Blur only works for Waybar when scaling is set to > 1.01%

[foggerty]

Hi, I'm working on the assumption that this is a compositor issue, and so reporting it here. If not, please let me know and I'll take it to the Waybar folks :smiley:

Expected behavior: blur works in Waybar no matter the scaling used.

Actual behavior: blur only works when I've set scaling to anything > 1.01% with wlr-randr:

wlr-randr --output eDP-1 --scale 1.01

Note that I have to run this command after (re)starting Hyprland, as for some reason scaling defaults to 1.5%. And yes, blur works at that scale.

My Hyprland config is here and it's running on:

• Arch Linux (Kernel 6.3.6-arch-1)
• GPU: UHD Graphics 620 (Intel)
• Driver: i915

Note that I just tried waybar-hyprland-git and got the same issue.

Waybar config and style are found [here]().

[Fxzzi]

Looking at your hyprland config, you haven't put layerrule = blur, waybar into the decoration settings. Could you try that with normal scaling?

[foggerty]

Still no go sorry.

[foggerty]

Wondering if it's a driver issue as I'm not seeing drop-shadows either. Will try this setup on a VM and see what happens.

[foggerty]

Found the problem! Well kinda - custom colors/style from pywal caused 'issues'. If I remove that, then blur works fine for Waybar, no matter the scaling.

I removed the following line from Waybar's config all all was well - other than the color scheme for by rice being ruined :(

@import "/home/matt/.cache/wal/colors-waybar.css"

Thanks for the help!

[foggerty]

Quick update - setting the background color in Waybar kills the blur, unless I pull the scaling trick. I was leaning towards it being a Waybar issue, but now leaning back towards it being a compositor issue given this behavior,

[mshzsh]

Also try this: blurls=waybar It must be add in the hyprland.conf

[foggerty]

Nope, no go. I also replaced my config with the sample config here and still no.

Will have a play around with Waybar settings tonight and see if there's something there.

[foggerty]

Got it! The scaling factor was not it, but it is a clue as to what's going on. I finally narrowed it down to some weird interaction between Waybar's styling and Hyprland's compositor (well, pretty sure without digging through the code).

Basically if I do not apply custom styling to Waybar then everything's fine. Zero problems with blur.

But apply styling to Waybar, and the following will happen:

• start waybar - no blur
• force a re-draw by showing/hiding it (via killall -SIGURS1 waybar) - blur appears!
• Have Waybar redraw ANYTHING (e.g. clock update, workspace switch) - no blur :-(

UNLESS scaling is set to > 1.01%. Then it doesn't matter what styling that I'm using, blur just stays. In fact, it's blurred after startup as well.

So yeah, not sure if I should leave this with you guys or take it to the Waybar team?

[GabrielMrqs]

Also try this: blurls=waybar It must be add in the hyprland.conf

man, I added this command but it only works for like, 1 second, after that turns off blur :(

[Serpentian]

The possible reason for the blur not to be applied, is that in css of waybar opacity option is used. Using rgba colors instead (and removing opacity) fixes the issue.

[foggerty]

Thanks @Serpentian, that works :-)

Anyway, this is looking very much like a Waybar issue, so I'll close this.

[ManImDead12]

@import "/home/matt/.cache/wal/colors-waybar.css"

Is this for hyprland.conf or waybar css?