Leap 16.0 KDE Plasma 6 version issues 001

dcurtisfra · January 5, 2026, 3:24pm

 > kinfo
Operating System: openSUSE Leap 16.0
KDE Plasma Version: 6.4.2
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1
Kernel Version: 6.12.0-160000.8-default (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 8600G w/ Radeon 760M Graphics
Memory: 32 GiB of RAM (30.5 GiB usable)
Graphics Processor: AMD Radeon Graphics
 >

Putting it bluntly, the KDE Plasma version is not new enough.

I raised a KDE Bug Report related to an issue I had with the Kontact PIM module KOrganizer – <KOrganizer change to view To-Do - crash with signal: Aborted> – the KDE developer response from Allen Winter was:

I did put a lot of effort into crashes like this one for the 25.08 release.
so please upgrade when you can and try again with 25.08

In the mean time, the KDE Plasma PIM components are still regularly crashing and occupying space in the systemd coredump directory –

 # du -hs /var/lib/systemd/coredump/
771M    /var/lib/systemd/coredump/
 #

 > coredumpctl 
Hint: You are currently not seeing messages from other users and the system.
      Users in the 'systemd-journal' group can see all messages. Pass -q to
      turn off this notice.
TIME                           PID  UID  GID SIG     COREFILE EXE                                   SIZE
Wed 2025-12-10 17:35:36 CET  48000 1001 1001 SIGSEGV missing  /usr/bin/plasmashell                     -
Wed 2025-12-10 17:35:37 CET  50280 1001 1001 SIGABRT missing  /usr/libexec/drkonqi                     -
Wed 2025-12-10 18:16:55 CET  61690 1001 1001 SIGSEGV missing  /usr/bin/plasmashell                     -
Wed 2025-12-10 18:16:56 CET  63572 1001 1001 SIGABRT missing  /usr/libexec/drkonqi                     -
Wed 2025-12-10 19:04:01 CET  63976 1001 1001 SIGSEGV missing  /usr/bin/plasmashell                     -
Wed 2025-12-10 19:04:02 CET  87433 1001 1001 SIGABRT missing  /usr/libexec/drkonqi                     -
Thu 2025-12-11 09:59:48 CET   4998 1001 1001 SIGSEGV missing  /usr/bin/kwalletmanager5                 -
Thu 2025-12-11 10:02:09 CET   5740 1001 1001 SIGSEGV missing  /usr/libexec/drkonqi                     -
Thu 2025-12-11 11:48:30 CET  26836 1001 1001 SIGSEGV missing  /usr/bin/kontact                         -
Thu 2025-12-11 20:38:03 CET  66779 1001 1001 SIGSEGV missing  /usr/bin/plasmashell                     -
Thu 2025-12-11 20:38:04 CET 101535 1001 1001 SIGABRT missing  /usr/libexec/drkonqi                     -
Fri 2025-12-12 09:03:50 CET   5870 1001 1001 SIGABRT missing  /usr/bin/akonadi_html_to_text            -
 . 
 . 
 . 
Tue 2025-12-30 09:32:04 CET   6398 1001 1001 SIGABRT missing  /usr/bin/akonadi_html_to_text            -
Tue 2025-12-30 09:34:09 CET  27559 1001 1001 SIGABRT missing  /usr/bin/akonadi_html_to_text            -
Wed 2025-12-31 10:40:56 CET   3971 1001 1001 SIGSEGV missing  /usr/bin/kontact                         -
Wed 2025-12-31 10:41:35 CET  10008 1001 1001 SIGSEGV missing  /usr/bin/filelight                       -
Thu 2026-01-01 14:47:12 CET   5706 1001 1001 SIGSEGV present  /usr/bin/kontact                     32.9M
Fri 2026-01-02 10:03:36 CET   7032 1001 1001 SIGABRT present  /usr/bin/akonadi_html_to_text         2.9M
Fri 2026-01-02 10:05:43 CET  28395 1001 1001 SIGABRT present  /usr/bin/akonadi_html_to_text           3M
Fri 2026-01-02 10:12:42 CET   2276 1001 1001 SIGSEGV present  /usr/bin/plasmashell                 81.3M
Fri 2026-01-02 10:12:42 CET  48407 1001 1001 SIGABRT present  /usr/libexec/drkonqi                957.4K
Fri 2026-01-02 18:44:00 CET  28958 1001 1001 SIGSEGV present  /usr/bin/kontact                     46.6M
Sat 2026-01-03 14:07:23 CET   5634 1001 1001 SIGSEGV present  /usr/bin/kwalletmanager5              3.5M
Sat 2026-01-03 14:09:22 CET   5897 1001 1001 SIGSEGV present  /usr/bin/kwalletmanager5              3.6M
Sat 2026-01-03 14:09:33 CET   6122 1001 1001 SIGSEGV present  /usr/libexec/drkonqi                  6.7M
Sat 2026-01-03 17:31:39 CET   3957 1001 1001 SIGSEGV present  /usr/bin/kontact                     43.4M
Sun 2026-01-04 16:35:22 CET   2227 1001 1001 SIGSEGV present  /usr/bin/plasmashell                107.4M
Sun 2026-01-04 16:35:22 CET   4765 1001 1001 SIGABRT present  /usr/libexec/drkonqi                955.8K
Sun 2026-01-04 18:40:41 CET  21133 1001 1001 SIGSEGV present  /usr/bin/kontact                     28.4M
Sun 2026-01-04 18:50:06 CET  12955 1001 1001 SIGSEGV present  /usr/bin/plasmashell                 82.5M
Sun 2026-01-04 18:50:07 CET  22856 1001 1001 SIGABRT present  /usr/libexec/drkonqi                956.8K
Mon 2026-01-05 09:07:39 CET   4031 1001 1001 SIGSEGV present  /usr/bin/kontact                     43.1M
Mon 2026-01-05 09:07:58 CET   6535 1001 1001 SIGABRT present  /usr/bin/akonadi_html_to_text         2.9M
Mon 2026-01-05 09:10:06 CET  33240 1001 1001 SIGABRT present  /usr/bin/akonadi_html_to_text         3.7M
Mon 2026-01-05 12:00:09 CET 112199 1001 1001 SIGSEGV present  /usr/bin/kontact                     30.5M
Mon 2026-01-05 12:00:33 CET   2251 1001 1001 SIGSEGV present  /usr/bin/plasmashell                101.8M
Mon 2026-01-05 12:00:33 CET 112975 1001 1001 SIGABRT present  /usr/libexec/drkonqi                957.2K
Mon 2026-01-05 14:46:56 CET 118629 1001 1001 SIGSEGV present  /usr/bin/kontact                     62.3M
 >

So, what to do?

Stay with Leap 16.0 and move KDE Plasma over to the KDE:Applications repository – <https://build.opensuse.org/repositories/KDE:Applications>?
Move to Slowroll?
Move to Tumbleweed?

In my “ Leap 16.0 system upgrade experience 0001” post, “deano_ferrari” mentioned that, the move the newer KDE Plasma repositories may well relieve this issue –

I can try a migration again with a more selective list of the repositories needed –
The SDB:KDE repositories list seems to be incorrect for the case of Leap 16.0 – <https://en.opensuse.org/SDB:KDE_repositories>

malcolmlewis · January 5, 2026, 3:39pm

Sounds like you need to raise an openSUSE bug report https://en.opensuse.org/openSUSE:Submitting_bug_reports

dcurtisfra · January 5, 2026, 6:19pm

@malcolmlewis:

Agreed, a Bug Report will be needed to trigger the move to a newer KDE Plasma version in the Leap 16.0 repositories – I did consider that road but, chose to first bounce the issue off the Forums readers …

Wolfheri · January 5, 2026, 8:28pm

You have to install the repositories from openbuildservice and zypper dup from them.

zypper ar -fp 75 'https://download.opensuse.org/repositories/KDE:/Qt6/openSUSE_Leap_$releasever' KDE-Qt6
zypper ar -fp 75 'https://download.opensuse.org/repositories/KDE:/Frameworks/openSUSE_Leap_$releasever' KDE-Frameworks
zypper ar -fp 75 'https://download.opensuse.org/repositories/KDE:/Applications/KDE_Frameworks5_openSUSE_Leap_$releasever' KDE-Applications
zypper ar -fp 75 'https://download.opensuse.org/repositories/KDE:/Extra/KDE_Applications_openSUSE_Leap_$releasever' KDE-Extra
zypper -v dup --allow-vendor-change

deano_ferrari · January 5, 2026, 8:47pm

Yes, that’s the decision I made upon installing Leap last year. Works like a dream.

dcurtisfra · January 6, 2026, 6:16pm

Then, given the replies received, that’s exactly what I’ll do –

Move to to the openSUSE KDE instance of the Open Build Service and, stay with Leap 16.0.

Once that’s proven to be smooth and reliable, a Bug Report to suggest that Leap 16 moves in that direction in general, could be well worth the effort …

dcurtisfra · January 7, 2026, 3:38pm

Done – after 2 or 3 times executing “zypper dup” …

But, first start of Kontact after the upgrade produced a single crash – < Kontact - Program terminated with signal SIGSEGV, Segmentation fault.>

The second and subsequent starts function as expected – without crashing.

In KMail, the drop-down menus on the e-Mail items now function as expected – instead of unexpectedly disappearing after the 3rd or 4th menu entry …

More to come later.

deano_ferrari · January 7, 2026, 7:56pm

Can only speculate here…nothing in the ~/.cache (left over from pre-upgrade) that needed clearing out first? The backtrace shows it’s in QtWebEngine, which Kontact uses to display HTML emails. Hence my thinking that if it only happened once and the next start worked, it could just be a stale cache issue.

dcurtisfra · January 8, 2026, 10:28am

@deano_ferrari:

It happened again this morning – thanks for the ~/.cache thought – I’ll deal with that in a moment …

dcurtisfra · January 8, 2026, 11:13am

@deano_ferrari:

Logged out, cleaned out ~/.cache from a VT, logged back in again –

Same again – 1st start of Kontact crashes with the same segmentation fault …
Investigating with Dr Konqi drops 1.6G of debuginfo into ~/.cache/debuginfod_client/ …

Sauerland · January 8, 2026, 11:32am

What about a new User?
Do it start there?

dcurtisfra · January 9, 2026, 4:40pm

The Kontact crash on 1st start issue has been fixed by the KDE Gear repository update this morning (283 packages changed) to Gear version 25.12.1.

Also confirmed in the KDE Bug Report raised by me and mentioned above.
The root cause is a, possibly hardware specific, Qt6 GPUInfo initialization issue.

Also, please note that, Leap 16.0 with the latest KDE Gear version is running nicely and smoothly, without the annoying little Kontact PIM issues present with the KDE Plasma version currently in the standard Leap 16.0 repositories.

For information – my current hardware:

 # inxi -xxx --filter --cpu --graphics --machine
Machine:
  Type: Desktop System: ASUS product: N/A v: N/A serial: N/A
  Mobo: ASUSTeK model: PRIME B850-PLUS v: Rev 1.xx serial: <filter>
    part-nu: SKU uuid: 162cb9e5-01b4-49c4-e100-a0ad9f033d55
    UEFI: American Megatrends v: 1402 date: 11/12/2025
CPU:
  Info: 6-core model: AMD Ryzen 5 8600G w/ Radeon 760M Graphics bits: 64
    type: MT MCP smt: enabled arch: Zen 4 rev: 2 cache: L1: 384 KiB L2: 6 MiB
    L3: 16 MiB
  Speed (MHz): avg: 2383 min/max: 414/5076 boost: enabled volts: 1.2 V
    ext-clock: 100 MHz cores: 1: 2383 2: 2383 3: 2383 4: 2383 5: 2383 6: 2383
    7: 2383 8: 2383 9: 2383 10: 2383 11: 2383 12: 2383 bogomips: 104199
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Phoenix1 vendor: ASUSTeK
    driver: amdgpu v: kernel arch: RDNA-3 pcie: speed: 16 GT/s lanes: 16 ports:
    active: HDMI-A-1 empty: DP-1, DP-2, DP-3, DP-4, DP-5, Writeback-1
    bus-ID: 0a:00.0 chip-ID: 1002:15bf class-ID: 0300 temp: 27.0 C
  Display: unspecified server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.6
    compositor: kwin_wayland driver: dri: radeonsi gpu: amdgpu display-ID: :0
    screens: 1
  Screen-1: 0 s-res: 3840x2160 s-dpi: 96 s-size: 1016x571mm (40.00x22.48")
    s-diag: 1165mm (45.88")
  Monitor-1: HDMI-A-1 model: Idek Iiyama PL3288UH serial: <filter>
    res: 3840x2160 hz: 60 dpi: 140 size: 698x393mm (27.48x15.47")
    diag: 801mm (31.5") modes: max: 3840x2160 min: 720x400
  API: EGL v: 1.5 hw: drv: amd radeonsi platforms: device: 0 drv: radeonsi
    device: 1 drv: swrast gbm: drv: radeonsi surfaceless: drv: radeonsi x11:
    drv: radeonsi inactive: wayland
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 24.3.3 glx-v: 1.4
    direct-render: yes renderer: AMD Radeon Graphics (radeonsi gfx1103_r1 LLVM
    19.1.7 DRM 3.61 6.12.0-160000.8-default) device-ID: 1002:15bf
  API: Vulkan v: 1.4.309 layers: 1 surfaces: xcb,xlib device: 0
    type: integrated-gpu driver: N/A device-ID: 1002:15bf
 #

dcurtisfra · January 28, 2026, 2:25pm

Next adventure: KDE Plasma 6.6 Beta release – currently running version 6.5.90 (Beta 1).
Version 6.5.92 (Beta 2) has been announced by the KDE folks.

It’s executing amazingly stably – the only minor gripes are the English-only SDDM buttons and also, some parts of the Plasma applications.