[Multiple displays] Panel blur is shown incorrectly on primary display, but correctly if secondary display is default

[NicoSoler]

Describe the bug
I have a two display system, with my main display being Diplay 1 (the horizontal monitor). When I try to activate blyr for the main panel, a fraction of the panel's background (around a third of it) is both blurred and darkened, while the rest of it remains the same.

This is using my main display as primary:

This is using my secondary display as primary:

This is using Transparent Top Bar. The combination of both worked just fine until last Blyr's update.

I also tested with a variety of other "transparent panel" extensions (except Dynamic Panel Transparency, because they lack 3.36 support). All with the same result (only a third of the panel is blurred + darkened) on my main display.

Expected behavior
The panel on the main display should be blurred normally.

Configuration (please complete the following information):

• GNOME Shell version: 3.36.3
• Fedora 32, fully updated
• Xorg session
• Dash to Dock, Transparent Top Bar (link above), Remove Drop Down Arrows?

Just in case, system specs:

• CPU: Ryzen 7 3700X
• 16GB RAM
• GPU: AMD RX5700XT

[alzeck]

I have the same on Arch issue it seems that only work if the primary display is the to the left or on top of the others.

[kupokunic]

Was bugging me so I decided to take a look. If you download the source and install it that way, you can fix this issue by doing the following:

• $HOME/gnome-shell-extension-blyr/[email protected]
• Open up 'extension.js'
• Navigate to row 435 and change it from 'y: -1 * tpy' to 'y: -1' (without the quotes)
• Navigate to row 442 and change it from 'tpy' to '1' (without the quotes)
• Save and run 'make local-install' again, then Alt+F2, type 'r' and enter to reload Gnome-Shell

As far as I can tell, this works with any multi-monitor orientation. But it'll need testing to confirm.

Screenshot below to show it working:

[NicoSoler]

Hi, I made the test on my system (completely removing Blyr first, then running make local-install on the changed extension).
It didn't work :(

[kupokunic]

Hi, I made the test on my system (completely removing Blyr first, then running make local-install on the changed extension).
It didn't work :(

Try playing around with the tpx settings too then. Those two fields are how you fix this for multimonitor support, but it may be on a case-by-case basis until yozoon can get it updated officially.