Solved Unusual graphics problem!


BrianInEngland

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My screen supports 10-bit HDR, so I set the Nvidia driver to output 10-bit and enabled HDR in Windows. The Advanced display settings show as '10-bit' (the screen is actually 8-bit+FRC) but 10-bit output support is there.

New graphics driver today, booted in Safe mode, did the DDR, installed new drivers. The same process I've always done with new GPU drivers.
Restarted - no 10-bit support in the Nvidia driver, although HDR is available in Windows. The Advanced display now shows '8-bit plus dithering'

So, thinking it's the new drivers, I restored a system image I made this morning. Same problem, no 10-bit working.
Uninstalled the new AMD chipset driver, same problem.

I don't get what's happened here, if the driver was bad then the known-working backup should still work?

So I tried a clean install on a different drive, same hardware. 10-bit? All working. Updated chipset and Nvidia drivers, still working. Exactly the same Windows build, drivers and hardware (22621.105)

Clearly NOT a hardware problem but what could have happened here? Something must have changed before the daily image backup yesterday morning that I'm not aware of but I'm at a loss why I've suddenly lost 10-bit graphics support
 
Last edited:

My Computer

System One

  • OS
    Windows 11 Pro 23H2 (RP channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Gigabyte
    CPU
    AMD Ryzen 5900X 12-core
    Motherboard
    X570 Aorus Xtreme
    Memory
    64GB Corsair Platinum RGB 3600MHz CL16
    Graphics Card(s)
    MSI Suprim X 3080 Ti
    Sound Card
    Soundblaster AE-5 Plus
    Monitor(s) Displays
    ASUS TUF Gaming VG289Q
    Screen Resolution
    3840x2160
    Hard Drives
    Samsung 990 Pro 2TB
    Samsung 980 Pro 2TB
    Samsung 970 Evo Plus 1TB
    Samsung 870 Evo 4TB
    Samsung T7 Touch 1TB
    PSU
    Asus ROG Strix 1000W
    Case
    Corsair D750 Airflow
    Cooling
    Noctua NH-D15S
    Keyboard
    Asus ROG Flare
    Mouse
    Logitech G903 with PowerPlay charger
    Internet Speed
    500Mb/sec
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender
If your display is 8 bit + 2 bits FRC (frame rate control, temporal dithering), then it is, in fact, 8 bits plus dithering. (Nothing wrong with that; most still call that a 10 bit display.)

I'm surprised. In the past, I used 8+2 monitors, and the nVidia drivers showed 10 bits. (They were not HDR capable monitors, though.) MY current monitors support HDR, but they are native 10 bit, so I can't check what the nVidia control panel would say with FRC.
 

My Computers

System One System Two

  • OS
    Windows 11 22631.2861
    Computer type
    PC/Desktop
    Manufacturer/Model
    homebuilt
    CPU
    Amd Threadripper 7970X
    Motherboard
    Gigabyte TRX50 Aero D
    Memory
    128GB (4 X 32) Kingston DDR5 5200 (RDIMM)
    Graphics Card(s)
    Gigabyte RTX 4090 OC
    Sound Card
    none (USB to speakers), Realtek
    Monitor(s) Displays
    Philips 27E1N8900 OLED
    Screen Resolution
    3840 X 2160 @ 60Hz
    Hard Drives
    Crucial T700 2TB M.2 NVME SSD
    WD 4TB Blue SATA SSD
    Seagate 18TB IronWolf Pro
    PSU
    eVGA SuperNOVA 1600 GT
    Case
    Lian Li 011 Dynamic Evo XL
    Cooling
    Alphacool Eisbaer Pro Aurora 360, with 3 Phanteks T30 fans
    Keyboard
    Logitech K120 (wired)
    Mouse
    Logitech M500s (wired)
    Internet Speed
    1200 Mbps
  • Operating System
    windows 11 22631.2861
    Computer type
    PC/Desktop
    Manufacturer/Model
    homebuilt
    CPU
    Intel I9-13900K
    Motherboard
    Asus RoG Strix Z690-E
    Memory
    64GB G.Skill DDR5-6000
    Graphics card(s)
    Gigabyte RTX 3090 ti
    Sound Card
    built in Realtek
    Monitor(s) Displays
    Asus PA329C
    Screen Resolution
    3840 X 2160 @60Hz
    Hard Drives
    WDC SN850 1TB
    8 TB Seagate Ironwolf
    4TB Seagate Ironwolf
    PSU
    eVGA SuperNOVA 1300 GT
    Case
    Lian Li 011 Dynamic Evo
    Cooling
    Corsair iCUE H150i ELITE CAPELLIX Liquid CPU Cooler
    Mouse
    Logitech M500s (wired)
    Keyboard
    Logitech K120 (wired)
If your display is 8 bit + 2 bits FRC (frame rate control, temporal dithering), then it is, in fact, 8 bits plus dithering. (Nothing wrong with that; most still call that a 10 bit display.)

I'm surprised. In the past, I used 8+2 monitors, and the nVidia drivers showed 10 bits. (They were not HDR capable monitors, though.) MY current monitors support HDR, but they are native 10 bit, so I can't check what the nVidia control panel would say with FRC.
Mine has ALWAYS said 10-bit though, now it's only saying 8-bit,and the fact that a clean install on the same hardware shows as 10-bit is very strange. I can tell that the display isn't right in 8-bit mode

Anyway I took the nuclear option, did a clean install of Windows 11 this morning. 10-bit video output is working properly now, and I now have Smart App control in Device Security.
 
Last edited:

My Computer

System One

  • OS
    Windows 11 Pro 23H2 (RP channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Gigabyte
    CPU
    AMD Ryzen 5900X 12-core
    Motherboard
    X570 Aorus Xtreme
    Memory
    64GB Corsair Platinum RGB 3600MHz CL16
    Graphics Card(s)
    MSI Suprim X 3080 Ti
    Sound Card
    Soundblaster AE-5 Plus
    Monitor(s) Displays
    ASUS TUF Gaming VG289Q
    Screen Resolution
    3840x2160
    Hard Drives
    Samsung 990 Pro 2TB
    Samsung 980 Pro 2TB
    Samsung 970 Evo Plus 1TB
    Samsung 870 Evo 4TB
    Samsung T7 Touch 1TB
    PSU
    Asus ROG Strix 1000W
    Case
    Corsair D750 Airflow
    Cooling
    Noctua NH-D15S
    Keyboard
    Asus ROG Flare
    Mouse
    Logitech G903 with PowerPlay charger
    Internet Speed
    500Mb/sec
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender
Mine has ALWAYS said 10-bit though, now it's only saying 8-bit,and the fact that a clean install on the same hardware shows as 10-bit is very strange. I can tell that the display isn't right in 8-bit mode

Anyway I took the nuclear option, did a clean install of Windows 11 this morning. 10-bit video output is working properly now, and I now have Smart App control in Device Security.
You might want to mark this thread as solved.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro Beta
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home built
    CPU
    Ryzen 9 5900X
    Motherboard
    MSI MPG X570S Edge Max WiFi
    Memory
    Patriot Viper Gaming DDR4 Extreme Performance (2 x32MB)
    Graphics Card(s)
    ZOTAC RTX 3060 Twin Edge OC 12GB GDDR6/ ZOTAC Gaming GeForce GTX 1660 Super 6GB GDDR6 192-bit Gaming Graphics Card
    Sound Card
    Proprietary
    Monitor(s) Displays
    ViewSonic XG2530 25"/Benq XL2411P 24"/ ASUS VA24DQSB) 23.8"
    Screen Resolution
    1920x1080 240Hz/144Hz/60Hz (based on monitor setup above)
    Hard Drives
    SK hynix Gold P31 1TB PCIe NVMe Gen3 M.2 2280 Internal SSD
    ADATA XPG SX8200 Pro 1TB
    Samsung SSD 860 EVO 1TB 2.5 Inch SATA III Internal SSD
    PSU
    Thermaltake Smart 700W 80+ White Certified PSU
    Case
    Rosewill ATX Mid Tower Gaming Computer Case, Gaming Case with Blue LED for Desktop
    Cooling
    Corsair iCUE H60i RGB PRO XT Liquid CPU Cooler
    Keyboard
    Corsair K70
    Mouse
    Logitech MX Master 3
    Internet Speed
    ~950Mb/s upload/ ~700Mb/s download
    Browser
    Edge (Chromium)
    Antivirus
    Norton 360
  • Operating System
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    Ryzen 7 3700X
    Motherboard
    MSI B550 Gaming GEN3 Gaming Motherboard
    Memory
    32MB DDR4
    Graphics card(s)
    I forget, but it's old. I can't see the need to upgrade it.
    Sound Card
    Propietary
    Monitor(s) Displays
    ACER LED 24"
    Screen Resolution
    1920X1080
    Hard Drives
    1TB Samsung SSD 3.5"
    Case
    Corsair
    Cooling
    Stock
    Mouse
    Logitech
    Keyboard
    Logitech
    Internet Speed
    ~750Mb/s download / ~750Mb/s upload
    Browser
    Edge
    Antivirus
    Defender and Malware Bytes

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