[Bug 69404] [bisected HSW ULT]igt/testdisplay -d 16 cause balckscreen with HDMI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69404

--- Comment #6 from Qingshuai Tian <qingshuai.tian at intel.com> ---
Created attachment 87585
  --> https://bugs.freedesktop.org/attachment.cgi?id=87585&action=edit
dmesg of first monitor

 I ran "./testdisplay -d 16" with the latest nightly and next-queued kernel of
20131014 on three different monitor in turn. But I can't reproduce this bug.It
functioned well.
Then I changed to the nightly kernel of 20130916. This bug appeared on two of
them.

The first failed at 832*624 mode.
CRTC(3):[0]  832x624 75 832 864 928 1152 624 625 628 667 0xa 0x40 57284
EDID as follows:
                00ffffffffffff000469fa2201010101
                2b15010380301b78ea3d25a35951a025
                0f5054bfef00714f818081409500a940
                b300d1c00101023a801871382d40582c
                4500dd0c1100001e000000fd00324c1e
                5311000a202020202020000000fc0056
                453232380a20202020202020000000ff
                0042414c4d51533034303034370a0145
                02031ef14b900504030201111213141f
                230907078301000065030c0010001a36
                80a070381e4030203500dd0c1100001a
                662156aa51001e30468f3300dd0c1100
                001e011d007251d01e206e285500dd0c
                1100001e8c0ad08a20e02d10103e9600
                dd0c11000018011d8018711c1620582c
                2500dd0c1100009f0000000000000032

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