My OpenMoHAA client has crashed, leaving the desktop brightened up. How can I fix this without restarting the computer?

Try one of the following options:

1. Lock and Unlock Your Screen (Windows+L)

Simply pressing Win+L to lock your screen and then logging back in can sometimes reset the brightness to its previous state.

2. Command Line Fix (Windows)

If you have an NVIDIA or AMD GPU, you can try these commands:

For NVIDIA GPUs: Open Command Prompt (cmd.exe) or PowerShell and run:

nvidia-settings -a "DPY-0/RedBrightness=0.0" -a "DPY-0/GreenBrightness=0.0" -a "DPY-0/BlueBrightness=0.0"

(If you have multiple displays, DPY-0 may need to be replaced with the correct display identifier.)
For AMD GPUs: Open the AMD Radeon Software and manually adjust brightness or SDR settings to reset them.

3. Use a Third-Party Tool to Reset Gamma & Brightness

Programs like Gamma Panel or f.lux can help restore modified brightness and gamma settings quickly.

4. Restart the Graphics Driver (Windows)

Press Win + Ctrl + Shift + B to restart the graphics driver without rebooting your PC. Your screen will briefly go black, then reset.

5. Reset Gamma via Xrandr (Linux, Xorg Users)

If you’re using Linux with Xorg, try this command to reset gamma settings:

xrandr --output eDP-1 --gamma 1:1:1

(Replace eDP-1 with the correct display name, which you can find by running xrandr in the terminal.)

6. Changing Display Mode in Windows (Alternative)

If none of the above solutions work, you can manually reset brightness by changing the display mode:

Right-click on your desktop and select Display settings.
Scroll down to Display resolution and change it to a different setting.
Revert it back to your original resolution.

This forces Windows to refresh display settings, which may restore brightness.

I am using a custom map/mod, and I experience glitches that do not occur in the original game. What should I do?

1. Check game file precedences:

As OpenMoHAA has MultiUser Support (on Windows, user game data is stored in APPDATA%\openmohaa), custom files in this directory override existing files in the game installation folder.

|Example| |-| | A custom grenzuebergang_KE.pk3 (placed in the user game data folder) contains a scripts/effects.shader file and it does not declare bh_wood_puff_simple. As a result, bullet impact effect has no texture. However, if grenzuebergang_KE.pk3 is placed in the game installation folder (MOHAA/main or /mainta or /maintt, where the base pak*.pk3 files are located) original files take precedence over custom files as they follow the alphabetical order of file naming. Pak1.pk3 contains the original scripts/effects.shader where the impact effect is declared; therefore, the player does not experience any issue, as the original file is "loaded" after the custom file. |

2. Create a new issue:

If changing the file precedences has no effect on the glitch you discovered, you have probably found a new bug in the OpenMoHAA engine, so please create a new issue for the developers.

I cannot set my screen resolution in the Options/Video menu. How can I change it?

Edit `omconfig.cfg`:

If they do not exist, add the following console variables (cvars) to your omconfig.cfg[^1]

seta r_mode "-1"
seta r_customwidth "1920"
seta r_customheight "1080"

or (alternatively) run the game with command line parameters:

Launch your OpenMoHAA client with the following:

+set r_mode -1 +set r_customwidth 1920 +set r_customheight 1080

Change the width and height accordingly.

Console does not show up in OpenMoHAA. How can I enable it?

1. Check if console is enabled

In the Options -> Advanced menu, make sure that the checkbox is checked (red "X") at the Console. Alternatively, check if the value is equal to 1 for the following cvar in omconfig.cfg[^1]:

seta ui_console "1"

2. Check Console keys cvar

OpenMoHAA introduces a new cvar that stores the keys to open up console. Edit the following cvar in your omconfig.cfg[^1]:

seta cl_consoleKeys "~ ` 0x7e 0x60"

As you see the default variable above, you can add multiple keys (between the quotation marks, divided by spaces) to display/hide the console.

bind ` "toggleconsole" is not to be used anymore.

Footnotes:

[^1]: omconfig.cfg is the OpenMoHAA configuration file that is located in the user game data folder (on Windows, APPDATA%\openmohaa\main or mainta or maintt \configs\omconfig.cfg)