Solved

HP DV6701ca laptop display only works when external monitor connected

Posted on 2009-05-15
3
785 Views
Last Modified: 2013-11-17
I have a laptop whose display only seems to come on when an external monitor is plugged into the side VGA port. I'm running Vista by the way. When I unplug the external monitor, the display turns off for a second, comes back on for a second and then finally off. You can also hear the Vista ker-clunk, ker-clunk a few times as if it's detected a change in video.

Just for fun, I brought up the Nvidia control panel and set it to laptop display (had the external hooked up of course). I unplugged the external monitor and waited 10 or so seconds while the laptop did it's thing. The screen is now black and I plugged in the external monitor. Nvidia briefly showed the display as analogue before showing laptop display 5 seconds later as it switched over. I did hook up an svideo cable to my flat screen and Nvidia shows that as TV. So I'm not sure what this analogue display thing is about.

Any ideas? Thanks.

I could always youtube what I'm seeing.
0
Comment
Question by:Waterloo_PORT
3 Comments
 
LVL 88

Expert Comment

by:rindi
ID: 24397431
Check for a function key combination (on most laptops it's Fn+F7) to change from external to internal Display. Also check within the BIOS, there may be a setting there too with which to select the main display.
0
 
LVL 14

Expert Comment

by:steveoskh
ID: 24563588
Vista had issues with hibernat/sleep modes and the laptop display.  Coming out of sleep the display would not work at all but an external one would.  This is different than you describe but sounds like it might be related.
You could try deleting the display from the hardware profile and allowing windows to 're-find it".
The sleep issues were solved with the Vista Service Pack.  Have you installed it?
I would patch Vista and then get any patches from HP.  
Actually for HP, I would start with the web support chat http://www.hp.com/go/ispe   
0
 
LVL 1

Accepted Solution

by:
Waterloo_PORT earned 0 total points
ID: 24615849
I got the problem fixed the same day I posted. I apologize for not posting this fact right away.

It's tough to explain exactly what I did to fix to problem but in the end the Nvidia control panel was able to remember that my laptop was the primary display no matter whether an external device was plugged in or not. It may have had something to do with the combination of dual display vs extended desktop settings and which screen was the primary. I'm pretty sure the problem was on the Nvidia control panel side.

Thanks for your suggestions though.
0

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Wireless Connection On HP notebook 6 57
HD to RCA 7 118
lenovo docking station serial number 6 78
CMOS battery 3 42
I originally posted this Article Here (http://www.bestelectronicarticles.com/computers/software-troubleshooting/how-to-find-a-driver-for-you-devices-in-windows.html) and thought I would now share with the Experts Exchange community. Driver Proble…
I am not new to IT, I have been working in the field since 1985.  But recently I came up against something that stumped even me (it doesn't happen as often as I would like).  I was running a screencasting session from the laptop to my TV via ChromeC…
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question