Re: no DVI with VAIO in docking station

R. Meijn wrote:
Paul,

I am very grateful for your response.
Following your suggestions I downloaded Monitor Asset Manager 1.26 and received a query running the tool.
So obviously the low speed serial interface is working.
The report generated did not specify any reference to DVI; any suggestion why DVI-interface and protocol would not be recognized?


Kind regards,

René Meijn
Hoeven
The Netherlands


During plugin, the sequence could be

1) Jack detection notices a resistive load on the color signals.

2) Video card driver accesses DDC/CI to get maximum resolution and
other information.

3) Video card can enable the output drive to the monitor.

We know (2) works now, because of your test result.

For (1), open the ATI Display Control Panel (double click the red ATI icon on
the Taskbar). Select "Display Manager" from the left hand list of options.
There is a button "Detect Displays", and mine claims that it can
"force detection". You can try that and see if the representation of
the displays changes or not, in the area just above the "Detect Displays"
button.

The only way to verify (3), is by indirect means. Try the current external monitor
on another computer, and verify it still works. And also borrow a known
working monitor, and try plugging that to your docking station as a test.

Are you using an extremely long DVI monitor cable ? Is the cable of a
good quality ? It could also be a problem with only part of the
cable - the DDC wires might be working, but perhaps the clock wires
for the digital part of the interface, have a break in the wire.

HTH,
Paul
.

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