Heat is the reason for fans so if fans are higher than that is a result of heat correct? They kind of go hand in hand.
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(2019) 16" is HOT & NOISY with an external monitor! :(
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Heat is the reason for fans so if fans are higher than that is a result of heat correct? They kind of go hand in hand.
Hi all, LOOONG thread here, so sorry if I'm repeating others: My external LG display had been working fine, but the latest Catalina upgrade (10.15.4) resulted in my monitor colors/contrast getting blown out. Laptop display looks fine, but plugging in the external monitor looks awful (way too saturated, blown out, etc).
Solution for me: Preferences > Displays > Untick "High Dynamic Range"
Solution for me: Preferences > Displays > Untick "High Dynamic Range"
I've been playing around more with the 2x LG Ultrafine 5K displays (85W Apple model V1), both plugged in via TB3, one LHS, one RHS of MacBook Pro 16, Radeon High Side values.
I removed all TB3 peripherals from the displays, the only cable is power and the TB3 cable going back to the Mac.
MB16 getting power via USB-C charger.
1x display attached (clamshell):
1600 x 900: 4-5W
2048 x 1152: 5-6W
2560 x 1440: 5-6W
2880 x 1620: 5-7W
3200 x 1800: 6-7W
2x displays attached, identical resolution (clamshell):
1600 x 900: 5-6W
2048 x 1152: 18W
2560 x 1440: 18W
2880 x 1620: 9W
3200 x 1800: 15W
2x displays attached, different resolutions (clamshell):
Everything stays at 5-7W except..
18W configurations:
1600 + 2048, 2560
2048 + Any (1600,2048,2560,2880,3200)
2560 + Any (1600,2048,2560,2880,3200)
2880 + 2048, 2560
3200 + 2048, 2560
Exception:
3200 + 3200 = 15W
So the take-away is that running 2048 or 2560 on either display when running 2x displays, causes 18W
I removed all TB3 peripherals from the displays, the only cable is power and the TB3 cable going back to the Mac.
MB16 getting power via USB-C charger.
1x display attached (clamshell):
1600 x 900: 4-5W
2048 x 1152: 5-6W
2560 x 1440: 5-6W
2880 x 1620: 5-7W
3200 x 1800: 6-7W
2x displays attached, identical resolution (clamshell):
1600 x 900: 5-6W
2048 x 1152: 18W
2560 x 1440: 18W
2880 x 1620: 9W
3200 x 1800: 15W
2x displays attached, different resolutions (clamshell):
Everything stays at 5-7W except..
18W configurations:
1600 + 2048, 2560
2048 + Any (1600,2048,2560,2880,3200)
2560 + Any (1600,2048,2560,2880,3200)
2880 + 2048, 2560
3200 + 2048, 2560
Exception:
3200 + 3200 = 15W
So the take-away is that running 2048 or 2560 on either display when running 2x displays, causes 18W
Just adding another 'me too' to the thread.
System: 2019 MBP 16" 2.4GHz i9, 32GB RAM, 8GB AMD 5500, 2TB SSD
Display: 38" LG 38UC99-W
Connection at the moment via TB3 to cal-digit TB/USB-C pro dock, DP from dock to display.
Radeon power w/out external: 5W
Radeon Power on plugging in external display: 18-19W
System: 2019 MBP 16" 2.4GHz i9, 32GB RAM, 8GB AMD 5500, 2TB SSD
Display: 38" LG 38UC99-W
Connection at the moment via TB3 to cal-digit TB/USB-C pro dock, DP from dock to display.
Radeon power w/out external: 5W
Radeon Power on plugging in external display: 18-19W
I guess most of you saw it already but i post it anyway.
Apple has released a support document for amd related problems in Bootcamp (windows)
support.apple.com
The problems seem to include external display/resolution issues.
I wonder if there is a connection here .
Apple has released a support document for amd related problems in Bootcamp (windows)
If the right side of your Mac screen is distorted in Windows 10 - Apple Support
You might need to install updated AMD graphics drivers for Windows.
I wonder if there is a connection here .
Which beta are you taking about - I'm subscribed to the Catalina beta channel, and I don't see any new beta release after the 10.15.4 (19E266). Thanks.
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>> Radeon power w/out external: 5W
>> Radeon Power on plugging in external display: 18-19W
Are you saying you are getting 5W in "clamshell" and "18-19W" in "open-lid" mode?
Note that if you leave the display cable connected, I've noticed that MBP-2019 continues to recognize the monitor even if the monitor is turned off with but the DP/HDMI/Dock cable connected (happens at least with my Dell P2415Q).
Thank you.
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Apple is well aware of the issue as I know that I've brought it up to engineers on the phone multiple times, and they're still calling me back to ask me to do more testing for them and send system diagnostic files - WTF apple, did you not test these at all? We're the guinnea pigs with enough money to throw at these machines and test them for apple. Total joke.
What, apple doesn't have a 16" MacBook Pro and a spare monitor lying around so they can test it themselves???
Are they just running us through the motions until they eventually admit it's faulty and replace our logic boards or computers? After many of the people decide they can live with it and won't bother to get the replacement? I am beginning to feel like that is their strategy. IF they ever do decide to acknowledge the problem. Good chance they never will, except on phone calls 1 on 1 to waste their customers time, acting surprised about a known issue and having us spend hours running tests and sending back data for them to ignore.
What, apple doesn't have a 16" MacBook Pro and a spare monitor lying around so they can test it themselves???
Are they just running us through the motions until they eventually admit it's faulty and replace our logic boards or computers? After many of the people decide they can live with it and won't bother to get the replacement? I am beginning to feel like that is their strategy. IF they ever do decide to acknowledge the problem. Good chance they never will, except on phone calls 1 on 1 to waste their customers time, acting surprised about a known issue and having us spend hours running tests and sending back data for them to ignore.
I have (2) 23.7" Ultrafine 4K monitors I bought from my local Apple prior to the Pandemic. I have an extended return period as they have implemented. So right now I have (2) displays sitting in the closet waiting to go back to Apple.
I am beyond frustrated, and I am continuing to edge further and further everyday to order a Thinkpad P53 as I run a bunch of engineering software as it is.
Apple Seeds First Beta of Upcoming macOS Catalina 10.15.5 Update to Developers
Apple today seeded the first beta of an upcoming macOS Catalina 10.15.5 update to developers for testing purposes, one week after releasing macOS Catalina 10.15.4 with Screen Time Communication Limits, iCloud Folder Sharing, and real-time Apple Music lyrics. The new ??macOS Catalina?? beta...
forums.macrumors.com
I think this issue honestly needs to get more traction. Someone needs to get this information to Youtubers, they are always in need of content, and the only bigger one I saw talking about it is Max tech.
Sorry, work's been hell lately, 5W clamshell (which I never personally run in) and 18-19W open with external.
Single cable tb3 to dock, haven't tried other permutations as of yet.
I've been struggling with heat/fans for a while (that I can ignore) when used in open-lid mode with an LG 27UK850-W 4K monitor. I had no idea this problem with Radeon power usage in open-lid mode. `Radeon High Side` seems to be hovering around 14-15w for me.
But more importantly I've found that running any other program that uses GPU while the external monitor is attached and my 2019 MBP lid is open (I never use clamshell mode), I see `kernel_task` spike (at times) up as high as 1000% CPU (on an 8-core) and the machine completely freezes up for 30s at a time. There's barely any CPU usage. Often about 85-90% idle (except for `kernel_task`).
The problem seems to go away if I switch to low-dpi 2560x1440 mode. Only in 4K scaled to look like 2560x1440 does it completely freeze up. Not sure about "default for display" (which I think looks like 1920x1080, too huge to use).
I'm wondering, if I purchase this eGPU https://www.apple.com/au/shop/product/HMT22X/A/sonnet-egfx-breakaway-puck-radeon-rx-560-external-gpu ... will the internal Radeon dGPU stay completely disabled and therefore resolve this problem? Or will it still remain active and drawing high power in clamshell mode even with the eGPU?
I was tempted to push for a refund, but I need macOS and I really don't want a desktop iMac.
But more importantly I've found that running any other program that uses GPU while the external monitor is attached and my 2019 MBP lid is open (I never use clamshell mode), I see `kernel_task` spike (at times) up as high as 1000% CPU (on an 8-core) and the machine completely freezes up for 30s at a time. There's barely any CPU usage. Often about 85-90% idle (except for `kernel_task`).
The problem seems to go away if I switch to low-dpi 2560x1440 mode. Only in 4K scaled to look like 2560x1440 does it completely freeze up. Not sure about "default for display" (which I think looks like 1920x1080, too huge to use).
I'm wondering, if I purchase this eGPU https://www.apple.com/au/shop/product/HMT22X/A/sonnet-egfx-breakaway-puck-radeon-rx-560-external-gpu ... will the internal Radeon dGPU stay completely disabled and therefore resolve this problem? Or will it still remain active and drawing high power in clamshell mode even with the eGPU?
I was tempted to push for a refund, but I need macOS and I really don't want a desktop iMac.
Coming back to this. My USB-C to DP cable arrived. At DP1.2 I still have the problem but interestingly my refresh rate shows 59.88Hz.
Just to confirm. Did you use an actual USB-C to DP cable or just change the settings while using USBC-USBC?
I wonder if on certain monitors HDMI 60hz is actually 59.88?
My guess is that it'll completely bypass the internal if you have an eGPU.
That eGPU costs about the same as another LG 27UK850-W.
What would you rather have. 2 LGs in clamshell mode or 1 LG and the internal?
59.88Hz or whatever it is, is NTSC standard, double the frame rate of 29.97 (usually it's 59.94 but whatever)
It'd be great to absolutely confirm that an eGPU will completely bypass the dGPU (and avoid heat/noise/thermal-throttling issues) before I spend $700+ (AUD). I'm currently searching this thread for first hand reports.
I would rather use the internal display and a single external, than two externals in clamshell mode. I need to use the iSight camera that is built in, and I also don't want to give up Touch ID. Plus, the DPI is better on the internal display and two 27" side by side means my neck is always turned to one side or the other.
I recently sent this machine in for service over this issue and they said they ran diagnostics for hours and it passed every test. Does anyone know if Apple's service diagnostics actually test performance with the dGPU enabled and driving a 4K display?
The tech specs say this machine can handle FOUR external 4K displays or TWO external 5K displays. But in my experience, the machine will experience *severe* thermal throttling (of the CPU) when the dGPU is driving a single 4K display and doing something that should be trivial like a 1-1 video conference.
To be fair it could also possibly be a Radeon driver issue. 5xxx graphics chips, even on the desktop Windows side have been a driver s*itshow lately.