Grand Theft Auto IV Input Not Supported Error

Hi all,

I have looked all over online for a few days now and I figured I'd see if anyone here has had this problem. When I launch GTA IV, after I login to Social Club, my monitor goes completely black and flashes "Input not Support" around my screen. Occasionaly, I can hear the games startup music in the background, but I still can't see anything. In order to get my computer back on my monitor, I have to Ctrl+Alt+Del and then unplug and re-plug in my hdmi cord.

Any help with this problem would be greatly appreciated. I've already sunk 50 hours into this game and would love to keep going, but I'm out of ideas and things to try Thanks for any replies in advance.
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More about grand theft auto input supported error
  1. did you change the resolution? sound like it is trying to use a resolution that is not supported on your monitor.
  2. rgd1101 said:
    did you change the resolution? sound like it is trying to use a resolution that is not supported on your monitor.


    That is what I have been reading, but so far all attempts have failed. I've tried launching it in safemode as well as changing my desktop to 800x600. I've also tried using a commandline.txt file in the GTA IV folder to run it in windowed mode. I've also tried setting resolution in the launch options in steam. I'm all out of ideas on how to change it haha.
  3. mkipp said:
    Hi all,

    I have looked all over online for a few days now and I figured I'd see if anyone here has had this problem. When I launch GTA IV, after I login to Social Club, my monitor goes completely black and flashes "Input not Support" around my screen. Occasionaly, I can hear the games startup music in the background, but I still can't see anything. In order to get my computer back on my monitor, I have to Ctrl+Alt+Del and then unplug and re-plug in my hdmi cord.

    Any help with this problem would be greatly appreciated. I've already sunk 50 hours into this game and would love to keep going, but I'm out of ideas and things to try Thanks for any replies in advance.


    it is just very eazy! lets see da wae to fix it!

    first: copy and paste this to file explorer C:\Users\User\AppData\Local\Rockstar Games\GTA IV

    second: there is settings folder! terminate/delete the settings folder

    third: now you can play GTA 4 but with reset settings, make a new settings but don't add more resolutions again to your graphics settings!

    why you had to delete it? cause your graphic settings gone wrong
    commandline never fix this problem


    LOL FOR 4 YEARS DELAY
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