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#1 2021-01-09 20:43:03

goakley
Member
Registered: 2013-02-21
Posts: 17
Website

Firefox and Xorg CPU Trouble after Hardware Upgrade

My Intel Z97 motherboard recently died, and I chose to replace it with an AMD B550 motherboard (which also forced me to replace the CPU and memory).  I did not replace my GeForce GTX 760.  The hardware install went great, memory tests passed, and everything booted as expected.  For the most part, everything on my system still works as expected, except for Xorg.

The problem I'm having, which I've only noticed while running Firefox, is that some actions (scrolling quickly in Firefox, trying to watch a YouTube video in Firefox) will cause Xorg to take up 100% of CPU and start dropping events:

...
[   429.609] (EE) event15 -       Das Keyboard: client bug: event processing lagging behind by 11ms, your system is too slow
[   429.609] (EE) event15 -       Das Keyboard: WARNING: log rate limit exceeded (5 msgs per 60min). Discarding future messages.
[   541.040] (EE) client bug: timer event19 debounce: scheduled expiry is in the past (-99ms), your system is too slow
[   541.040] (EE) client bug: timer event19 debounce short: scheduled expiry is in the past (-112ms), your system is too slow
...

I've tried reproducing this with other browsers such as Chromium, and running other applications like Steam and OpenSCAD, but nothing causes the high CPU usage and immense system slowdown like Firefox does.  Running Firefox from a clean state as a different user shows no improvement in behaviour. 

I think I've narrowed this down to the nvidia driver - by uninstalling nvidia and installing xf86-video-nouveau, the problem went away and I was able to use Firefox just fine.  However, nouveau doesn't work well with some other applications/games I use, so this isn't a long-term solution.  Wiping the xorg graphic configs and re-installing the nvidia driver (460.32.03-1) brought back the exact same issue as before installing the nouveau driver.

My combined (all the xorg.conf.d files) Xorg config is as follows:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 460.32.03

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

#
# Catch-all evdev loader for udev-based systems
# We don't simply match on any device since that also adds accelerometers
# and other devices that we don't really want to use. The list below
# matches everything but joysticks.

Section "InputClass"
        Identifier "evdev pointer catchall"
        MatchIsPointer "on"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
EndSection

Section "InputClass"
        Identifier "evdev keyboard catchall"
        MatchIsKeyboard "on"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
EndSection

Section "InputClass"
        Identifier "evdev touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
EndSection

Section "InputClass"
        Identifier "evdev tablet catchall"
        MatchIsTablet "on"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
EndSection

Section "InputClass"
        Identifier "evdev touchscreen catchall"
        MatchIsTouchscreen "on"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
EndSection
Section "OutputClass"
    Identifier "nvidia"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    Option "AllowEmptyInitialConfiguration"
    ModulePath "/usr/lib/nvidia/xorg"
    ModulePath "/usr/lib/xorg/modules"
EndSection
# Collection of quirks and blacklist/whitelists for specific devices.


# Accelerometer device, posts data through ABS_X/ABS_Y, making X unusable
# http://bugs.freedesktop.org/show_bug.cgi?id=22442 
Section "InputClass"
        Identifier "ThinkPad HDAPS accelerometer blacklist"
        MatchProduct "ThinkPad HDAPS accelerometer data"
        Option "Ignore" "on"
EndSection

# https://bugzilla.redhat.com/show_bug.cgi?id=523914
# Mouse does not move in PV Xen guest
# Explicitly tell evdev to not ignore the absolute axes.
Section "InputClass"
        Identifier "Xen Virtual Pointer axis blacklist"
        MatchProduct "Xen Virtual Pointer"
        Option "IgnoreAbsoluteAxes" "off"
        Option "IgnoreRelativeAxes" "off"
EndSection

# https://bugs.freedesktop.org/show_bug.cgi?id=55867
# Bug 55867 - Doesn't know how to tag XI_TRACKBALL
Section "InputClass"
        Identifier "Tag trackballs as XI_TRACKBALL"
        MatchProduct "trackball"
        MatchDriver "evdev"
        Option "TypeName" "TRACKBALL"
EndSection

# https://bugs.freedesktop.org/show_bug.cgi?id=62831
# Bug 62831 - Mionix Naos 5000 mouse detected incorrectly
Section "InputClass"
        Identifier "Tag Mionix Naos 5000 mouse XI_MOUSE"
        MatchProduct "La-VIEW Technology Naos 5000 Mouse"
        MatchDriver "evdev"
        Option "TypeName" "MOUSE"
EndSection
# Match on all types of devices but joysticks
#
# If you want to configure your devices, do not copy this file.
# Instead, use a config snippet that contains something like this:
#
# Section "InputClass"
#   Identifier "something or other"
#   MatchDriver "libinput"
#
#   MatchIsTouchpad "on"
#   ... other Match directives ...
#   Option "someoption" "value"
# EndSection
#
# This applies the option any libinput device also matched by the other
# directives. See the xorg.conf(5) man page for more info on
# matching devices.

Section "InputClass"
        Identifier "libinput pointer catchall"
        MatchIsPointer "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

Section "InputClass"
        Identifier "libinput keyboard catchall"
        MatchIsKeyboard "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

Section "InputClass"
        Identifier "libinput touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

Section "InputClass"
        Identifier "libinput touchscreen catchall"
        MatchIsTouchscreen "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

Section "InputClass"
        Identifier "libinput tablet catchall"
        MatchIsTablet "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection
# Example xorg.conf.d snippet that assigns the touchpad driver
# to all touchpads. See xorg.conf.d(5) for more information on
# InputClass.
# DO NOT EDIT THIS FILE, your distribution will likely overwrite
# it when updating. Copy (and rename) this file into
# /etc/X11/xorg.conf.d first.
# Additional options may be added in the form of
#   Option "OptionName" "value"
#
Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
#       MatchDevicePath "/dev/input/event*"
EndSection

Section "InputClass"
        Identifier "touchpad ignore duplicates"
        MatchIsTouchpad "on"
        MatchOS "Linux"
        MatchDevicePath "/dev/input/mouse*"
        Option "Ignore" "on"
EndSection

# This option enables the bottom right corner to be a right button on clickpads
# and the right and middle top areas to be right / middle buttons on clickpads
# with a top button area.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Default clickpad buttons"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
        Option "SecondarySoftButtonAreas" "58% 0 0 15% 42% 58% 0 15%"
EndSection

# This option disables software buttons on Apple touchpads.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Disable clickpad buttons on Apple touchpads"
        MatchProduct "Apple|bcm5974"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "0 0 0 0 0 0 0 0"
EndSection

Does anyone have any advice on how to further debug or resolve this situation?  If it's a driver issue, I worry that changing out for another nvidia graphics card won't help and that I'd have to get an entirely different AMD graphics card.

Thank you in advance for any help!


\o/

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#2 2021-01-10 12:14:37

xerxes_
Member
Registered: 2018-04-29
Posts: 328

Re: Firefox and Xorg CPU Trouble after Hardware Upgrade

Create new Firefox profile and check if you still have problem on it.

BTW. what applications/games doesn't work well on nouveau for you?

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#3 2021-01-10 19:07:31

goakley
Member
Registered: 2013-02-21
Posts: 17
Website

Re: Firefox and Xorg CPU Trouble after Hardware Upgrade

xerxes_ wrote:

Create new Firefox profile and check if you still have problem on it.

BTW. what applications/games doesn't work well on nouveau for you?

I tested both creating a new profile, and using a new firefox profile on a separate linux user account that had never used firefox before with a different window manager (I usually use awesome).  The issue was not resolved in either case.

Sadly nouveau isn't working well with some Steam games running through Proton.  (Risk of Rain 2 is my current obsession and crashes immediately when using the nouveau driver.)


\o/

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