GLX Backend causes PICOM to freeze rendering on launch

[kfoxirl]

Platform

Arch / 5.15.167.4-microsoft-standard-WSL2

GPU, drivers, and screen setup

NVIDIA P2000 (i915 gpu disabled) three monitors side-by-side
xf86-video-* not installed, MESA 24.0.8

name of display: :10
MESA: error: ZINK: vkCreateInstance failed (VK_ERROR_INCOMPATIBLE_DRIVER)
glx: failed to create drisw screen
display: :10 screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
Vendor: Microsoft Corporation (0xffffffff)
Device: D3D12 (NVIDIA Quadro P2000) (0xffffffff)
Version: 24.0.8
Accelerated: yes
Video memory: 12099MB
Unified memory: no
Preferred profile: core (0x1)
Max core profile version: 4.6
Max compat profile version: 4.6
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.1
OpenGL vendor string: Microsoft Corporation
OpenGL renderer string: D3D12 (NVIDIA Quadro P2000)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 24.0.8-arch1.1
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.6 (Compatibility Profile) Mesa 24.0.8-arch1.1
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile

OpenGL ES profile version string: OpenGL ES 3.1 Mesa 24.0.8-arch1.1
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10

Environment

Plasma6 + i3wm with kwin disabled.

picom version

v12.5 (/startdir/picom revision a456d43)

Diagnostics

[ 12/17/2024 13:10:58.650 parse_config_libconfig WARN ] The refresh-rate option has been deprecated. Please remove it from your configuration file. If you encounter any problems without this feature, please feel free to open a bug report [ 12/17/2024 13:10:58.651 c2_parse_target WARN ] Type specifier is deprecated. Type "c" specified on target "_GTK_FRAME_EXTENTS" will be ignored, you can remove it. [ 12/17/2024 13:10:58.651 c2_parse_target WARN ] Type specifier is deprecated. Type "c" specified on target "_GTK_FRAME_EXTENTS" will be ignored, you can remove it. **Version:** v12.5 (/startdir/picom revision a456d43)

Extensions:

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

Misc:

• Use Overlay: No

• Config file specified: None

• Config file used: /home/karl/.config/picom.conf

Drivers (inaccurate):

MESA: error: ZINK: vkCreateInstance failed (VK_ERROR_INCOMPATIBLE_DRIVER)
glx: failed to create drisw screen

Backend: glx

• Driver vendors:
• GLX: Mesa Project and SGI
• GL: Microsoft Corporation
• GL renderer: D3D12 (NVIDIA Quadro P2000)
• Accelerated: 1
  [ 12/17/2024 13:10:59.604 egl_init WARN ] The egl backend is still experimental, use with care.
  libEGL warning: DRI2: failed to authenticate
  MESA: error: ZINK: vkCreateInstance failed (VK_ERROR_INCOMPATIBLE_DRIVER)
  libEGL warning: egl: failed to create dri2 screen
  [ 12/17/2024 13:10:59.630 egl_init ERROR ] EGL_KHR_image_pixmap not available.
  Cannot initialize backend egl

Configuration:

Configuration 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.
#
# 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 = 8

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

# Parameters for background blurring, see BLUR section in the man page for more information.
#  blur-method = dual_kawase
#  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 = false;

# 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 = false;

# 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 = "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"

Steps of reproduction

1. Load picom with any option with the GLX backend.

Expected behavior

Windows render as expected with compositor.

Current Behavior

Windows render once then PICOM freezes

Stack trace

OpenGL trace

Other details