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Questions tagged [gpu]

Graphics Processing Unit, a processor dedicated to producing the display output.

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How do M-series GPUs run OpenGL shaders if they only support Metal?

Apparently, M-series GPUs do not natively support OpenGL. This should mean that OpenGL shaders won't run on these GPUs, but that's not actually the case: games like Minecraft (in the new, shader-based ...
AcinonX's user avatar
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Corrupt Storyboard rendering in Xcode 15 on OCLP Ventura and Sonoma on Kepler graphics (MBP mid 2014)

I have Xcode 15 installed in Sonoma on a mid 2014 MBP 15" (not officially supported hardware — uses OCLP). There is a big issue with rendering Storyboards, which corrupts not just the rendering ...
Andreas's user avatar
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Screen flickering with vertical lines

I have an external monitor, Samsung U32R59x, that starts to flicker with vertical lines under certain conditions. My computer is a Macbook Pro, 2022, with an M2-processor. MacOS was reinstalled once I ...
Kristian's user avatar
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Why does external display slow down video playback and how to fix it?

Whenever I connect my Intel MacBook Pro to an external 4K-display and playback video on Youtube or on a video call, for example, CPU usage on kernel_task gradually increases until all 8 cores are at ...
Human's user avatar
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Model training on GPU slows down when closing the monitor

I'm currently training a model on my M1 Max (Sonoma OS). When I have the laptop open, it takes around 1 sec/iteration. As the training takes many hours, I have the laptop closed or locked from time to ...
nona's user avatar
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2011, 15" MacBook Pro won't connect with Apple Cinema Display

I have a 2011, 15" MacBook Pro (running 10.6.8) with the defunct, AMD(?) graphics chip. I'm trying to connect to a 23" Apple Cinema Display using a brand-new Mini DisplayPort to DVI adapter (...
GhostsonAcid's user avatar
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0% usage of integrated GPU when playing videos on chrome?

Sorry this might be a bad question, but why isn't the iGPU being used at all for playing video? Shouldn't it be used at least a little for encoding/decoding video? I have hardware acceleration and ...
bruteforce's user avatar
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MBP with discrete graphics processor - can I use a dock to connect monitors?

I have a 2019 Macbook Pro with an AMD Radeon Pro 5500M graphics processor plus Intel integrated graphics. When I connect the laptop to a StarTech Triple Monitor USB 3.0 Docking Station that has 2 ...
Hobbes's user avatar
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Macbook display flickers, but works fine without hardware acceleration

My MBP display has been flickering, laggy, and unresponsive many times. At times, it gets stuck like this picture for minutes on end, and maybe recovers, or I have to shut it down. I tried a bunch of ...
lprsd's user avatar
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Mid 2010 15" MacBook Pro, have had the dGPU disabled before, have now replaced the logic board completely; How do I re-enable the dGPU

I have a Mid 2010 MPB 15". When the Logic Board failed due to the dGPU kernel panic, I had a tech install a program to remove or disable the dGPU. Since then I have now replaced the logic board ...
Matvey's user avatar
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How to increase VRAM on a Macbook Unibody from 2008

I know the Geforce 9400M in the Unibody Macbook uses shared VRAM with the memory, but since upgrading from 2GB to 8GB I haven't seen an increase in allocation. Why is this, and is there any way to ...
EMS's user avatar
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What's possible on a MacPro5,1 running a Geforce GTX 760 with CUDA installed?

I have a flashed a MacPro5,1 running macOS High Sierra 10.13.6 and a Geforce GTX 760 GPU with the latest supported CUDA library installed at a compute capability 3. Mathematica 11 uses the GPU quite ...
Nick's user avatar
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1 answer
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How to run a process on macOS without GPU access?

I would like to be able to open Activity Monitor and see 0 in the GPU% column for that process. All I have are an intel integrated graphics on an intel based Mac. I'm willing to entertain ...
minseong's user avatar
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Limit how much GPU an app gets to use

How can I set a hard cap on how much of the GPU an app is allowed to use? Like AppPolice, but for GPU, and preferably not a third-party program but please recommend me those anyway (I couldn't find ...
minseong's user avatar
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7 votes
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Do any external graphics cards (eGPUs) work with an M1 Mac, and if not -- why?

According to multiple listings on eGPU chassis, like this one, M1 Macbooks are not supported. I have two questions, are any supported? And if not, why? Is this a limitation of the software that could ...
Evan Carroll's user avatar
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How to make Whisper AI (speech-to-text) use GPU on Intel Macbook Pro?

I just installed Whisper AI to transcribe voice to text. Apparently it does support running on GPU, which should be much more efficient than using the CPU, but I fail to do that. I have read this ...
d-b's user avatar
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MacBook Pro 13 2017: Built-in display flickering, stops when connecting to an external display

My MacBook Pro's built-in display started flickering (screen goes black) a few weeks ago. Most of the time the flickering stops by itself randomly after a couple of minutes. The thing is, when I ...
Roy Shiloh's user avatar
2 votes
1 answer
2k views

The uniqueness of Neural Engine of Mac, among the chip industry/market

From Wikipedia: The neural engine allows Apple to implement neural network and machine learning in a more energy-efficient manner than using either the main CPU or the GPU. However, third party apps ...
Cocktail's user avatar
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GPU artifacts and computer freezes on boot

I have a rather strange situation, which I cannot interpret. I have an iMac 2011 27" with an upgraded GPU. This GPU displays occasionally diagonal stripes of artifacts and freezes. This usually ...
SEJU's user avatar
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GPU-specific stats/view on Apple Silicon

On Apple silicon Macs, how can stats like frequency and utilization particular to GPUs be observed? Activity Monitor gives a nice graph on Activity Monitor's CPU History screen. Activity Monitor's ...
foamroll's user avatar
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3 answers
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Can I get an eGPU without a thunderbolt 3?

I’m using a MacBook Air (early 2015) and trying to do some 3D rendering however it’s an absolute pain to do it on the cpu and it’s probably not good for the laptop to run at those temperatures for ...
python newbie's user avatar
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Maps not rendering in Firefox and Safari on MacBook Pro 15" early 2011

I have a MacBook Pro 15" early 2011 running macOS Catalina with dosdude1's Catalina patcher. The dedicated GPU is inactivated with the non-permanent solution circulating elsewhere. Ever since I ...
gaspanic's user avatar
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MBP 2011 - GPU is hardware disabled - Black screen with MBR/BIOS mode on Windows 10

So I had the GPU permanently disabled by a repair place and with a GPT install Windows, I can't use the sound & brightness slider. The fix is booting as a MBR/BIOS disk install but when I try to ...
leonsk1978's user avatar
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1 answer
389 views

Adobe Photoshop CS 5.1 not working in Mojave via Parallels

I am trying to run Photoshop CS5.1 (from the Adobe CS 5.5 Web Premium suite) in MacOS 10.14 Mojave using Parallels. The host machine is a 15" MacBook Pro late 2013 with a 2GB nVidia GT750M GPU ...
James's user avatar
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579 views

How to fix black screen when switching to discrete graphics card (GPU)?

Symptom: When I open any app that triggers my computer to switch to discrete graphics, such as Adobe Illustrator or games on Steam, my screen goes black (with a backlight). The only way to recover my ...
sffc's user avatar
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2 votes
0 answers
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Need to downgrade to Big Sur from Monterey 12.3, but GPU not working

I upgraded to 12.3 on a 2019 Mac Pro. It no longer recognizes the internal Radeon Vega II GPU, it just says GPU, so the monitor connected to that doesn't get a signal. Luckily I also have an external ...
Ross's user avatar
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673 views

Display failed on 2012 MBP, switch to integrated graphics?

The display on my 2012 Macbook Pro Retina (10,1 with 2.6 GHz i7) suddenly stopped working. It still turns on (startup sound, keyboard backlight) and I was able to enable remote access for diagnostics ...
Ross's user avatar
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AMD Radeon Pro 555X and Myst Selentic Age Mazerunner

Cyan advised that some AMD GPUs have a driver issue that causes the Mazerunner to be unplayable (interior of the vessel very dark). Is there any driver update or other workaround for this? Thanks
Chthonyx's user avatar
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How to prevent macOS from a crash unplugging the eGPU?

My Macbook Pro (2018) currently runs Big Sur 11.6.2 and is connected to an eGPU using USB-C. Using the disconnect function in the menu bar causes macOS to freeze, then crash when the USB-C cable is ...
Joachim Bratteli's user avatar
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Screen share/Apple Remote Desktop/other severely slows down the Mac Pro (3,1) being shared

All I wanna do is run a headless Mac Pro(3,1, with DosDudes patch for Mojave). The instant I connect, mouse/keyboard latency becomes intolerably slow, on the Mac Pro itself, whether I'm looking at it ...
Mac House Calls's user avatar
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1 answer
937 views

What should I do when main display shows slim horizontal lines on a Macbook pro 2017 touchbar model? [duplicate]

MacBook Pro (15-inch, 2017) with touch bar Radeon Pro 555 2GB Intel HD Graphics 630 1536 MB** I have horizontal lines all over my macbook screen. The first time this problem occurred was when I ...
klixo's user avatar
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What are all the ways to prevent MacBook Pro (mid-2020 model) with Monterey (12.0.1) from using Integrated Graphics Card on boot?

I know of one unreliable and two reliable ways to get the MacBook Pro (mid-2020, MacBookPro16,1) to use the integrated graphics card (Intel UHD Graphics 630) instead of the discrete graphics card (AMD ...
QU1's user avatar
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2 votes
1 answer
2k views

iMac fails to boot - graphics issue?

I'm having an issue with a 2017 iMac - it doesn't boot - crashes about half way through Apple logo progress bar, often with some funny graphics displaying - e.g. half the screen is yellow. I've reset ...
Rich's user avatar
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2 answers
216 views

Performance has been decreased significantly after connecting via HDMI (M1)

Currently, I have some sort of performance issue with my MacBook Pro late 2020 (M1, 256, 8). I inserted not the original (very cheap) multiport adapter into the machine and connected it via an HDMI ...
Sergey Kolesnik's user avatar
1 vote
0 answers
34 views

How to test an iMac fully before selling it?

I've owned an 2011 iMac since that year. I really love it, but when I used to use it as my main computer, the screen would often fill up with glitchy color blocks and the computer would sometimes ...
MicroMachine's user avatar
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Graphic Card Problem?

My Mac Pro 2010, running Sierra 10.12.6, boots but the screen only stays on 2 seconds and goes to black. I can push the power button on the screen monitor off and on and it comes back on for 1 second ...
malesus53's user avatar
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728 views

NVIDIA Cards compatible with Mac

I have a MacBook Air Intel so terrible graphics. I want to get an eGPU. But all I can find for compatibility is AMD. NVIDIA is so much more cheaper. (And I know theres a graphics card shortage for ...
Skyline X's user avatar
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1 vote
1 answer
1k views

Can I fit a 12GB tensorflow model in the mac air m1 chip with 16GB Unified RAM

I've read that the M1 chip uses a 'unified memory' architecture, where both the CPU and the GPU share RAM. Is this equivalent to the VRAM on a traditional NVIDIA GPU? E.g. If I have a 12GB tensorflow ...
Ryu S.'s user avatar
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18 votes
4 answers
16k views

How does display scaling work on Mac

So, I have a MacBook Pro 15” and I recently bought an LG 27” 4K monitor. When I connected the monitor, system report said that the original resolution is 4K but the picture looks like 1920x1080 (using ...
Anton Unt's user avatar
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6 votes
0 answers
385 views

Sleep/wake or backlight issue on 10.15 Catalina with disabled broken NVIDIA dGPU

I have a MacBook Pro (Retina, Mid 2012) with a non-functioning NVIDIA dGPU, which I've disabled using the NVRAM method [1][2]. On MacOS Sierra, 10.12, this method (and moving the NVD* kexts) worked ...
user2561747's user avatar
2 votes
2 answers
2k views

Mac Pro 5,1 PCI GPU power 6/8 pin confusion

I have a Sapphire HD 7950 from eBay I got to go in a Mac Pro 5,1. It has dual 8-pin sockets. Being second hand it has no instructions/data sheet. The one I already own [different Mac Pro] has dual 6-...
Tetsujin's user avatar
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1 vote
0 answers
739 views

How to tell what Safari tab requires high performance GPU?

I'm experiencing lower than expected battery life on my 2015 Macbook Pro. I believe that part of the problem is that the High Performance GPU is being activated when not needed by some tab in Safari: ...
Paul Waldo's user avatar
0 votes
2 answers
573 views

macOS 11: Get system information (GPU, resolution) programmatically (in C) [closed]

I need to access data about GPU and screen resolution in C, not using system_profiler, because it takes too long(.3s-.5s system_profiler SPDisplaysDataType), and needs greping and cutting, which is ...
user avatar
0 votes
1 answer
152 views

How to check how much "free" iGPU VRAM the system have in MB?

How to check how much free iGPU VRAM the system have? I thought it was a simple easy task, but so far I don't find any useful result by googling. I knew how much VRAM I have. I knew I could run ...
sgon00's user avatar
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1 vote
0 answers
581 views

VirtualBox slows down when I move the window on a secondary monitor. How can I fix it?

HOST MACHINE: Macbook Air 2017 GRAPHICS: Intel HD Graphics 6000 1536 MB MACOS: Big Sur 11.2.3 and later VIRTUAL BOX Version 6.1.19 and later Intel HD Graphics 6000: Type: GPU Bus: Built-In VRAM (...
aletullio's user avatar
1 vote
1 answer
128 views

How can I fix my system lagging due to problems with Firefox plugin-container process (IOGraphicsAccelerator, too many contexts)

I was running a google meet call in Firefox and had a few other tabs open, including a gitlab one with an embedded video (which might have been part of the cause of this) when I noticed considerable ...
dave's user avatar
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2 votes
2 answers
356 views

GPU disable on boot was successful for months – but cannot execute sh /force-iGPU-boot.sh anymore from Single User Mode

I had this common GPU issue on a 2011 MBP that I was able to solve with the super detailed post by the user "LаngLаngС" (thanks so much!) as found here: GPU problem - Boot Hangs on Grey ...
meltphace's user avatar
2 votes
1 answer
388 views

Macbook Pro 2015: Cursor/screen freezes after login, runs only in safe mode

my MacBook Pro (Retina, 13-inch, Mid 2014) Big Sur 11.2.2 freezes regularly after login. I can only run it in safe mode. I had the problem before the update to Big Sur, I updated it hoping it would ...
Daniele Tognozzi's user avatar
0 votes
0 answers
365 views

MacBook Pro becomes terribly Slow When Using The Secondary GPU

Whenever mac starts to use the secondary GPU (AMD Radeon), such as graphical tasks or when I use a secondary display, It becomes terribly slow. I can say that it must be a GPU problem because if I ...
codemonkey's user avatar
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0 answers
52 views

"Hang In The Main Graphics Engine"

Mac: MacBook Pro, mid2012, 9,1 Core i7 2.3Ghz, 16 GB RAM, 1TB SSD, nVidia 650M, IntelHD 4000 I use several macOS systems incl. the default one - Lion. 2 weeks ago slowdowns began to occur - apps slow ...
Elijah's user avatar
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