(!) unknown device

4now · 11-February-07, 06:49 PM

hi
I have a dual monitor settup
NEC(primary) & HP

In the device manager 3 listings are showing
HP vs17 flat panel monitor
NEC MultiSync 90GX2
(!) Unknown device

The unknown device:
Monitors
Hewlett-Packard
the drivers are not installed (code 28)
Device Instance Id: ROOT.\MONITOR\0000

I'm not sure that there are any problems
I've just been having some shutdown and resume problems lately
and have been troubleshooting - and that's how I discovered it

also windows-update offers a driver update for HP
which I presume is for the unknown device
because installation fails

any idea what this 3rd listing might be
and how it can be corrected

thanks

Slaymate · 11-February-07, 07:11 PM

Delete/uninstall all of the monitors in the device manager. You may want to do this in
"Safe Mode". Then restart the system and let Windows find your new devices and
install them. Hopefully only your real ones show back up :-)

11-February-07, 06:49 PM	#1 (permalink)
4now Apex Techie I Join Date: Nov 2004 Posts: 68	(!) unknown device hi I have a dual monitor settup NEC(primary) & HP In the device manager 3 listings are showing HP vs17 flat panel monitor NEC MultiSync 90GX2 (!) Unknown device The unknown device: Monitors Hewlett-Packard the drivers are not installed (code 28) Device Instance Id: ROOT.\MONITOR\0000 I'm not sure that there are any problems I've just been having some shutdown and resume problems lately and have been troubleshooting - and that's how I discovered it also windows-update offers a driver update for HP which I presume is for the unknown device because installation fails any idea what this 3rd listing might be and how it can be corrected thanks

11-February-07, 07:11 PM	#2 (permalink)
Slaymate PCApex Reviewer From Hell Join Date: Jun 2004 Location: Sunnydale Posts: 2,772	Re: (!) unknown device Delete/uninstall all of the monitors in the device manager. You may want to do this in "Safe Mode". Then restart the system and let Windows find your new devices and install them. Hopefully only your real ones show back up :-) __________________

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
project unknown	project vegas	Project Worklogs	13	08-July-06 05:46 PM
6600GTs showing as Unknown device	Dex	Video Cards	9	19-January-06 09:47 AM
unknown m/b	keepaf1	Motherboards / CPUs	13	08-April-05 08:10 PM
How to identify an unknown PSU?	Spectrum	Other Hardware	10	08-May-04 11:23 AM
unknown cpu usage	Fatsobob	Anything Goes	23	09-February-04 01:13 PM