GPU conflict on 16.04

I have my old desktop with a old GTX580 and K40. The GTX580 finally burnt out after many years of service. I replaced with an old C2095 since K40 does not have video output. But 16.04 just stopped allowing me to login afterward. I know that it has to be the video driver problem since…

X1 Yoga 3rd gen trackpad problem

X1 Yoga 3rd gen has quite a lot of sleeping problem. Supposedly the problem should be fixable as Lenovo has already implemented a fix for X1 Carbon 6th gen which essentially the same architecture. Anyway, even though the sleeping problem is fixable. One of my laptops (i5) works well after resume from sleep but my…

Unity workspace navigation

I am not sure since which version (maybe 16.04). The Unity shortcut for navigating workspace became quite stupid. Moving to the workspace on the left and right use ctrl-alt-left and ctrl-alt-right and moving to the workspace above and below use something ctrl-super-up and ctrl-super-down instead. In earlier versions, I think the default were ctrl-alt-up and…

My Mazda 6 experience

I guess I will write down the experience of my attempt in fixing a Mazda 6. I got it second hand more than a year ago. The engine has been rough since I bought it. I had a dealer to look at it just after I bought it. They mentioned that I should replace catalytic…

PDF-XChange and Docear

PDF-XChange is the best compatible pdf reader for Docear. In Linux, I couldn’t manage to open pdf PDF-XChange even I changed it to default pdf reader. But this thread solves this. Basically “…If you want you can test it for yourself. In Docear, please use “Tools and settings > Miscellaneous > Preferences” to open Docear’s…