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#2055·MangoHud

[Bug]

Author: adavidysCreated May 22, 2026Updated Sep 10, 2026
Labelsbug

Describe the bug

OpenGL performance has been significantly reduced.

Linux distribution

cachyos

MangoHud version

0.8.3-2+

Version check

  • I have tested and can reproduce this on latest git.

GPU

rx 6700xt

GPU driver

Navi 22

MangoHud installation method

sudo pacman -S

Application installation method

sudo pacman -S

Steps to reproduce

write in console

bash
glmark2

me end result is

                              glmark2 Score: 23482

=======================================================

write in console

bash
MANGOHUD_CONFIG="cpu_temp,gpu_temp" mangohud glmark2

me end result is

                              glmark2 Score: 7776

=======================================================

Expected behavior

performance improvement program similar to such tests

Logs and terminal output

bash
~
❯ glmark2
=======================================================
    glmark2 2023.01
=======================================================
    OpenGL Information
    GL_VENDOR:      AMD
    GL_RENDERER:    AMD Radeon RX 6700 XT (radeonsi, navi22, ACO, DRM 3.64, 7.0.9-1-cachyos)
    GL_VERSION:     4.6 (Compatibility Profile) Mesa 26.1.1-arch2.1
    Surface Config: buf=32 r=8 g=8 b=8 a=8 depth=24 stencil=0 samples=0
    Surface Size:   800x600 windowed
=======================================================
[build] use-vbo=false: FPS: 15502 FrameTime: 0.065 ms
[build] use-vbo=true: FPS: 30340 FrameTime: 0.033 ms
[texture] texture-filter=nearest: FPS: 28729 FrameTime: 0.035 ms
[texture] texture-filter=linear: FPS: 28755 FrameTime: 0.035 ms
[texture] texture-filter=mipmap: FPS: 28327 FrameTime: 0.035 ms
[shading] shading=gouraud: FPS: 29881 FrameTime: 0.033 ms
[shading] shading=blinn-phong-inf: FPS: 29557 FrameTime: 0.034 ms
[shading] shading=phong: FPS: 29863 FrameTime: 0.033 ms
[shading] shading=cel: FPS: 30491 FrameTime: 0.033 ms
[bump] bump-render=high-poly: FPS: 29473 FrameTime: 0.034 ms
[bump] bump-render=normals: FPS: 29382 FrameTime: 0.034 ms
[bump] bump-render=height: FPS: 29129 FrameTime: 0.034 ms
[effect2d] kernel=0,1,0;1,-4,1;0,1,0;: FPS: 31434 FrameTime: 0.032 ms
[effect2d] kernel=1,1,1,1,1;1,1,1,1,1;1,1,1,1,1;: FPS: 24460 FrameTime: 0.041 ms
[pulsar] light=false:quads=5:texture=false: FPS: 27673 FrameTime: 0.036 ms
[desktop] blur-radius=5:effect=blur:passes=1:separable=true:windows=4: FPS: 15162 FrameTime: 0.066 ms
[desktop] effect=shadow:windows=4: FPS: 16218 FrameTime: 0.062 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 2471 FrameTime: 0.405 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=subdata: FPS: 3277 FrameTime: 0.305 ms
[buffer] columns=200:interleave=true:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 3362 FrameTime: 0.297 ms
[ideas] speed=duration: FPS: 12915 FrameTime: 0.077 ms
[jellyfish] <default>: FPS: 24128 FrameTime: 0.041 ms
[terrain] <default>: FPS: 4686 FrameTime: 0.213 ms
[shadow] <default>: FPS: 17563 FrameTime: 0.057 ms
[refract] <default>: FPS: 9349 FrameTime: 0.107 ms
[conditionals] fragment-steps=0:vertex-steps=0: FPS: 30294 FrameTime: 0.033 ms
[conditionals] fragment-steps=5:vertex-steps=0: FPS: 30393 FrameTime: 0.033 ms
[conditionals] fragment-steps=0:vertex-steps=5: FPS: 30211 FrameTime: 0.033 ms
[function] fragment-complexity=low:fragment-steps=5: FPS: 30466 FrameTime: 0.033 ms
[function] fragment-complexity=medium:fragment-steps=5: FPS: 30139 FrameTime: 0.033 ms
[loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: 30519 FrameTime: 0.033 ms
[loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: 30439 FrameTime: 0.033 ms
[loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: 30373 FrameTime: 0.033 ms
=======================================================
                                  glmark2 Score: 23482 
=======================================================

~ 5m 30s
❯ MANGOHUD_CONFIG="cpu_temp,gpu_temp" mangohud glmark2
=======================================================
    glmark2 2023.01
=======================================================
    OpenGL Information
    GL_VENDOR:      AMD
    GL_RENDERER:    AMD Radeon RX 6700 XT (radeonsi, navi22, ACO, DRM 3.64, 7.0.9-1-cachyos)
    GL_VERSION:     4.6 (Compatibility Profile) Mesa 26.1.1-arch2.1
    Surface Config: buf=32 r=8 g=8 b=8 a=8 depth=24 stencil=0 samples=0
    Surface Size:   800x600 windowed
=======================================================
[build] use-vbo=false:[2026-05-22 14:04:52.383] [MANGOHUD] [info] [cpu.cpp:636] hwmon: using input: /sys/class/hwmon/hwmon2/temp1_input
 FPS: 6953 FrameTime: 0.144 ms
[build] use-vbo=true: FPS: 8906 FrameTime: 0.112 ms
[texture] texture-filter=nearest: FPS: 8774 FrameTime: 0.114 ms
[texture] texture-filter=linear: FPS: 8759 FrameTime: 0.114 ms
[texture] texture-filter=mipmap: FPS: 8773 FrameTime: 0.114 ms
[shading] shading=gouraud: FPS: 8867 FrameTime: 0.113 ms
[shading] shading=blinn-phong-inf: FPS: 8896 FrameTime: 0.112 ms
[shading] shading=phong: FPS: 8848 FrameTime: 0.113 ms
[shading] shading=cel: FPS: 8849 FrameTime: 0.113 ms
[bump] bump-render=high-poly: FPS: 8824 FrameTime: 0.113 ms
[bump] bump-render=normals: FPS: 8719 FrameTime: 0.115 ms
[bump] bump-render=height: FPS: 8725 FrameTime: 0.115 ms
[effect2d] kernel=0,1,0;1,-4,1;0,1,0;: FPS: 9010 FrameTime: 0.111 ms
[effect2d] kernel=1,1,1,1,1;1,1,1,1,1;1,1,1,1,1;: FPS: 8966 FrameTime: 0.112 ms
[pulsar] light=false:quads=5:texture=false: FPS: 8486 FrameTime: 0.118 ms
[desktop] blur-radius=5:effect=blur:passes=1:separable=true:windows=4: FPS: 6960 FrameTime: 0.144 ms
[desktop] effect=shadow:windows=4: FPS: 7074 FrameTime: 0.141 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 1950 FrameTime: 0.513 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=subdata: FPS: 2559 FrameTime: 0.391 ms
[buffer] columns=200:interleave=true:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 2591 FrameTime: 0.386 ms
[ideas] speed=duration: FPS: 7621 FrameTime: 0.131 ms
[jellyfish] <default>: FPS: 8217 FrameTime: 0.122 ms
[terrain] <default>: FPS: 4654 FrameTime: 0.215 ms
[shadow] <default>: FPS: 7196 FrameTime: 0.139 ms
[refract] <default>: FPS: 6553 FrameTime: 0.153 ms
[conditionals] fragment-steps=0:vertex-steps=0: FPS: 8886 FrameTime: 0.113 ms
[conditionals] fragment-steps=5:vertex-steps=0: FPS: 8873 FrameTime: 0.113 ms
[conditionals] fragment-steps=0:vertex-steps=5: FPS: 8873 FrameTime: 0.113 ms
[function] fragment-complexity=low:fragment-steps=5: FPS: 8865 FrameTime: 0.113 ms
[function] fragment-complexity=medium:fragment-steps=5: FPS: 8884 FrameTime: 0.113 ms
[loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: 8860 FrameTime: 0.113 ms
[loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: 8845 FrameTime: 0.113 ms
[loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: 8845 FrameTime: 0.113 ms
=======================================================
                                  glmark2 Score: 7776 
=======================================================

~ 5m 30s
❯ mangohud --version
0.8.3-2+

Screenshots

No response

Additional context

Only btop and glmark were launched

Source: flightlessmango/MangoHud

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