[Bug 90238] [SKL desktop] HDMI "testdisplay -y" shows wrong picture on every interlaced scanning resolution

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90238

--- Comment #4 from Elio <elio.martinez.monroy at intel.com> ---
The problem persist on BDW with the following configuration with a different
behavior:
 --- Software information ---

 ++ Kernel version                      : 4.4.4-040404-generic
 ++ Linux distribution                  : Ubuntu 15.10
 ++ Architecture                        : 64-bit

 ++ xf86-video-intel version            : 2.99.917
 ++ Xorg-Xserver version                : 1.17.2
 ++ DRM version                         : 2.4.64
 ++ VAAPI version                       : Intel i965 driver for Intel(R)
Broadwell - 1.6.0
 ++ Cairo version                       : 1.14.2
 ++ Intel GPU Tools version             : Tag
[intel-gpu-tools-1.14-74-g431f6c4] / Commit [431f6c4]
 ++ Kernel driver in use                : i915
 ++ Bios revision                       : 5.6


 --- Hardware information ---

 ++ Platform                            :
 ++ Motherboard model                   :
 ++ Motherboard type                    : NUC5i7RYB Desktop
 ++ Motherboard manufacturer            :
 ++ CPU family                          : Core i7
 ++ CPU information                     : Intel(R) Core(TM) i7-5557U CPU @
3.10GHz
 ++ GPU Card                            : Intel Corporation Broadwell-U
Integrated Graphics (rev 09) (prog-if 00 [VGA controller])
 ++ Memory ram                          : 8 GB
 ++ Maximum memory ram allowed          : 16 GB
 ++ Display resolution                  :
 ++ CPU's number                        : 4
 ++ Hard drive capacity                 : 120 GB


Output:
 ./testdisplay -y
(testdisplay:1576) igt-gt-CRITICAL: Test assertion failure function
igt_get_stop_rings, file igt_gt.c:415:
(testdisplay:1576) igt-gt-CRITICAL: Failed assertion: fd >= 0
(testdisplay:1576) igt-gt-CRITICAL: Last errno: 13, Permission denied
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [igt_get_stop_rings+0xb9]
  #2 [check_stop_rings+0x6]
  #3 [gem_quiescent_gpu+0x3c]
  #4 [drm_open_driver+0x67]
  #5 [main+0x35e]
  #6 [__libc_start_main+0xf0]
  #7 [_start+0x29]
  #8 [<unknown>+0x29]
Test (null) failed.
**** DEBUG ****
(testdisplay:1576) igt-core-DEBUG: Test requirement passed:
!igt_run_in_simulation()
(testdisplay:1576) drmtest-DEBUG: Test requirement passed: fd >= 0
(testdisplay:1576) igt-gt-CRITICAL: Test assertion failure function
igt_get_stop_rings, file igt_gt.c:415:
(testdisplay:1576) igt-gt-CRITICAL: Failed assertion: fd >= 0
(testdisplay:1576) igt-gt-CRITICAL: Last errno: 13, Permission denied
****  END  ****
FAIL (-1.000s)

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