Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 21
  1. #1
    New ROGer Array
    Join Date
    Sep 2021
    Reputation
    10
    Posts
    10

    GU502GU External monitor doesn't wake from sleep

    Hello! As the title implies, my external monitor that I am using with my laptop won't wake from sleep when turning on/waking up my laptop. I'll try to give as much background as possible and the steps I've taken so far to try to fix the issue.

    I have an Asus ROG Zephyrus M GU502GU laptop (Windows 10, 64 bit, up to date) with an NVIDIA GTX1660Ti. I used to have an old HP monitor that worked fine with no issues. I wanted a better gaming monitor, so I bought an ASUS VG259QM. If the laptop is turned off or goes to sleep, the monitor recognizes there is no input and also goes to sleep. But when I wake the laptop up, the monitor stays asleep. Manually turning it off and on shows "no signal" and the monitor goes back to sleep. Cycling through my display settings to "PC Screen Only" seems to reset things, after which duplicate/extend/2nd screen only works just fine. It just has to manually be done every time. Removing and re-attaching the HDMI cord also gets the signal to reach the monitor.

    My troubleshooting so far has involved switching to a new HDMI cord (didn't work), switching HDMI ports (didn't work), updating the drivers for Intel, NVIDIA, the ASUS laptop, and the ASUS monitor (no change for any). I've also tried factory resetting the monitor. Can't manually do a firmware update because there are no USB ports on the monitor.

    Now for some diagnostic information I've gathered. When the monitor is connected to my laptop, Intel Graphics control panel only recognizes my laptop screen and NVIDIA control panel only recognizes the monitor. My theory initially was that without Intel recognizing my monitor, the computer can't wake the monitor from sleep, so I tested it by hooking my laptop up to my wife's Dell monitor. Her monitor woke up just fine, and the two graphics control panels behaved identically. I tried disabling the Intel display adapter and reconnecting my monitor. My computer lost the ability to sleep and it didn't fix the issue.

    I tried my wife's laptop with my monitor. It's a Surface with a GTX 1050. Works fine. When her laptop wakes up, my monitor wakes up.

    Now here's the twist: could it be a bum unit? It's actually my second monitor. I previously had the Asus VG258QM. It had the same issue of not being able to wake from sleep. I also didn't like the TN panel. I returned it and paid extra for the IPS display. Now my screen looks nicer, but is still just as useless.

    I have heard of people disabling fast boot in the BIOS to solve this issue, but I tried it and it also didn't work.

    My wife's computer works with my monitor and my computer works with her monitor just fine. But my computer won't work with my monitor. If anyone has any suggestions on how I can make my monitor and laptop play nice, I would greatly appreciate it. Thank you.

    EDIT: I have also tried disabling the Link State Power Management
    Last edited by jnaeem; 09-20-2021 at 03:03 PM. Reason: forgot to include troubleshooting information

  2. #2
    ROG Guru: Brown Belt Array RedSector73 PC Specs
    RedSector73 PC Specs
    Laptop (Model)FA506IU-AL130T x 2
    MotherboardROG CROSSHAIR VIII HERO (WI-FI)
    ProcessorAMD Ryzen 9 3900X 12-Core Processor
    Memory (part number)4 x G.SKILL F4-3800C14D-16GTZN 14-16-16-36 Samsung B-Die
    Graphics Card #1Gigabyte Aorus RTX 2080 Ti Xtreme WaterForce (GV-N208TAORUSX W-11GC)
    Sound CardArctis DAC
    MonitorAsus ROG Swift PG348Q
    Storage #1ADATA SX8200PNP 1TB
    Storage #22 x Samsung SSD 840 EVO 250GB
    CPU CoolerCoolermaster Liquid Pro Master 360
    CaseEVGA DG-87 Gunmetal Grey Gaming Case
    Power SupplyEVGA SuperNOVA G2 750W Gold Power
    Keyboard Corsair K95 RGB Platinum
    Mouse Corsair Gaming Sabre RGB Gaming Mouse
    Headset ARCTIS Pro Wireless
    Mouse Pad Cooler Master MP750 RGB Cloth Gaming Mouse Pad Extra Large
    OS Windows 11 64bit Pro
    Network RouterPfSence Intel i5-10210U 6 Port
    Accessory #1 TP-Link Gigabit 8&6 Port Switches

    Join Date
    Apr 2018
    Reputation
    65
    Posts
    1,235

    Have a look through this
    https://www.maketecheasier.com/fix-a...p-after-sleep/

    Thinking try Disable Link State Power Management.

  3. #3
    New ROGer Array
    Join Date
    Sep 2021
    Reputation
    10
    Posts
    10

    Quote Originally Posted by RedSector73 View Post
    Have a look through this
    https://www.maketecheasier.com/fix-a...p-after-sleep/

    Thinking try Disable Link State Power Management.
    Hi, thank you for responding. I forgot to mention that I did try this, I disabled the Link State Power Management for all of my power plan settings (power saver, high performance, etc.) for whenever the laptop is plugged in, but I still have the same issue. My previous monitor didn't have this issue even before I changed these settings. I will update the original post to include this.

  4. #4
    Moderator Array
    Join Date
    Apr 2019
    Reputation
    13
    Posts
    284

    Hi jnaeem,

    Did you use the same HDMI cord with other monitors?
    May I have the bios version of your GU502GU and the serial numbers of your GU502GU and VG259QM via PM?
    Thank you.

  5. #5
    New ROGer Array
    Join Date
    Sep 2021
    Reputation
    10
    Posts
    10

    Quote Originally Posted by STARRAIN@ROG View Post
    Hi jnaeem,

    Did you use the same HDMI cord with other monitors?
    May I have the bios version of your GU502GU and the serial numbers of your GU502GU and VG259QM via PM?
    Thank you.
    Hi, thank you for responding. I tried using 3 different HDMI cords between my laptop and my monitor. I did not try using any of those 3 cords with the other monitors, but I will try that.

    I will send you the other details shortly.

  6. #6
    Moderator Array
    Join Date
    Apr 2019
    Reputation
    13
    Posts
    284

    Hi jnaeem,

    Thank you for your information.
    May I also have the graphics driver version of your GU502GU?
    Thank you.

  7. #7
    New ROGer Array
    Join Date
    Sep 2021
    Reputation
    10
    Posts
    10

    Quote Originally Posted by STARRAIN@ROG View Post
    Hi jnaeem,

    Thank you for your information.
    May I also have the graphics driver version of your GU502GU?
    Thank you.
    Sure, my NVIDIA driver version is 30.0.14.7196 from August 27, 2021 and my Intel driver version is 26.20.100.6911 from May 28, 2019 (Windows says this is the most up to date driver).

  8. #8
    Moderator Array
    Join Date
    Apr 2019
    Reputation
    13
    Posts
    284

    Hi jnaeem,

    Thank you for your reply.
    I'll consult our tech team about this.

  9. #9
    New ROGer Array
    Join Date
    Sep 2021
    Reputation
    10
    Posts
    10

    Thank you. My window for returning the monitor to Amazon expires on October 5th, so if at all possible, I'd like to reach some sort of resolution by then so I know whether I need to return it or not. I would very much appreciate it.

  10. #10
    Moderator Array
    Join Date
    Apr 2019
    Reputation
    13
    Posts
    284

    Hi jnaeem,

    It seems the voltage of the signal between GU502GU and VG259QM doesn't match, so I'm not sure if there is solution about this.
    I've passed it to our tech team and I'll also follow up this case.
    Thank you.

Page 1 of 3 1 2 3 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •