Techaltar, (edited )
@Techaltar@mas.to avatar

I have an annoying thing on my MacBook where video seems to be jumping back and forth in brightness/saturation. Feels like HDR is being turned on and off every few seconds depending on what is on screen. A quick Google search led me nowhere. Does anyone know what my issue is and how to fix it?

Things I've checked that haven't worked:
❌ True tone
❌ Auto-brightness

t_var_s,
@t_var_s@phpc.social avatar

@Techaltar Weird 🤔Does it happen with any video player? Does it happen with the camera feed in photo booth?

Techaltar,
@Techaltar@mas.to avatar

@t_var_s Any video player I've tried, even in the browser. Haven't seen it with the camera

golden_trashcan,

@Techaltar is that on the builtin screen or an external one?
If it’s only happening with an external screen, I’d try with a different cable.

Techaltar,
@Techaltar@mas.to avatar

@golden_trashcan built-in

felixsteininger,
@felixsteininger@mastodon.social avatar

@Techaltar
True tone and auto brightness off.
Otherwise don't know...

Techaltar,
@Techaltar@mas.to avatar

@felixsteininger Sadly neither

jaydead,
@jaydead@mastodon.social avatar

@Techaltar I weirdly have the exact same problem in Manjaro on my pc, also with an HDR monitor. Not sure why, but the display brightness seems to be linked to the contents of the screen. This means that typing white on black text will cause the display brightness to "flutter"

Techaltar,
@Techaltar@mas.to avatar

@jaydead Oof, I thankfully only seem to have this with video. That sounds even more annoying!

forgifuzzbutt,
@forgifuzzbutt@forgi.social avatar

@Techaltar @jaydead If you’ve only seen this with video, then yeah it sounds like it’s almost certainly switching to HDR for an HDR video.

Does it stop if you go to System Settings > Displays and change the preset for the built in display from the XDR profile to “Apple Display”?

Techaltar,
@Techaltar@mas.to avatar

@forgifuzzbutt @jaydead I'm not sure which option you are referring to. Is it here?

forgifuzzbutt,
@forgifuzzbutt@forgi.social avatar

@Techaltar @jaydead Oh that’s interesting - is yours an Apple Silicon MacBook Pro?

It would’ve been the Preset option where it lists “Colour LCD”.

This is what it looks like on mine, which their XDR display is HDR compatible, which is why I would’ve assumed that’s what you were seeing on yours is it switching back and forth.

Maybe it’s just acting weird trying to emulate HDR in SDR color space?

Techaltar,
@Techaltar@mas.to avatar

@forgifuzzbutt Macbook air

Openhuman,
@Openhuman@mastodon.online avatar

@Techaltar

Maybe disable auto brightness? Or True Tone

I disabled everything on my phone and still apple adjust brightness levels depending on heat

Techaltar,
@Techaltar@mas.to avatar

@Openhuman Sadly neither :/

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