Ubuntu 20.04.1 LTS GNOME 3.36.3 periodic mouse and keyboard lag

Question

Just installed fresh Ubuntu on a fresh machine. I'm very happy except a periodic lag on the mouse. It seems everything else works great even during the lag. The mouse is wireless and came along with a keyboard (MS). I have intel i5 processor and intel UHD graphics. I checked the log and the only shady thing I see is already mentioned (but remains unsolved) here:

https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1857392

I also made sure to update everything via Software & Update. I'm hooked up to the front mic and aux jacks with headphones (2 to 1 aux).

Any help would be appreciated.

RZ

Edit: @heynnema Both are Microsoft and wireless. Here the output you asked for in the order stated:

Edit 2: @heynnema

# swap was on /dev/sda3 during installation
UUID=9cd65f59-278f-416d-aede-189ce6ff4086 none            swap    sw              0       0
total 12
drwx------  2 reuven reuven 4096 Oct  8 03:08 .
drwx------ 23 reuven reuven 4096 Oct  8 00:45 ..
-rw-rw-r--  1 reuven reuven 2476 Oct  8 03:08 application_state
-rw-rw-r--  1 reuven reuven    0 Oct  5 14:47 gnome-overrides-migrated

Edit 3: @heynnema

>>> sudo dmicode -s bios-version
1401
>>> sudo dmicode -t 2
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.1.1 present.
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
    Manufacturer: ASUSTeK COMPUTER INC.
    Product Name: PRIME H310M-E R2.0
    Version: Rev X.0x
    Serial Number: 200265349501746
    Asset Tag: Default string
    Features:
        Board is a hosting board
        Board is replaceable
    Location In Chassis: Default string
    Chassis Handle: 0x0003
    Type: Motherboard
    Contained Object Handles: 0
>>> sudo dmicode -t baseboard
dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.1.1 present.
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
    Manufacturer: ASUSTeK COMPUTER INC.
    Product Name: PRIME H310M-E R2.0
    Version: Rev X.0x
    Serial Number: 200265349501746
    Asset Tag: Default string
    Features:
        Board is a hosting board
        Board is replaceable
    Location In Chassis: Default string
    Chassis Handle: 0x0003
    Type: Motherboard
    Contained Object Handles: 0
Handle 0x001D, DMI type 10, 6 bytes
On Board Device Information
    Type: Video
    Status: Enabled
    Description:    To Be Filled By O.E.M.
Handle 0x004A, DMI type 41, 11 bytes
Onboard Device
    Reference Designation: Onboard - Other
    Type: Other
    Status: Enabled
    Type Instance: 1
    Bus Address: 0000:00:00.0
Handle 0x004B, DMI type 41, 11 bytes
Onboard Device
    Reference Designation: Onboard - Video
    Type: Video
    Status: Enabled
    Type Instance: 1
    Bus Address: 0000:00:02.0
Handle 0x004C, DMI type 41, 11 bytes
Onboard Device
    Reference Designation: Onboard - Other
    Type: Other
    Status: Enabled
    Type Instance: 2
    Bus Address: 0000:00:14.0
Handle 0x004D, DMI type 41, 11 bytes
Onboard Device
    Reference Designation: Onboard - Other
    Type: Other
    Status: Enabled
    Type Instance: 3
    Bus Address: 0000:00:16.0
Handle 0x004E, DMI type 41, 11 bytes
Onboard Device
    Reference Designation: Onboard - SATA
    Type: SATA Controller
    Status: Enabled
    Type Instance: 1
    Bus Address: 0000:00:17.0
Handle 0x004F, DMI type 41, 11 bytes
Onboard Device
    Reference Designation: Onboard - Other
    Type: Other
    Status: Enabled
    Type Instance: 4
    Bus Address: 0000:00:1f.0
Handle 0x0050, DMI type 41, 11 bytes
Onboard Device
    Reference Designation: Onboard - Other
    Type: Other
    Status: Enabled
    Type Instance: 5
    Bus Address: 0000:00:1f.2
Handle 0x0051, DMI type 41, 11 bytes
Onboard Device
    Reference Designation: Onboard - Sound
    Type: Sound
    Status: Enabled
    Type Instance: 1
    Bus Address: 0000:00:1f.3
Handle 0x0052, DMI type 41, 11 bytes
Onboard Device
    Reference Designation: Onboard - Other
    Type: Other
    Status: Enabled

Edit your question and show me free -h and sysctl vm.swappiness and ls -al ~/.local/share/gnome-shell/extensions and ls -al /usr/share/gnome-shell/extensions. What brand mouse/keyboard? Start comments to me with @heynnema or I'll miss them. — heynnema, Oct 07 '20 at 21:09
Thanks for the info! That looks almost normal. Why such a large swap? Show me grep -i swap /etc/fstab and redo ls -al ~/.local/share/gnome-shell/extensions for me. Do you have any other USB devices connected? FYI: When adding textual info to your question, it's better to copy/paste the info, select the pasted info, then click on the {} icon to format it into human-readable. — heynnema, Oct 07 '20 at 22:43
Do you have bluetooth? Is it enabled? Do you have any bluetooth devices paired? — heynnema, Oct 07 '20 at 23:43
@heynnema Hello again :) Thanks for teaching me how to post code properly. No I actually don't have anything hooked up apart from the single usb dongle that came with the keyboard-mouse set. I dont have bluethooth, I checked in the settings menu and it confirms that, which also makes sense since I bought a simple basic desktop pc which to my understanding usually dont come with BT unless specifically asked for. — Rubenz, Oct 08 '20 at 00:19
@heynnema Oh right sorry. Well, I'm really new to all this and I had severe difficulties installing ubuntu properly. Especially since im trying to get a dual boot eventually with win 10. Currently I have only this Ubuntu 20.04.1 on this machine. While partitioning I had to choose a swap partition and I confess I didnt really know what that means, I was just so frustrated with the fatal grub errors in the end of the install that I just left it as is after the last successful install. — Rubenz, Oct 08 '20 at 07:17
@heynnema I now see that this is an overflow space for my ram, which means that i did some stupid partitioning. Is that really bad? should I repartition via Gparted? — Rubenz, Oct 08 '20 at 07:17
Swap really isn't overflow for RAM. Swap is used by the system to manage memory by swapping least recently used pages of memory in/out to swap... thereby making for more room in memory for other applications or program code. Edit your question and show me sudo dmidecode -s bios-version and tell me the EXACT make/model of your computer or motherboard. Thanks. — heynnema, Oct 08 '20 at 13:59
Yes, your swap is way excessive. Best to convert to using a 4G /swapfile. Then you can use gparted to add that 37G back to your Ubuntu partitions. I can show you how to do that, if you like. Show me a screenshot of gparted. — heynnema, Oct 08 '20 at 14:01
@heynnema Thank you so so much for your great help! So, I did what you asked and to figure out what kind of a MB I have I found the above terminal commands. Is that it or should I open the PC case and look for something? — Rubenz, Oct 08 '20 at 16:47

heynnema · Accepted Answer · 2020-10-08T20:19:54.350

BIOS

ASUS PRIME H310M-E R2.0

You have BIOS revision 1401.

There's a newer BIOS available, version 1605, dated 8/11/2020, and can be downloaded here.

Note: Confirm that I have the correct web page for your model #.

Note: Have good backups before updating the BIOS.

SWAP

Your swap is excessive at 37G. Let's change from a 37G swap partition, to a 4G /swapfile.

In the terminal...

sudo swapoff -a           # turn off swap

To edit /etc/fstab, use sudo -H gedit /etc/fstab or sudo pico /etc/fstab

Comment out the following line:

UUID=9cd65f59-278f-416d-aede-189ce6ff4086 none   swap    sw   0   0

Save the edit and quit the editor.

Note: Incorrect use of the dd command can cause data loss. Suggest copy/paste.

sudo dd if=/dev/zero of=/swapfile bs=1M count=4096
sudo chmod 600 /swapfile  # set proper file protections
sudo mkswap /swapfile     # init /swapfile
sudo swapon /swapfile     # turn on swap
free -h                   # confirm 8G RAM and 4G swap

Confirm this /swapfile line at the end of /etc/fstab... and confirm no other “swap” lines...

To edit, use sudo -H gedit /etc/fstab or sudo pico /etc/fstab

/swapfile  none  swap  sw  0  0

Save the file and quit the editor.

reboot                    # reboot and verify operation

Note: The 37G swap partition (/dev/sda3) is no longer used, may be deleted, and the unallocated space may be added back to your Ubuntu partition using gparted.

Ubuntu 20.04.1 LTS GNOME 3.36.3 periodic mouse and keyboard lag

dmidecode 3.2

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