Segmentation fault on Ubuntu 20.10

[andlessa]

Hi,

I could install UxPlay without issues. After running uxplay I can find it with my iPad, but when I try to connect I get a Segmentation fault error.
Here is the full screen log:

Initialized server socket(s)
*** WARNING *** The program 'uxplay' uses the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** For more information see http://0pointer.de/blog/projects/avahi-compat.html
Accepted IPv4 client on socket 23
Local: xxxx
Remote: xxxx
raop_ntp receive timeout
Accepted IPv4 client on socket 26
Local: xxxx
Remote: xxxx
raop_rtp_mirror starting mirroring
Segmentation fault (core dumped)

I'm using Ubuntu 20.10 and a Intel graphics card (UHD Graphics 620 (Whiskey Lake))

Any idea how to fix it?

[Westie1012]

Hi, I have an Intel UHD Graphics 630 and the same issue. As far as i can tell the issue is with gstreamer or intel graphics driver and as such rather hard to fix.

[wrf3]

I have the same problem. I'm running Ubuntu 20.10. My card is a Quadro RTX 5000. It's possible that it's trying to use Intel graphics; how would I stop that? Thanks.

[wrf3]

Answering my own question, with help from another posting: uninstall gstreamer1.0-vaapi

Now it appears to work fine. Thanks!

FYI, I remote lecture and want to try using the ipad as a graphics tablet.

[wrf3]

How do I remove the large black border?

[cffs]

Same workaround (uninstall gstreamer1.0-vaapi) worked for me as well, on a laptop with Intel UHD and NVIDIA GPUs.

How do I remove the large black border?

A black border seem to be application-dependent. For my part, I observe it only with GoodNotes. Playing with UxPlay window size can help, but another factor is when I activate mirroring:

• Activate mirroring on home screen, then launch GoodNotes ⇒ black border.
• Activate mirroring on GoodNotes in "Mirror Entire Screen" mode, then switch to presentation mode ⇒ black border.
• Activate mirroring on GoodNotes already in presentation mode ⇒ no border!

[wrf3]

Thanks!

[ketil-malde]

Huh. I experienced the same problem (segfaults on Ubuntu 20.10 when enabling screen mirroring from my iPad and choosing uxplay), although sometimes it would work - then I would only see a green screen. Uninstalling vaapi seemed to fix the segfaults, but then no window would appear at all.

[bubak4]

Answering my own question, with help from another posting: uninstall gstreamer1.0-vaapi

Now it appears to work fine. Thanks!

FYI, I remote lecture and want to try using the ipad as a graphics tablet.

It works with debian:bullseye too

[damienlegallois]

Removing gstreamer1.0-vaapi solved my problem too, thx.

Had a black screen when trying to mirror an iPad on an Ubuntu 23.10.