ValveSoftware/SteamOS

Steam Client crashes when copying with a controller in Blender 4.4+ (CrashID: bp-9484bd75-68c2-43af-ba5f-bf9032250924)

Closed this issue · 1 comments

Your system information

  • Steam client version: 1757650573
  • SteamOS version: 3.7.13
  • Opted into Steam client beta?: No
  • Opted into SteamOS beta?: No
  • Have you checked for updates in Settings > System?: Yes

Please describe your issue in as much detail as possible:

In Desktop Mode, when using Blender 4.4 or newer, the entire Steam Client crashes when I press a controller button that is mapped to Ctrl+C via Steam Input. This issue does not occur with Blender 4.3 or older versions.

Based on the journalctl logs, the crash appears to be caused by a Segmentation Fault (Signal 11/SEGV) in both the steamwebhelper and the main steam processes. The stack trace from the coredump points to a direct relationship with the libSDL3.so.0 library, which handles input devices.

(Disclaimer: I used an AI assistant to help parse and summarize the complex system logs to pinpoint the relevant error messages.)

Key log evidence:

Sep 24 17:11:12 steamdeck systemd-coredump[6814]: Process 4179 (steamwebhelper) of user 1000 terminated abnormally with signal 11/SEGV
Sep 24 17:11:13 steamdeck kernel: steam[3889]: segfault at 0 ip 00000000f7c73c76 sp 00000000ff9cdb24 error 4 in libc.so.6
-- Stack trace of crashing steam process points to:
-- #1 0x00000000f3a58cb8 n/a (libSDL3.so.0 + 0x249cb8)
-- #5 0x00000000f51d6ca1 n/a (steamui.so + 0x14f3ca1)
The crash report has been successfully uploaded with CrashID=bp-9484bd75-68c2-43af-ba5f-bf9032250924.

Steps for reproducing this issue:

  1. In Desktop Mode, map the Ctrl and C keys to any button on the Steam Controller (e.g., a back grip button) using the Steam Input configurator.

  2. Download and run Blender version 4.4 or newer (tested with 4.5.3) from the official website.

  3. With the default scene open, left-click on any numerical value in the Properties panel (e.g., the object's Location X value).

  4. Now, press the controller button mapped to Ctrl+C to attempt to copy the value.

  5. The Steam Client will immediately crash and close.

Thank you for your time and for looking into this issue.! :D

Hello @yongki48, this issue is already being tracked at ValveSoftware/steam-for-linux#12061. Closing as a duplicate.