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Questions tagged [gpu]

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

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Macbook Pro with ATI damaged - Recover installed windows and external monitor

I have a late 2011 Macbook Pro, which recently damaged the on board ATI graphics, and I'm currently trying to recover everything I have installed to a manageable state so I can carry on my work until ...
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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 ...
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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 ...
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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 ...
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Problems starting 2011 MacBook Pro up

Whenever I shutdown my MacBook Pro I have trouble getting it to start correctly. My computer is an 17” Early 2011 MBP. The dGPU started failing about 3 years ago and I followed this guide to disable ...
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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 ...
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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
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Compressor using integrated Gpu instead of eGPU

Macos compressor is using the integrated graphics card instead of my dedicated one. (External). Here is a picture:
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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 ...
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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 ...
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What should I do when main display shows slim horizontal lines on a Macbook pro 2017 touchbar model?

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 ...
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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 ...
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2 votes
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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2 answers
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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 ...
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MacBook 16 CoreI7 Graphics Display Problems in Chrome and Edge

I've noticed that after my MacBook has been running for a while, often both chrome and edge start misbehaving. Inside of the browser windows, selectively, I get scrambled images (see attached as ...
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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 ...
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1 vote
2 answers
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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-...
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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: ...
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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 ...
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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 ...
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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 (...
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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 ...
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2 answers
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GPU disable on boot was successful for months – but cannot execute sh /force-iGPU-boot.sh anymore from Single User Mode

I am new to this platform and hope that you can help me out with this one. 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&...
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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 ...
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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 ...
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"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 ...
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is Intel Iris 1536 MB better than NVIDIA 8600M?

I was looking at a few games on steam and came across one that read "ATI Radeon HD 2400 or better / NVidia 8600M or better", my macbook has an Intel Iris 1536 mb (8Gb DDR3) and I was ...
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What's the likely cause of this video display problem on my 2012 Macbook?

GIF of problem Mid-2012 Macbook Pro Retina Display on OS X High Sierra 10.13.6 I get this artifact on powering the unit up after it's been off overnight. It keeps glitching like this for 1 or 2 hours ...
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2 votes
1 answer
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Why won't my iMac boot? (com.apple.displaypolicyd exited with abnormal code: 1)

I'm using a 21.5-inch 2017 iMac with 3.6GHz i7 CPU, and Radeon Pro 560 graphics card. I'm running Mac OS Mojave 10.14.6 For the last week, the iMac will not finish booting. The progress bar gets ...
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Principle of resolution scaling via External monitor (GPU performance)

I will demonstrate my idea on a 4K monitor, there are 4 options: Native 4K 1692p 1440p 1080p From What I undersrand, the 4K and 1080p should be on par when it comes to the GPU demands as the 1080p ...
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Can't Access Single User Mode

My DGPU is shot on my late 2011 MacBook Pro 17", and I want to disable it from single-user mode. The problem is that holding down CMD + S doesn't open single-user mode, and the laptop won't boot ...
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2 votes
2 answers
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can mac mini handle the load without eGPU?

i currently have a 2011 27" iMac - i7, 3.1ghz with 20gb RAM with a gig of vRAM on a standard AMD Radeon 6970M video card. It's connected to 2 24" Dell U2415 monitors running at 1920x1200. i ...
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Best method to disable Radeon card in 2011 MacBook Pro?

LangLangC has given a very detailed answer as to how to disable the discrete Radeon graphics card in a 2011 MacBook Pro. It seems to be highly regarded, because it got a +97 score: GPU problem - ...
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1 vote
1 answer
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Does the Mac still only have one hardware video decoder for the first video, and then it will be software decoder that is used?

I remember in the past, a PC had one hardware decoder, and say, if any video is being shown, such as on YouTube, iTunes, or perhaps even just a video ad on the web browser, then the hardware video ...
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Do the Mojave or Catalina patchers support AMD PC GPUs or do you need a flashed card for this?

In the past, I had used dosdude1's High Sierra patcher to get macOS 10.13 on an older Mac Pro. However, the GPU in this machine is a non-flashed AMD R9 270X, so I couldn't get a boot screen and had to ...
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How can I boot in single-user mode for terminal with grey screen?

It all started when I wanted to sell my old Macbook 2011 and remove it from iCloud. I clicked delete my Macbook in iCloud. AND Whoup!! My Macbook shuts down and deletes itself.... I reinstalled High ...
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1 answer
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External Sonnet 550 eGPU not providing enough power for MacBook Pro (15-inch, 2018)

I have an external Sonnet box https://www.sonnetstore.com/products/egfx-breakaway-box-550, and it is not charging my notebook fast enough, e.g battery still draining when the MacBook screen is open. ...
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2 votes
2 answers
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Severe GPU throttling freezes 2019 MBP16 after 30 minutes of Civilization VI

My brand new 2019 Macbook Pro 16" (macOS v10.15.7) suffers from severe GPU throttling after 30 minutes of playing Civilization 6. The freeze causes visual GPU artifacts that extend beyond the ...
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iMac Intel 21.5" EMC 2428 - Possible GPU upgrade for Catalina (Bug Sur)

Is anyone familiar with the possible options for GPU upgrades for this devise? I want to upgrade to Catalina and if possible after official patch or release by Dosdude1 to Big Sur and when I browse ...
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2 votes
1 answer
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21.5" Late 2012 iMac | Display or GPU issue

I purchased used iMac over auction. The iMac seems to show no picture. Could this be the display pin issue or it has the like of faulty GPU? Since these iMacs don't have screen mirroring by default, ...
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MBP Retina 16" 2019: Screen flickering with colors

Every few weeks the screen on my Macbook Pro 16" starts doing this: It happens only with some windows and sometimes the only thing that helps is restart. I went to the Apple store and they just ...
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Single thick green/red vertical line on iMac display

I started seeing a single green/red color line on my iMac. Is it a common problem? How can I fix it. It also vanishes after some time but comes back again. Any ideas?
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Macbook pro 2011 Late cannot enable dGPU again

I'm struggling with some problem involved with enable dGPU AMD Radeon. To the needs of installation MacOS Catalina I had to disable discrete graphics card. I reboot into recovery mode and used command ...
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2 answers
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LCD model number or disabling discrete GPU for MacBook Pro 15 Retina 2012-2013

While trying to replace the battery, I must have damaged certain connection to the discrete gpu. Whenever trying to use discrete gpu, the computer would freeze. After trying to reset VRAM, it ...
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How to check if my laptop supports GPU-based calculations?

I've done search but still no clear answer. I have a laptop - MacBook, Catalina, 10.15.5 MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports) Intel Iris Plus Graphics 640 1536 MB Does this video card ...
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