Xcomposite crash

[Matthew M. Dean]

Ubuntu 20.04 LTS

Using the latest git -
right click > add > Window capture (Xcomposite) > OK
Segmentation fault (core dumped)

dmesg -
Mar 30 20:20:08 desktop kernel: [ 8224.846257] obs[46690]: segfault at 0 ip 0000000000000000 sp 00007ffc7c3bde88 error 14 in obs[557dcaa3e000+5f000]
Mar 30 20:20:08 desktop kernel: [ 8224.846261] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.

https://obsproject.com/logs/0DfQQWBg2fkCRt6F

Any advice?

 

[Matthew M. Dean]

I guess there's additional problems, can't even stream.

Mar 30 20:39:26 desktop kernel: [ 9382.801709] traps: rtmp-stream: co[65937] general protection fault ip:7fe95125265c sp:7fe8bbdfda58 error:0 in libc-2.31.so[7fe9510e9000+178000]

 

[Matthew M. Dean]

Tried the OBS 27.2.4 PPA as well. I can stream this but XSHM is god awful slow. Average time to render is beyond 30ms.

Trying to add Xcomposite borks as well -
Segfault happened at: 0x0: Cannot access memory at address 0x0
PC(0x00000000) not located in a known VMA region (needed executable region)!

---
I found out it's using the onboard Intel by mistake. Switching the system default to AMD corrected the issue. Explains why I was only getting 40 fps as well.