I have a asus strix 980 ti oc edition, I just bought a acer x34. The card was working fine until I opened asus' gpu tweak II. When ever I open the program, it black screens permanently. It has done that to 2 of 3 display ports. The only "fix" that I have found is to switch display ports. Gpu driver is up to date. Any help would be greatly appreciated thanks.
go into run > appwiz.cpl > remove all nvidia programs.
download this and run it. http://www.guru3d.com/files-details/display-driver-uninstaller-download.html
which will uninstall your current gpu drivers and have your computer restart and go through a bit of a process here.
once you've fully uninstalled your drivers, launch devmgmt.msc from the run prompt, and check your display adapter drivers to ensure that it was successful.
go into your program files and your file explorer and do a search for nvidia. it will be something like c:\program files\nvidia delete all folders / contents of folders with "NVIDIA" in the name.
go into msconfig and ensure that it's not on your startup programs or services. Uncheck them.
Restart the computer.
go into regedit and search for nvidia. or you can check manually in hkcu or hklm, or just through the specific user which is located in hklm:\software\microsoft\windows nt\current version\profile list* then by clicking on the different keys you will see the value (which is a directory) c:\users*username* and the name of the reg key has a few numbers at the end, that's your hkey user subdirectory. which is going to be hkey_users \ then a set of encrypted keys like S-1-6-23-1917785643-1916246445-3147766602-1001 and every user that is on your pc cached locally will have a value.
The profile path is the value you're looking for, and if it matches your user, then the last couple characters of the key name will be your guide into Hkey_users.
look for nvidia and delete it. If you aren't very experienced in the registry, don't play with it. Especially if you aren't comfortable. You need to use a certain level of discretion when using it with the file names and the directories.
Finally the last step is to re-install your drivers. If this doesn't work, I'm not thinking it has anything to do with the software. You could try putting it into another system-unit to reproduce the problem, to ensure that it's the hardware. If you delete a key for a program, that you know is not there anymore, then it's pretty much safe to delete it.
Another trick is using F3 to repeat the search process through the registry window. I know it's basic, but it's vital to actually using the search function in the registry.
Thank you for the information I will try this soon. I am not that experienced in any of this.
Don't forget to try even the most basic things. Try opening up your pc, cleaning it out, reseating your pcie gpu and ensuring everything on your board is properly seated.
Then swap out your display port cable.
If the driver re-install doesn't work, do a clean boot. Going into run > msconfig, and disable all startup items and startup services.
Do a malwarebytes scan. If you want, you can try checking manually by going into start > run > %appdata% > and look for any directory here that looks either cryptic (usually malware), or that is unknown to you. If you don't know it, google it. "Is it safe? "folder / program name".
There's c:\users*your username*\appdata\local and appdata\roaming
Also same goes for %programdata%
hklm:\software\microsoft\windows\currentversion\ and then the keys run / runonce. look for any peculiar values in there.
also don't forget to check the hkcu versions of those values.
Same goes for checking for any running processes by hitting ctrl+shift+esc on your keyboard, and clicking the processes tab.
if you right click the little gray bar there where all the columns are separated by headers like "process name". Then click on command line. It's a bit different on Windows 7, it's basically the same thing, except you click the checkbox on file path instead.
Look for anything peculiar here.
If you find anything strange, navigate to the file path shown and delete it. Ensure that the process has stopped, if not, then kill it.
Appwiz.cpl > look for anything peculiar here. Browse your file explorer, c:\users\ c:\program files\ and your x86 version.