Driver FixRecommendedSound, Wi-Fi or graphics acting up? Check drivers firstFind missing or outdated drivers fast.Check DriversOctober DealsAmazon USOctober deal check: compare before you payAmazon US: current deals, useful picks and tech finds.Check DealsPC HealthRecommendedCrashes, freezes, slowdowns? Check your PC nowSpot repairable issues before they interrupt work.Check PC×
Skip to content
Cupertino desk3 min

How to Fix a Mac Studio That Won’t Wake From Sleep

A Mac Studio’s dark screen may be a monitor or signal problem, not a sleeping Mac. Follow these checks to identify the display, power or startup issue.
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

A dark screen does not necessarily mean your Mac Studio is asleep or off: it has no built-in display, and an external monitor can lose power or signal while the Mac is still running. Start by checking the monitor and its connection, then use the Mac’s status light and response to decide whether to troubleshoot the display, power, or startup.

First, check the display and its connection

Confirm that the monitor is switched on and connected to power. Check the video cable at both ends, then disconnect and reconnect the display from the Mac and its power source. Apple’s external display troubleshooting guidance recommends connecting the display directly to the Mac if you are using a hub or dock.

As an Amazon Associate I earn from qualifying purchases.

  • Make sure the cable or adapter supports the monitor’s required resolution and refresh rate.
  • If possible, try a compatible known-good cable to help isolate the connection. The right cable depends on the ports and capabilities of your Mac and monitor.
  • If the monitor has DisplayPort input and the current connection is suspect, a USB-C-to-DisplayPort cable may be one option—but check the ports, resolution and refresh-rate requirements first. A new cable is a diagnostic possibility, not a guaranteed fix.

Apple’s Mac Studio display guidance covers external-display connections and compatibility.

What’s actually slowing this PC down?

Pick the symptom - the matching free tool is one click away.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Use the status light to check whether the Mac is on

On Mac Studio, a solid white status indicator means the computer is on or sleeping; the light alone cannot tell you which. The light is off when the computer is turned off. Apple documents this behavior in its Mac status indicator light guide.

#1 Best Overall
iPartsleader A3389 A3143 A2901 A2615 A1999 AC Power Cord Cable for Mac Studio M1/M2/M4 & Pro Display XDR 32" 923-07008,661-26399,677-24538 (Authentic/Black/Woven/Braided) English (US) Power Cord
  • 【Compatible Models】𝗡𝗢𝗧 Compatible for Studio Display Retina 5K 27-inch A2525 EMC 4039,𝗢𝗡𝗟𝗬 Compatible for Mac Studio A2615 2022 A2901 2023 A3143 A3143 2025 or A1999 Pro Display XDR 32" 𝗢𝗿𝗱𝗲𝗿 𝗡𝘂𝗺𝗯𝗲𝗿: For Mac Studio MJMV3LL/A (M1 Max) MJMW3LL/A (M1 Ultra),MQH73LL/A (M2 Max) MQH63LL/A (M2 Ultra),MU963LL/A (M4 Max) MU973LL/A (M3 Ultra) ,For Pro Display XDR MWPE2LL/A (Standard glass) MWPF2LL/A (Nano-texture glass)
  • 【What's Include】1 Piece* AC Power Cord Cable (US standard),𝟭𝟬𝟬% 𝗔𝘂𝘁𝗵𝗲𝗻𝘁𝗶𝗰/𝗪𝗼𝘃𝗲𝗻 /𝗕𝗿𝗮𝗶𝗱𝗲𝗱(𝗻𝗼𝘁-𝗮𝗳𝘁𝗲𝗿𝗺𝗮𝗿𝗸𝗲𝘁) (𝗻𝗼𝘁-𝗢𝗘𝗠)
  • 【APN & PPN】𝗔𝗣𝗡:923-07008,𝗣𝗣𝗡:661-26399,622-00218,622-00288,D622-00318,B622-00214,X622-00318
  • 【Descriptions】A faulty power cord may affect the functionality and safety of your monitor. This original power cord (923-07008) is designed specifically for studio displays to ensure reliable electrical connections. Before purchasing, be sure to carefully check the model of your home appliance to confirm its compatibility.
  • 【𝗜𝗠𝗣𝗢𝗥𝗧𝗔𝗡𝗧 𝗡𝗢𝗧𝗘】:The English (US) power cord part number begins with 923. Other regional power cord part numbers also begin with 923, but include a regional prefix. For example, the power cord part number for Italy begins with CI923. Identify the correct regional prefix from the list below: B - United Kingdom CI - Italy D - Belgium/Luxembourg, France, Germany, Poland, Spain, Sweden Note: The two SDXC card slot board connector cowlings and the Ethernet board connector cowling 1 share the same part number. The two combination input/output board connector cowlings share the same part number.
  • Solid white: The Mac is on or asleep. Continue checking the display path and whether the Mac responds.
  • Off: The Mac is turned off, so follow the power and startup checks below.
  • Amber: Rapid amber flashing or a solid amber light can indicate firmware recovery mode. Repeated white flashes after turning on can indicate a hardware issue; consult Apple Support rather than treating these patterns as ordinary sleep behavior.

If the Mac appears unresponsive, check power and restart

If the display is still blank and the Mac does not appear to respond, follow Apple’s steps for a Mac that won’t turn on:

  1. Check that the power cable is undamaged, firmly connected to the Mac and plugged into a working outlet.
  2. Disconnect accessories such as hubs, external drives and mobile devices.
  3. Press and hold the Mac Studio’s power button for about 10 seconds, then release it.
  4. Press the power button normally to try to start the Mac.

Mac Studio uses Apple silicon, so an Intel-style SMC reset is not the answer. Apple says an SMC reset is not needed on Apple silicon Macs.

Rank #2
Amazon Basics PC Power Cord, 3 Feet, 3 Prong AC Power Cord for Monitor, Computer, TV, 18 AWG, 125 Volts, Black
  • IN THE BOX: Universal 3-foot replacement power cord
  • COMPATIBILITY: 18 AWG (American wire gauge); NEMA 5-15P to IEC320C13
  • VERSATILE: Works with most PCs, monitors, printers, and more
  • EASY TO USE: 3-pin power connector
  • SAFETY RATED: UL listed for safety

If the problem keeps returning, isolate software and peripherals

A recurring wake problem can involve sleep settings, network access, sharing, background activity, software or an attached device. Apple’s sleep and wake troubleshooting guide recommends reviewing these possibilities and disconnecting devices to see whether one is involved. Change or remove one factor at a time, then check whether the problem returns; do not assume a setting or peripheral is the cause until you have isolated it.

Free tools Windows power users keep installed

One-click scans. No signup required.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

For the SMC-related step in its sleep and wake guide, Apple’s advice for Apple silicon is to restart the Mac. This is distinct from resetting the SMC on older Intel Macs.

Rank #3
A2615 A2901 A3143 A3389 A1999 AC Power Cord for Mac Studio M1 & M2 & M4 - Pro Display XDR 32" 661-26399, 923-070008 (Authentic/Woven/Braided) D622-00318/B622-00214/X622-00318
  • A3143 A3389 A2615 A2901 A1999 AC Power Cord for Mac Studio M1 & M2 M4 & Pro Display XDR 32
  • 661-26399, 923-070008,622-00218, 622-00288, D622-00318, B622-00214, X622-00318
  • 100% Authentic/Woven /Braided
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

If startup reaches a blank screen, use the Recovery path

If the Mac starts but remains on a blank screen, treat it as a startup problem rather than a routine wake issue. Apple’s blank-screen startup guidance provides this sequence:

  1. Shut down the Mac by holding the power button, then try starting it again.
  2. If the screen remains blank, try starting macOS Recovery.
  3. If Recovery opens, use Disk Utility to repair the startup disk. If the issue persists, reinstall macOS from Recovery.

Some Apple silicon cases may require a firmware revive or restore. If the Mac still will not turn on or the Recovery steps do not resolve the blank screen, contact Apple or an authorized service provider. Do not open the Mac to attempt an internal repair.

Best Value
6Ft 3 Prong AC Laptop Power Cord Cable for Dell Hp Mac Studio Asus Sony Lenovo LG Acer Samsung Gateway Latitude Inspiron XPS Pro MSI Thinkpad Computer Charger Spare: IEC-60320 IEC320 C5 to NEMA 5-15P
  • FEATURES / POWER SPECS : High Quality 3 Prong Extra Long 6 Feet AC Power Cord / UL RoHS Certified SVT 3/C 18AWG(0.824mm2) 90°C 300V E516770 FT2 / CONNECTORS : IEC-60320 (IEC320) C5 to NEMA 5-15P
  • COMPATIBILITY: Universal 3-SLOT Mickey Mouse cable will fit any 3 Prong Tv Monitor Laptop Notebook AC Adapter Samsung Philips 221V8LB LG Acer Aspire Timeline Ultra Switch TravelMate Extensa Nitro Chromebook ASUS VivoBook Taichi Flip Trio ROG TUF NUC Toshiba Satellite Radius HP Pavilion Envy Touchsmart Sleekbook Elitebook Folio Probook ZBook OmniBook HP Spectre x360 Split x2 Stream Compaq Presario IBM Lenovo ThinkPad Helix Edge X1 Carbon Touch IdeaPad Yoga ThinkCentre All in One LOQ Dell Pro Max Inspiron Latitude Vostro AlienWare XPS G3 G5 G7 Gigabyte MSI Gaming Samsung Ativ Book Series Apple Mac Studio M1 M2 M4 661-26399 923-070008 and etc
  • SAFETY / UL LISTED: Pwr+ cables manufactured with the highest quality materials. UL/CE/FCC/RoHS certified.
  • WARRANTY: 30 Days Refund - 24 Months Exchange. PWR+ is WA, USA based company. We are friendly Customer Support Experts
Rank #4
New Extra Long 12Ft 3 Prong AC Laptop Power Cord Cable for Dell IBM HP Mac Studio Compaq Asus Sony Toshiba Lenovo Acer Gateway MSI Notebook Computer Charger Pwr: IEC-60320 IEC320 C5 to NEMA 5-15P
  • FEATURES / POWER SPECS : High Quality 3 Prong Extra Long 12 Feet AC Power Cord / UL RoHS Certified SVT 3/C 18AWG(0.824mm2) 90°C 300V E516770 FT2 / CONNECTORS : IEC-60320 (IEC320) C5 (Cloverleaf) to NEMA 5-15P
  • WARRANTY: 30 Days Refund - 24 Months Exchange. PWR+ is WA, USA based company. We are friendly Customer Support Experts
  • SAFETY / UL LISTED: Pwr+ cables manufactured with the highest quality materials. UL/CE/FCC/RoHS certified.
  • COMPATIBILITY: Will fit any 3 Prong TV Monitor Laptop AC Adapter Philips 221V8LB 241V8LB 271V8LB LG Acer Aspire Timeline Ultra Switch TravelMate Extensa Nitro Chromebook ASUS VivoBook Taichi Book Flip ROG TUF NUC MSI Gigabyte Toshiba Satellite Radius HP Pavilion Envy Touchsmart Sleekbook Elitebook Folio Probook ZBook OmniBook Spectre x360 Split x2 Stream Compaq Presario IBM Lenovo ThinkPad Helix Edge X1 Carbon IdeaPad Yoga LOQ Gaming ThinkCentre Dell Pro Max G3 G5 G7 Inspiron Latitude Vostro AlienWare XPS Dock Micro OptiPlex AIO All in One Samsung Chromebook Ativ Book Series 2 4 5 6 7 8 9 Chronos Apple Mac Studio M1 M2 M4 661-26399 923-070008 A2615 A2901 A3143 A3389 A1999 and others

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Leave a Reply

Your email address will not be published. Required fields are marked *

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

More from the Wire

  1. World desk4 min
    How to Spot an AI Voice Scam Before Sending MoneyDon’t rely on how a caller sounds. Pause, call back through a known number, and verify the emergency with another trusted person before sending money.
  2. Mountain View desk4 min
    Google’s SynthID Detector: How to Check AI-Generated Images, Video and AudioGoogle’s SynthID Detector looks for an embedded watermark in supported images, video and audio. Here is what its results do—and do not—show.
  3. Redmond desk20 min
    How to create a link to File or Folder in Windows 11Windows 11 gives you several ways to point to a file or folder without moving or duplicating it. You can create a desktop shortcut,…
Recommended PC Tool
Recommended PC Tool
Crashes, No Sound, or Screen Glitches?Free driver scan
PC Slower Than It Used to Be?Free scan - under a minute

Two free Windows tools

One Free Minute Could Fix That PC

Before you go - each of these free tools takes about a minute and tackles what quietly slows a Windows PC down.

Special offer. View Outbyte info, uninstall instructions, EULA, and Privacy Policy.