Weird glitches when switching workspaces and launching windows

I recently noticed this behavior in alacritty and a few gtk apps like Thunar.

The glitch appears only for a split second before everything returns normal. And this usually happens when I switch between workspaces or launch new windows.

Disabling compositor (picom) didn’t resolve the issue. Anyone else experiencing this?

System Logs:

  Kernel: 5.15.74-1-lts arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
    Desktop: i3 v: 4.21 dm: LightDM Distro: EndeavourOS base: Arch Linux
  Type: Laptop System: LENOVO product: 20EFCTO1WW v: ThinkPad W541
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: LENOVO model: 20EFCTO1WW v: SDK0E50512 STD
    serial: <superuser required> UEFI: LENOVO v: GNET94WW (2.42 )
    date: 06/02/2021
  ID-1: BAT0 charge: 17.8 Wh (96.2%) condition: 18.5/99.5 Wh (18.6%)
    volts: 11.9 min: 10.8 model: SANYO 45N1779 serial: <filter>
    status: not charging
  Info: quad core model: Intel Core i7-4810MQ bits: 64 type: MT MCP
    arch: Haswell rev: 3 cache: L1: 256 KiB L2: 1024 KiB L3: 6 MiB
  Speed (MHz): avg: 3675 high: 3775 min/max: 800/3800 cores: 1: 3596
    2: 3775 3: 3692 4: 3769 5: 3621 6: 3651 7: 3648 8: 3652 bogomips: 44699
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3
  Device-1: Intel 4th Gen Core Processor Integrated Graphics vendor: Lenovo
    driver: i915 v: kernel arch: Gen-5.75 ports: active: HDMI-A-1,VGA-1,eDP-1
    empty: DP-1,DP-2,HDMI-A-2 bus-ID: 00:02.0 chip-ID: 8086:0416
  Device-2: NVIDIA GK106GLM [Quadro K2100M] vendor: Lenovo driver: nouveau
    v: kernel arch: Kepler pcie: speed: 2.5 GT/s lanes: 16 ports: active: none
    empty: DVI-D-1,eDP-2 bus-ID: 01:00.0 chip-ID: 10de:11fc temp: 51.0 C
  Device-3: Chicony Integrated Camera type: USB driver: uvcvideo
    bus-ID: 3-12:3 chip-ID: 04f2:b39a
  Display: x11 server: X.Org v: 21.1.4 compositor: Picom v: git-7e568
    driver: X: loaded: intel,modesetting alternate: fbdev,nouveau,nv,vesa
    dri: i965,nouveau gpu: i915 display-ID: :0 screens: 1
  Screen-1: 0 s-res: 3840x2160 s-dpi: 96
  Monitor-1: HDMI-A-1 mapped: HDMI1 pos: top-right model: Acer KA222Q
    res: 1920x1080 dpi: 102 diag: 546mm (21.5")
  Monitor-2: VGA-1 mapped: VGA1 pos: primary,top-left model: Acer KA222Q
    res: 1920x1080 dpi: 102 diag: 546mm (21.5")
  Monitor-3: eDP-1 mapped: eDP1 pos: primary,bottom-l model: ChiMei InnoLux
    0x15c3 res: 1920x1080 dpi: 143 diag: 394mm (15.5")
  OpenGL: renderer: Mesa Intel HD Graphics 4600 (HSW GT2) v: 4.6 Mesa
    22.2.1 direct render: Yes
  Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio
    vendor: Lenovo driver: snd_hda_intel v: kernel bus-ID: 00:03.0
    chip-ID: 8086:0c0c
  Device-2: Intel 8 Series/C220 Series High Definition Audio vendor: Lenovo
    driver: snd_hda_intel v: kernel bus-ID: 00:1b.0 chip-ID: 8086:8c20
  Device-3: NVIDIA GK106 HDMI Audio vendor: Lenovo driver: snd_hda_intel
    v: kernel pcie: speed: 2.5 GT/s lanes: 16 bus-ID: 01:00.1
    chip-ID: 10de:0e0b
  Sound API: ALSA v: k5.15.74-1-lts running: yes
  Sound Server-1: PulseAudio v: 16.1 running: no
  Sound Server-2: PipeWire v: 0.3.59 running: yes
  Device-1: Intel Ethernet I217-LM vendor: Lenovo driver: e1000e v: kernel
    port: 5080 bus-ID: 00:19.0 chip-ID: 8086:153a
  IF: enp0s25 state: down mac: <filter>
  Device-2: Intel Wireless 7260 driver: iwlwifi v: kernel pcie:
    speed: 2.5 GT/s lanes: 1 bus-ID: 03:00.0 chip-ID: 8086:08b2
  IF: wlan0 state: up mac: <filter>
  Device-1: Intel Bluetooth wireless interface type: USB driver: btusb v: 0.8
    bus-ID: 3-11:2 chip-ID: 8087:07dc
  Report: rfkill ID: hci0 rfk-id: 1 state: up address: see --recommends
  Local Storage: total: 465.76 GiB used: 33.57 GiB (7.2%)
  ID-1: /dev/sda vendor: Samsung model: SSD 870 EVO 500GB size: 465.76 GiB
    speed: 6.0 Gb/s serial: <filter>
  ID-1: / size: 195.8 GiB used: 8.93 GiB (4.6%) fs: ext4 dev: /dev/sda2
  ID-2: /boot/efi size: 511 MiB used: 312 KiB (0.1%) fs: vfat
    dev: /dev/sda1
  ID-3: /home size: 254.86 GiB used: 24.65 GiB (9.7%) fs: ext4
    dev: /dev/sda3
  ID-1: swap-1 type: partition size: 5.26 GiB used: 0 KiB (0.0%) priority: -2
    dev: /dev/sda4
  System Temperatures: cpu: 55.0 C mobo: N/A gpu: nouveau temp: 51.0 C
  Fan Speeds (RPM): fan-1: 2338
  Processes: 222 Uptime: 2h 40m Memory: 31.23 GiB used: 2.93 GiB (9.4%)
  Init: systemd v: 251 default: graphical Compilers: gcc: 12.2.0 Packages:
  pm: pacman pkgs: 1037 Shell: Bash v: 5.1.16 running-in: alacritty
  inxi: 3.3.22



Thanks for the reply. I just updated the initial post with hardware information. Will that suffice? Or is there anything else I need to include?

looks like optimus enabled notebook?

You do run on intel without switching to nvidia?

I didn’t install nvidia drivers because of this.

Should I switch to nvidia?

you do not have to use Nvidia if you do not need that power.
Your issue could be caused by intel GPU need setup.

If you would share a boot log i could have a look if i see something suspected…

Please try again and use pastebin.

journalct -b -0 | eos-sendlog or the GUI tool we have from welcome app…


Oops. My apologies. Here you go:

You probably need to blacklist nouveau if you are using only the Intel graphics.

Also, either uninstalling or installing package xf86-video-intel may help.


Thanks for the reply, @manuel

xf860-video-intel is currently installed on my system whilenouveau is not.

Could you explain why this is the case?

nouveau is a kernel module so it will be there if you don’t blacklist it.

Intel driver package is usually needed in older machines with Intel graphics.
Newer machines may or may not need it, and testing is the only way to see the result.
Having it when not needed may cause display problems.

For the record I was not suggesting to not install your driver if you have an Nvidia hybrid card already, but rather avoid getting hardware with Nvidia hybrid cards because they can be a pain at times. Like now :innocent:

I actually would get the driver if it were my system. The Nvidia should only switch on when you connect an external monitor or if you use Optimus or similar to switch it on the laptop screen. But will drain more battery.

Alternative is to switch to dedicated GPU in bios and blacklist nouveau once you installed the Nvidia driver. It’s also what Lenovo recommends in some guide to install Linux on their hardware. If you don’t worry about battery life perhaps that may even solve your problem and you should get much better graphics in general…

Edit: I would use a stepwise approach. First install and check Nvidia by connecting external screen. Then either install Optimus or alternatively switch to only dedicated GPU only. If you need help there are a couple of posts in the forum and also discover eos articles that can be referred to if you decide to go that route.

It’s also fine to use no Nvidia if you don’t want/need to. But I couldn’t connect an external monitor without it.

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Thanks for taking the time to response. I’m very new to this, so I found it hard to follow the suggestions given. So from the system logs, my system has two graphics devices.

I’m guessing the device that is currently in use is the Intel graphics because the list of my external monitors are listed under the active section of Device 1 whereas the active list under the Nvidia device is empty?

What is Optimus? I googled it, but I still don’t have a good idea of what it is. From what I understand, it is a piece of software that optimizes the GPU. What do I need to do to use optimus? Do I install bbswitch?

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correct, by default the Nivida will be off, and your computer will use intel. How to install optimus is nicely described in the EOS article posted by @joekamprad . But in a nutshell, if you want to switch between your intel/nvidia back and forth, you will most likely have to use optimus (I would not use bumblebee…).

How to install the proprietary nvidia driver, if not already done so during eos install, can be found here

edit: there is also another method called “prime” but didn’t mean to confuse you. Arch wiki has all the options, and there are more EOS articles about that too!

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As it turned out, @manuel was right. xf86-video-intel was the culprit. The glitches disappeared after I uninstalled that particular package.

Having said that, I appreciate everyone (@joekamprad and @Zircon34 in particular) who has taken the time to reply to this post, and also those who have posted many useful and educational links to guide me.

Thank you.


yea as wiki say… nice to see it is working for you now!


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