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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [SKL desktop] HDMI "testdisplay -y" shows wrong picture on every interlaced scanning resolution"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90238#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [SKL desktop] HDMI "testdisplay -y" shows wrong picture on every interlaced scanning resolution"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90238">bug 90238</a>
from <span class="vcard"><a class="email" href="mailto:elio.martinez.monroy@intel.com" title="Elio <elio.martinez.monroy@intel.com>"> <span class="fn">Elio</span></a>
</span></b>
<pre>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)</pre>
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