[Therion] loch segmentation fault at launch

[Martin Budaj]

Hi,

Loch runs fine on a Debian + KDE machine with this configuration:

1) no xwaylandvideobridge installed
2) inxi -G output:
Graphics:
  Device-1: Intel CometLake-U GT2 [UHD Graphics] driver: i915 v: kernel
  Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.4
    compositor: kwin_wayland driver: X: loaded: modesetting unloaded: fbdev,vesa
    dri: iris gpu: i915 resolution: 2194x1234
  API: EGL v: 1.5 drivers: iris,swrast
    platforms: gbm,wayland,x11,surfaceless,device
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.2.8-1
    renderer: Mesa Intel UHD Graphics (CML GT2)
  API: Vulkan Message: No Vulkan data available.

M.

On Mon, Jan 6, 2025 at 4:44 PM Bill Gee <bgee at campercaver.net> wrote:
>
> I did not pursue this during the holidays.  Now that Therion 6.3.3 is
> out, it is probably time to dig into it a bit deeper.
>
> I downloaded Therion 6.3.3 from the git repository, compiled and
> installed it.  No errors, that all went very smoothly.
>
> Loch still does not run in a Wayland session.  It gives a segmentation
> error and dumps core within about 2 seconds of launching.
>
> I tried it on three different machines.  They all have the same basic
> configuration.  All three fail in the same way.
>
> SCINU reports that Loch works in a Wayland session running on Debian
> Testing.  I am on Fedora 41.  Something is different, but I have no idea
> what it is.  Could it be a different version of xwayland?
>
> A bit more information about my system:
>
> bgee at main2:~$ rpm -qi xwaylandvideobridge
> Name        : xwaylandvideobridge
> Version     : 0.4.0
> Release     : 7.fc41
> Architecture: x86_64
> Install Date: Fri Nov  8 07:08:53 2024
> Group       : Unspecified
> Size        : 214303
> License     : (GPL-2.0-only or GPL-3.0-only) and LGPL-2.0-or-later and
> BSD-3-Clause
> Signature   : RSA/SHA256, Thu Oct 31 05:14:12 2024, Key ID d0622462e99d6ad1
> Source RPM  : xwaylandvideobridge-0.4.0-7.fc41.src.rpm
> Build Date  : Wed Oct 30 15:46:50 2024
> <snip>
>
> bgee at main2:~$ inxi -G
> Graphics:
>    Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated
> Graphics
>      driver: i915 v: kernel
>    Device-2: Logitech Webcam C270 driver: snd-usb-audio,uvcvideo type: USB
>    Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.4
>      compositor: kwin_wayland driver: X: loaded: modesetting unloaded:
> fbdev,vesa
>      dri: crocus gpu: i915 resolution: 1920x1080
>    API: EGL v: 1.5 drivers: crocus,swrast
>      platforms: gbm,wayland,x11,surfaceless,device
>    API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.2.8
>      renderer: Mesa Intel HD Graphics 4600 (HSW GT2)
>    API: Vulkan v: 1.3.296 drivers: N/A surfaces: xcb,xlib,wayland
>
> This system is a Dell Optiplex.  The other two systems are a Dell laptop
> and a Lenovo laptop.  All are running Intel i915 displays.
>
> ===============
> Bill Gee
>
> On 11/25/24 15:09, Scinu via Therion wrote:
> >> On Thu, Nov 21, 2024 at 2:14 PM Bill Gee <bgee at campercaver.net> wrote:
> >>
> >>> Confirmed - This problem has something to do with Wayland.  I logged
> >>> into a test computer using X instead of Wayland.  Loch starts without
> >>> error.  Logging out and back in with a Wayland session causes loch to fail.
> >>
> >> Hmm, no problem in the Wayland session with KDE on Debian Testing (and
> >> no problem in the X session, either). Any other Wayland users here
> >> that could report crashes or good operation?
> >
> > With a fresh install from the AUR (archlinux user repository) loch
> > starts without problems on both X and wayland (sway).
> >
> > therion 6.3.1 (2024-11-22)
> >    - using Proj 9.5.0, compiled against 9.5.0
> >
> > loch 6.3.1
> > (why is loch --version not implemented?)
> >
> > If I can help test more, pls let me know
> >
> > Best,
> >
> > Scinu
> > _______________________________________________
> > Therion mailing list
> > Therion at speleo.sk
> > https://mailman.speleo.sk/listinfo/therion
>
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