Black Screen on Odd, High Definition Resolutions

[bradsk88]

Note

Apologies if this is a server-side thing.
It's not obvious to me from the logs, and I'm hoping to start the journey of solving the problem somewhere 😅

I have an (admittedly weird) LG DualUp Ergo 16:18 monitor and I'm trying to use wolf to access my gaming server on it.

The native resolution is 2560x2880. When I set moonlight to stream at this resolution, I see a black screen.

I can confirm the stream is "working" because I can hear the test ball sound.

When I set moonlight to use half-pixel resolution (1280x1440), everything works. But, of course, the quality is significantly reduced.

---

Logs when connecting at native resolution:

ERROR           GST_PIPELINE subprojects/gstreamer/gst/parse/grammar.y:1191:gst_parse_pe

rform_link: could not link vapostproc10 to vah265enc9, vah265enc9 can't handle caps video/x-raw(memory:VAMemory), format=(strin

g)NV12, chroma-site=(string)mpeg2, width=(int)2560, height=(int)2880, colorimetry=(string)bt601, pixel-aspect-ratio=(fraction)1

/1

WARN  | [GSTREAMER] Pipeline parse error (recovered): could not link vapostproc10 to vah265enc9, vah265enc9

can't handle caps video/x-raw(memory:VAMemory), format=(string)NV12, chroma-site=(string)mpeg2, width=(int)2560, height=(int)28

80, colorimetry=(string)bt601, pixel-aspect-ratio=(fraction)1/1

WARN                 basesrc gstbasesrc.c:4255:gst_base_src_push_segment:<interpipesrc10

> segment format mismatched, ignore

WARN                 basesrc gstbasesrc.c:3187:gst_base_src_loop:<interpipesrc10> error:

Internal data stream error.

WARN                 basesrc gstbasesrc.c:3187:gst_base_src_loop:<interpipesrc10> error:

streaming stopped, reason not-linked (-1)

ERROR | [GSTREAMER] Pipeline error: Internal data stream error.

WARN                 basesrc gstbasesrc.c:4255:gst_base_src_push_segment:<interpipesrc11

> segment format mismatched, ignore 

[ABeltramo]

Interesting, from the logs it sounds like an issue with the GPU video encoder (vah265enc) that doesn't support that resolution.. Which GPU do you have?

If it turns out to be the VAAPI encoder I'm not sure there's much we can do on Wolf side; you can try setting any custom resolution in Moonlight too see exactly what works and what doesn't..

[bradsk88]

I'm running a Radeon RX Vega 56.

I tried an additional strange resolution (1500x1000) and it ran no problem. It was also able to handle 4K.

Are there any specific tests I can do to determine if it's the VAAPI encoder or not?

[bradsk88]

Strangely, I was able to get it to render all the way up to 2560 x 2305. Even 3840x2305 worked.

But 256x2306 did not work.

I wonder what the significance of that vertical count is.

[bradsk88]

Not sure what happened, but this seems to have resolved itself.