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Hi
Firefox has slowed down considerably on KDE . Using OpenGL 2 compositing.Tried with Xrender and disabled desktop effects.Doesnt change a thing.Doing an Alt-Tab while in the firefox window to the next window takes 5 -6 secs.Same amount of time is required when coming back via Alt-Tab to a firefox window from another application.Everything is slow,minimize,open.Its not the kernel update since its normal in Cinnamon on the same kernel and machine.
Tried to optimize it as mentioned in the Arch Wiki.But nothing seems to have any effect.
Im using Latte-Dock. If i disable the dock and start it from Kde Runner it still the same.
Lost really.Any help appreciated,driving me insane
Last edited by kaushikgn (2020-05-24 15:49:49)
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1. Start Firefox from some terminal to see if it throws some errors, warnings and anything interesting when you use it (do also Alt-Tab and other tasks you normally do).
2. Start some process monitor (like top or other) and see what processes are taking most CPU. Also switch to thread view (in top press H).
3. Is there something interesting in journalctl, coredumpctl?
4. What GPU(s) do you have and what drivers they use?
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1. Start Firefox from some terminal to see if it throws some errors, warnings and anything interesting when you use it (do also Alt-Tab and other tasks you normally do).
2. Start some process monitor (like top or other) and see what processes are taking most CPU. Also switch to thread view (in top press H).
3. Is there something interesting in journalctl, coredumpctl?
4. What GPU(s) do you have and what drivers they use?
Graphics card : Nvidia Geforce GT 1030.Using the latest nvidia drivers from Arch linus.
[chicu@chicu ~]$ pacman -Qs nvidia
local/egl-wayland 1.1.5-1
EGLStream-based Wayland external platform
local/libvdpau 1.4-1
Nvidia VDPAU library
local/libxnvctrl 440.82-1
NVIDIA NV-CONTROL X extension
local/nvidia 440.82-17
NVIDIA drivers for linux
local/nvidia-lts 1:440.82-17
NVIDIA drivers for linux-lts
local/nvidia-settings 440.82-1
Tool for configuring the NVIDIA graphics driver
local/nvidia-utils 440.82-1
NVIDIA drivers utilitiesThough wayland is shown here im not using Wayland . Using X.
When start Firefox from console i see these warning messages. Nothing on Alt-Tab
(firefox:3624): Gtk-WARNING **: 21:44:01.921: Theme parsing error: gtk-contained.css:24:64: Using one color stop with linear-gradient() is deprecated.
(firefox:3624): Gtk-WARNING **: 21:44:01.921: Theme parsing error: gtk-contained.css:58:64: Using one color stop with linear-gradient() is deprecated.
(firefox:3624): Gtk-WARNING **: 21:44:01.930: Theme parsing error: gtk-contained.css:2878:24: '0' is not a valid color name
(firefox:3624): Gtk-WARNING **: 21:44:01.936: Theme parsing error: gtk-contained.css:4917:21: Junk at end of value for border-radius
Gtk-Message: 21:44:01.953: Failed to load module "appmenu-gtk-module"
(/usr/lib/firefox/firefox:3650): Gtk-WARNING **: 21:44:03.250: Theme parsing error: gtk-contained.css:24:64: Using one color stop with linear-gradient() is deprecated.
(/usr/lib/firefox/firefox:3650): Gtk-WARNING **: 21:44:03.250: Theme parsing error: gtk-contained.css:58:64: Using one color stop with linear-gradient() is deprecated.
(/usr/lib/firefox/firefox:3650): Gtk-WARNING **: 21:44:03.257: Theme parsing error: gtk-contained.css:2878:24: '0' is not a valid color name
(/usr/lib/firefox/firefox:3650): Gtk-WARNING **: 21:44:03.262: Theme parsing error: gtk-contained.css:4917:21: Junk at end of value for border-radius
Gtk-Message: 21:44:03.276: Failed to load module "appmenu-gtk-module"
(/usr/lib/firefox/firefox:3809): Gtk-WARNING **: 21:44:03.646: Theme parsing error: gtk-contained.css:24:64: Using one color stop with linear-gradient() is deprecated.
(/usr/lib/firefox/firefox:3809): Gtk-WARNING **: 21:44:03.646: Theme parsing error: gtk-contained.css:58:64: Using one color stop with linear-gradient() is deprecated.
(/usr/lib/firefox/firefox:3809): Gtk-WARNING **: 21:44:03.653: Theme parsing error: gtk-contained.css:2878:24: '0' is not a valid color name
(/usr/lib/firefox/firefox:3809): Gtk-WARNING **: 21:44:03.658: Theme parsing error: gtk-contained.css:4917:21: Junk at end of value for border-radius
Gtk-Message: 21:44:03.673: Failed to load module "appmenu-gtk-module"
(/usr/lib/firefox/firefox:3874): Gtk-WARNING **: 21:44:05.959: Theme parsing error: gtk-contained.css:24:64: Using one color stop with linear-gradient() is deprecated.
(/usr/lib/firefox/firefox:3874): Gtk-WARNING **: 21:44:05.959: Theme parsing error: gtk-contained.css:58:64: Using one color stop with linear-gradient() is deprecated.
(/usr/lib/firefox/firefox:3874): Gtk-WARNING **: 21:44:05.977: Theme parsing error: gtk-contained.css:2878:24: '0' is not a valid color name
(/usr/lib/firefox/firefox:3874): Gtk-WARNING **: 21:44:05.988: Theme parsing error: gtk-contained.css:4917:21: Junk at end of value for border-radius
Gtk-Message: 21:44:06.016: Failed to load module "appmenu-gtk-module"
(/usr/lib/firefox/firefox:3920): Gtk-WARNING **: 21:44:07.443: Theme parsing error: gtk-contained.css:24:64: Using one color stop with linear-gradient() is deprecated.
(/usr/lib/firefox/firefox:3920): Gtk-WARNING **: 21:44:07.443: Theme parsing error: gtk-contained.css:58:64: Using one color stop with linear-gradient() is deprecated.
(/usr/lib/firefox/firefox:3920): Gtk-WARNING **: 21:44:07.450: Theme parsing error: gtk-contained.css:2878:24: '0' is not a valid color name
(/usr/lib/firefox/firefox:3920): Gtk-WARNING **: 21:44:07.455: Theme parsing error: gtk-contained.css:4917:21: Junk at end of value for border-radius
Gtk-Message: 21:44:07.470: Failed to load module "appmenu-gtk-module"Nothing special in journalctl
coredumpctl does not hav anything related to firefox or kde as such.An old reference to colorpicker if i list via info
Thanks
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