[Intel-gfx] [REGRESSION] i915: No HDMI output with 4.4
oleksandr at natalenko.name
Tue Feb 16 13:21:22 UTC 2016
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
>> Computer DVI ——— DVI-D (Dual Link)/HDMI cable ——— HDMI LG 23MP65HQ-P
> 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
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?
Single-link cable is enough to empower LG 23MP65HQ-P as its standard
resolution is 1920×1080 at 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).
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