I can't get DVI to display with NC6230 and Docking PA287A (304 Views)
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Honored Contributor
Liem Nguyen
Posts: 306
Registered: ‎02-11-2003
Message 1 of 7 (304 Views)

I can't get DVI to display with NC6230 and Docking PA287A

[ Edited ]

Dear HP Support,

I have HP Notebook NC6230 with an Advanced Docking PA287A, the standard VGA port is working fine, but I can't get the DVI port to work, there is no display at all.

The Falt screen monitor and DVI cable work when I connect to a different computer, but it doesn't work when I switch to the DVI port on the Docking.

Any help would be appreciated.

 

 

P.S. This thread has been moevd from Archived Desktops and Workstations Boards > Windows based to Notebook - HP ProBook, EliteBook, Compaq, Slate/Tablet PC, Armada, LTE. - Hp forum Moderator

Honored Contributor
Ronald Postma
Posts: 2,101
Registered: ‎05-04-2003
Message 2 of 7 (304 Views)

Re: I can't get DVI to display with NC6230 and Docking PA287A

Hi Liem,
this is getting a common problem, I noted the same problem with a nx7400 and also tested it with an nc6120, we still use the good old D-Sub cable. I still wonder why HP put a DVI port on their dockingwhen so it looks like 3 models do not work and I think even more. I do not even know a model that does work.

My post is listed here:
http://forums1.itrc.hp.com/service/forums/bizsupport/questionanswer.do?threadId=1110446

I hope you have more luck finding a solution then I had,

Regards, ronald
The logic of Microsoft: "Press START to shut down the pc"
Respected Contributor
peter wolfe
Posts: 174
Registered: ‎06-11-2002
Message 3 of 7 (304 Views)

Re: I can't get DVI to display with NC6230 and Docking PA287A

> I still wonder why HP put a DVI port on their dockingwhen so it looks like 3
> models do not work and I think even more. I do not even know a model that
> does work.

Definitely not all laptop models support DVI out when docked.
Typically the laptops with "budget" graphics, i.e. the Intel Media
Graphics Accelerator do not support this. I don't know
if this is a shortcoming of the graphics chip itself or
the implementation. The ATI-based graphics solutions typically do support
DVI out when docked and I use this extensively in order
to run my laptop as a dual-head setup - one digital LCD monitor
on the DVI and another monitor on the analog VGA connector.

Usually the docking station documentation indicates which models
support the DVI port as do the specifications for the laptop itself.
For example, the quickspecs for the nw8240 reference
the resolutions supported when using an external display:

>External:
>VGA port supports resolutions up to 2048 x 1536 at 75 Hz, and
>lower resolutions at up to 100 Hz
>
>DVI port in optional HP Docking Station (sold separately) supports
>resolutions up to 1600 x 1200 at both full and reduced blanking,
>and 1920 x 1200 at reduced blanking

The quickspecs
(http://h18000.www1.hp.com/products/quickspecs/12440_na/12440_na.HTML) for your nx7400 document that only eternal VGA is
supported:

>External Up to 32-bit per pixel color depth
> VGA port supports resolutions up to 2048 x 1536 at 75 Hz, and
> lower resolutions at up to 100 Hz
Honored Contributor
Liem Nguyen
Posts: 306
Registered: ‎02-11-2003
Message 4 of 7 (304 Views)

Re: I can't get DVI to display with NC6230 and Docking PA287A

Thanks all for the help.
I was hoping to take advantage of the DVI port, but ....
Occasional Collector
jim154
Posts: 3
Registered: ‎07-10-2010
Message 5 of 7 (304 Views)

Re: I can't get DVI to display with NC6230 and Docking PA287A

Liem,
I have a similar problem with my (home) nc6230 and (work) nc6400 both of which use a PA286A. My monitor will do a number of different things, from (A) automatically disconnecting then re-connecting and when the display comes back up the display settings have been changed. (B) the monitor doen't work at all. (C) My (work) extended desktop changes to a single for no apparent reason.
Solution: I found that if I leave the lid to the laptop open, all those problems I just spoke of simply go away. If anyone can explain this I'd love to hear it.
Honored Contributor
V. Nyga
Posts: 4,874
Registered: ‎09-20-2002
Message 6 of 7 (304 Views)

Re: I can't get DVI to display with NC6230 and Docking PA287A

Hi jim154,

first - welcome to this forum.
Second - you shouldn't answer to a 3 year old thread! Opening your own thread and posting the link of another thread is much more appreciated.
In your case - maybe it's related to your power control settings.
Your system must have the "Put computer to sleep" set to Never when plugged in...

V.
*** Say 'Thanks' with Kudos ***
Occasional Collector
jim154
Posts: 3
Registered: ‎07-10-2010
Message 7 of 7 (304 Views)

Re: I can't get DVI to display with NC6230 and Docking PA287A

Liem,
Thank you, for the welcome and both bits of advice, I will pay more attention to the threads I reply to...... You were correct about my powere settings and even though the changes in my power settings did seem to make a positive difference for 1 day, the very next day it was back to the same problem. I'll keep searching for answers.
Thanks again,
Jim
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