On 02/24/2016 10:53 PM, Jindal, Sonika wrote: > Hi Joe, > > Yes, first thing to try is to increase the tries. We testing with 300 retries, but the second monitor still did not show up. However, it did show up in lspci.
> Can you please point me to the bug and provide more details like platform, > monitor, cable. The bug is at: http://pad.lv/1543683 . All the hardware details should be in the bug report. The cable is a single link dvi-d cable. Unfortunately the bug reporter does not have a dual link cable to test. If you need any additional info, we can ask the bug reporter. > Are you referring to the same issue as Oleksandr reported where a single link > dvi/hdmi cable didn’t work and dual link worked? I'm not sure if this is the exact issue or not. I'll review the other thread and compare. > > Regards, > Sonika > > -----Original Message----- > From: Joseph Salisbury [mailto:joseph.salisb...@canonical.com] > Sent: Thursday, February 25, 2016 3:09 AM > To: Jindal, Sonika <sonika.jin...@intel.com> > Cc: Sharma, Shashank <shashank.sha...@intel.com>; Vivi, Rodrigo > <rodrigo.v...@intel.com>; Daniel Vetter <daniel.vet...@ffwll.ch>; Jani Nikula > <jani.nik...@linux.intel.com>; David Airlie <airl...@linux.ie>; intel-gfx > <intel-...@lists.freedesktop.org>; dri-devel > <dri-de...@lists.freedesktop.org>; LKML <linux-kernel@vger.kernel.org> > Subject: [4.4-rc1][Regression] drm/i915: Check live status before reading edid > > Hi Sonika, > > A kernel bug report was opened against Ubuntu [0]. After a kernel bisect, it > was found that reverting the following commit resolved this bug: > > commit 237ed86c693d8a8e4db476976aeb30df4deac74b > Author: Sonika Jindal <sonika.jin...@intel.com> > Date: Tue Sep 15 09:44:20 2015 +0530 > > drm/i915: Check live status before reading edid > > > > The regression was introduced as of v4.4-rc1. > > I was hoping to get your feedback, since you are the patch author. Do think > increasing the number of tries in intel_hdmi_detect() is worth trying? Do > you think gathering any additional data will help diagnose this issue, or > would it be best to submit a revert request? > > > Thanks, > > Joe > > [0] http://pad.lv/lp1543683 >
