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yshui / picom

A lightweight compositor for X11 with animation support
https://picom.app/
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Popup and dropdown menu opacity does not work for Qt6 application(s?) #796

Closed akinokonomi closed 2 years ago

akinokonomi commented 2 years ago

Platform

Arch Linux x86_64

GPU, drivers, and screen setup

GTX 960, NVIDIA drivers 510.54, one screen

Environment

AwesomeWM

picom version

vgit-aa316 (and tag v9.1 too)

Diagnostics ``` **Version:** vgit-aa316 ### Extensions: * Shape: Yes * XRandR: Yes * Present: Present ### Misc: * Use Overlay: No (Another compositor is already running) * Config file used: /home/user/.config/picom/picom.conf ### Drivers (inaccurate): NVIDIA ### Backend: glx * Driver vendors: * GLX: NVIDIA Corporation * GL: NVIDIA Corporation * GL renderer: NVIDIA GeForce GTX 960/PCIe/SSE2 ```

Configuration:

Configuration file (the exact copy of current `picom.sample.conf` file) ``` ################################# # 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. # # shadow = false shadow = true; # The blur radius for shadows, in pixels. (defaults to 12) # shadow-radius = 12 shadow-radius = 7; # The opacity of shadows. (0.0 - 1.0, defaults to 0.75) # shadow-opacity = .75 # The left offset for shadows, in pixels. (defaults to -15) # shadow-offset-x = -15 shadow-offset-x = -7; # The top offset for shadows, in pixels. (defaults to -15) # shadow-offset-y = -15 shadow-offset-y = -7; # Red color value of shadow (0.0 - 1.0, defaults to 0). # shadow-red = 0 # Green color value of shadow (0.0 - 1.0, defaults to 0). # shadow-green = 0 # Blue color value of shadow (0.0 - 1.0, defaults to 0). # shadow-blue = 0 # Hex string color value of shadow (#000000 - #FFFFFF, defaults to #000000). This option will override options set shadow-(red/green/blue) # shadow-color = "#000000" # Specify a list of conditions of windows that should have no shadow. # # examples: # shadow-exclude = "n:e:Notification"; # # shadow-exclude = [] shadow-exclude = [ "name = 'Notification'", "class_g = 'Conky'", "class_g ?= 'Notify-osd'", "class_g = 'Cairo-clock'", "_GTK_FRAME_EXTENTS@:c" ]; # Specify a list of conditions of windows that should have no shadow painted over, such as a dock window. # clip-shadow-above = [] # Specify a X geometry that describes the region in which shadow should not # be painted in, such as a dock window region. Use # shadow-exclude-reg = "x10+0+0" # for example, if the 10 pixels on the bottom of the screen should not have shadows painted on. # # shadow-exclude-reg = "" # Crop shadow of a window fully on a particular Xinerama screen to the screen. # xinerama-shadow-crop = false ################################# # Fading # ################################# # Fade windows in/out when opening/closing and when opacity changes, # unless no-fading-openclose is used. # fading = false fading = true; # Opacity change between steps while fading in. (0.01 - 1.0, defaults to 0.028) # fade-in-step = 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 fade-out-step = 0.03; # The time between steps in fade step, in milliseconds. (> 0, defaults to 10) # fade-delta = 10 # Specify a list of conditions of windows that should not be faded. # fade-exclude = [] # 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 inactive windows. (0.1 - 1.0, defaults to 1.0) # inactive-opacity = 1 inactive-opacity = 0.8; # Opacity of window titlebars and borders. (0.1 - 1.0, disabled by default) # frame-opacity = 1.0 frame-opacity = 0.7; # Let inactive opacity set by -i override the '_NET_WM_WINDOW_OPACITY' values of windows. # inactive-opacity-override = true inactive-opacity-override = false; # Default opacity for active windows. (0.0 - 1.0, defaults to 1.0) # active-opacity = 1.0 # Dim inactive windows. (0.0 - 1.0, defaults to 0.0) # inactive-dim = 0.0 # Specify a list of conditions of windows that should never be considered focused. # focus-exclude = [] focus-exclude = [ "class_g = 'Cairo-clock'" ]; # Use fixed inactive dim value, instead of adjusting according to window opacity. # inactive-dim-fixed = 1.0 # Specify a list of opacity rules, in the format `PERCENT:PATTERN`, # like `50:name *= "Firefox"`. picom-trans is recommended over this. # Note we don't make any guarantee about possible conflicts with other # programs that set '_NET_WM_WINDOW_OPACITY' on frame or client windows. # example: # opacity-rule = [ "80:class_g = 'URxvt'" ]; # # opacity-rule = [] ################################# # 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`. corner-radius = 0 # Exclude conditions for rounded corners. rounded-corners-exclude = [ "window_type = 'dock'", "window_type = 'desktop'" ]; ################################# # Background-Blurring # ################################# # Parameters for background blurring, see the *BLUR* section for more information. # blur-method = # blur-size = 12 # # blur-deviation = false # # blur-strength = 5 # Blur background of semi-transparent / ARGB windows. # Bad in performance, with driver-dependent behavior. # The name of the switch may change without prior notifications. # # blur-background = false # Blur background of windows when the window frame is not opaque. # Implies: # blur-background # Bad in performance, with driver-dependent behavior. The name may change. # # blur-background-frame = false # Use fixed blur strength rather than adjusting according to window opacity. # 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"; # # blur-kern = "" blur-kern = "3x3box"; # Exclude conditions for background blur. # blur-background-exclude = [] blur-background-exclude = [ "window_type = 'dock'", "window_type = 'desktop'", "_GTK_FRAME_EXTENTS@:c" ]; ################################# # General Settings # ################################# # Enable remote control via D-Bus. See the man page for more details. # 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 `xr_glx_hybrid`. # `xrender` is the default one. # # backend = "glx" backend = "xrender"; # Enable/disable VSync. # vsync = false vsync = true; # Enable remote control via D-Bus. See the *D-BUS API* section below for more details. # dbus = false # Try to detect WM windows (a non-override-redirect window with no # child that has 'WM_STATE') and mark them as active. # # mark-wmwin-focused = false mark-wmwin-focused = true; # Mark override-redirect windows that doesn't have a child window with 'WM_STATE' focused. # mark-ovredir-focused = false mark-ovredir-focused = true; # Try to detect windows with rounded corners and don't consider them # shaped windows. The accuracy is not very high, unfortunately. # # detect-rounded-corners = 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. # # detect-client-opacity = false detect-client-opacity = true; # Use EWMH '_NET_ACTIVE_WINDOW' to determine currently focused window, # rather than listening to 'FocusIn'/'FocusOut' event. Might have more accuracy, # provided that the WM supports it. # # 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. # # unredir-if-possible = false # Delay before unredirecting the window, in milliseconds. Defaults to 0. # unredir-if-possible-delay = 0 # Conditions of windows that shouldn't be considered full-screen for unredirecting screen. # unredir-if-possible-exclude = [] # Use 'WM_TRANSIENT_FOR' to group windows, and consider windows # in the same group focused at the same time. # # detect-transient = 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. # # detect-client-leader = false # Resize damaged region by a specific number of pixels. # A positive value enlarges it while a negative one shrinks it. # If the value is positive, those additional pixels will not be actually painted # to screen, only used in blur calculation, and such. (Due to technical limitations, # with use-damage, those pixels will still be incorrectly painted to screen.) # Primarily used to fix the line corruption issues of blur, # in which case you should use the blur radius value here # (e.g. with a 3x3 kernel, you should use `--resize-damage 1`, # with a 5x5 one you use `--resize-damage 2`, and so on). # May or may not work with *--glx-no-stencil*. Shrinking doesn't function correctly. # # resize-damage = 1 # Specify a list of conditions of windows that should be painted with inverted color. # Resource-hogging, and is not well tested. # # invert-color-include = [] # GLX backend: Avoid using stencil buffer, useful if you don't have a stencil buffer. # Might cause incorrect opacity when rendering transparent content (but never # practically happened) and may not work with blur-background. # My tests show a 15% performance boost. Recommended. # # glx-no-stencil = false # GLX backend: Avoid rebinding pixmap on window damage. # Probably could improve performance on rapid window content changes, # but is known to break things on some drivers (LLVMpipe, xf86-video-intel, etc.). # Recommended if it works. # # glx-no-rebind-pixmap = false # Disable the use of damage information. # This cause the whole screen to be redrawn everytime, instead of the part of the screen # has actually changed. Potentially degrades the performance, but might fix some artifacts. # The opposing option is use-damage # # no-use-damage = false use-damage = true; # Use X Sync fence to sync clients' draw calls, to make sure all draw # calls are finished before picom starts drawing. Needed on nvidia-drivers # with GLX backend for some users. # # xrender-sync-fence = false # GLX backend: Use specified GLSL fragment shader for rendering window contents. # See `compton-default-fshader-win.glsl` and `compton-fake-transparency-fshader-win.glsl` # in the source tree for examples. # # glx-fshader-win = "" # Force all windows to be painted with blending. Useful if you # have a glx-fshader-win that could turn opaque pixels transparent. # # 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. # # 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) # # max-brightness = 1.0 # Make transparent windows clip other windows like non-transparent windows do, # instead of blending on top of them. # # transparent-clipping = false # Set the log level. Possible values are: # "trace", "debug", "info", "warn", "error" # in increasing level of importance. Case doesn't matter. # 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. # # log-level = "debug" 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" # Show all X errors (for debugging) # show-all-xerrors = false # Write process ID to a file. # write-pid-path = "/path/to/your/log/file" # Window type settings # # 'WINDOW_TYPE' is one of the 15 window types defined in EWMH standard: # "unknown", "desktop", "dock", "toolbar", "menu", "utility", # "splash", "dialog", "normal", "dropdown_menu", "popup_menu", # "tooltip", "notification", "combo", and "dnd". # # Following per window-type options are available: :: # # fade, shadow::: # Controls window-type-specific shadow and fade settings. # # opacity::: # Controls default opacity of the window type. # # focus::: # Controls whether the window of this type is to be always considered focused. # (By default, all window types except "normal" and "dialog" has this on.) # # full-shadow::: # Controls whether shadow is drawn under the parts of the window that you # normally won't be able to see. Useful when the window has parts of it # transparent, and you want shadows in those areas. # # clip-shadow-above::: # Controls wether shadows that would have been drawn above the window should # be clipped. Useful for dock windows that should have no shadow painted on top. # # redir-ignore::: # Controls whether this type of windows should cause screen to become # redirected again after been unredirected. If you have unredir-if-possible # set, and doesn't want certain window to cause unnecessary screen redirection, # you can set this to `true`. # wintypes: { tooltip = { fade = true; shadow = true; opacity = 0.75; focus = true; full-shadow = false; }; dock = { shadow = false; clip-shadow-above = true; } dnd = { shadow = false; } popup_menu = { opacity = 0.8; } dropdown_menu = { opacity = 0.8; } }; ```

Steps of reproduction

  1. cp /etc/xdg/picom.conf ~/.config/picom/picom.conf
  2. picom -b

Expected behavior

Semi-transparent Qt6 menus.

Current Behavior

Opaque Qt6 menus.

Stack trace

Other details

Tooltips transparency works fine in Qt6.

Building the same application (RSS Guard) against Qt5 fixes popup and dropdown menus opacity.

Qt5 version: 5.15.3 Qt6 version: 6.2.3

akinokonomi commented 2 years ago

Apparently it is a Qt bug. Some of those menus were fixed in Qt 6.3.1.

Closing it.

vincentbernat commented 2 years ago

I am running Qt 6.3.1 and there are still menus that do not set the right window type. Do you have a reference of this bug on the Qt side?

akinokonomi commented 2 years ago

Do you have a reference of this bug on the Qt side?

@vincentbernat No, not really. It was just my speculation. It's very tricky.

Mostly, transparency works only for some of the dropdown menus, not all of them at once. Sometimes, like, few seconds later, when I close and open them again, those same semi-transparent menus become opaque. It looks very random to me.

vincentbernat commented 2 years ago

Looking at Qt source code, it seems that _NET_WM_WINDOW_TYPE is set, but maybe it is not set before mapping the window, which would explain the randomness? I have very few applications impacted by this (Calibre), so I hope it will be fixed once Qt6 is more common.