgi?id=16496

           Summary: Black screen on Dell E6510
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.35
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
        AssignedTo: drivers_video-dri-intel at kernel-bugs.osdl.org
        ReportedBy: henkv123 at yahoo.com
        Regression: No


On my Dell E6510 I get a black screen as soon as the i915 KMS module is loaded.
Kernel 2.6.23-rc6 did not have this problem.

After some investigation, I found out that this patch introduced the problem:

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 5d42661..5dde80f 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -798,7 +798,7 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode)
                        intel_dp_link_down(intel_encoder, dp_priv->DP);
                        if (IS_eDP(intel_encoder)) {
                                ironlake_edp_backlight_off(dev);
-                               ironlake_edp_backlight_off(dev);
+                               ironlake_edp_panel_off(dev);
                        }
                }
        } else {

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