Your system information

• Steam client version (build number or date): I don't know how to find this.
• Distribution (e.g. Ubuntu): Arch Linux
• Opted into Steam client beta?: I've tried both stable and beta.
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

When you plug in a ps4 controller, steam crashes. If it's plugged in before you start steam, steam doesn't even start. In the terminal I get this after I plug it in while its been running.

I've tried the steam-native aur package, and the plain steam runtime. Exact some thing.

It doesn't crash in big picture mode for some reason.

Local Device Found
  type: 054c 09cc
  path: /dev/hidraw6
  serial_number: 40:1b:5f:d8:63:1d - 0
  Manufacturer: Sony Interactive Entertainment
  Product:      Wireless Controller
  Release:      100
  Interface:    3

!! Steam controller device opened for index 0.
Steam Controller reserving XInput slot 0
DS4 Controller calibration:
  Sensor 0: bias -6, sensitivity 1.9919  Sensor 1: bias 8, sensitivity 1.9527  Sensor 2: bias 10, sensitivity 1.8904  Sensor 3: bias 0, sensitivity 1.9996  Sensor 4: bias 0, sensitivity 1.9629  Sensor 5: bias 1, sensitivity 2.0109Controller 0 connected, configuring it now...
Installing breakpad exception handler for appid(steam)/version(1522709045)
!! Controller 0 attributes:
  Type: 34
  ProductID: 2508
  Serial: 401b5fd8631d
  Capabilities: 00000003
  Firmware Version: 0
  Firmware Build Time: 2147483647 (Tue, 19 Jan 2038 03:14:07 GMT)
  Bootloader Build Time: 2147483647 (Tue, 19 Jan 2038 03:14:07 GMT)
Loaded Config for Local Selection Path for App ID 413090: /home/communist/.local/share/Steam/steamapps/workshop/content/241100/1186435726/851604638009836982_legacy.bin
[413090]Non-Steam Controller Configs Enabled: 1
Loaded Config for Local Selection Path for App ID 413090: /home/communist/.local/share/Steam/steamapps/workshop/content/241100/1186435726/851604638009836982_legacy.bin
Opted-in Controller Mask: 1
Loaded Config for Local Selection Path for App ID 413080: /home/communist/.local/share/Steam/userdata/53914368/config/controller_configs/apps/413080/401b5fd8631d/guest/controller_configuration.vdf
[413080]Non-Steam Controller Configs Enabled: 1
/home/communist/.local/share/Steam/steam.sh: line 927:  7287 Segmentation fault      (core dumped) $STEAM_DEBUGGER "$STEAMROOT/$STEAMEXEPATH" "$@"
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Steps for reproducing this issue:

1. start steam
2. plug in ps4 controller.
3. watch steam crash.