How to manage with DVI interface?

[YUV]

Hi, All.

Most of all DVI receivers (I didn't inspect for all) have CTL pins (CTL1, -2, -3). Their functions are described as "General output control signal 1(2,3)". It is good opportunity to carry control signals for target device via DVI.
Unfortunately, I never have seen any applications of them.
Of course, if I made own DVI transmitter, I would make that management. But I would like to use a common VGA card with DVI output. So, I have no info about access to those pins on transmitter's side.
I have inspected CTL1..3 pins with oscilloscope - no one was changing.
Have somebody any info or, may be, met any software, which can manage those signals? Are there any standard soft libraries?

 

[samsuffy]

you may find some interesting info here :

**broken link removed**

 

[YUV]

you may find some interesting info here :

**broken link removed**

Sorry, Samsuffy, you sent me for DVI standard. It's very kind of you, but I have already got it. I repeat the question: how to manage CTL1..3 signals of common VGA card? The standard doesn't describe these things.

 

[spktu]

Did You find how to manage CTL1..3 signals of common VGA car

Did You find how to manage CTL1..3 signals of common VGA card?

 

[YUV]

Unfortunately, I haven't found how to manage CTL1..3 signals. If you have luck to find that, let me know, please.