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I've just installed 20.04.2 LTS onto a new PC, but even on the highest setting the mouse speed is far too slow.

For reference I'm dual booting and had no problems with the mouse speed in Windows 10 so I don't think its the mouse. I've also tried another couple of mice but same issue. I've also tried plugging the mouse into different USB ports.

I've tried installing xkbset, but no amount of playing with the setting on this makes any difference e.g.

xkbset ma 50 20 20 30 300

I've also tried playing with the gsettings e.g.

gsettings set org.gnome.desktop.peripherals.mouse speed 1

But this was already set at 1 and makes no difference. I've also tried both 'adaptive' and 'default' accel-profiles, but no difference.

The only thing I can think of is its the 4k display (with 125% scaling) which is just too large for the mouse speed.

Any suggestions on how I can fix this would be very much appreciated! Many thanks in advance, Steve

SteveEdin
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3 Answers3

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I switched my USB mouse from USB 2.0 socket to USB 3.0 socket on the rear side of the motherboard and voila! it works normally now!! I was misunderstanding with other solutions like, zoom, DPI. I don't know why this works but it does.

Zanna
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dagalty takalty
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For 3m ergo mouse, the switch from USB 3.0 to USB 2.0 did help but still was not enough.

In my xinput settings for the device:

xinput --list-props "Forward USB Optical Mouse"

I found:

Device 'Forward USB Optical Mouse':
    Device Enabled (188):   1
    Coordinate Transformation Matrix (190): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    ...etc

I changed this temporarily to test:

xinput --set-prop "Forward USB Optical Mouse" "Coordinate Transformation Matrix (190)" "3.000000, 0.000000, 0.000000, 0.000000, 3.000000, 0.000000, 0.000000, 0.000000, 3.000000"

Ie, multiplying each non-zero number by 3

Then when happy, I applied this to my existing fix for my 3m ergo mouse at:

nano /usr/share/X11/xorg.conf.d/42-middle-mouse-scrolling.conf

Which now contains the new final line:

Section "InputClass"
    Identifier "Middle Mouse Button Scrolling"
    MatchProduct "PixArt USB Optical Mouse|Forward USB Optical Mouse|Pixart Imaging, Inc. Optical Mouse"
    Option "MiddleEmulation" "on"
    Option "ScrollMethod" "button"
    Option "ScrollButton" "2"
    Option "Coordinate Transformation Matrix (190)" "3.000000, 0.000000, 0.000000, 0.000000, 3.000000, 0.000000, 0.000000, 0.000000, 3.000000"
EndSection

Note that the Match Product contains a number of variations of the 3m ergo mouse I have had over the years. Maybe it helps someone else, so leaving that in.

scott
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Your mouse may have a low DPI, perhaps even a 1:1 setting. Increasing the acceleration isn't going to help much.

The easiest solution is to get a mouse that has an adjustable DPI and turning it up to the point where it matches your needs/expectations. There are many available and they're not expensive.

KGIII
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