[Bug 90931] New: i915 HDMI distorts LVDS

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=90931

            Bug ID: 90931
           Summary: i915 HDMI distorts LVDS
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.18
          Hardware: i386
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: edgardo.g at telikin.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

I have this problem with i915. When the kernel is loading the modules, when
i915 is loaded, if the HDMI cable is connected the video on the LVDS connected
LCD looks distorted. I'm using a brand-less AIO computer that uses a Pegatron
Thin-mini ITX motherboard.

If I connect the HDMI cable after i915 has loaded then no problems (video works
on LCD and HDMI external monitor). If booting with HDMI cable attached, video
only displays on the external monitor while on BIOS, and when the i915 loads
the LCD goes ON but image looks distorted. This happens on more than one of
these computers (I have several, they all have this problem).
Tried kernels 3.12.33 and 3.18. Same problem on both.

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