Segmentation fault

[astraelise]

I have installed UxPlay on a debian machine. The machine can be seen through airplay on iOS devices in the same network. However, when trying to screen mirror through it, it shows a "Segmentation fault" error, I ran UxPlay in debug mode, it shows the following:

Initialized server socket(s) Accepted IPv4 client on socket 24 Local: 192.168.1.224 Remote: 192.168.1.121 Open connections: 1 httpd receiving on socket 24 conn_request Handling request GET with URL /info INFO len = 1946151172 httpd receiving on socket 24 conn_request Handling request POST with URL /pair-setup httpd receiving on socket 24 conn_request Handling request POST with URL /pair-verify httpd receiving on socket 24 conn_request Handling request POST with URL /pair-verify httpd receiving on socket 24 conn_request Handling request POST with URL /fp-setup httpd receiving on socket 24 conn_request Handling request POST with URL /fp-setup httpd receiving on socket 24 conn_request Handling request SETUP with URL rtsp://192.168.1.224/14647767658038641318 DACP-ID: [REDACTED] Active-Remote: [REDACTED] Transport: null SETUP 1 eiv_len = 16 ekey_len = 72 fairplay_decrypt ret = 0 timing_rport = 54999 raop_ntp parse remote ip = 192.168.1.121 raop_ntp starting time raop_ntp local timing port socket 26 port UDP 44549 raop_rtp parse remote ip = 192.168.1.121 raop_rtp_mirror parse remote ip = 192.168.1.121 eport = 42053, tport = 44549 raop_ntp send_len = 32 raop_ntp receive time type_t packetlen = 32 raop_ntp sync correction = -1634874414113411 Accepted IPv4 client on socket 27 Local: 192.168.1.224 Remote: 192.168.1.121 Open connections: 2 httpd receiving on socket 24 conn_request Handling request GET with URL /info INFO len = 1946151172 httpd receiving on socket 24 conn_request Handling request GET_PARAMETER with URL rtsp://192.168.1.224/14647767658038641318 httpd receiving on socket 24 conn_request Handling request RECORD with URL rtsp://192.168.1.224/14647767658038641318 raop_handler_record httpd receiving on socket 24 conn_request Handling request SET_PARAMETER with URL rtsp://192.168.1.224/14647767658038641318 httpd receiving on socket 24 conn_request Handling request SETUP with URL rtsp://192.168.1.224/14647767658038641318 DACP-ID: [REDACTED] Active-Remote: [REDACTED] Transport: null type = 110 streamConnectionID = [REDACTED] raop_rtp_mirror starting mirroring raop_rtp_mirror local data port socket 28 port TCP 38269 Mirroring initialized successfully raop_rtp_mirror accepting client raop_rtp_mirror width_source = 608.000000 height_source = 1080.000000 width = 608.000000 height = 1080.000000 raop_rtp_mirror sps size = 17 raop_rtp_mirror pps size = 4 raop_rtp_mirror video ntp = 1635023384196461, now = 1635023384141874, latency = -54587 raop_rtp_mirror video ntp = 1635023384246464, now = 1635023384149825, latency = -96639 raop_rtp_mirror video ntp = 1635023384263132, now = 1635023384161874, latency = -101258 raop_rtp_mirror video ntp = 1635023384296467, now = 1635023384199622, latency = -96845 raop_rtp_mirror video ntp = 1635023384329802, now = 1635023384229266, latency = -100536 raop_rtp_mirror video ntp = 1635023384363138, now = 1635023384271609, latency = -91529 raop_rtp_mirror video ntp = 1635023384396473, now = 1635023384300202, latency = -96271 raop_rtp_mirror video ntp = 1635023384429809, now = 1635023384337842, latency = -91967 raop_rtp_mirror video ntp = 1635023384463144, now = 1635023384371670, latency = -91474 raop_rtp_mirror video ntp = 1635023384496480, now = 1635023384403856, latency = -92624 Segmentation fault

[fduncanh]

which debian what kind of machine (e.g., is it a PC or something else) anything unusual about it?

does you get to see the screen before the crash?

UxPlay should work

[astraelise]

which debian

Debian (Cinnamon) bullseye, latest possible kernel.

what kind of machine (e.g., is it a PC or something else) anything unusual about it?

It's a laptop, has rtl8821ce wireless chip, on Linux the WiFi works with user installed kernals, but Bluetooth doesn't work for whatever reason,

does you get to see the screen before the crash?

Nope, not at all I'm still stuck at the terminal. I've so far run it in root user, but I don't think this should've caused any issues(?)

[fduncanh]

the RAOP protocol stuff is working correctly, your problem may be in GStreamer video.

try by specifying the video sink and no audio

uxplay -as 0 -vs ximagesink

or -vs gtksink

[astraelise]

Tried both arguments, but still stuck on the same error "Segmentation Fault".

[fduncanh]

did a blank screen open with -vs gtksink?

I think the problem has to be with your gstreamer setup. please test it by following the simple instructions on this page:

https://gstreamer.freedesktop.org/documentation/frequently-asked-questions/using.html?gi-language=c

[astraelise]

did a blank screen open with -vs gtksink?

Yes, a blank screen did open, but closed after a screen mirroring attempt

I think the problem has to be with your gstreamer setup. please test it by following the simple instructions on this page:

Tried the instructions, reinstalled gstreamer, rebulit uxplay afterwards with no effect.

[fduncanh]

To see if it's anything in recent changes to uxplay, see if https://github.com/antimof/UxPlay and https://github.com/FD-/RPiPlay show the same problem. These require any firewall to be turned off and have less options than current UxPlay, which is derived from them,

current UxPlay works fine on a standard Ubuntu 20.04 system, should work on Debian.

[astraelise]

After further research, it seems the issue seems to be with my linux drivers for integrated intel graphics not uxplay, sorry for the trouble

[Simon-Martens]

This seems to be a problem with the Intel display driver. For some people it might help to know that installing the non-free version of the driver on Debian

sudo apt install intel-media-va-driver-non-free

helped me resolve the issue for now.

[fduncanh]

@schnulller thanks for this tip., I'll add it to the troubleshooting part of the README.