Regression: picom-trans doesn't work as expected with picom-12-rc2

[zen2]

Platform

Gentoo linux amd64

GPU, drivers, and screen setup

nvidia-drivers 555.58.02
3840x1600 144Hz monitor with gsync
name of display: :0
display: :0 screen: 0
direct rendering: Yes
Memory info (GL_NVX_gpu_memory_info):
Dedicated video memory: 12288 MB
Total available memory: 12288 MB
Currently available dedicated video memory: 11345 MB
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2
OpenGL core profile version string: 4.6.0 NVIDIA 555.58.02
OpenGL core profile shading language version string: 4.60 NVIDIA
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.6.0 NVIDIA 555.58.02
OpenGL shading language version string: 4.60 NVIDIA
OpenGL context flags: (none)
OpenGL profile mask: (none)

OpenGL ES profile version string: OpenGL ES 3.2 NVIDIA 555.58.02
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

Environment

xorg server
openbox

picom version

v12-rc2

Diagnostics

**Version:** v11 (should be 12-rc2 !!!)

Extensions:

• Shape: Yes
• RandR: Yes
• Present: Present

Misc:

• Use Overlay: No

• Config file specified: /opt/zentoo/scripts/picom.conf

• Config file used: /opt/zentoo/scripts/picom.conf

Drivers (inaccurate):

NVIDIA

Backend: egl

• Driver vendors:
• EGL: NVIDIA
• GL: NVIDIA Corporation
• GL renderer: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2

Backend: glx

• Driver vendors:
• GLX: NVIDIA Corporation
• GL: NVIDIA Corporation
• GL renderer: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2

Configuration:

Configuration file

log-level = "ERROR";
log-file = "/tmp/picom-error.log";
dbus=false

backend = "glx";

glx-no-stencil = false;
glx-copy-from-front = false;
glx-no-rebind-pixmap = true; 
unredir-if-possible = false;
xrender-sync-fence = true;
use-damage = true;

mark-wmwin-focused = true;
mark-ovredir-focused = true;
use-ewmh-active-win = true;

shadow = true;
shadow-radius = 16;
shadow-offset-x = -16;
shadow-offset-y = -16;
shadow-opacity = 0.8;
shadow-ignore-shaped = true;
detect-rounded-corners = false;

shadow-exclude = [
	"name = 'Notification'",
	"name *= 'picom'",
	"name *= 'Chromium'",
	"name *= 'Chrome'",
	"class_g = 'wbar'",
	"class_g ?= 'Notify-osd'",
	"class_g = 'Firefox' && argb",
	"_GTK_FRAME_EXTENTS@:c",
	"_NET_WM_STATE@:32a *= '_NET_WM_STATE_HIDDEN'"
];

active-opacity = 1;
inactive-opacity = 1;
inactive-opacity-override = false;
detect-client-opacity = true;

opacity-rule = [
    "100:fullscreen",
    "95:class_g = 'URxvt'",
    "95:class_g = 'UXTerm'",
    "95:class_g = 'XTerm'",
    "95:class_g = 'Alacritty'",
    "100:window_type = 'normal'",       # Add a tiny bit of opacity to all normal windows to apply blur
    "95:window_type = 'dialog'",        # Add a tiny bit of opacity to all dialog windows to apply blur
    "95:window_type = 'popup_menu'",    # Add a tiny bit of opacity to all popup_menu windows to apply blur
    "95:window_type = 'notification'"   # Add a tiny bit of opacity to all popup_menu windows to apply blur
];

blur-background = false;

blur-background-exclude = [
    "window_type = 'desktop'",
    "window_type = 'dock'",
    "window_type = 'utility'",
    "window_type = 'notification'",
    "class_g = 'Firefox' && argb",
    "_GTK_FRAME_EXTENTS@:c"
];

fading = true;
fade-delta = 2;
fade-in-step = 0.03;
fade-out-step = 0.03;
fade-exclude = [
];

detect-client-leader = true;

focus-exclude = [
	"class_g = 'Cairo-clock'",
	"class_g ?= 'Steam'"
];

wintypes:
{
	tooltip = { fade = true; shadow = true; focus = false;	};
	normal = { shadow = true; };
	dock = { shadow = false; };
	dnd = { shadow = false; };
	popup_menu = { shadow = true; focus = false; opacity = 0.95; };
	dropdown_menu = { shadow = true; focus = false; opacity = false; };
	above = { shadow = true; };
	splash = { shadow = true; };
	utility = { focus = false; shadow = false; };
	notification = { shadow = true; };
	desktop = { shadow = false };
	menu = { focus = false };
	dialog = { shadow = true; };
    fullscreen = { shadow = false; opacity = 1; };
};

Steps of reproduction

1. picom-trans -c -20

Expected behavior

Active window opacity should decrease of -20.

Current Behavior

Active window opacity doesn't change until moving window or select another window.

[yshui]

Nice catch, should've been fixed now.

[zappolowski]

I ran into the same issue but the patch didn't solve it. I tracked it down to using a new-style rule set of (also just one rule triggers the bug already)

}, {
    match = "focused",
    opacity = 0.9,
}, {
    match = "! focused",
    opacity = 0.6,

added to the current picom.sample.conf.

Full configuration file for easier copy-and-paste

#################################
#             Shadows           #
#################################

# Enabled client-side shadows on windows. Note desktop windows
# (windows with '_NET_WM_WINDOW_TYPE_DESKTOP') never get shadow,
# unless explicitly requested using the wintypes option.
#
# Can be set per-window using rules.
#
# Default: false
shadow = true;

# The blur radius for shadows, in pixels.
#
# Default: 12
shadow-radius = 7;

# The opacity of shadows.
#
# Range: 0.0 - 1.0
# Default: 0.75
# shadow-opacity = .75

# The left offset for shadows, in pixels.
#
# Default: -15
shadow-offset-x = -7;

# The top offset for shadows, in pixels.
#
# Default: -15
shadow-offset-y = -7;

# Hex string color value of shadow. Formatted like "#RRGGBB", e.g. "#C0FFEE".
#
# Default: #000000
# shadow-color = "#000000"

# Crop shadow of a window fully on a particular monitor to that monitor. This is
# currently implemented using the X RandR extension.
#
# Default: false
# crop-shadow-to-monitor = false


#################################
#           Fading              #
#################################

# Fade windows in/out when opening/closing and when opacity changes,
# unless no-fading-openclose is used. Can be set per-window using rules.
#
# Default: false
fading = true;

# Opacity change between steps while fading in. (0.01 - 1.0, defaults to 0.028)
fade-in-step = 0.03;

# Opacity change between steps while fading out. (0.01 - 1.0, defaults to 0.03)
fade-out-step = 0.03;

# The time between steps in fade step, in milliseconds. (> 0, defaults to 10)
# fade-delta = 10

# Do not fade on window open/close.
# no-fading-openclose = false

# Do not fade destroyed ARGB windows with WM frame. Workaround of bugs in Openbox, Fluxbox, etc.
# no-fading-destroyed-argb = false


#################################
#   Transparency / Opacity      #
#################################

# Opacity of window titlebars and borders.
#
# Range: 0.1 - 1.0
# Default: 1.0 (disabled)
frame-opacity = 0.7;

# Use fixed inactive dim value, instead of adjusting according to window opacity.
#
# Default: false
# inactive-dim-fixed = true

#################################
#           Corners             #
#################################

# Sets the radius of rounded window corners. When > 0, the compositor will
# round the corners of windows. Does not interact well with
# `transparent-clipping`.
#
# Default: 0 (disabled)
corner-radius = 0

#################################
#            Blur               #
#################################

# Parameters for background blurring, see BLUR section in the man page for more information.
# blur-method =
# blur-size = 12
#
# blur-deviation = false
#
# blur-strength = 5

# Blur background of semi-transparent / ARGB windows.
# Can be set per-window using rules.
#
# Default: false
# blur-background = false

# Blur background of windows when the window frame is not opaque.
# Implies:
#    blur-background
#
# Default: false
# blur-background-frame = false

# Use fixed blur strength rather than adjusting according to window opacity.
#
# Default: false
# blur-background-fixed = false


# Specify the blur convolution kernel, with the following format:
# example:
#   blur-kern = "5,5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1";
# Can also be a pre-defined kernel, see the man page.
#
# Default: ""
blur-kern = "3x3box";

#################################
#       General Settings        #
#################################

# Enable remote control via D-Bus. See the man page for more details.
#
# Default: false
# dbus = true

# Daemonize process. Fork to background after initialization. Causes issues with certain (badly-written) drivers.
# daemon = false

# Specify the backend to use: `xrender`, `glx`, or `egl`.
#
# Default: "xrender"
backend = "glx"

# Use higher precision during rendering, and apply dither when presenting the
# rendered screen. Reduces banding artifacts, but may cause performance
# degradation. Only works with OpenGL.
dithered-present = false;

# Enable/disable VSync.
#
# Default: false
vsync = true;

# Try to detect windows with rounded corners and don't consider them
# shaped windows. The accuracy is not very high, unfortunately.
#
# Has nothing to do with `corner-radius`.
#
# Default: false
detect-rounded-corners = true;

# Detect '_NET_WM_WINDOW_OPACITY' on client windows, useful for window managers
# not passing '_NET_WM_WINDOW_OPACITY' of client windows to frame windows.
#
# Default: false
detect-client-opacity = true;

# Use EWMH '_NET_ACTIVE_WINDOW' to determine currently focused window,
# rather than listening to 'FocusIn'/'FocusOut' event. May be more accurate,
# provided that the WM supports it.
#
# Default: false
# use-ewmh-active-win = false

# Unredirect all windows if a full-screen opaque window is detected,
# to maximize performance for full-screen windows. Known to cause flickering
# when redirecting/unredirecting windows.
#
# Default: false
# unredir-if-possible = false

# Delay before unredirecting the window, in milliseconds.
#
# Default: 0.
# unredir-if-possible-delay = 0

# Use 'WM_TRANSIENT_FOR' to group windows, and consider windows
# in the same group focused at the same time.
#
# Default: false
detect-transient = true;

# Use 'WM_CLIENT_LEADER' to group windows, and consider windows in the same
# group focused at the same time. This usually means windows from the same application
# will be considered focused or unfocused at the same time.
# 'WM_TRANSIENT_FOR' has higher priority if detect-transient is enabled, too.
#
# Default: false
# detect-client-leader = false

# Use of damage information for rendering. This cause the only the part of the
# screen that has actually changed to be redrawn, instead of the whole screen
# every time. Should improve performance.
#
# Default: false
use-damage = true;

# Use X Sync fence to wait for the completion of rendering of other windows,
# before using their content to render the current screen.
#
# Required for explicit sync drivers, such as nvidia.
#
# Default: false
# xrender-sync-fence = false

# GLX backend: Use specified GLSL fragment shader for rendering window
# contents. Read the man page for a detailed explanation of the interface.
#
# Can be set per-window using rules.
#
# window-shader-fg = "default"

# Force all windows to be painted with blending. Useful if you
# have a `window-shader-fg` that could turn opaque pixels transparent.
#
# Default: false
# force-win-blend = false

# Do not use EWMH to detect fullscreen windows.
# Reverts to checking if a window is fullscreen based only on its size and coordinates.
#
# Default: false
# no-ewmh-fullscreen = false

# Dimming bright windows so their brightness doesn't exceed this set value.
# Brightness of a window is estimated by averaging all pixels in the window,
# so this could comes with a performance hit.
# Setting this to 1.0 disables this behaviour. Requires --use-damage to be disabled.
#
# Default: 1.0 (disabled)
# max-brightness = 1.0

# Make transparent windows clip other windows like non-transparent windows do,
# instead of blending on top of them. e.g. placing a transparent window on top
# of another window will cut a "hole" in that window, and show the desktop background
# underneath.
#
# Default: false
# transparent-clipping = false

# Set the log level. Possible values are:
#  "trace", "debug", "info", "warn", "error"
# in increasing level of importance. Case insensitive.
# If using the "TRACE" log level, it's better to log into a file
# using *--log-file*, since it can generate a huge stream of logs.
#
# Default: "warn"
# log-level = "warn";

# Set the log file.
# If *--log-file* is never specified, logs will be written to stderr.
# Otherwise, logs will to written to the given file, though some of the early
# logs might still be written to the stderr.
# When setting this option from the config file, it is recommended to use an absolute path.
#
# log-file = "/path/to/your/log/file"

# Write process ID to a file.
# write-pid-path = "/path/to/your/log/file"

# Rule-based per-window options.
#
# See WINDOW RULES section in the man page for how these work.
rules: ({
  match = "window_type = 'tooltip'";
  fade = false;
  shadow = true;
  opacity = 0.75;
  full-shadow = false;
}, {
  match = "window_type = 'dock'    || "
          "window_type = 'desktop' || "
          "_GTK_FRAME_EXTENTS@";
  blur-background = false;
}, {
  match = "window_type != 'dock'";
  # shader = "my_shader.frag";
}, {
  match = "window_type = 'dock' || "
          "window_type = 'desktop'";
  corner-radius = 0;
}, {
    match = "focused",
    opacity = 0.9,
}, {
    match = "! focused",
    opacity = 0.6,
}, {
  match = "name = 'Notification'   || "
          "class_g = 'Conky'       || "
          "class_g ?= 'Notify-osd' || "
          "class_g = 'Cairo-clock' || "
          "_GTK_FRAME_EXTENTS@";
  shadow = false;
})

# `@include` directive can be used to include additional configuration files.
# Relative paths are search either in the parent of this configuration file
# (when the configuration is loaded through a symlink, the symlink will be
# resolved first). Or in `$XDG_CONFIG_HOME/picom/include`.
#
# @include "extra.conf"

[yshui]

@zappolowski if the opacity is set by rules then the opacity property (which is what picom-trans sets) is ignored.

[zappolowski]

@yshui is there a recommended workaround to get something like the old behavior with the new approach? With old behavior I mean: inactive-opacity = 0.6 and active-opacity = 0.9 as initial values but also having the possibility of adjusting the values as needed?

PS: If you consider discussing it in the scope of this issue to be wrong, we can also move it to the discussions section.

[yshui]

you can match ! _NET_WM_WINDOW_OPACITY

[zen2]

I got the same problem that @zappolowski now.
I currently use basic rules like this:

opacity-rule = [
    "100:fullscreen",
    "95:class_g = 'URxvt'",
    "95:class_g = 'UXTerm'",
    "95:class_g = 'XTerm'",
    "95:class_g = 'Alacritty'",
    "100:window_type = 'normal'",       # Add a tiny bit of opacity to all normal windows to apply blur
    "95:window_type = 'dialog'",        # Add a tiny bit of opacity to all dialog windows to apply blur
    "95:window_type = 'popup_menu'",    # Add a tiny bit of opacity to all popup_menu windows to apply blur
    "95:window_type = 'notification'"   # Add a tiny bit of opacity to all popup_menu windows to apply blur
];

Before, with this configuration, I get used to modify window opacity by mouse button mapping (scroll wheel on title bar) and it was working perfectly.

So now how can I set opacity at window/class creation and then use picom-trans afterwards on windows ?