HDMI output not working.

[MvdB]

That sounds like vga is cloned from the hdmi tv.

I would boot in Safe mode, delete graphics drivers, reboot with no tv or vga connection, let W7 re-install...
And hopefully, start over cleanly.

 

[RockStar21]

That sounds like vga is cloned from the hdmi tv.

I would boot in Safe mode, delete graphics drivers, reboot with no tv or vga connection, let W7 re-install...
And hopefully, start over cleanly.

Before I do that... quick question. Wouldn't restoring W7 from a system image have fixed the problem if it were a driver issue?

 

[TVeblen]

If the image were taken before the issue began to show then yes, it would.

 

[RockStar21]

If the image were taken before the issue began to show then yes, it would.

Yeah... system was definitely working fine when image was taken.

 

[RockStar21]

What about flashing the BIOS... think that might be worth a shot?

 

[MvdB]

What about flashing the BIOS... think that might be worth a shot?

I'd try the other steps first, ie my previous post and if that does not work, go back to that previous image. Only flash BIOS if that does not work either...

 

[TVeblen]

No, don't flash your BIOS. The only time flashing the BIOS is necessary is to gain some increased functionality or to correct bug fixes. There is a very small possibility that your issue could be due to a BIOS code bug, but pretty unlikely IMHO, as you had the functionality previously.

If you want to test, a better option is to reset the BIOS. If your issue were caused by some change to your BIOS settings, resetting would correct that.

The easiest way is to go into the BIOS, navigate to the last tab (usually the EXIT tab), and choose "Load Setup Defaults" or similar. It is always a good idea to write down your current settings before you do this in case you need to go back to any original setting.

A more thorough way is to do a "BIOS Reset", which on a laptop is equal to a CLR CMOS on a desktop. You do this by shutting down the laptop, unplug the power supply, remove the laptop battery, the press and hold down the POWER button for a good 30 seconds or more to drain all power from the motherboard. Then replace the battery, plug in the power supply and reboot.

Both of the above procedures work without altering the BIOS chip. Flashing the BIOS involves erasing the BIOS chip and rewriting new code to it and always has the potential danger of failing (turning your computer into a "brick", or a doorstop) and should only be performed for good reason.

 

[RockStar21]

No, don't flash your BIOS. The only time flashing the BIOS is necessary is to gain some increased functionality or to correct bug fixes. There is a very small possibility that your issue could be due to a BIOS code bug, but pretty unlikely IMHO, as you had the functionality previously.

If you want to test, a better option is to reset the BIOS. If your issue were caused by some change to your BIOS settings, resetting would correct that.

The easiest way is to go into the BIOS, navigate to the last tab (usually the EXIT tab), and choose "Load Setup Defaults" or similar. It is always a good idea to write down your current settings before you do this in case you need to go back to any original setting.

A more thorough way is to do a "BIOS Reset", which on a laptop is equal to a CLR CMOS on a desktop. You do this by shutting down the laptop, unplug the power supply, remove the laptop battery, the press and hold down the POWER button for a good 30 seconds or more to drain all power from the motherboard. Then replace the battery, plug in the power supply and reboot.

Both of the above procedures work without altering the BIOS chip. Flashing the BIOS involves erasing the BIOS chip and rewriting new code to it and always has the potential danger of failing (turning your computer into a "brick", or a doorstop) and should only be performed for good reason.

Ok, thanks for your input TVeblen... I'll avoid flashing. Definitely don't want to turn this somewhat minor issue into something catastrophic.

I tried resetting the BIOS a few days ago... no luck.

 

[RockStar21]

What about flashing the BIOS... think that might be worth a shot?

I'd try the other steps first, ie my previous post and if that does not work, go back to that previous image. Only flash BIOS if that does not work either...

Restoring from system image was one of the first things I tried when this happened... didn't fix. Just deleted drivers in safe mode... same situation. Guess we're running out of options here.

 

[MvdB]

What about flashing the BIOS... think that might be worth a shot?

I'd try the other steps first, ie my previous post and if that does not work, go back to that previous image. Only flash BIOS if that does not work either...

Restoring from system image was one of the first things I tried when this happened... didn't fix. Just deleted drivers in safe mode... same situation. Guess we're running out of options here.

No.... You should still try the bios reset, not flash...

 

[RockStar21]

I'd try the other steps first, ie my previous post and if that does not work, go back to that previous image. Only flash BIOS if that does not work either...

Restoring from system image was one of the first things I tried when this happened... didn't fix. Just deleted drivers in safe mode... same situation. Guess we're running out of options here.

No.... You should still try the bios reset, not flash...

Yeah... tried reset.

 

[MvdB]

Could you please post back exactly what happened when you went through these steps:

I would boot in Safe mode, delete graphics drivers, reboot with no tv or vga connection, let Windows 7 re-install...

What happened when you deleted the drivers (to what screen and resolution did it revert)?
Then you reboot, in Safe mode and install newest drivers, what happened then? (again, what was primary screen to and resolution did it revert)?

 

[RockStar21]

Could you please post back exactly what happened when you went through these steps:

I would boot in Safe mode, delete graphics drivers, reboot with no tv or vga connection, let Windows 7 re-install...

What happened when you deleted the drivers (to what screen and resolution did it revert)?
Then you reboot, in Safe mode and install newest drivers, what happened then? (again, what was primary screen to and resolution did it revert)?

I will go through the steps again tomorrow and post in detail what happened. Should I download the latest drivers from nvdia or oem drivers from ASUS?

 

[MvdB]

Could you please post back exactly what happened when you went through these steps:

I would boot in Safe mode, delete graphics drivers, reboot with no tv or vga connection, let Windows 7 re-install...

What happened when you deleted the drivers (to what screen and resolution did it revert)?
Then you reboot, in Safe mode and install newest drivers, what happened then? (again, what was primary screen to and resolution did it revert)?

I will go through the steps again tomorrow and post in detail what happened. Should I download the latest drivers from nvdia or oem drivers from ASUS?

nvidia...

 

[RockStar21]

Ok so here goes... started in safe mode... deleted drivers for NVIDIA G105M and Mobile Intel(R) 4 Series Express Chipset Family... rebooted and display reverted to Default Monitor 800 x 600. Windows automatically installed drivers for Intel(R) 4 Series... restarted to primary display Mobile PC Display 1366 x 768 but no NVIDIA. Rebooted in safe mode... installed latest drivers from NVIDIA... restarted and things were completely messed up... Default Monitor 800 x 600.(guess the latest nvidia drivers are not compatible with this system) I repeated the above procedure this time installing the OEM NVIDIA drivers from the ASUS website... but... back to square one. Everything is working fine again except of course the HDMI output without the VGA attached.

 

[Britton30]

IT could be that ASUS has made their own custom nVIDIA driver too. Some lappie makers do that.:sarc:

 

[TVeblen]

Just a thought:
You've done a lot of work on the laptop side of the equation. I would start working on the TV's settings.

When you connect the TV to the laptop (or any W7 computer) you should get that "beep-boop" sound as Windows discovers new hardware. Most TVs that I am aware of are not plug-and-play devices but they do send a signal on the HDMI cable that computers pick up.

If the TV has more than one HDMI input you could try those. But scroll through all your TV settings to see if there is anything you can play with that controls outputs & inputs or external sources to see if you can get the PC to recognize the TV.

I also recall some issues similar to this one that actually ended up being a bad HDMI cable. Have you explored that possibility?

 

[RockStar21]

Just a thought:
You've done a lot of work on the laptop side of the equation. I would start working on the TV's settings.

When you connect the TV to the laptop (or any W7 computer) you should get that "beep-boop" sound as Windows discovers new hardware. Most TVs that I am aware of are not plug-and-play devices but they do send a signal on the HDMI cable that computers pick up.

If the TV has more than one HDMI input you could try those. But scroll through all your TV settings to see if there is anything you can play with that controls outputs & inputs or external sources to see if you can get the PC to recognize the TV.

I also recall some issues similar to this one that actually ended up being a bad HDMI cable. Have you explored that possibility?

Yeah... I've tried all the HDMI ports on the TV... even tried another TV. Went through the menu, but didn't see anything relevant.

I don't get the "beep-boop" sound.

I only have one HDMI cable at the moment... perhaps I'll borrow one and see if that's the problem.

 

[Gammler]

Hey dude,

Haven't solved your problem yet?
I was having the same problem. What I did to solve it was installing the latest nvidia hdmi driver for win 7 64 bits (my OS). After that, NVIDIA HDMI Out showed not connected, even though with the hdmi cable connected. So, with the HDMI cable connected to the PC and to the TV, I went to Control Panel -> NVIDIA Control Panel -> Display -> Change Resolution and there I noticed that the HDMI Audio output was disabled. I just enabled it and now everything works fine even with the display duplicated.

Maybe it can help ya..