Solved

HP DV6701ca laptop display only works when external monitor connected

Posted on 2009-05-15
3
786 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

Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
wifi turns off automatically in window 10 40 225
no display on laptop 5 83
Occasional (daily) WiFi adapter fail on Windows 10 laptop 14 91
ASUS G750J Gaming laptop 6 21
The Samsung SSD 840 EVO and 840 EVO mSATA have a well-known problem with a drop in read performance. I first learned about this in an interesting thread here at Experts Exchange: http://www.experts-exchange.com/Hardware/Storage/Hard_Drives/Q_2852…
In this article you will get to know about pros and cons of storage drives HDD, SSD and SSHD.
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…

830 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