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
 
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My Computer

System One

  • OS
    Windows 11 Pro 22H2 (RP channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Gigabyte
    CPU
    AMD Ryzen 5900X 12-core
    Motherboard
    X570 Aorus Xtreme
    Memory
    32GB Corsair Platinum RGB 3600MHz
    Graphics Card(s)
    MSI Suprim X 3080 Ti
    Sound Card
    Soundblaster AE-5 Plus
    Monitor(s) Displays
    ASUS TUF Gaming VG289
    Screen Resolution
    3840x2160
    Hard Drives
    Samsung 980 Pro 2TB
    Samsung 970 Pro Plus 1TB
    Samsung 970 Pro 1TB
    Samsung T7 Touch 1TB
    PSU
    Asus ROG Strix 1000W
    Case
    Corsair D750 Airflow
    Cooling
    Noctua NH-D15S
    Keyboard
    Logitech G810
    Mouse
    Logitech G903 with PowerPlay charger
    Internet Speed
    500Mb/sec
    Browser
    Microsoft Edge

bobkn

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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 22621.898
    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 4090 OC
    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
    Samsung 970 Evo 4TB
    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 22621.898
    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)
    Gigabyte RTX 3090 ti
    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
    8 TB Seagate Ironwolf
    4TB 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)

BrianInEngland

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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 22H2 (RP channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Gigabyte
    CPU
    AMD Ryzen 5900X 12-core
    Motherboard
    X570 Aorus Xtreme
    Memory
    32GB Corsair Platinum RGB 3600MHz
    Graphics Card(s)
    MSI Suprim X 3080 Ti
    Sound Card
    Soundblaster AE-5 Plus
    Monitor(s) Displays
    ASUS TUF Gaming VG289
    Screen Resolution
    3840x2160
    Hard Drives
    Samsung 980 Pro 2TB
    Samsung 970 Pro Plus 1TB
    Samsung 970 Pro 1TB
    Samsung T7 Touch 1TB
    PSU
    Asus ROG Strix 1000W
    Case
    Corsair D750 Airflow
    Cooling
    Noctua NH-D15S
    Keyboard
    Logitech G810
    Mouse
    Logitech G903 with PowerPlay charger
    Internet Speed
    500Mb/sec
    Browser
    Microsoft Edge

jvickers

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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
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home built
    CPU
    Ryzen 9 5900X
    Motherboard
    MSI MPG X570 GAMING EDGE WIFI
    Memory
    Crucial Ballistix Sport LT 3200 MHz DDR4 DRAM Desktop Gaming Memory 32MB
    Graphics Card(s)
    ZOTAC RTX 3060 Twin Edge OC/ 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"/ Samsung SyncMaster BX2331 23"
    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
    120MB/s Download/ 10MB/s Upload
    Browser
    Edge (Chromium)
    Antivirus
    Norton 360
  • Operating System
    Windows 10
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    AMD FX Black Edition
    Motherboard
    Asus M5A97 LE R2.0
    Memory
    16MB DDR
    Graphics card(s)
    I forget, but it's old.
    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
    120MB/10MB
    Browser
    Chrome
    Antivirus
    Norton 360
    Other Info
    Currently taken down because of a lack of space :-(
    Maybe I'll make room somewhere and connect to the Dev channel if possible.
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