Re: [REGRESSION] i915: No HDMI output with 4.4

From	Oleksandr Natalenko <oleksandr@natalenko.name>
Newsgroups	linux.kernel
Subject	Re: [REGRESSION] i915: No HDMI output with 4.4
Date	2016-02-16 19:10 +0100
Message-ID	<r2Seu-2Ye-7@gated-at.bofh.it> (permalink)
References	(6 earlier) <r2sDo-2lG-31@gated-at.bofh.it> <r2sDo-2lG-29@gated-at.bofh.it> <r2tzr-2WJ-11@gated-at.bofh.it> <r2LG3-751-31@gated-at.bofh.it> <r2Not-7Xf-1@gated-at.bofh.it>
Organization	pf-kernel developing community

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16.02.2016 14:54, Daniel Vetter wrote:
>> Computer DVI ——— DVI-D (Single Link)/HDMI cable ——— HDMI LG 23MP65HQ-P 
>> ===
>> not working
> 
> I presume the above LG screen is what you've called previously "old
> monitor"?

Correct.

>> Computer DVI ——— DVI-D (Dual Link)/HDMI cable ——— HDMI LG 23MP65HQ-P 
>> ===
>> works!
> 
> Funky. Can you pls grab the debug logs (with the special patches from
> Ville) for this case? I wonder why suddenly different cable and it 
> works.

OK, but will have to steal it again, as it is the only dual link cable I 
could find on another workplace.

> Also: Is this one of these older-ish screens where you must have a
> dual-link cable to drive it at full resolution&refresh rate?
> -Daniel

Single-link cable is enough to empower LG 23MP65HQ-P as its standard 
resolution is 1920×1080@60, which is supported by single-link cable.

Dual-link cable comes with 27MP55HQ-P where it is required to provide 
higher resolution. BTW, in my previous email one should read 
"27MP55HQ-P" (not "23MP55HQ-P"). It is 27" monitor. Also, this monitor 
works with single-link cable (but at lower resolution, I guess).

Thread

Re: [REGRESSION] i915: No HDMI output with 4.4 Daniel Vetter <daniel@ffwll.ch> - 2016-02-09 11:20 +0100
  Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-09 17:00 +0100
  Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-11 08:50 +0100
    Re: [REGRESSION] i915: No HDMI output with 4.4 Daniel Vetter <daniel@ffwll.ch> - 2016-02-11 09:30 +0100
      Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-11 10:00 +0100
        Re: [REGRESSION] i915: No HDMI output with 4.4 Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-02-11 10:30 +0100
          Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-11 12:20 +0100
            Re: [REGRESSION] i915: No HDMI output with 4.4 Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-02-11 15:10 +0100
              Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-12 16:00 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-02-13 00:30 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-02-15 15:50 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Daniel Vetter <daniel@ffwll.ch> - 2016-02-15 16:50 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-16 12:10 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Daniel Vetter <daniel@ffwll.ch> - 2016-02-16 14:00 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-16 19:10 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-16 19:20 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-22 17:20 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-15 16:10 +0100
                Re: [REGRESSION] i915: No HDMI output with 4.4 Oleksandr Natalenko <oleksandr@natalenko.name> - 2016-02-15 17:10 +0100

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