Ttgjyuk

I experience mouse lag although the graphic card is recognized by the os. (I already had it on 15.10 and upgraded to 16.04). The mouse lag is not firefox or browser dependent. Is there anything I can do about it, without doing a clean install of my ubuntu system?

nuc@nuc:~$ sudo lshw -c video
[sudo] password for nuc: 
 *-display 
 description: VGA compatible controller
 product: Haswell-ULT Integrated Graphics Controller
 vendor: Intel Corporation
 physical id: 2
 bus info: pci@0000:00:02.0
 version: 09
 width: 64 bits
 clock: 33MHz
 capabilities: msi pm vga_controller bus_master cap_list rom
 configuration: driver=i915 latency=0
 resources: irq:45 memory:f7800000-f7bfffff memory:e0000000-efffffff ioport:f000(size=64)

I found this solution! Credit goes to the original poster.

https://superuser.com/questions/528727/how-do-i-solve-periodic-mouse-lag-on-linux-mint-mate

To save some peeps the trouble of going to the link here are the specific instructions I followed (copy and paste each line on a terminal):

sudo su -
modprobe drm_kms_helper
echo N> /sys/module/drm_kms_helper/parameters/poll
echo "drm_kms_helper" >> /etc/modprobe.d/local.conf
echo 'drm_kms_helper' >> /etc/modules-load.d/local.conf
echo "options drm_kms_helper poll=N" >> /etc/modprobe.d/local.conf

This might be irrelevant but I was also having my mouse pointer real slow all of sudden in properly working ubuntu 18.04.Googled like crazy for about an hour, tried restarting for few times, checked RAM and CPU usage it was not even half, try unplugging the mouse for couple of times, went through the mouse settings, tried above commands did not work and finally found out the zoom was switched on. Switched it off and worked like a charm.

The option can be found in settings > universal access.

enter image description here

Well since developers change menues every now and then, there is no settings > universal access or "zoom switch" anymore. Slow Mouse... kind of Ubuntu Meditation Camp?