Display settings and "HDMI suspend" questions

[dungnick]

Hi everyone, I'm new to the forum. I searched the forum but can't find answers to the following questions. Can you please help:
1. Custom display format: What does this setting mean? I have a 4k/60p TV, for best results, which resolution should I choose?
2. HDMI auto adaptation: what does this mean? Should I leave this unticked or ticked for best results?
3. Video passthrough mode (aka. source direct mode): I can't find this setting anywhere. Can I set Q10 Pro to only pass through the video signals to my TV? My TV is reviewed to have good upscaling and interpolation capabilities.
4. Btw, what is "HDMI Suspend" in the Standby setting? Q10 Pro seems to cause HDMI-CEC issues between my receiver and my TV.

Thanks a lot, guys!

[hdmkv]

1. Choose 2160p/60 if your display supports it, otherwise 2160p/30
2, Enable this
3. Play any video using native player, press 'Menu' and disable Imprex engine if you want
4. CEC is a known issue, already on private (sorry) bug tracker list for HiMedia

For #3, Imprex is one of the key draws for Q10 Pro. Suggest leaving it enabled, but play w/options for right level of processing w/o unwanted artifacts.

[dungnick]

1. Choose 2160p/60 if your display supports it, otherwise 2160p/30
2, Enable this
3. Play any video using native player, press 'Menu' and disable Imprex engine if you want
4. CEC is a known issue, already on private (sorry) bug tracker list for HiMedia

For #3, Imprex is one of the key draws for Q10 Pro. Suggest leaving it enabled, but play w/options for right level of processing w/o unwanted artifacts.

Thanks for the quick reply!
1. For learning, what if I choose a different resolution (e.g. 1080p/60) than my TV's native resolution (aka. 4k/60p)?
2. Sorry, I tried but "custom display format" and "HDMI auto adaptation" are mutually exclusive settings. Once I choose a custom display, the HDMI auto adaptation is automatically unticked. My understanding is one is automatic selection of display format, and the other is mannually select it. Is this correct?
3.  So, Imprex engine among other things will upscale resolution and interpolate frames before exporting the video signal to the receiver/TV?

Btw, are these settings global settings which apply to all video playback applcations on the device (including user-installed app such as Mx Player...)?

[futeko.com]

1. Q10 Pro will output at that resolution.
2. Auto means Q10 Pro will output at what it thinks is the maximum resolution and refresh your TV supports. Custom lets you choose.
3. Yes. But even without Imprex Q10 Pro will up/downscale, so if you play a 4K file with custom output resolution set to 1080p, it will output at 1080p.

[dungnick]

1. Q10 Pro will output at that resolution.
2. Auto means Q10 Pro will output at what it thinks is the maximum resolution and refresh your TV supports. Custom lets you choose.
3. Yes. But even without Imprex Q10 Pro will up/downscale, so if you play a 4K file with custom output resolution set to 1080p, it will output at 1080p.

This is a very clear and concise answer. Thanks a lot, man!