[Bug 94419] New: [APL] HDMI and DP pixel_clocks are always 25.2MHz on different resolutions

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94419

            Bug ID: 94419
           Summary: [APL] HDMI and DP pixel_clocks are always 25.2MHz on
                    different resolutions
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: han.lu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

At different display resolution such as 1920x1080, 1280x720, the pixel_clock is
always 25.2 MHz.

Reproduce Steps
==============
1. connect DP or HDMI cable to monitor
2. run $ intel_audio_dump | grep AUD_CONFIG, check the pixel_clock
3. change to other resolutions such as 1920x1080, 1280x720, and check the
pixel_clock

Expected Result
=============
The pixel_clock changes at different resolution. For example, 148.5 MHz at
1920x1080, 74.25 MHz at 1280x720, etc.

Actual Result
===========
The pixel_clock is always 25.2 MHz

System Environment
=======
linux OS version: Ubuntu 15.10
CRB: Apollo Lake RVP1a FabA
Platform: Apollo Lake Platform
BIOS:APLKRVPA.X86.119.R10.1601031622
Tree: git://anongit.freedesktop.org/drm-intel
Branch: drm-intel-nightly
Commit: 60803e27ae17d7e853c7872c5574f9380b902a57

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