MangoHud

A Vulkan and OpenGL overlay for monitoring FPS, temperatures, CPU/GPU load and more.

Example:

Installation

Build

If you wish to compile MangoHud to keep up to date with any changes - first clone this repository and cd into it:

git clone --recurse-submodules https://github.com/flightlessmango/MangoHud.git
cd MangoHud

To build it, execute:

./build.sh build
./build.sh package

NOTE: If you are running an Ubuntu-based, Arch-based, Fedora-based, or openSUSE-based distro, the build script will automatically detect and prompt you to install missing build dependencies. If you run into any issues with this please report them!

Once done, proceed to the installation.

Install

Source

If you have compiled MangoHud from source, to install it, execute:

./build.sh install

You can then subsequently uninstall MangoHud via the following command

./build.sh uninstall

Pre-packaged binaries

GitHub releases

If you do not wish to compile anything, simply download the file under Releases, extract it, and from within the extracted folder in terminal, execute:

./mangohud-setup.sh install

Arch-based distributions

If you are using an Arch-based distribution, install mangohud and lib32-mangohud with your favourite AUR helper. mangohud-git and lib32-mangohud-git are also available on the AUR if you want the up-to-date version of MangoHud.

Debian 11 (Bullseye)

If you are using Debian 11 or later, to install the MangoHud package, execute:

sudo apt install mangohud

Optionally, if you also need MangoHud for 32-bit applications, execute:

sudo apt install mangohud:i386

Fedora

If you are using Fedora, to install the MangoHud package, execute:

sudo dnf install mangohud

Solus

If you are using Solus, to install MangoHud simply execute:

sudo eopkg it mangohud

Flatpak

If you are using Flatpaks, you will have to add the Flathub repository for your specific distribution, and then, to install it, execute:

For Steam flatpak

flatpak install com.valvesoftware.Steam.Utility.MangoHud

To enable MangoHud for all Steam games:

flatpak override --user --env=MANGOHUD=1 com.valvesoftware.Steam

Normal usage

To enable the MangoHud overlay layer for Vulkan and OpenGL, run :

mangohud /path/to/app

For Lutris games, go to the System options in Lutris (make sure that advanced options are enabled) and add this to the Command prefix setting:

mangohud

For Steam games, you can add this as a launch option:

mangohud %command%

Or alternatively, add MANGOHUD=1 to your shell profile (Vulkan only).

OpenGL

OpenGL games may also need dlsym hooking. Add --dlsym or MANGOHUD_DLSYM=1 env var to your command like mangohud --dlsym %command% for Steam.

Some Linux native OpenGL games overrides LD_PRELOAD and stops MangoHud from working. You can sometimes fix this by editing LD_PRELOAD in the start script LD_PRELOAD=/path/to/mangohud/lib/

Hud configuration

MangoHud comes with a config file which can be used to set configuration options globally or per application. The priorities of different config files are:

1. /path/to/application/dir/MangoHud.conf
2. $HOME/.config/MangoHud/{application_name}.conf
3. $HOME/.config/MangoHud/MangoHud.conf

You can find an example config in /usr/share/doc/mangohud

GOverlay is a GUI application that can be used to manage the config

---

MANGOHUD_CONFIG and MANGOHUD_CONFIGFILE environment variables

You can also customize the hud by using the MANGOHUD_CONFIG environment variable while separating different options with a comma. This takes priority over any config file.

You can also specify configuration file with MANGOHUD_CONFIGFILE=/path/to/config for applications whose names are hard to guess (java, python etc).

A partial list of parameters are below. See the config file for a complete list. Parameters that are enabled by default have to be explicitly disabled. These (currently) are fps, frame_timing, cpu_stats (cpu load), gpu_stats (gpu load).

Variable	Description
cpu_temp gpu_temp	Displays current CPU/GPU temperature
core_load	Displays load & frequency per core
gpu_core_clock gpu_mem_clock	Displays GPU core/memory frequency
ram vram	Displays system RAM/VRAM usage
swap	Displays swap space usage next to system RAM usage
full	Enables most of the toggleable parameters (currently excludes histogram)
font_size=	Customizeable font size (default=24)
font_size_text=	Customizeable font size for other text like media metadata (default=24)
font_scale=	Set global font scale (default=1.0)
font_file	Change default font (set location to .TTF/.OTF file )
font_file_text	Change text font. Otherwise font_file is used
font_glyph_ranges	Specify extra font glyph ranges, comma separated: korean, chinese, chinese_simplified, japanese, cyrillic, thai, vietnamese, latin_ext_a, latin_ext_b. If you experience crashes or text is just squares, reduce font size or glyph ranges.
no_small_font	Use primary font size for smaller text like units
width= height=	Customizeable hud dimensions (in pixels)
position=	Location of the hud: top-left (default), top-right, middle-left, middle-right, bottom-left, bottom-right, top-center
offset_x offset_y	Hud position offsets
no_display	Hide the hud by default
toggle_hud= toggle_logging=	Modifiable toggle hotkeys. Default are Shift_R+F12 and Shift_L+F2, respectively.
reload_cfg=	Change keybind for reloading the config. Default = Shift_L+F4
time time_format=%T	Displays local time. See std::put_time for formatting help. NOTE: Sometimes apps (or AMDVLK (should be fixed in latest)) may set TZ (timezone) environment variable to UTC/GMT
gpu_color cpu_color vram_color ram_color io_color engine_color frametime_color background_color text_color media_player_color	Change default colors: gpu_color=RRGGBB
alpha	Set the opacity of all text and frametime graph 0.0-1.0
background_alpha	Set the opacity of the background 0.0-1.0
read_cfg	Add to MANGOHUD_CONFIG as first parameter to also load config file. Otherwise only MANGOHUD_CONFIG parameters are used.
output_folder	Set location of the output files (Required for logging)
log_duration	Set amount of time the logging will run for (in seconds)
vsync gl_vsync	Set vsync for OpenGL or Vulkan
media_player	Show media player metadata
media_player_name	Force media player DBus service name without the org.mpris.MediaPlayer2 part, like spotify, vlc, audacious or cantata. If none is set, MangoHud tries to switch between currently playing players.
media_player_order	Media player metadata field order. Defaults to title,artist,album.
font_scale_media_player	Change size of media player text relative to font_size
io_read io_write	Show non-cached IO read/write, in MiB/s
pci_dev	Select GPU device in multi-gpu setups
version	Shows current mangohud version
fps_limit	Limit the apps framerate. Comma-separated list of one or more FPS values. 0 means unlimited.
toggle_fps_limit	Cycle between FPS limits. Defaults to Shift_L+F1.
arch	Show if the application is 32 or 64 bit
histogram	Change fps graph to histogram
cpu_text gpu_text	Override CPU and GPU text
log_interval	Change the default log interval, 100 is default
vulkan_driver	Displays used vulkan driver, radv/amdgpu-pro/amdvlk
gpu_name	Displays GPU name from pci.ids
cpu_power gpu_power	Display CPU/GPU draw in watts
engine_version	Display OpenGL or vulkan and vulkan-based render engine's version
permit_upload	Allow uploading of logs to Flightlessmango.com
upload_log	Change keybind for uploading log
benchmark_percentiles	Configure which framerate percentiles are shown in the logging summary. Default is 97,AVG,1,0.1
wine	Shows current Wine or Proton version in use
wine_color	Change color of the wine/proton text
cpu_mhz	Shows the CPUs current MHz
gpu_load_change	Changes the color of the GPU load depending on load
gpu_load_color	Set the colors for the gpu load change low,medium and high. e.g gpu_load_color=0000FF,00FFFF,FF00FF
gpu_load_value	Set the values for medium and high load e.g gpu_load_value=50,90
cpu_load_change	Changes the color of the CPU load depending on load
cpu_load_color	Set the colors for the gpu load change low,medium and high. e.g cpu_load_color=0000FF,00FFFF,FF00FF
cpu_load_value	Set the values for medium and high load e.g cpu_load_value=50,90
core_load_change	Changes the colors of cpu core loads, uses the same data from cpu_load_value and cpu_load_change
cellpadding_y	Set the vertical cellpadding, default is -0.085
frametime	Display frametime next to fps text
table_columns	Set the number of table columns for ImGui, defaults to 3
blacklist	Add a program to the blacklist. e.g blacklist=vkcube,WatchDogs2.exe
resolution	Display the current resolution
show_fps_limit	Display the current fps limit
custom_text_center	Display a custom text centered useful for a header e.g custom_text_center=FlightLessMango Benchmarks
custom_text	Display a custom text e.g custom_text=Fsync enabled
round_corners	Change the amount of roundness of the corners have e.g round_corners=10.0
vkbasalt	Shows if vkbasalt is on
gamemode	Shows if gamemode is on
battery	Display current battery percent and energy consumption
battery_icon	Display battery icon instead of percent
battery_color	Change the BATT text color
Example: MANGOHUD_CONFIG=cpu_temp,gpu_temp,position=top-right,height=500,font_size=32
Because comma is also used as option delimiter and needs to be escaped for values with a backslash, you can use + like MANGOHUD_CONFIG=fps_limit=60+30+0 instead.

Note: Width and Height are set automatically based on the font_size, but can be overridden.

Note: RAPL is currently used for Intel CPUs to show power draw with cpu_power which may be unreadable for non-root users due to vulnerability. The corresponding energy_uj file has to be readable by corresponding user, e.g. by running chmod o+r /sys/class/powercap/intel-rapl\:0/energy_uj as root, else the power shown will be 0 W, though having the file readable may potentially be a security vulnerability persisting until system reboots.

Vsync

OpenGL Vsync

• -1 = Adaptive sync
• 0 = Off
• 1 = On
• n = Sync to refresh rate / n.

Vulkan Vsync

• 0 = Adaptive VSync (FIFO_RELAXED_KHR)
• 1 = Off (IMMEDIATE_KHR)
• 2 = Mailbox (VSync with uncapped FPS) (MAILBOX_KHR)
• 3 = On (FIFO_KHR)

All vulkan vsync options might not be supported on your device, you can check what your device supports here vulkan.gpuinfo.org

Keybindings

• Shift_L+F2 : Toggle Logging
• Shift_L+F4 : Reload Config
• Shift_R+F12: Toggle Hud

Workarounds

Options starting with "gl_*" are for OpenGL.

• gl_size_query = viewport : Specify what to use for getting display size. Options are "viewport", "scissorbox" or disabled. Defaults to using glXQueryDrawable.
• gl_bind_framebuffer = 0..N : (Re)bind given framebuffer before MangoHud gets drawn. Helps with Crusader Kings III.
• gl_dont_flip = 1 : Don't swap origin if using GL_UPPER_LEFT. Helps with Ryujinx.

MangoHud FPS logging

You must set a valid path for output_folder in your configuration to store logs in.

When you toggle logging (using the keybind Shift_L+F2), a file is created with the game name plus a date & timestamp in your output_folder.

Log files can be uploaded to Flightlessmango.com to create graphs automatically.

You can share the created page with others, just link it.

Multiple log files

It's possible to upload multiple files when using Flightlessmango.com. You can rename them to your preferred names and upload them in a batch. These filenames will be used as the legend in the graph.

Log uploading walkthrough