[BUG] Claude Desktop (Linux) does not exit on window close; orphaned process blocks subsequent launches

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

If claude-desktop is launched, and then closed, after resume from suspend there is still a claude-desktop process running which prevents claude-desktop from opening properly, and causing repeated syslog entries:

running "pkill claude-desktop" kills the process and allows proper application start.

What Should Happen?

claude-desktop should terminate all processes on close.

Error Messages/Logs

2026-08-12T08:50:18.689287-04:00 rab-zenbook claude-desktop[256096]: [256096:0812/085018.689280:ERROR:content/browser/gpu/gpu_process_host.cc:992] GPU process launch failed: error_code=1002

Steps to Reproduce

Launch Claude Desktop.
Close the application window.
Run pgrep -af claude-desktop.

or

Launch claude-desktop
Close it
Suspend
Resume
Attempt to run claude desktop

Claude Model

_No response_

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

I'm not running claude code

Platform

Other

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

OS / distribution: Ubuntu 24.04
Kernel: 6.14.0-37-generic
Desktop environment / compositor: X11/Marco
GPU: NVIDIA
NVIDIA driver version: 550.163.01
Claude Desktop version: 1.26832.0