Using H.264 at high resolutions

[nomvirt]

I recently downloaded NoMachine to try it out.

I am using a Windows 7 client (v5.1.54) with a NVIDIA GeForce GTX 560 Ti (driver version 327.23).  I am connecting to a Linux Mint 18 (Ubuntu 16.04) host (v5.1.54) running as a VM on ESXi6.  I compiled H.264 on the host and can connect using H.264 just fine at resolutions of 1920×1080 or below.  I would like to use a screen resolution of 1920×1200 but can only connect at 1920×1200 using VP8.   I am aware of the NoMachine Windows client H.264 hardware decoding limit of 1920×1080 but KB article  https://www.nomachine.com/AR09L00811 implies that above 1920 x 1080 (at 1920×1200 for example) I should be able to at least use software decoding using FFMPEG (which I did install on the Windows 7 machine) or for hardware decoding, I can change the key:

<option key=”Switch to software decoding on Windows if resolution is bigger than 1920×1080″ value=”true” />.

I tried with this key value and FFMPEG installed but no H.264 at 1920×1200.

On the Windows client machine I changed the key in player.cfg to:

<option key=”Switch to software decoding on Windows if resolution is bigger than 1920×1080″ value=”false” /> (I assume this would enable hardware encoding).

With this key value no H.264 at 1920×1200.

I also tried forcing H.264 through the settings menu, performance.  I restarted/rebooted after changes etc.

So while I can connect using H.264 at 1920×1080 or below, it falls back to VP8 at 1920×1200 regardless of what I do.

 

Before I chase FFMPEG/NVIDEA driver issues, should H.264 work at 1920×1200 (either software or hardware decoding), or is something hardcoded in to prevent it regardless of what the KB says.

Thanks

[Britgirl]

Sounds weird that it’s falling back to VP8. We’re not able to reproduce the problem, so we’d need to see logs. Can you submit them to forum [at] nomachine[dot]com?

Instructions on how to extract them are here: https://www.nomachine.com/DT07M00098

[Author]

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