[Bug 96930] New: No output on HDMI/DP on kernels 4.4+

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96930

            Bug ID: 96930
           Summary: No output on HDMI/DP on kernels 4.4+
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: covex at lowlevel.cz
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Latest reliable kernel is 4.3.4-200.fc22.x86_64 for me. Any later is most of
the times not "detecting" any monitors/output to be used in Xrog, text consoles
results in a blank screen too. Even when it occasionaly starts Xorg then
switching to text console is resulting in "no signal". Starting seconds Xorg
session results in session not beeing correctly started. There is a e.g.
https://bugzilla.redhat.com/show_bug.cgi?id=1317231 "solved" but even with
4.5.7-202.fc23.x86_64 I have no ouput on DP on the start.

This is intel NUC D54250WYK

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated
Graphics Controller

>From working session:
[    16.207] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
        i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
        915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
        Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
        GM45, 4 Series, G45/G43, Q45/Q43, G41, B43
[    16.207] (II) intel: Driver for Intel(R) HD Graphics: 2000-6000
[    16.207] (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100
[    16.207] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200, 6200,
P6300
[    16.207] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    16.207] (II) FBDEV: driver for framebuffer: fbdev
[    16.207] (II) VESA: driver for VESA chipsets: vesa
[    16.207] xf86EnableIOPorts: failed to set IOPL for I/O (Operation not
permitted)
[    16.208] (II) intel(0): Using Kernel Mode Setting driver: i915, version
1.6.0 20151218

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