[Bug 58791] [ILK] Some modes can't light up on DP display

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=58791

shui yangwei <yangweix.shui at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|VERIFIED                    |REOPENED
         Resolution|FIXED                       |---
           Assignee|intel-gfx-bugs at lists.freede |yangweix.shui at intel.com
                   |sktop.org                   |

--- Comment #6 from shui yangwei <yangweix.shui at intel.com> ---
Created attachment 78912
  --> https://bugs.freedesktop.org/attachment.cgi?id=78912&action=edit
dmesg: some dp display mode can't light up

Environment:
------------------------
Kernel: (drm-intel-next-queued)2b87f3b1bab1df814057ff551f4fc49c22a7fde9
Some additional commit info:
Author: Jesse Barnes <jbarnes at virtuousgeek.org>
Date:   Thu May 2 15:30:47 2013 -0700

    drm/i915: fix Haswell pfit power well check v2

Description:
------------------------
In this round testing, this bug is reproduced, when test display with DP mode,
the resolution below can't light up.
[0]  1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
[1]  1920x1080 50 1920 2448 2492 2640 1080 1084 1089 1125 0x5 0x40 148500
[2]  1920x1080 60 1920 1968 2000 2080 1080 1083 1088 1110 0x9 0x40 138500
[3]  1920x1080i 50 1920 2448 2492 2640 1080 1084 1094 1125 0x15 0x40 74250
[4]  1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74250
[5]  1600x1200 60 1600 1664 1856 2160 1200 1201 1204 1250 0x5 0x40 162000
[7]  1280x1024 75 1280 1296 1440 1688 1024 1025 1028 1066 0x5 0x40 135000

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