[NVIDIA] Wrong colors on borders

[ad3ph-spare]

Issue

When I set general:col:active_border or general:col:inactive_border with any of supported formats (0xARGB, rgba(...), or rgb(...)), the actual new colors of the borders do not match the ones that should be visible according to the color value. It seems to me that the actual displayed color is some modification of rgba values that at least ignores blue: I can't set any blue shades.

It doesn't depend on reboot and/or restarting Hyprland; same behavior is observed when setting colors with hyprctl setprop.

Examples

Color set to what should be solid red

Color set to what should be solid green

Color set to what should be solid blue

Color set to what should be solid magenta

ffffffff, ffff00ff, work as expected

Other noticeable issues

My only complaint is low fps on cursor movements when animations are being run or some windows are being opened. This is well-explainable considering the whole NVIDIA situation, and other people have also been having the cursor problems.

Steps to reproduce

I am not exactly sure if it will appear under any actions other that reproducing old gpu situation

System Info

i7-4770, Nvidia Quadro K2000 under nouveau. HP Z230 tower

Debian 13 Trixie upgraded from Debian 12 Bookworm. Previously ran XFCE on Xorg.
While upgrading, the nvidia prop drivers were removed because Trixie's repos dont have the nvidia-tesla-470 drivers, so I had to switch to using nouveau instead.

Hyprland installed after full upgrade using JaKoolIt's Debian-Hyprland script. Current installed version is 0.50.1, although I know that I should only open the issue if I upgraded to the most recent one - I couldn't possibly check because of Debian policies. Also, I looked through the changelog and could not find this issue being directly addressed

> hyprctl version 
Hyprland 0.50.1 built from branch  at commit 4e242d086e20b32951fdc0ebcbfb4d41b5be8dcc dirty ([gha] Nix: update inputs).
Date: Sun Jul 20 04:37:06 2025
Tag: v0.50.1, commits: 6291
built against:
 aquamarine 0.9.2
 hyprlang 0.6.3
 hyprutils 0.8.2
 hyprcursor 0.1.13
 hyprgraphics 0.1.5

no flags were set

> cat ~/.config/hypr/hyprland.conf

# #######################################################################################
# AUTOGENERATED HYPR CONFIG.
# PLEASE USE THE CONFIG PROVIDED IN THE GIT REPO /examples/hypr.conf AND EDIT IT,
# OR EDIT THIS ONE ACCORDING TO THE WIKI INSTRUCTIONS.
# #######################################################################################

autogenerated = 0 # remove this line to remove the warning

# This is an example Hyprland config file.
# Refer to the wiki for more information.
# https://wiki.hyprland.org/Configuring/Configuring-Hyprland/

# Please note not all available settings / options are set here.
# For a full list, see the wiki

# You can split this configuration into multiple files
# Create your files separately and then link them to this file like this:
# source = ~/.config/hypr/myColors.conf


################
### MONITORS ###
################

# See https://wiki.hyprland.org/Configuring/Monitors/
monitor=DVI-I-1,2560x1080,0x0,1


###################
### MY PROGRAMS ###
###################

# See https://wiki.hyprland.org/Configuring/Keywords/

# Set programs that you use
$terminal = kitty
$fileManager = thunar
$menu = rofi -show drun
$browser = firefox

#################
### AUTOSTART ###
#################

# Autostart necessary processes (like notifications daemons, status bars, etc.)
# Or execute your favorite apps at launch like this:

# exec-once = $terminal
# exec-once = nm-applet &
exec-once = hyprpaper
exec-once = dbus-update-activation-environment --systemd WAYLAND_DISPLAY XDG_CURRENT_DESKTOP
exec-once = waybar


exec-once = swaybg -i ~/Pictures/mntn.jpg

#############################
### ENVIRONMENT VARIABLES ###
#############################

# See https://wiki.hyprland.org/Configuring/Environment-variables/

env = XCURSOR_SIZE,24
env = HYPRCURSOR_SIZE,24


#####################
### LOOK AND FEEL ###
#####################

# Refer to https://wiki.hyprland.org/Configuring/Variables/

# https://wiki.hyprland.org/Configuring/Variables/#general
general { 
    gaps_in = 5
    gaps_out = 20

    border_size = 3

    # https://wiki.hyprland.org/Configuring/Variables/#variable-types for info about colors
    col.active_border = rgba(33ccffee) rgba(ffaa00ee) rgba(aa00ffee) 30deg
    col.inactive_border = rgba(ffffffaa)
    # Set to true enable resizing windows by clicking and dragging on borders and gaps
    resize_on_border = false 

    # Please see https://wiki.hyprland.org/Configuring/Tearing/ before you turn this on
    allow_tearing = false

    layout = dwindle
}

# https://wiki.hyprland.org/Configuring/Variables/#decoration
decoration {
    rounding = 10

    # Change transparency of focused and unfocused windows
    active_opacity = 1.0
    inactive_opacity = 1.0

    shadow {
        enabled = true
        range = 4
        render_power = 3
        color = rgba(1a1a1aee)
    }
    # https://wiki.hyprland.org/Configuring/Variables/#blur
    blur {
        enabled = true
        size = 3
        passes = 1
        
        vibrancy = 0.1696
    }
}

# https://wiki.hyprland.org/Configuring/Variables/#animations
animations {
    enabled = true

    # Default animations, see https://wiki.hyprland.org/Configuring/Animations/ for more

    bezier = myBezier, 0.05, 0.9, 0.1, 1.05

    animation = windows, 1, 7, myBezier
    animation = windowsOut, 1, 7, default, popin 80%
    animation = border, 1, 10, default
    animation = borderangle, 1, 8, default
    animation = fade, 1, 7, default
    animation = workspaces, 1, 6, default
}

cursor {
    no_hardware_cursors = true
}

# See https://wiki.hyprland.org/Configuring/Dwindle-Layout/ for more
dwindle {
    pseudotile = true # Master switch for pseudotiling. Enabling is bound to mainMod + P in the keybinds section below
    preserve_split = true # You probably want this
}

# See https://wiki.hyprland.org/Configuring/Master-Layout/ for more
master {
    new_status = master
}

# https://wiki.hyprland.org/Configuring/Variables/#misc
misc { 
    force_default_wallpaper = -1 # Set to 0 or 1 to disable the anime mascot wallpapers
    disable_hyprland_logo = false # If true disables the random hyprland logo / anime girl background. :(
}


#############
### INPUT ###
#############

# https://wiki.hyprland.org/Configuring/Variables/#input
input {
    kb_layout = us, ru
    kb_variant =
    kb_model =
    kb_options = grp:caps_toggle
    kb_rules =

    follow_mouse = 1
    repeat_delay = 180
    repeat_rate = 30

    sensitivity = 0.2 # -1.0 - 1.0, 0 means no modification.
    force_no_accel = 0
    touchpad {
        natural_scroll = true
    }
}

# https://wiki.hyprland.org/Configuring/Variables/#gestures
gestures {
    workspace_swipe = false
}

# Example per-device config
# See https://wiki.hyprland.org/Configuring/Keywords/#per-device-input-configs for more
device {
    name = epic-mouse-v1
    sensitivity = -0.5
}


####################
### KEYBINDINGSS ###
####################

# See https://wiki.hyprland.org/Configuring/Keywords/
$mainMod = SUPER # Sets "Windows" key as main modifier

# Example binds, see https://wiki.hyprland.org/Configuring/Binds/ for more
bind = $mainMod, T, exec, $terminal
bind = $mainMod, C, killactive,
bind = ALT, F4, killactive,
bind = $mainMod, L, exit,
bind = $mainMod, E, exec, $fileManager
bind = $mainMod, V, togglefloating,
bind = $mainMod, R, exec, $menu
bind = $mainMod, P, pseudo, # dwindle
bind = $mainMod, J, togglesplit, # dwindle
bind = $mainMod, F, exec, $browser
bind = $mainMod, M, exec, /home/artem/Telegram
bind = $mainMod, F11, fullscreen
bind = $mainMod SHIFT, L, exec, systemctl suspend

# Move focus with mainMod + arrow keys
bind = $mainMod, left, movefocus, l
bind = $mainMod, right, movefocus, r
bind = $mainMod, up, movefocus, u
bind = $mainMod, down, movefocus, d
bind = ALT, Tab, cyclenext
bind = ALT, Tab, bringactivetotop

# Switch workspaces with mainMod + [0-9]
bind = $mainMod, 1, workspace, 1
bind = $mainMod, 2, workspace, 2
bind = $mainMod, 3, workspace, 3
bind = $mainMod, 4, workspace, 4
bind = $mainMod, 5, workspace, 5
bind = $mainMod, 6, workspace, 6
bind = $mainMod, 7, workspace, 7
bind = $mainMod, 8, workspace, 8
bind = $mainMod, 9, workspace, 9
bind = $mainMod, 0, workspace, 10

bind = $mainMod, B, exec, pkill waybar || waybar

# Move active window to a workspace with mainMod + SHIFT + [0-9]
bind = $mainMod SHIFT, 1, movetoworkspace, 1
bind = $mainMod SHIFT, 2, movetoworkspace, 2
bind = $mainMod SHIFT, 3, movetoworkspace, 3
bind = $mainMod SHIFT, 4, movetoworkspace, 4
bind = $mainMod SHIFT, 5, movetoworkspace, 5
bind = $mainMod SHIFT, 6, movetoworkspace, 6
bind = $mainMod SHIFT, 7, movetoworkspace, 7
bind = $mainMod SHIFT, 8, movetoworkspace, 8
bind = $mainMod SHIFT, 9, movetoworkspace, 9
bind = $mainMod SHIFT, 0, movetoworkspace, 10

# Example special workspace (scratchpad)
bind = $mainMod, S, togglespecialworkspace, magic
# bind = $mainMod SHIFT, S, movetoworkspace, special:magic

# Scroll through existing workspaces with mainMod + scroll
bind = $mainMod, mouse_down, workspace, e+1
bind = $mainMod, mouse_up, workspace, e-1

# Move/resize windows with mainMod + LMB/RMB and dragging
bindm = $mainMod, mouse:272, movewindow
bindm = $mainMod, mouse:273, resizewindow

binde = $mainMod SHIFT, left, resizeactive, -30 0
binde = $mainMod SHIFT, right, resizeactive, 30 0
binde = $mainMod SHIFT, up, resizeactive, 0 -30
binde = $mainMod SHIFT, down, resizeactive,  0 30


$audioctlcommand = pactl set-sink-volume @DEFAULT_SINK@
$brightnesscommand = brightnessctl set
# Fn keys
#bind = , XF86AudioRaiseVolume, exec, $audioctlcommand +5%
binde = , XF86AudioRaiseVolume, exec, pactl set-sink-volume @DEFAULT_SINK@ +5%
binde = , XF86AudioLowerVolume, exec, $audioctlcommand -5%
bind = , XF86AudioMute, exec, pactl set-sink-volume @DEFAULT_SINK@ toggle


# Screenshots
$capture_save = grim -g "$(slurp)" - | wl-copy && wl-paste > ~/Pictures/Screenshots/Screenshot-$(date +%F_%T).png 

bind = $mainMod SHIFT, S, exec, $capture_save

##############################
### WINDOWS AND WORKSPACES ###
##############################

# See https://wiki.hyprland.org/Configuring/Window-Rules/ for more
# See https://wiki.hyprland.org/Configuring/Workspace-Rules/ for workspace rules

# Example windowrule v1
# windowrule = float, ^(kitty)$

# Example windowrule v2
# windowrulev2 = float,class:^(kitty)$,title:^(kitty)$

windowrulev2 = suppressevent maximize, class:.* # You'll probably like this.

Thank you for your time!

[ad3ph-spare]

I have never managed to find any reason or solution, abandoned using Hyprland and switched to XFCE lol