Is there a way to remove the 3rd screen ?


Have you got any monitor settings via a button usually located at the base edge of your monitor? A reset in the monitor settings?
No it is the dreadful Samsung CHG70. Many victims of this monitor model around the world.

@barreleye about this color tool is it possible to reset all changes back ?
 

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  • OS
    Windows 11
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    MAG X570S TOMAHAWK MAX WIFI
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    Windows 11 Pro 23H2 Build: 22631.3593
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    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    4 x LG 23MP75 1 x 24" LG M38H 1 x 32" LF6300 TV Monitor 1 x Wacom Pro 22" Tablet
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    All over the place
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    2 x WD something Something 8TB HDD's / 2 x WD something Something 4TB HDD's / 1 x EVO 1TB SSD / 2 x QVO 1TB SSD's / 1 x EVO 250 GB SSD / 2 x QVO 1TB (External Hub) / 1 x EVO 1TB (Portable Backup Case)
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
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    Windows 11 Pro 22621.2215
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    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
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    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
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    16GB LPDDR5 RAM
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    Graphics processor is an Intel Iris Xe
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    optimized with Dolby Atmos®
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    QHD 2880 x 1800 OLED
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    M.2 512GB
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    …still on a horse.
You said No..., what about the Joystick on the back?
yes the setting appear from this Joystick. I dont understand what I should do ?
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    CPU
    5900x
    Motherboard
    MAG X570S TOMAHAWK MAX WIFI
    Memory
    32 GB G.Skill
    Graphics Card(s)
    RX 6800 XT
    Sound Card
    Creative Sound Blaster Z
    Monitor(s) Displays
    BENQ and AOC QHD 120Hz
    Screen Resolution
    QHD
    Hard Drives
    2TB Intel 660p and 2TB Sabrent Rokect 4 plus nvme, 4TB HDD HGST
    PSU
    Corsair RM750
    Case
    Bloody rage
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    Water cooling gamdias 240
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    razer ornata
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    razer da v2
    Browser
    FF and Chrome
    Antivirus
    Malwarebytes
yes the setting appear from this Joystick. I dont understand what I should do ?
Most often than not there is a reset setting in that OSD (on screen display) for the monitor. It would be a long shot but you could reset it. All it does is set the monitor settings (input/brightness/contrast etc) to default.

More importantly though, as others have suggested, unless you’re using the duel cables for what barreleye explained to us earlier, use one cable at a time.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build: 22631.3593
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    4 x LG 23MP75 1 x 24" LG M38H 1 x 32" LF6300 TV Monitor 1 x Wacom Pro 22" Tablet
    Screen Resolution
    All over the place
    Hard Drives
    2 x WD something Something 8TB HDD's / 2 x WD something Something 4TB HDD's / 1 x EVO 1TB SSD / 2 x QVO 1TB SSD's / 1 x EVO 250 GB SSD / 2 x QVO 1TB (External Hub) / 1 x EVO 1TB (Portable Backup Case)
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech G402 / G502 / Mx Masters / MX Air Cordless
    Internet Speed
    100/40Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    I’m on a horse.
  • Operating System
    Windows 11 Pro 22621.2215
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Graphics processor is an Intel Iris Xe
    Sound Card
    optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Other Info
    …still on a horse.
Most often than not there is a reset setting in that OSD (on screen display) for the monitor. It would be a long shot but you could reset it. All it does is set the monitor settings (input/brightness/contrast etc) to default.

More importantly though, as others have suggested, unless you’re using the duel cables for what barreleye explained to us earlier, use one cable at a time.
tried now the reset but problem remain
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    CPU
    5900x
    Motherboard
    MAG X570S TOMAHAWK MAX WIFI
    Memory
    32 GB G.Skill
    Graphics Card(s)
    RX 6800 XT
    Sound Card
    Creative Sound Blaster Z
    Monitor(s) Displays
    BENQ and AOC QHD 120Hz
    Screen Resolution
    QHD
    Hard Drives
    2TB Intel 660p and 2TB Sabrent Rokect 4 plus nvme, 4TB HDD HGST
    PSU
    Corsair RM750
    Case
    Bloody rage
    Cooling
    Water cooling gamdias 240
    Keyboard
    razer ornata
    Mouse
    razer da v2
    Browser
    FF and Chrome
    Antivirus
    Malwarebytes
I have actually lost track of what is going on.

Shut down the PC

Leave the main monitor pugged in, unplug the other cables for the second monitor from the back of the PC so that you only have the one cable to the main monitor plugged into your PC.

(Don’t plug in the 2nd monitor)

Reboot.

What can you see in the Display settings?
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build: 22631.3593
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    4 x LG 23MP75 1 x 24" LG M38H 1 x 32" LF6300 TV Monitor 1 x Wacom Pro 22" Tablet
    Screen Resolution
    All over the place
    Hard Drives
    2 x WD something Something 8TB HDD's / 2 x WD something Something 4TB HDD's / 1 x EVO 1TB SSD / 2 x QVO 1TB SSD's / 1 x EVO 250 GB SSD / 2 x QVO 1TB (External Hub) / 1 x EVO 1TB (Portable Backup Case)
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech G402 / G502 / Mx Masters / MX Air Cordless
    Internet Speed
    100/40Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    I’m on a horse.
  • Operating System
    Windows 11 Pro 22621.2215
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Graphics processor is an Intel Iris Xe
    Sound Card
    optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Other Info
    …still on a horse.
I have actually lost track of what is going on.
Me too!
Is the OP trying to solve the original problem of a ghost display in settings...,
or, the problem with grey lines on the monitor...,
or, both... 🤷‍♂️
 

My Computers

System One System Two

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    ASUS ROG Strix
  • Operating System
    Windows 11
    Computer type
    Laptop
    Manufacturer/Model
    ASUS VivoBook
Hopefully the Ghost Monitor, Edwin? But it was worth a shot tring to eliminate a cause for the lines.

The lines still show, I’d guess there is something wrong with either your monitor or your graphics card or your cables. I don’t know which. I suppose plugging your main monitor into the input your secondary monitor is could rule out the card. If you don’t get the lines on the main monitor after doing so, it probably isn’t your card.


I am off to bed, William.

Re the Ghost;
Two things

ONE:

If your PC restarts and there is only one monitor (main monitor) in the display settings;

- Shut down the PC
- Plug in the 2nd monitor with ONE CABLE, probably the HDMI cable (leaving the main monitor plugged in also)
- Reboot

What do you see in the display settings now?


TWO:

After doing what I suggested in my previous post (Post #47) and If your PC restarted with only your main monitor plugged in yet there is still a Ghost Monitor showing, it’s back to the drawing board.
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build: 22631.3593
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    4 x LG 23MP75 1 x 24" LG M38H 1 x 32" LF6300 TV Monitor 1 x Wacom Pro 22" Tablet
    Screen Resolution
    All over the place
    Hard Drives
    2 x WD something Something 8TB HDD's / 2 x WD something Something 4TB HDD's / 1 x EVO 1TB SSD / 2 x QVO 1TB SSD's / 1 x EVO 250 GB SSD / 2 x QVO 1TB (External Hub) / 1 x EVO 1TB (Portable Backup Case)
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech G402 / G502 / Mx Masters / MX Air Cordless
    Internet Speed
    100/40Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    I’m on a horse.
  • Operating System
    Windows 11 Pro 22621.2215
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Graphics processor is an Intel Iris Xe
    Sound Card
    optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Other Info
    …still on a horse.
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