"Unknown device" -can't find Nvidia

P

Panzer25

New Member
HP Pavilion dv5
Core 2 duo P7350 @2.00ghz
4gb ram
64bit
Vista Home

I get an unknown device warning in my device manager. It is for my graphics card. I click reinstall driver. It finds the driver but says it encounters a problem when installing. Its says: Nvidia GeForce 9200M GS access denied. I downloaded new drivers from Nvidia, installed them, restarted, no good. Tried uninstalling the device, restarting, installing driver = no good. Any thoughts?
 

My Computer

System One

Hi Panzer 25, if you right click on your driver installer and select properties then general tab is there an option to "unblock" ? if there isnt this isnt the problem otherwise all i can suggest is downloading the latest HP distributed driver as they are modified to suit your machine HP Support & Drivers i know with my laptop i have had trouble with Nvidea drivers & always had to use the HP distributed ones

If you dicide to go with the Hp drivers download the Chipset & Graphics drivers & save to your desktop

Disable your resident protection (antivirus etc)

Uninstall your graphics driver first & reboot

Then your chipset driver & reboot

Then install chipset driver first & reboot

Then your grapics driver second & reboot

Renable your Resident protection

(When running the installers right click on them & select Run as Administrator)

I hope this is of some help
 
Last edited:

My Computer

System One

  • Manufacturer/Model
    Hewlett Packard, compaq presario CQ60-305AU
    CPU
    AMD Athlon QI-46 2.1 Ghz
    Motherboard
    Wistron 303C
    Memory
    2048 Mb DDR2 SD Ram
    Graphics Card(s)
    NVidea GE Go Force 8200M G / 256Mb dedicated grapics memory
    Sound Card
    MCP78S NVidea High definition
    Monitor(s) Displays
    15.6" High Definition Brightview Widescreen
    Screen Resolution
    1336x768
    Hard Drives
    Toshiba MK2555GSX ATA
    Mouse
    Synaptics PS2/Touchpad
The chipset drivers, are they under device manager/system devices?
I see:
Intel ICH9 Family PCI Express Root Port 1....6
Also same thing but w/ Interface controller and another Thermal Subsystem
 

My Computer

System One

Panzer25 said:
The chipset drivers, are they under device manager/system devices?
I see:
Intel ICH9 Family PCI Express Root Port 1....6
Also same thing but w/ Interface controller and another Thermal Subsystem
Click to expand...

Uninstall them from the add/remove programs in the control panel
click on Nvidea drivers and just uninstall chipset & graphics dont worry about any others

Remember Uninstall-Chipset last
Inatall-Chipset first
 

My Computer

System One

  • Manufacturer/Model
    Hewlett Packard, compaq presario CQ60-305AU
    CPU
    AMD Athlon QI-46 2.1 Ghz
    Motherboard
    Wistron 303C
    Memory
    2048 Mb DDR2 SD Ram
    Graphics Card(s)
    NVidea GE Go Force 8200M G / 256Mb dedicated grapics memory
    Sound Card
    MCP78S NVidea High definition
    Monitor(s) Displays
    15.6" High Definition Brightview Widescreen
    Screen Resolution
    1336x768
    Hard Drives
    Toshiba MK2555GSX ATA
    Mouse
    Synaptics PS2/Touchpad
Uninstalled NVIDIA from the control panel, but there was just one program -no separate chipset and driver. Restarted then installed HP version of NVIDIA driver and chip set. No improvement and no change.
 

My Computer

System One

I am experiencing exactly the same problem. I have a Dell Studio XPS 13 (M1340) laptop with nVidia M9500 video card. The card and display were working (some minor flicker when connected to external monitor). I then executed a Windows Update. As that completed there was a blue screen and restart. After that, the nVidia diappeared from the device manager and only turns up as "Unknown Device."

Attempts to uninstall and re-install the driver have all failed, even using the drivers on the Dell CD that came with the susyem (the laptop is only 2 weeks old). Sometimes I receive the error message that the driver installed failed because "Access Denied." I even went back and did a system restore to the date just before the windows update. Still no change.

I also followed the advice given above. I too had no option to remove the nVidia chipset drivers, just the display drivers.
 

My Computer

System One

  • Manufacturer/Model
    Dell Studio XPS 13 (M1340)
    CPU
    Intel Core 2 Duo 9600 2.66 GHz
    Memory
    4 GB
    Graphics Card(s)
    nVidia Geoforce M9500
    Hard Drives
    Samsung SSD PM800 Se SCSI Disk (256GB)
Panzer25 said:
Uninstalled NVIDIA from the control panel, but there was just one program -no separate chipset and driver. Restarted then installed HP version of NVIDIA driver and chip set. No improvement and no change.
Click to expand...

HRmax said:
I am experiencing exactly the same problem. I have a Dell Studio XPS 13 (M1340) laptop with nVidia M9500 video card. The card and display were working (some minor flicker when connected to external monitor). I then executed a Windows Update. As that completed there was a blue screen and restart. After that, the nVidia diappeared from the device manager and only turns up as "Unknown Device."

Attempts to uninstall and re-install the driver have all failed, even using the drivers on the Dell CD that came with the susyem (the laptop is only 2 weeks old). Sometimes I receive the error message that the driver installed failed because "Access Denied." I even went back and did a system restore to the date just before the windows update. Still no change.

I also followed the advice given above. I too had no option to remove the nVidia chipset drivers, just the display drivers.
Click to expand...


Sorry guys, I am really unsure on where else to go with this all i can suggest is starting a new thread in our Drivers section and hopefully one of our members that is a bit more tecchy on this subject than i am will pick up on it :confused:
 

My Computer

System One

  • Manufacturer/Model
    Hewlett Packard, compaq presario CQ60-305AU
    CPU
    AMD Athlon QI-46 2.1 Ghz
    Motherboard
    Wistron 303C
    Memory
    2048 Mb DDR2 SD Ram
    Graphics Card(s)
    NVidea GE Go Force 8200M G / 256Mb dedicated grapics memory
    Sound Card
    MCP78S NVidea High definition
    Monitor(s) Displays
    15.6" High Definition Brightview Widescreen
    Screen Resolution
    1336x768
    Hard Drives
    Toshiba MK2555GSX ATA
    Mouse
    Synaptics PS2/Touchpad
Tried hidden admin account with no luck. Went into safe mode, deleted the driver, wet into regular login, let it automatically install.... It worked!
 

My Computer

System One

Panzer25 said:
Tried hidden admin account with no luck. Went into safe mode, deleted the driver, wet into regular login, let it automatically install.... It worked!
Click to expand...

Oh, Thats great I am really glad you found the solution & thank you for posting back it helps us all with our never ending quest for knowledge as well as others who pick up this thread in a search. all the best. :D
 

My Computer

System One

  • Manufacturer/Model
    Hewlett Packard, compaq presario CQ60-305AU
    CPU
    AMD Athlon QI-46 2.1 Ghz
    Motherboard
    Wistron 303C
    Memory
    2048 Mb DDR2 SD Ram
    Graphics Card(s)
    NVidea GE Go Force 8200M G / 256Mb dedicated grapics memory
    Sound Card
    MCP78S NVidea High definition
    Monitor(s) Displays
    15.6" High Definition Brightview Widescreen
    Screen Resolution
    1336x768
    Hard Drives
    Toshiba MK2555GSX ATA
    Mouse
    Synaptics PS2/Touchpad
Congrats !
 

My Computer

System One

  • Manufacturer/Model
    Acer Aspire X1700
    Motherboard
    ASUS
    Memory
    3 gigs
    Graphics Card(s)
    EVGA 1 gig GeForce 210
    Monitor(s) Displays
    Vizio 21" tv
    Screen Resolution
    1920x1080 resolution
    Hard Drives
    1 terabyte sata in 1 partition
    Cooling
    fans that came with it
    Keyboard
    basic USB
    Mouse
    basic USB
    Internet Speed
    3 megabits on a cable modem, wired
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