Issue resolved with latest xf86-video-intel, for me anyways.

On Tuesday, June 9, 2015 at 10:52:10 PM UTC-7, Frankie Wild wrote:

I can also narrow down it happens only with the 4.x kernels. I am currently using 3.19.8_1 as this is the latest one before the issue happens. 

On Wednesday, June 10, 2015 at 1:40:33 AM UTC+3, Cassie B wrote:

I can confirm this as well.  Even went to do a reinstall since the lastest live iso does not have the issue, after updating invisible mouse issue is back.

On Friday, June 5, 2015 at 11:13:18 PM UTC-7, Frankie Wild wrote:

I have this odd situation with the latest kernel 4.0.4_1 where my mouse cursor doesn't show anymore. 

Previous kernels in between 3.18.1_2 and the latest one are failing to load graphics so I am using the first one mentioned for now.

Not too familiar with error logs so if anyone else faces it and can direct me which logs to pull out I will provide more information.

The machine is Thinkpad E530 with Optimus Intel HD 4000 and Nvidia GT635M.