Screen size changes randomly


Helper_Seeker

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Local time
4:39 AM
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8
OS
Windows 11 21H2
Hi there,

I hope I'm on the right board for this super strange thing.

I'm not really sure how to describe it, so I just attached a video.

Every 20-30 seconds the screen will shrink and after 2-3 seconds return to its original size. During those 2-3 seconds the computer is not responsive.
d
I'm on W11 21H2 (OS Build 22200.613).

The display adapter is GTX 1050 Ti. Its driver is updated.

The display itself is Samsung C27H58x.


Any idea?

Thanks:)
 

My Computer

System One

  • OS
    Windows 11 21H2
    Computer type
    PC/Desktop
    CPU
    Intel Core i7 @ 3.70GHz
    Motherboard
    Gigabyte Technology Co. Ltd. Z370 AORUS Gaming 5-CF (U3E1)
    Memory
    32.0GB Dual-Channel Unknown @ 1066MHz
    Graphics Card(s)
    4095MB NVIDIA GeForce GTX 1050 Ti
    Sound Card
    NVIDIA High Definition Audio

streetwolf

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9:39 PM
Posts
38
OS
Windows 11
If this a new problem can you perhaps attribuite it to some changes(s) you recently made. Think hardware and software especially Microsoft Windows 11updates. If this is a new problem have you tried a system restore or better yet restoring a prior disk image if you take them, which everyone should IMO.

Have you tried booting into safe mode or doing a clean boot to see what happens?

I wonder if it could be a power issue. Sort of like mini brownouts every few seconds.
 

My Computer

System One

  • OS
    Windows 11

bobkn

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I've never seen anything like that with an LCD monitor.

It's almost as if your monitor is a CRT with a failing power supply. It is not.

I hope that you have a spare monitor lying around to swap in to see if the issue has anything to do with the PC. I'd bet (5¢) that it's the monitor.
 

My Computers

System One System Two

  • OS
    Windows 11 22623.730
    Computer type
    PC/Desktop
    Manufacturer/Model
    homebuilt
    CPU
    Intel I9-12900K
    Motherboard
    Asus RoG Strix Z690-E
    Memory
    64GB Kingston DDR5-5600
    Graphics Card(s)
    Gigabyte RTX 3090 ti
    Sound Card
    none (USB to speakers), Realtek
    Monitor(s) Displays
    Viewsonic XG320U
    Screen Resolution
    3840 X 2160 @ 144Hz
    Hard Drives
    WB Black SN850 1TB M.2 NVME SSD
    Seagate Iron Wolf 8TB
    PSU
    eVGA SuperNOVA 1300 GT
    Case
    Corsair 5000D AIrflow
    Cooling
    Corsair iCUE H150i ELITE CAPELLIX Liquid CPU Cooler
    Keyboard
    Logitech K120 (wired)
    Mouse
    Logitech M500s (wired)
    Internet Speed
    1200 Mbps
  • Operating System
    windows 11 22623.730
    Computer type
    PC/Desktop
    Manufacturer/Model
    homebuilt
    CPU
    Ryzen 9 5950X
    Motherboard
    Asus Tuf Gaming X570-Plus
    Memory
    64GB DDR4 3800 (@ 3600)
    Graphics card(s)
    Zotac RTX 3080
    Sound Card
    built in Realtek
    Monitor(s) Displays
    Asus PA329C
    Screen Resolution
    3840 X 2160
    Hard Drives
    Sabrent 1 TB PCI-E 4.0 X4 NVME M.2
    4 GB Seagate Ironwolf
    PSU
    eVGA SuperNOVA 850 G6
    Case
    Phanteks ENTHOO Pro M
    Cooling
    iCUE H115i RGB PRO XT Liquid CPU Cooler
    Mouse
    Logitech M500s (wired)
    Keyboard
    Logitech K120 (wired)

glasskuter

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Did that start happening when you applied update KB5012592 which took you to that build? It came out 2 days ago. I agree with previous suggestion that trying safe mode is a good place to start.

 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro 22H2 22621.382
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 m.2 2230-256+1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 10 Pro 21H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 9020
    CPU
    i7-4770
    Memory
    24 gb
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell factory
    Mouse
    Logitech wireless
    Keyboard
    Logitech wired
    Internet Speed
    still not telling
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium

streetwolf

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Local time
9:39 PM
Posts
38
OS
Windows 11
I would imagine if the problem is hardware based it should happen no matter what you boot into.

BTW... Have you checked your Event Log for messages that might indicate what the problem is?
 

My Computer

System One

  • OS
    Windows 11

Helper_Seeker

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Thread Starter
Local time
4:39 AM
Posts
8
OS
Windows 11 21H2
Thanks for all your suggestions and help.

I think I figured out what triggers this.

My desktop is connected to a Yamaha RX-V681 receiver (to stream video and music from it) thru an HDMI extender.

I'm pretty sure the issue with the screen happens only when the receiver is turned on.

It's still something that didn't happen until a few days ago, and no new hardware installation took place.

Must be some update from the last days on W11, Yamaha, video card, or the HDMI extender, right?
 

My Computer

System One

  • OS
    Windows 11 21H2
    Computer type
    PC/Desktop
    CPU
    Intel Core i7 @ 3.70GHz
    Motherboard
    Gigabyte Technology Co. Ltd. Z370 AORUS Gaming 5-CF (U3E1)
    Memory
    32.0GB Dual-Channel Unknown @ 1066MHz
    Graphics Card(s)
    4095MB NVIDIA GeForce GTX 1050 Ti
    Sound Card
    NVIDIA High Definition Audio

bobkn

Well-known member
Power User
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Local time
9:39 PM
Posts
890
Location
Danbury, CT, USA
OS
Windows 11 22623.730
HDMI passthrough by a receiver isn't passive.

I don't understand how that could give what you're seeing, but at least it makes things seem possible.
 

My Computers

System One System Two

  • OS
    Windows 11 22623.730
    Computer type
    PC/Desktop
    Manufacturer/Model
    homebuilt
    CPU
    Intel I9-12900K
    Motherboard
    Asus RoG Strix Z690-E
    Memory
    64GB Kingston DDR5-5600
    Graphics Card(s)
    Gigabyte RTX 3090 ti
    Sound Card
    none (USB to speakers), Realtek
    Monitor(s) Displays
    Viewsonic XG320U
    Screen Resolution
    3840 X 2160 @ 144Hz
    Hard Drives
    WB Black SN850 1TB M.2 NVME SSD
    Seagate Iron Wolf 8TB
    PSU
    eVGA SuperNOVA 1300 GT
    Case
    Corsair 5000D AIrflow
    Cooling
    Corsair iCUE H150i ELITE CAPELLIX Liquid CPU Cooler
    Keyboard
    Logitech K120 (wired)
    Mouse
    Logitech M500s (wired)
    Internet Speed
    1200 Mbps
  • Operating System
    windows 11 22623.730
    Computer type
    PC/Desktop
    Manufacturer/Model
    homebuilt
    CPU
    Ryzen 9 5950X
    Motherboard
    Asus Tuf Gaming X570-Plus
    Memory
    64GB DDR4 3800 (@ 3600)
    Graphics card(s)
    Zotac RTX 3080
    Sound Card
    built in Realtek
    Monitor(s) Displays
    Asus PA329C
    Screen Resolution
    3840 X 2160
    Hard Drives
    Sabrent 1 TB PCI-E 4.0 X4 NVME M.2
    4 GB Seagate Ironwolf
    PSU
    eVGA SuperNOVA 850 G6
    Case
    Phanteks ENTHOO Pro M
    Cooling
    iCUE H115i RGB PRO XT Liquid CPU Cooler
    Mouse
    Logitech M500s (wired)
    Keyboard
    Logitech K120 (wired)
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