When you show hidden devices, note the Bluetooth icon you see is semi-transparent (not opaque). That indicates a 'non-present' device. Sometimes also called a 'ghost' device. The driver is still installed but the device is not currently detected (i.e. Device can be disconnected when. Device unplugged (e.g. Removing a USB device. Looking in device manager - the audio devices all say working OK. But on bar at bottem of screen get speaker with red cross - Playing audio - Audio trouble shouter cannot find any problems. Sound settings say - No output or Input devices found. Have tried to re-install Realtek audio drivers for motherboard - installed but no change. The fans are spinning, so it's installed correctly. GTX 1050 won't even show on device manager. On device manager, there is a section named: Unknown Devices. Under that there is a thing called Unknown PCI device. It says that there are no drivers installed. I have installed a software, called PCI-Z. It can provide info about the unknown device.
This issue is caused when Microsoft Windows does not properly detect the chipset or videodisplay.
Driver developers are allowed to add additional drivers in the form of a filter driver or a new HID Client driver. The criteria are described below: Filters Drivers: Driver developers should ensure that their value-add driver is a filter driver and does not replace (or be used in place of) existing Windows HID drivers in the input stack. The drivers stay, yes. But the devices do not (at least not visable in the device manager). The registry keeps track of devices and their device id# anytime something is connected/installed. Under WinOS normal mode, old devices shouldn't be showing in the device manager, that is not normal at all.
Corrupt or missing motherboard or chipset drivers
Download and install the latest chipset and video card drivers. If you or someone you know built your computer, it came with the motherboard CD. This CD contains the chipset drivers. Otherwise, you can find drivers for all the major chipsets on our motherboard drivers page.
Corrupt or missing video card drivers
If installing the latest chipset or motherboard drivers doesn't resolve your issue, make sure you have the latest drivers installed for your video card. For a listing of video card drivers, see our video card drivers page.
Other PCI device that Windows cannot identify
If you tried the above two steps and your Windows Device Manager still contains an Unknown PCI device, likely the device cannot be identified.
If you that the device not being identified is installed, we suggest you obtain the latest drivers for that device. A listing of drivers is on our drivers page.
If you have recently finished installing or reinstalling Windows onto the computer and are getting the unknown PCI device, we suggest you manually identify the PCI device through the registry.
Drivers Sg 310 Input Devices List
Additional information
Drivers Sg310 Input Devices
- See the PCI and drivers definition for further information and related links.