Home » , , » Fallout 4 Tweaks & Fixes Guide (Unlock Frame Rate, Change FOV, Skip Intro Video, Unlock Console, 21:9 Support and Remove Mouse Acceleration + Other Fixes)

Fallout 4 Tweaks & Fixes Guide (Unlock Frame Rate, Change FOV, Skip Intro Video, Unlock Console, 21:9 Support and Remove Mouse Acceleration + Other Fixes)

Describes how to unlock the frame rate in Fallout 4, change the fov, skip the intro video, unlock console, 'add' 21:9 support, remove mouse acceleration (though not for menus currently, though some are reporting unlocking the frame rate fixes this for them, it however doesn't for me), mousee not showing up at the menu/gamepad fix, horizontral and veritcal mouse sensitiviteies being different by default and other tweaks will continue to be added. 

If you have any issues having any of the below tweaks hold once you have made all the changes you want to make to the .ini files, make them read only. 

Unlock Frame Rate

Some such as myself by default are finding the game locked to 30fps, which is bizzare as for other it appears to be locked at 60. The below is how to unlock your frame rate if you have this 30fps cap issue like me, or want to go beyond 60. Note: I wouldn't recommend unlocking it above 60 based on what happend in skyrim when you did (the game became unstable).

To unlock frame rate open Fallout4Pref.ini (located at C:\Users\[name]\Documents\My Games\Fallout4\). Note making a backup isn't neccessary as if you simply delete Fallout4Pref.ini the game will auto generate new one next time it is opened.

Search for the line iPresentInterval=1, and change it to iPresentInterval=0

Next to use vsync got to the nvidia control panel or amd equivelant and apply vysnc here to avoid nasty screen tearing, as the above completely removes any frame rate cap.

[edit: another possibly simpler solution that may work for you is to play in a bordeless window mode.] A thankyou to renegade_sock for posting this last piece of info below.

Remove Mouse Acceleration

Mouse acceleration appears to be on by default in Fallout 4. To remove it we simply do more or less the same thing one did for skyrim. Open Fallout4.ini (C:\Users\[name]\Documents\My Games\Fallout4\).

Scroll down to [Controls], and under this add the below line:
bMouseAcceleration=0

Next open up Fallout4Prefs.ini also in (C:\Users\[name]\Documents\My Games\Fallout4\) and under [Display] add:
bForceIgnoreSmoothness=1

Next go to the second Fallout4Prefs.ini located at wherever you installed steam then open steamapps\common\Fallout 4\Fallout4, and under [Display] once again add:
bForceIgnoreSmoothness=1

Note: this will not remove it from menus or similar, but it removes it from 'within' the game.

How to skip intro when loading game.

Option 1:
To skip the intro every time you laod up Fallout 4, simply got to where you have steam installed, go to steamapps\common\Fallout 4\Data\Video and delete the below file:

GameIntro_V3_B.bk2

Note I would recommend making a backup of this elsewhere as whilst you can simply verify the integrity of your game files it is simply simpler to backup this file (as appossed to the .ini files that the game will auto generate for you if you delete).

Option 2:
First go to C:\Users\[name]\Documents\My Games\Fallout4\ and open up Fallout4.ini and under [General] add:
SIntroSequence=1

Next in the same folder as above open up Fallout4Prefs.ini and once again under [General] add:
SIntroSequence=1

Now you should have no more pesky intro video.

How to change the game fov.

Unlike how you may have changed the fov in Skyrim, Fallout 4 requires a little more work. Not it requies changes to three files, there are two files called Fallout4Prefs.ini in two different locations and one called Fallout4.ini, all three need to be changed as below.

Firstly go to your Fallout4.ini (loacted at C:\Users\[name]\Documents\My Games\Fallout4\) and under [Display] put the below:
fDefaultWorldFOV=XX
fDefault1stPersonFOV=YY

* where XX is you desired fov in third person.
* where YY is the desired fov in first person.
I feel 90 is what will probably be best for most, but tweak away. :)

In Fallout4.ini then in interface replace:
fSafeZoneXWide=64.0
fSafeZoneYWid=36.0
fSafeZoneXWide16x10=64.0
fSafeZoneYWide16x10=36.0
with
fSafeZoneXWide=64.0
fSafeZoneYWid=27.428571428571428571428571428571
fSafeZoneXWide16x10=64.0
fSafeZoneYWide16x10=27.428571428571428571428571428571


Next go to the Fallout4Prefs.ini and do the same directory as above (C:\Users\[name]\Documents\My Games\Fallout4\), under [Display] put:
fDefaultWorldFOV=XX
fDefault1stPersonFOV=YY

* where XX is you desired fov in third person.
* where YY is the desired fov in first person.
I feel 90 is what will probably be best for most, but tweak away. :)


Next go to where you installed steam then open steamapps\common\Fallout 4\Fallout4 (a folder called Fallout 4 is in another folder called Fallout4, how many levels deep does this go ;) ). Next open the Fallout4Prefs.ini here and once again under [Display] add the below:
fDefaultWorldFOV=XX
fDefault1stPersonFOV=YY

* where XX is you desired fov in third person.
* where YY is the desired fov in first person.
I feel 90 is what will probably be best for most, but tweak away. :)

Note, the fov options under [Interface] in Fallout4.ini do not need to be changed for this to work.

Your FOV should now be changed for both first and third person. :)

Finally to change you gun model (and pip body fov) do the below.
If you find your pipboy to be to small, press ~, the type fov XX, where XX is a smallish number if you want it to be larger on screen and vice versa. This will take same trial and error like the fov to get what you like. Next type in refreshini, doing so will make it so your game will not revert to the default 80 fov. Next press ~ save your game and from that point on you should be good to go. :)

Default game fov (80):


Game fov when set to 110:


How to add 21:9 (ultrawide) support.

To have this game run in 21:9 without issue simply open Fallout4Prefs.ini in your documents (C:\Users\[name]\Documents\My Games\Fallout4\), and change the following lines to how they are below:

For borderless windowed mode:
bTopMostWindow=1
bMaximizeWindow=1
bBorderless=1
bFull Screen=0
iSize H=XXXX
iSize W=YYYY

Where XXXX is whatever your vertical resolution is aand YYYY is whatever your horizontal resolution is.

For fullscreen mode:
bTopMostWindow=0
bMaximizeWindow=0
bBorderless=0
bFull Screen=1
iSize H=1080
iSize W=2560

Where XXXX is whatever your vertical resolution is aand YYYY is whatever your horizontal resolution is.

Next do the same for the second Fallout4Prefs.ini located in wherever you insalled steam then steamapps\common\Fallout 4\Fallout 4.

Currently the hud will stretch, but this is a good start and hopefully the hud can be fixed (i'll look into it).

As below in all it's wide glory:



Thankyou John Kimble for taking these two pictures of this ultrawide tweak in action. :)

Unlock Console

Some users have reported that be default there console doesn't work (i.e. pressing ~ does nothing). If it works for you the below isn't necessary. To solve this issue simply in windows go to control panel, then go to languages and set you keyboard layout to US.

Another solution that you can try that I myself can't test as I only have a US keyboard is to try using the '@ key. Thankyou Tharsghaard for this tweak.

This isn't a great long term fix if you don't want the US layout but it works for now.

Mouse not visible at menu.

The most common solution to this is if you have a gamepade plugged in is to unplug it., If you know you don't want to use a gamepad and don't want to unplug your controller everytime you load up the game the below will help. Likewise if you don't have a controller plugged in and have no cursor at the menu the game may think you do so disabling controller as below will help.

To solve this simply open Fallout4Prefs.ini (located in C:\Users\[name]\Documents\My Games\Fallout4\), then scroll down to:
bGamepadEnable=1
and change it to:
bGamepadEnable=0

Thankyou D4rkKr1s for posting this fix in the forums.

Vertical and Horizantral Mouse Movement Different

If you do not like that the horizontal and vertical mouse movement is different in Fallout 4 there is a quick and easy way to fix it. Simply open Fallout4.ini (located in C:\Users\[name]\Documents\My Games\Fallout4\) and change the below:

fMouseHeadingYScale=.021
to
fMouseHeadingYScale=.03738

For other resolutions, simply multiply the number infMouseHeadingYScale, by the ratio of your monitor.

This should work for 16:9 resolutions and I have been unable to test it for ultrawide (21:9) or 4:3 resolutions.

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Credits: Special thanks to Gabi for sharing this guide.