Apple Seeds Fourth Beta of macOS Big Sur to Developers

[iMacDragon]

I'm getting 4k but not HDR, and definitely hardware accelefated, vp9 codec 4k and using ~20% of a cpu core

 

[macintoshmac]

Build number is 20A5343i

This thing is 20 builds ahead. Beta 3 was 20A5323l.

 

[Kung gu]

View attachment 940695

Hmmm but the cpu usage is 20% in big sur beta 4 when watching 4k video on MS Edge(chrome) it goes to 270% in Catanlina, maybe the IINA needs an update.

 

[iMacDragon]

iina almost certainly needs updates, as it uses ffmpeg for playback, also for me edge/chrome use several hundred % cpu for 4k hdr? I only get low cpu usage with 4k ( but no hdr yet ) in safari.

 

[iMacDragon]

Though in edge youtube is finally not buggering up the tonemapping on HDR, though interestingly it makes the hdr playing youtube tab a much darker shade overall, chrome still is messing it up.

 

[Kung gu]

any1 with a 2017 and later mac can get HW decoding...

 

[DominikHoffmann]

Currently installing the Beta 4 on top of Catalina in a Parallels VM.

 

[tywebb13]

Don't like beta 4. Downgrading to beta 3 again. It broke Reflector. Mirroring my ipad to the mac gives a black screen in beta 4. Hope it is fixed in beta 5. Or maybe Airsquirrels will update Reflector.

 

[bluespark]

No. thanks. I've been sick of flat design ever since iOS 7 and OS X Yosemite. We've been flat longer than we've been skeuomorphic. I'm welcoming the latter's return. Design exists in cycles anyway. Skeuo would have catapulted us into the holographic by now if not for us regressing back to the days of Amiga Workbench and Tandy Deskmate.

The battery symbol here is not skeuomorphic, so I'm not sure what you're talking about.

 

[dpfenninger]

Just did some preliminary testing of 4k videos in YouTube in Safari, and it is buttery smooth and NO fans kicking in on my 2018 MacBook Air. Even 8k seems to play with no dropped frames.

Very impressed by Big Sur so far.

 

[wiesson]

Can someone test if the MacBook Pro 16" with 5300m or 5500M still draws 20W+ if the MacBook has been connected to an external screen?

 

[Chris The Bipolarbear]

still no go for parallels and fusion

 

[Biglethal69]

With a sad heart I can confirm 4K YouTube works in Safari, gone are the days I could enjoy peoples screams and suffering on the internets, at the lack of 4K YouTube. Guess I need to find a new purpose in life now.

I don’t understand what so big deal about 4K on YouTube there’s so many other places to watch 4K

 

[Biglethal69]

Don't like beta 4. Downgrading to beta 3 again. It broke Reflector. Mirroring my ipad to the mac gives a black screen in beta 4. Hope it is fixed in beta 5. Or maybe Airquirrels will update Reflector.

Well I hope your login all the bugs you find because that’s betas are all about

 

[KALLT]

Curious to know which Macs support the 4K videos in YouTube. If I remember correctly, VP9 support was not added until Skylake, which means at least late 2016 MacBook Pro and 2017 iMac.

 

[MLVC]

still no go for parallels and fusion

Well they need to release an update, that's not up to Apple.

 

[DaveMcM76]

still no go for parallels and fusion

Don’t know about parallels as I don’t use it but there is a tech preview available for fusion which adds beta support - https://blogs.vmware.com/teamfusion/2020/07/fusion-big-sur-tech-preview.html.

Both these apps will need updates to support Big Sur and we won’t see those until after Big Sur is officially released.

 

[GadgetBen]

Everything is so much faster in this Beta. No crashes so far.

Mail attachments now working again.

Also, we don't all live in Cupertino anymore!

 

[gspannu]

Drag and drop a 4k YouTube video URL onto IINA

I believe if you see videotoolbox being used either in activity monitor or within iina (Cmd + i) that should show it!

that being said IINA may not be updated for this yet

If videotoolbox is being used by safari during playback that should show OS level support for hardware acceleration

sorry the forum isn't allowing me to embed this link

https://imgur.com/Xm2jeUc

Just checked with IINA - It still reports as 'No Hardware' - but as you guessed, maybe IINA needs an update.

 

[DinkThifferent]

Everything is so much faster in this Beta. No crashes so far.

Mail attachments now working again.

Also, we don't all live in Cupertino anymore!

That might explain why i didn't recognize the place where i woke up this morning.

I'm happy to read you all reporting many bug fixes with beta 4 and i believe Big Sur is gonna be a Big Surcces, the criticisms the Catalina beta's faced were severe and nothing of that seems to be the case this year.

I wouldn't be surprised that Catalina was a quick side project and that Apple had been working for much longer on Big Sur.

 

[MLVC]

Don’t know about parallels as I don’t use it but there is a tech preview available for fusion which adds beta support - https://blogs.vmware.com/teamfusion/2020/07/fusion-big-sur-tech-preview.html.

Both these apps will need updates to support Big Sur and we won’t see those until after Big Sur is officially released.

Actually, if memory serves me right, there's usually a Parallels update towards the end of August.

 

[perkstvr]

Has anyone got problems with connecting to the internet with the latest release? I had it briefly with Beta3 but resolved it and now have the same with Beta4 which I can’t seem to resolve?

 

[Unsupported]

I've seen no mention of Mail.app in macOS Big Sur.

Are there any new features, tweaks or bug fixes?

Enquiring minds would like to know...

 

[RobCh]

Hi. Tried to install beta 4 today and stuck with this error. Tried booting from USB with no avail. Same was with beta 3. Anyone encountered similar problem?

 

[Jaekae]

Where is public betaaaaa

Will only come when they dont have any serious known bugs.. so there probably still is something that can brick certain models or corrupt files or something like that