Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
Buying anything on Amazon? Please use the Geekzone Amazon aff link.




138 posts

Master Geek
+1 received by user: 53


Topic # 112034 23-Nov-2012 21:53 Send private message

OK - I've wasted several hours today trying to sort this out - It's now time to throw it out there...

We've got a HP dc7800p SFF. It fell over and died and has had a Windows reinstall. The dual monitor setup now will not work. The machine recognises that two monitors are connected, but one monitor does not receive a video signal.

Setup:

It's a run of the mill PC running Windows 7 Pro (32bit). The video card in question is a Nvidia GEForce and I've tried it with the default windows drivers - plus I have been to the Nvidia site and downloaded the most recent driver too. Plugged into the video card is a HP DVI Y Cable DMS-59 to Dual VGA Connector.

Device Manager shows a fully functioning Video card and monitors - but also listed in there is a PCI Serial Port & PCI Simple Comms Controller without drivers...

Making me crazy!


Create new topic
1571 posts

Uber Geek
+1 received by user: 11

Subscriber

  Reply # 722076 23-Nov-2012 22:41 Send private message

Have you gone into the screen resolution menu and made sure the desktop is set to display on the second monitor?

Control Panel\All Control Panel Items\Display\Screen Resolution (Adjust Resolution)

You may need to select to extend the desktop onto the second monitor under one of the drop down menus.

HTH



138 posts

Master Geek
+1 received by user: 53


  Reply # 722864 26-Nov-2012 09:36 Send private message

OK - I've been and had a closer look at this...

When two monitors are connected - port 1 does not display any image regardless of the settings. If I disconnect the monitor from port 1, the one connected to port 2 works as the primary display. If I disconnect port 2, then I can't see anything.

The monitor reports no signal... Our in-house IT people want to buy a new video card - Surely it is something to do with the two PCI devices that have no drivers.

1199 posts

Uber Geek
+1 received by user: 46


  Reply # 722872 26-Nov-2012 09:55 Send private message

F10 on startup, make sure onboard PCI video device is turned off (if it is a dual head card and has its own GPU that is).

HP/Compaq are renound for picking onboard PCI video over cards. If the card is infact fine you should see the bIOS screen on both at a default 800x600 or so res during startup before it hits the driver init stage either way.

Chances are, now the onboard port is active as the second monitor and you need to tell it to use the card (port 2/3) instead.

Those 2 PCI devices missing drivers will be a red hearing. I take it you did not use the HP restore CD with the drivers injection that then asks for an OS. You can try HP SoftPaq Downloader to fill in the gaps, but doubt they are related (usually the IDE/Intel controller misreporting)



138 posts

Master Geek
+1 received by user: 53


  Reply # 723549 27-Nov-2012 11:56 Send private message

Once again CoffeeBaron saves the day - Thanks for that...

3793 posts

Uber Geek
+1 received by user: 1052

Trusted
Subscriber

  Reply # 723566 27-Nov-2012 12:17 Send private message

No worries Dave, was a rogue duplicate screen, I.E. widows thought there were 3 screens, so disconnected screen "2" and did extend desktop to screen "3".




Chorus has spent $1.4 billion on making their ADSL broadband network faster. Why not spend a couple of hundred to make sure you are getting the most out of your connection?
Geekzone special price: $150* for master splitter install, normally $200+ through your ISP. Auckland and Waikato areas.
*Travel charges may apply. Additional costs may apply for complex installs.
I install - Naked DSL, DSL Master Splitters, VoIP, RBI Rural Broadband. Also a dealer for WorldxChange.
Need help in Auckland or Waikato? Click my email button, or email me direct: [my user name] at geekzonemail dot com

Create new topic




Twitter »
Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





Trending now »

Hot discussions in our forums right now:

Netflix officialy launching in NZ in March
Created by jarj, last reply by tdgeek on 21-Nov-2014 19:08 (97 replies)
Pages... 5 6 7


Gull Employment Dispute.
Created by networkn, last reply by Geektastic on 23-Nov-2014 13:58 (65 replies)
Pages... 3 4 5


Which one is right for me? M8, Z3, S5 or other?
Created by makiomoto, last reply by makiomoto on 20-Nov-2014 13:52 (40 replies)
Pages... 2 3


Slingshot line speed
Created by Frankiej45, last reply by Frankiej45 on 20-Nov-2014 14:38 (14 replies)

Chief Censor - He's at it again!
Created by scuwp, last reply by Nebbie on 19-Nov-2014 16:23 (42 replies)
Pages... 2 3


Little Wins labour Leadership
Created by MikeAqua, last reply by Aredwood on 21-Nov-2014 18:47 (53 replies)
Pages... 2 3 4


Orcon: Why did you cancel my email account without telling me??
Created by old3eyes, last reply by old3eyes on 21-Nov-2014 17:03 (13 replies)

Council recycling.....
Created by xpd, last reply by richms on 19-Nov-2014 17:17 (27 replies)
Pages... 2



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.