SUMMARY When I have an unblurred latte-layout and use it under Wayland, this thin black line divides the panel exactly in two halves. Blurred: no line X: no line STEPS TO REPRODUCE 1. use unblurred latte-layout 2. use Wayland 3. OBSERVED RESULT A thin line divides the panel exactly in two halves EXPECTED RESULT No line to be seen Besturingssysteem: Kubuntu 21.10 KDE Plasma-versie: 5.23.1 Versie van KDE-Frameworks: 5.87.0 Qt-versie: 5.15.2 Kernel-versie: 5.13.0-20-generic (64-bits) Grafisch platform: X11 Processors: 4 × Intel® Celeron® J4105 CPU @ 1.50GHz Geheugen: 7,4 GiB RAM Grafische processor: Mesa Intel® UHD Graphics 600
Created attachment 142900 [details] line in the panel Here you see the line in the panel. It's only a small piece of my desktop to make it clearer. Also I made the image a little bigger
no idea ...
I did a little more research in case someone else also has this strange thing. - the silly little black line is always black. Also when using a light plasma theme, - it is always exactly in the middle of the screen, how big long or short the panel is and no matter if the panel is left, right, top or bottom. - as said: it is only using Wayland with no blur. What i just found was that - you HAVE to have toggled "always visible". If the panel autohides or evades other windows, the phenomena also doesn't occur. I understand very well that this isn't groundshaking. Thank you..
1. if you disable KWin Blur Effect totally from plasma systemsettings same issue? 2. if you disable KWin Contrast Effet totally from plasma systemsettings same issue? 3. If you close Latte, use a plasma panel instead and use steps [1 and 2] does the issue appears?
1. if you disable KWin Blur Effect totally from plasma systemsettings same issue? that makes no difference. 2. if you disable KWin Contrast Effet totally from plasma systemsettings same issue? that also makes no difference at all 3. If you close Latte, use a plasma panel instead and use steps [1 and 2] does the issue appears? turns out that only in Latte there is this line... I tried in different ways.
4. how does it look with a bottom dock?
5. send also your latte layout file to check it out
Created attachment 142915 [details] bottom dock this is how it looks on the bottom dock
Created attachment 142916 [details] the latte layout here is the latte layout
But now I think about it: all my latte layouts give this line given the "right" conditions
One more experiment. I built latte 0.10.3 on an other computer. Also Intel cpu and graphics card but different, and a somewhat older Kubuntu version. The thin line DOESN'T appear.
I did one more experiment: I installed Neon User Edition. This gives the latest released builds of a lot (gear, frameworks etc). Guess what? Using Wayland the thin line SHOWS UP
Hello I confirm this bug on Arch. I will take a look tonight on my desktop which has an ATI GPU. Operating System: Arch Linux KDE Plasma Version: 5.23.2 KDE Frameworks Version: 5.87.0 Qt Version: 5.15.2 Kernel Version: 5.14.14-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 8 × Intel® Core™ i5-8350U CPU @ 1.70GHz Memory: 15.5 Gio of RAM Graphics Processor: Mesa Intel® UHD Graphics 620
Same bugs with my desktop: Operating System: Arch Linux KDE Plasma Version: 5.23.2 KDE Frameworks Version: 5.87.0 Qt Version: 5.15.2 Kernel Version: 5.14.15-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 2600X Six-Core Processor Memory: 31.3 Gio of RAM Graphics Processor: AMD Radeon RX 5600 XT
Created attachment 143178 [details] screenshot with plasma 5.22.5
Created attachment 143179 [details] screenshot with plasma 5.23 taken 20 minutes later I had Kubuntu 21.04 on my laptop. I just performed a "release upgrade" to the version 21.10. Then I made a screenshot. After taking the screenshot I added the "backports ppa" to Kubuntu 21.10 and upgraded to plasma 5.23. Bingo! There is the line... It must be some sort of a clash between latte-dock and plasma 5.23
(In reply to PK from comment #16) > It must be some sort of a clash between latte-dock and plasma 5.23 no it isnt, It works just fine on my system under wayland with: I use (i915 - intel driver) under wayland, Plasma 5.23.2 and Latte 0.10.3 what is your plasma theme? is it reproducable with Breeze plasma theme?
Using the Breeze plasma theme makes no difference. The line remains. I use the Lightly desktop theme. Switching to the Breeze desktop thema also makes no difference. Only thing I am sure of is that it started on both my computers (Neon, Kubuntu) after plasma 5.23 came...
But even if you use a little blur the line becomes quickly less visable...
without a proper way to reproduce in my system, there is no way to be fixed. I am using Plasma 5.23.2 no issue at all.
I fully understand!
https://www.reddit.com/r/kde/comments/qpa8cz/latte_dock_a_black_vertical_line_in_center/ users report that this is reproducable only with visibility mode: AlwaysVisible
I think you're right. When I toggle autohide there seems to be no line...
I confirm. Their is no line in auto-hide mode.
Git commit abc125fe652585474a6dc7aa5f518e32e119adfd by Michail Vourlakos. Committed on 11/11/2021 at 11:57. Pushed by mvourlakos into branch 'v0.10'. wayland:hide centered black line for alwaysvisible --drop RasterWindow for always visible ghost windows and use a fully transparent QQuickView FIXED-IN:0.10.4 M +5 -2 app/wm/waylandinterface.cpp https://invent.kde.org/plasma/latte-dock/commit/abc125fe652585474a6dc7aa5f518e32e119adfd
Git commit 199effaf2b90aa1724f7114f5c097f3d3b920437 by Michail Vourlakos. Committed on 11/11/2021 at 12:00. Pushed by mvourlakos into branch 'master'. wayland:hide centered black line for alwaysvisible --drop RasterWindow for always visible ghost windows and use a fully transparent QQuickView FIXED-IN:0.10.4 M +5 -2 app/wm/waylandinterface.cpp https://invent.kde.org/plasma/latte-dock/commit/199effaf2b90aa1724f7114f5c097f3d3b920437
Tested the fix on my system. Works 100% here.