Nvidia GeForce 8400M GT not found after Windows 7 64bit install

Right-click the link for the INF file and choose "Save Link As" and save it somewhere. After that, rename it and remove ".txt" so that all that's left is "NVDM.INF".


When I saved the link it i called it NVDM and saved it to desktop, when i looked, it saved as NVDM.INF already with no .txt


Two Cables, I have to leave now to pick up my mum from work, will be back in an hour or so. Thank you for your help so far, I will be back on here as soon as I am back so if you find any more info or ideas then plz post them.

Regards.

conorgreen said:

So can I copy what comes up when i click download modded INF and paste it into the file NVDM that would appear in the 301.40 extracted folder like before and do the same for the display.driver nvdm file.

No because that's the .INF for 307.22.

So do this:

1. Go here: LaptopVideo2Go: Drivers
2. Download the driver and extract it somewhere (it doesn't matter where)
3. Right-click the INF link and choose Save Link As
4. Save it somewhere, it doesn't matter where as long as you know where it is
5. Rename it and delete ".txt" off the end so all that's left is "NVDM.INF". Say "Yes" to the prompt Windows will give you asking if you're sure about this.
6. Copy this folder to both of those folders I mentioned before
7. Run setup.exe

Alternatively to step #2, you can just left-click the INF link, press Ctrl+A for "Select All", then you can copy this text. After that, you can open the NVDM.INF file in the first folder (out of the 2 I mentioned) and press Ctrl+A for Select All and then you can paste what you had copied. After this, you'd go into the other folder (the Display.Driver folder) and do the same thing: open the NVDM.INF file, do Select All and then paste. So, do whichever way seems easier to you.

conorgreen said:

Right-click the link for the INF file and choose "Save Link As" and save it somewhere. After that, rename it and remove ".txt" so that all that's left is "NVDM.INF".


When I saved the link it i called it NVDM and saved it to desktop, when i looked, it saved as NVDM.INF already with no .txt


Two Cables, I have to leave now to pick up my mum from work, will be back in an hour or so. Thank you for your help so far, I will be back on here as soon as I am back so if you find any more info or ideas then plz post them.

Regards.

Oh, you need to change a Windows setting:

1. Open the Start Menu
2. Type folder options and press Enter
3. Switch to the "View" tab
4. Don't scroll. Instead, look at the bottom of what you can see already for "Hide extensions for known file types". Disable this (remove the check mark).
5. Click OK

You should see the ".txt" extension now and this will enable you to remove it. :)

Right I think we are getting somewhere. I did the folder options thing and the unstable message thing came up etc etc and followed your instructions.

I did all the instructions with a fresh download of driver 301.40 and extracted it. I then copied the relevant saved link INF thing to the Display.Driver folder and overwrite the original NVDM.INF file. I ran setup before i did this and no INF file appeared in the base folder, so i copied the modded INF file into the base folder and re ran the setup.

This time an error message came up sayuing required files missing or something. So Im going to get rid of 301.40 and try a more recent driver and do the steps again - hopefully a INF file appears with a newer driver.

The most recent driver with the modded INF available which is WHQL certified is 302.77 so will try with that driver.

Will post results ASAP

Quick question, does it matter if i install a recent or old driver? would it auto update anyway once its fully detected again etc?. I only need the driver to be able to install directx9

The driver and INF file have to match. So, do this:

1. Go here for 302.77: LaptopVideo2Go: Drivers
2. Download the driver and extract it somewhere (it doesn't matter where)
3. Right-click the INF link on that page for 302.77 and choose Save Link As
4. Save it somewhere, it doesn't matter where as long as you know where it is
5. Rename it and delete ".txt" off the end so all that's left is "NVDM.INF". Say "Yes" to the prompt Windows will give you asking if you're sure about this.
6. Copy this folder to both of those folders I mentioned before
7. Run setup.exe

It doesn't have to be 302.77. It can be any version just as long as you use the INF file that goes with the driver version you download from LaptopVideo2Go.

Success!

I downloaded and extracted 302.77 and the download self-extracted to my downloads folder.

I followed all the steps as you have put so concisely above and then ran the setup, it installed everything I needed and now device manager shows my graphics card as it should and has replaced the VGA adapter as was shown before.

Thank you SO SO much for your help Two Cables, I know it took a while but we got there, and now the solution should only take around 5 minutes for any other people in the same predicament.

conorgreen said:

Success!

I downloaded and extracted 302.77 and the download self-extracted to my downloads folder.

I followed all the steps as you have put so concisely above and then ran the setup, it installed everything I needed and now device manager shows my graphics card as it should and has replaced the VGA adapter as was shown before.

Thank you SO SO much for your help Two Cables, I know it took a while but we got there, and now the solution should only take around 5 minutes for any other people in the same predicament.

Oh dude, I just felt a few goosebumps. :) You're very welcome.

I knew we could do it. I think the problem initially was a little bit of miscommunication on my part, so I had to kind of work my way through that to clear it all up. hehe So, I apologize for that, but man: this is a good feeling!

I had the same feeling when it started installing, but didnt want to jinx it so waited til after the reboot to post haha.

once the driver is extracted it literally just takes the modded INF files to be put in the specific folders then it sorts itself out somehow.

I think without that website, it would have been ALOT more lengthy lol.

conorgreen said:

I had the same feeling when it started installing, but didnt want to jinx it so waited til after the reboot to post haha.

once the driver is extracted it literally just takes the modded INF files to be put in the specific folders then it sorts itself out somehow.

I think without that website, it would have been ALOT more lengthy lol.

The reason it works is the INF files contain your GPU's identifiers and the installer searches the INF for those identifiers (it checks what you have and then it looks in the INF for it). So if it's there, then it goes "His GPU is in the INF file, so it's compatible. Therefore, I'll go ahead and allow the installation to continue". Otherwise, it goes "Hey wait. It's not in the INF file. That means he doesn't have compatible hardware. Therefore, I can't allow the installation to continue."

So you see, the modified INF file lists your GPU (among all of the other compatible GPUs as well) and the unmodified INF file doesn't. I think it's due to some type of special proprietary Sony GPU that NVIDIA made especially for them or something. Or maybe Sony changed the way it's identified so that only Sony's drivers work. I don't know.

:)

Ahh i see. All that makes sense now in the whole scheme of it all.

Thanks again for your help, I was going down all the wrong avenues before I came on here. Take Care.