ubuntustudio-bugs team mailing list archive

[Albert Cardona <2125530@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Upon opening MyPaint, I attempt to paint with the default brush, and the
program crashes immediately. The dmesg had this message:

```
[156358.012752] mypaint[473301]: segfault at 10 ip 0000000000586646 sp 00007e875db4c9e0 error 4 in python3.12[420000+2e3000] likely on CPU 0 (core 0, socket 0)
[156358.012763] Code: 89 fb 48 8b 3d cb 01 5b 00 48 3d 80 67 58 00 0f 85 30 01 00 00 48 c7 c0 f8 ff ff ff 4c 8b 25 31 01 5b 00 64 48 8b 00 4c 89 e2 <48> 8b 40 10 4c 39 e0 0f 85 dd 00 00 00 48 8d 43 ff 48 3d ff 01 00
```

Then I run MyPaint from the command line, and I see, when it crashes:

```
$ mypaint
INFO: mypaint: Installation layout: conventional POSIX-like structure with prefix '/usr'
INFO: gui.main: No locale setting found, using system locale
INFO: lib.i18n: POSIX: LANG='en_GB.UTF-8'
INFO: lib.i18n: POSIX: LANGUAGE='en_GB:en'
INFO: lib.i18n: Value of LANGUAGE after cleanup: 'en_GB:en:C'
INFO: gui.compatibility: Setting mode to 2.x (standard)
INFO: gui.compatibility: Setting default layer type to Pigment
INFO: gui.device: New device 'Wayland Pointer' (GDK_SOURCE_MOUSE, axes:2, class=GdkWaylandDevice, vendor=None, product=None)
INFO: gui.document: Initialized background from '/usr/share/mypaint/backgrounds/mrmamurk/mamurk_e_1.png'
WARNING: gui.keyboard: Ignoring keybinding for '<Actions>/BrushModifierActions/BlendModeMenu'
INFO: gui.brushmanager: Switching default pigment setting to On
INFO: lib.document: load_ora: '/home/albert/.local/share/mypaint/scratchpads/autosave.ora'
INFO: lib.document: 0.004s load_ora total
INFO: gui.filehandling: Loaded scratchpad from '/home/albert/.local/share/mypaint/scratchpads/autosave.ora'
INFO: gui.compatibility: Setting default layer type to Pigment
```

Is this a Wayland problem? Would MyPaint work with Xorg?

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: mypaint 2.0.1-10build2
ProcVersionSignature: Ubuntu 6.8.0-79.79-generic 6.8.12
Uname: Linux 6.8.0-79-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Tue Sep 23 22:08:37 2025
InstallationDate: Installed on 2022-03-11 (1292 days ago)
InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
SourcePackage: mypaint
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: mypaint (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble wayland-session

-- 
You received this bug notification because you are a member of Ubuntu
Studio Bugs, which is subscribed to mypaint in Ubuntu.
Matching subscriptions: Ubuntu Studio Bugs
https://bugs.launchpad.net/bugs/2125530

Title:
  MyPaint crashes upon attempting to paint right after opening it

Status in mypaint package in Ubuntu:
  New

Bug description:
  Upon opening MyPaint, I attempt to paint with the default brush, and
  the program crashes immediately. The dmesg had this message:

  ```
  [156358.012752] mypaint[473301]: segfault at 10 ip 0000000000586646 sp 00007e875db4c9e0 error 4 in python3.12[420000+2e3000] likely on CPU 0 (core 0, socket 0)
  [156358.012763] Code: 89 fb 48 8b 3d cb 01 5b 00 48 3d 80 67 58 00 0f 85 30 01 00 00 48 c7 c0 f8 ff ff ff 4c 8b 25 31 01 5b 00 64 48 8b 00 4c 89 e2 <48> 8b 40 10 4c 39 e0 0f 85 dd 00 00 00 48 8d 43 ff 48 3d ff 01 00
  ```

  Then I run MyPaint from the command line, and I see, when it crashes:

  ```
  $ mypaint
  INFO: mypaint: Installation layout: conventional POSIX-like structure with prefix '/usr'
  INFO: gui.main: No locale setting found, using system locale
  INFO: lib.i18n: POSIX: LANG='en_GB.UTF-8'
  INFO: lib.i18n: POSIX: LANGUAGE='en_GB:en'
  INFO: lib.i18n: Value of LANGUAGE after cleanup: 'en_GB:en:C'
  INFO: gui.compatibility: Setting mode to 2.x (standard)
  INFO: gui.compatibility: Setting default layer type to Pigment
  INFO: gui.device: New device 'Wayland Pointer' (GDK_SOURCE_MOUSE, axes:2, class=GdkWaylandDevice, vendor=None, product=None)
  INFO: gui.document: Initialized background from '/usr/share/mypaint/backgrounds/mrmamurk/mamurk_e_1.png'
  WARNING: gui.keyboard: Ignoring keybinding for '<Actions>/BrushModifierActions/BlendModeMenu'
  INFO: gui.brushmanager: Switching default pigment setting to On
  INFO: lib.document: load_ora: '/home/albert/.local/share/mypaint/scratchpads/autosave.ora'
  INFO: lib.document: 0.004s load_ora total
  INFO: gui.filehandling: Loaded scratchpad from '/home/albert/.local/share/mypaint/scratchpads/autosave.ora'
  INFO: gui.compatibility: Setting default layer type to Pigment
  ```

  Is this a Wayland problem? Would MyPaint work with Xorg?

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: mypaint 2.0.1-10build2
  ProcVersionSignature: Ubuntu 6.8.0-79.79-generic 6.8.12
  Uname: Linux 6.8.0-79-generic x86_64
  NonfreeKernelModules: zfs
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Sep 23 22:08:37 2025
  InstallationDate: Installed on 2022-03-11 (1292 days ago)
  InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
  SourcePackage: mypaint
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mypaint/+bug/2125530/+subscriptions