Where does the bug appear (feature/product)? Cursor IDE Describe the Bug when open cursor 3 in Linux Cachyos kde, it crash with the message The window terminated unexpectedly (reason: 'crashed, code: ‘139’) options: Don’t restore editors Close, Reopen It’s unusable for me now Steps to Reproduc…

I am also on CachyOS KDE, and updated Cursor this morning, and got the exact same issue. It’s also unusable for me. I even tried downloading the 3.0 app image and the 2.6 app image instead of using the binary from the AUR, and both of the app images wouldn’t even launch at all. The one from the AUR …

I am getting the same thing on Arch linux, for some very odd and suspicious reason though when I launch Cursor with the verbose flag(cursor –-verbose) , Cursor actually launches totally fine! It’s almost as if it behaves properly when it knows its being watched… :eyes:

Issue across Arch Linux it seems

Hey, this is a known issue with Cursor 3.0.4 on Linux. Multiple users on different distros like Arch, CachyOS, and Fedora hit the same SIGSEGV code 139. As a temporary workaround, run it with the --verbose flag: cursor --verbose Like @eli.wavv mentioned in this thread, Cursor starts fine with tha…

Cursor 3.0.4 Linux The window terminated unexpectedly

Support Bug Reports

Topic		Replies	Views
Cursor 3.0 Crashing Bug Reports crashes , linux	3	125	April 3, 2026
SIGSEGV in zygote (--type=zygote) on Fedora 43 / kernel 6.19 — Cursor 3.0.4 Bug Reports crashes , linux	3	36	April 3, 2026
Cursor AppImage updater crashes with SIGSEGV while updating to 3.0.4 on Linux Bug Reports installation , crashes , linux	6	92	April 25, 2026
Cursor 0.46.9-5 Crashes on Launch (Hyprland, Arch Linux, SIGTRAP) Bug Reports	12	1053	April 21, 2025
Cursor Editor Window Opens But UI Not Rendering on Manjaro Linux Bug Reports installation , crashes , linux	9	140	March 24, 2026

Cursor 3.0.4 Linux The window terminated unexpectedly

Related topics