https://bugs.documentfoundation.org/show_bug.cgi?id=173277

Heiko Scheidt <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[email protected],
                   |                            |[email protected]
           Keywords|bibisectRequest             |bibisected, bisected

--- Comment #3 from Heiko Scheidt <[email protected]> ---
I could reproduce the issue on 

Version: 26.2.5.2 (X86_64)  (openSUSE Tumbleweed)
Build ID: 620(Build:2)
CPU threads: 8; OS: Linux 7.2; UI render: default; VCL: kf6 (cairo+wayland)
Locale: de-DE (de_DE.UTF-8); UI: de-DE
Calc: threaded

but also not on 

Version: 25.8.4.0.0+ (X86_64) / LibreOffice Community
Build ID: 12c639145df4450f7cba3abe0628ad016071a3a5
CPU threads: 8; OS: Linux 7.2; UI render: default; VCL: gtk3
Locale: de-DE (de_DE.UTF-8); UI: en-US
Calc: threaded
(TDF build)

The first slide appears in acceptable time on my machine, but the slide pane
shows only empty slides. In this time, the application is inresponsive (no
reaction on menu clicks).

---------

Bisection on repo linux-64-26.2 (commits between 25.8 up to 26.2) shows:

51594b148ddc6480946ee9a9b13c0345a87fefef is the first 'bad' commit
commit 51594b148ddc6480946ee9a9b13c0345a87fefef
Author: Jenkins Build User <[email protected]>
Date:   Tue Dec 2 03:24:47 2025 +0100

    source sha:c2fedef548f2822cf2a7e7b3ff928d389ce25728

    source sha:c2fedef548f2822cf2a7e7b3ff928d389ce25728

 instdir/program/libsvgfilterlo.so | Bin 1065448 -> 1065488 bytes
 instdir/program/libvcllo.so       | Bin 23402256 -> 23402296 bytes
 instdir/program/setuprc           |   2 +-
 instdir/program/versionrc         |   2 +-
 4 files changed, 2 insertions(+), 2 deletions(-)

----------------------------

>git show c2fedef548f2822cf2a7e7b3ff928d389ce25728

commit c2fedef548f2822cf2a7e7b3ff928d389ce25728
Author: Noel Grandin <[email protected]>
Date:   Wed Aug 6 20:35:05 2025 +0200

    BitmapEx->Bitmap in Graphic

    now that Bitmap supports transparency

    Tweak a couple of unit tests. Since some backends use
    pre-multiplied alpha, if A == 0, then RGB will also
    be zero.

    Had to comment out one unit test (see comment in unit test).

    Change-Id: I45e4b5ea9f21e3c5bc74992ca4ecee1897212821
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/189022
    Reviewed-by: Noel Grandin <[email protected]>
    Tested-by: Jenkins

Adding Noel to CC.

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