unredir-if-possible froze screen

[alaviss]

Platform

Gentoo amd64

GPU, drivers, and screen setup

Intel HD 5500 on modesetting driver, mesa 18.3.6

name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Intel Open Source Technology Center (0x8086)
    Device: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2)  (0x1616)
    Version: 18.3.6
    Accelerated: yes
    Video memory: 3072MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.5
    Max compat profile version: 3.0
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.1
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.3.6
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 3.0 Mesa 18.3.6
OpenGL shading language version string: 1.30
OpenGL context flags: (none)

OpenGL ES profile version string: OpenGL ES 3.1 Mesa 18.3.6
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10

Environment

i3-gaps

Compton version

compton --version: v6-rc1-122-g72ede42
compton --diagnostics:

**Version:** v6-rc1-122-g72ede42

### Extensions:

* Shape: Yes
* XRandR: Yes
* Present: Present

### Misc:

* Use Overlay: Yes
* Config file used: /home/leorize/local/config/compton.conf

### Drivers (inaccurate):

modesetting

Compton configuration:

unredir-if-possible: true;

Steps of reproduction

1. run compton

Expected behavior

Not freezing the screen

Current Behavior

Froze the screen

[yshui]

Does the screen freeze happen immediately after you start compton?

Also IIUC, this problem doesn't happen at all if you set unredir-if-possible to false?

[alaviss]

Yep, all correct.

[yshui]

Can you run compton with --log-level=trace --log-file=compton.log, and upload compton.log?

[alaviss]

Here you go: compton.log

Command line was:

compton --config /dev/null --unredir-if-possible --log-level=trace --log-file=compton.log

[yshui]

@alaviss I added some debug prints to the redir-debug branch, can you get a log file with that branch?

[alaviss]

Here's the log with redir-debug branch: compton.log

[yshui]

@alaviss Should be fixed in next