> -----Original Message----- > From: intel-gfx-bounces+gordon.jin=intel.com at lists.freedesktop.org > [mailto:intel-gfx-bounces+gordon.jin=intel.com at lists.freedesktop.org] On > Behalf Of Hette Visser > Sent: Friday, November 25, 2011 2:42 AM > To: intel-gfx at lists.freedesktop.org > Subject: E6510: Black screen on resume with 3.2-rc > > Hi, > > with kernel 3.2-rc the DP of my Dell E6510 stays black on resume, > while the attached monitor doesn't. > > I've bisected this and the following change in commit > cd9dde44f47501394b9f0715b6a36a92aa74c0d0 introduced this problem: > > intel_dp.c: > @@ -195,7 +211,7 @@ intel_dp_link_required(struct drm_device *dev, > struct intel_dp *intel_dp, int pi > if (intel_crtc) > bpp = intel_crtc->bpp; > > - return (pixel_clock * bpp + 7) / 8; > + return (pixel_clock * bpp + 9) / 10; > } Thanks for the bisect. This looks related to https://bugs.freedesktop.org/show_bug.cgi?id=42263. Gordon
