Notebook VGA output, has it a digital signal?

I have a Presario A900 (A961EM) with a VGA output. I want to connect it to my HDMI TV which has a HDMI socket. If I connect the laptop to my TV with a VGA to HDMI lead will it work with video and sound?
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I am highly certain that it will not work, I'm afraid..
VGA is an analogue signal, HDMI is digital.
If you have a DVI port on the TV, you will be able to connect with a VGA to DVI cable.
Also, VGA does NOT carry sound data, so you would need to connect the sound elsewhere, via the headphone jack.
Hope this helps
- Dec

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Nvidia Control Panel. Change the video output. Should work.

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Hi Frank
Thanks for taking the trouble to reply. I thought this thread had gone dead, like my projector connection!
Well, I've been running around doing all kinds of things and I found a solution - perhaps totally by chance.
I went to confer with a 'video guru' at my local Apple retailer. He reckoned that my PB was sending out the video signal 'too fast' (faster processor than previous iBook and PB) so the projector could not pick up the signal. He advised me to try to reduce the resolution to 800x600 and also use the lowest possible refresh rate. Well, that sounded plausible.
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Counter Output as Sample Clock of Digital Signals

I have a situation where I need to use a hardware counter as sample clock of digital output signals.
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/pek

Thank you for your answers, but I can't get it to work.
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G570 4334 Digital signal out through VGA?

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Thank you for your reply Jin Li.
I have another question - Why does this cable exist? VGA to HDMI It includes a disclaimer in the description -
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FPGA Digital Signal Output Problem

Hi,
I am having a problem outputting a signal through my PCI-7831 and would appreciate any advice anyone has as I am beginning to crack the wall where I am banging my head into it.
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For the second loop, I am going to the next frame in the host VI. This host works the same as the above sequence but only 1 value is being written, 0,1.
In any case, it works but has 2 bugs I can't reason.
The last, and only the last, iteration of the "both high" period is wrong. The 1,1 becomes 1,1, then 0,1 about halfway through the wait, then the 1,0 occurs properly, then the 0,1 period begins properly.
The other bug is that at the beginning of the 1,1; 1,0 sequence the 1,0 is repeated twice.
I am using these signals to control a custom high amplitude bipolar digital signal generator.
I have posted my VI's if anyone would like to see them.
Thanks,
Ben
Message Edited by bugsmashers on 07-21-2005 12:57 PM
Message Edited by bugsmashers on 07-21-2005 12:58 PM
Attachments:
Preset_power_top_WHILE_loops1.vi ‏311 KB
Digital Pulse Amplitude Control Preset Power.vi ‏216 KB
preset_power_data_gen_FPGA.vi ‏684 KB

Hi Ben-
I took a look at your code, and I can explain the first error you are talking about, but I don't think I understand the second error. For the first error, lets start on the last iteration of the first while loop in your host code. It first waits on IRQ 0, then sets the 'high' and 'low' parameters on RT, then acknowledges IRQ 0. At this point on the FPGA side, the top loop (1,1 loop) begins to execute and sets the lines to 1,1. Meanwhile back on the host, your first loop completes and the second loop starts. The first thing the second loop does is wait on IRQ 1. It doesn't have to wait at all because IRQ 1 was set long ago when the FPGA program started, so it clears IRQ 1, and the second FPGA Loop immediately sets the lines to 0,1. The next thing that happens is your top loop in FPGA (1,1 loop) finishes waiting for the time specified in 'high' and moves to the next sequence frame and sets the lines to 1,0, next the second loop finishes its wait ('Wait Zero') starts the loop over again, sends IRQ 1, which is handled by your second host loop, it acknowledges IRQ 1, and then your second FPGA loop sets the lines back to 0,1. Long explanation, but I hope not too confusing. Synchronizing the host and FPGA with everything happening in parallel can get to be a lot to wrap your brain around.
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Good luck, sorry I couldn't help on the second problem, if it's still an issue, post back with a little more detail on what '1,0 is repeated twice' means
Dustin

How to input/output a digital signal and acquire an analog signal at the same time?

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Allen, China.

Hi,
Have things changed over the years?
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hello
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...My problem is how i can make this delay betwen create and measure a signal.
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How to output a digital signal on negative slope of the clock?

Hi
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Pawel
Solved!
Go to Solution.

Which device are you using to generate your digital signal. What is the clock source? Can you attach your vi? Normally, there is a DAQ function to configure the trigger where you choose the trigger source and the trigger slope (rising or falling), which would be falling for a negative slope.
- tbob
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Thanks for your answer but see attached file to see what i want to do.
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signal.txt ‏1 KB

T420 (4180-1G8): Problem with VGA output to external monitor

Hello,
I am trying to get the VGA output to an external monitor to work.
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00 FF FF FF FF FF FF 00 30 AE A1 40 00 00 00 00
01 14 01 03 80 1F 11 78 EA CC CE 99 58 50 8E 26
24 4B 53 00 00 00 01 01 01 01 01 01 01 01 01 01
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40 2A 33 00 35 AE 10 00 00 18 00 00 00 0F 00 A9
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Stephane B.
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Solved!
Go to Solution.

Follow-up:
I have tried the latest "generic" Intel driver after completely uninstalling the device driver from device manager: without success.
I have tried another monitor from a different manufacturer: no luck.
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Notebook VGA output, has it a digital signal?

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