SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** Many desktop effects are obscured by white pixels or white rectangles. The video https://icefangvault.myusa.cloud/index.php/s/3rALYFsgxH9afM4 shows the following effects in order: Morphing Popups when hovering over icons in the taskbar and moving between them Launch Feedback (This isn't a Desktop Effect; it is found in Cursors -> Configure Launch Feedback) Wobbly Windows when dragging the screen around Maximize and most notably: KDE Overview is completely unusable. Pressing Meta+tab, Meta+w, or Meta+g turns the screen white instead of showing desktop overview or desktop grid. Pressing escape will return the screen to normal. STEPS TO REPRODUCE 1. Turn on a desktop effect that squishes, squashes, or stretches a window (For example, Magic Lamp.) 2. Activate the effect (with a hover, mouse click, keyboard shortcut, etc. OBSERVED RESULT Animations are obscured in white. Sometimes a section of the screen is obscured by a white rectangle (Morphing Popups, Maximize, KDE Overview) and other times the animation is played but it is replaced by white pixels (Wobbly Windows, Magic Lamp.) EXPECTED RESULT I expect the pixels on the display to animate smoothly without being obscured by anything. SOFTWARE/OS VERSIONS Windows: N/A macOS: N/A Linux/KDE Plasma: OpenSUSE Tumbleweed 20231226 (available in About System) KDE Plasma Version: 5.91.90 KDE Frameworks Version: 5.248.0 Qt Version: 6.6.1 Kernel Version: 6.6.7-1-default (64-bit) Graphics Platform: X11 HARDWARE Processors: 2 x Intel® Core™2 Duo CPU P8400 @ 2.26GHz Memory: 3.7 GiB of RAM Graphics Processor: Mesa Mobile Intel® GM45 Express Chipset Manufacturer: LENOVO Product Name: 7417CTO System Version: ThinkPad T400 ADDITIONAL INFORMATION This issue is identical in both X11 and Wayland. This issue appears to be a regression. I do not have this problem when running from my live usb installer. My USB drive is: OpenSUSE Krypton 10.7 (a.k.a OpenSUSE Tumbleweed 20231209) Plasma 5.90.90 Frameworks 5.247.0 Qt 6.6.1 kernel 6.6.3-1-default (64 bit). I cannot install this version to my SSD because the OpenSUSE Krypton installer requires an internet connection and auto-updates at install time.
This looks like some shader doesn't compile. Please attach the output of > journalctl --user-unit plasma-kwin_wayland --boot 0 after triggering one of the effects, it should contain warnings about why that's happening
Created attachment 164835 [details] Output from journalctl --user-unit plasma-kwin_wayland --boot 0
Text file with console output is attached. Please note that I only get output when running in a Wayland session and only when not using sudo. If I'm in X11 or I append sudo to the start of the command, I get -- No entries -- Hopefully this helps; I don't see anything specifically mentioning desktop effects in there but I also don't know what I'd be looking for.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/4902
Okay, there's definitely a shader not compiling. It's hard to say what exactly is going on without the shader source though; that MR should help diagnose these kinds of problems.
Git commit 427ce522a22fde6d9ea5ec46e3749195281cdc84 by Xaver Hugl. Committed on 12/01/2024 at 21:42. Pushed by zamundaaa into branch 'master'. opengl/glshader: print the shader source if compilation fails The shader log is almost entirely useless without the source M +5 -0 src/opengl/glshader.cpp https://invent.kde.org/plasma/kwin/-/commit/427ce522a22fde6d9ea5ec46e3749195281cdc84
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/4905
Git commit df4657c9636a570e8dfb43d5852a4a9e01a7ed90 by Xaver Hugl. Committed on 12/01/2024 at 22:17. Pushed by zamundaaa into branch 'Plasma/6.0'. opengl/glshader: print the shader source if compilation fails The shader log is almost entirely useless without the source (cherry picked from commit 427ce522a22fde6d9ea5ec46e3749195281cdc84) M +5 -0 src/opengl/glshader.cpp https://invent.kde.org/plasma/kwin/-/commit/df4657c9636a570e8dfb43d5852a4a9e01a7ed90
Created attachment 164939 [details] Output from journalctl with source I think this version has the source you're looking for. It definitely looks different than the old version.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/4944
Git commit ed339de9536aab453701fff3488e0f9ea2f4de91 by Xaver Hugl. Committed on 16/01/2024 at 14:42. Pushed by zamundaaa into branch 'master'. opengl/glshadermanager: add missing newline M +1 -1 src/opengl/glshadermanager.cpp https://invent.kde.org/plasma/kwin/-/commit/ed339de9536aab453701fff3488e0f9ea2f4de91
Git commit 12c3197ca6839a2a470d3712a4bad4f6c71aa3ef by Xaver Hugl. Committed on 16/01/2024 at 14:55. Pushed by zamundaaa into branch 'Plasma/6.0'. opengl/glshadermanager: add missing newline (cherry picked from commit ed339de9536aab453701fff3488e0f9ea2f4de91) M +1 -1 src/opengl/glshadermanager.cpp https://invent.kde.org/plasma/kwin/-/commit/12c3197ca6839a2a470d3712a4bad4f6c71aa3ef
Created attachment 165027 [details] Output from journalctl still broken I am still seeing the issue on both X11 and Wayland on my laptop. Hopefully I have the latest updates from KDE and it was appropriate for me to reopen this bug report. I have attached a new journalctl output since it is significantly different.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/4992
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/4993
Git commit 0284610effee77a5295aa969eb5ba168a667a328 by Vlad Zahorodnii. Committed on 19/01/2024 at 15:44. Pushed by vladz into branch 'master'. opengl: Fix parsing of the else branch `it` points to `#else`. We need to move to the next line. M +1 -0 src/opengl/glshadermanager.cpp https://invent.kde.org/plasma/kwin/-/commit/0284610effee77a5295aa969eb5ba168a667a328
Git commit 7ba7ddfee8ae51827646c1419dcd368917ca2ba9 by Vlad Zahorodnii. Committed on 19/01/2024 at 15:57. Pushed by vladz into branch 'master'. opengl: Let OpenGL implementation handle if preprocessor directive It's less error prone and handles cases like if/elif/else better, etc. M +2 -2 src/opengl/colormanagement.glsl M +0 -37 src/opengl/glshadermanager.cpp https://invent.kde.org/plasma/kwin/-/commit/7ba7ddfee8ae51827646c1419dcd368917ca2ba9
Git commit 617acb537f4f224a17da4239adaf05484e787caf by Vlad Zahorodnii. Committed on 22/01/2024 at 09:33. Pushed by vladz into branch 'Plasma/6.0'. opengl: Let OpenGL implementation handle if preprocessor directive It's less error prone and handles cases like if/elif/else better, etc. (cherry picked from commit 7ba7ddfee8ae51827646c1419dcd368917ca2ba9) M +2 -2 src/opengl/colormanagement.glsl M +0 -37 src/opengl/glshadermanager.cpp https://invent.kde.org/plasma/kwin/-/commit/617acb537f4f224a17da4239adaf05484e787caf
Git commit 6c6be75fdf6e6ab10c00cad506501778b12cd931 by Vlad Zahorodnii. Committed on 22/01/2024 at 09:33. Pushed by vladz into branch 'Plasma/6.0'. opengl: Fix parsing of the else branch `it` points to `#else`. We need to move to the next line. (cherry picked from commit 0284610effee77a5295aa969eb5ba168a667a328) M +1 -0 src/opengl/glshadermanager.cpp https://invent.kde.org/plasma/kwin/-/commit/6c6be75fdf6e6ab10c00cad506501778b12cd931