New
#1
Do not update to K3156421 if you are using laptop
Hi,
After updated to the latest KB3156421 it breaks a lot of stuff for my Dell XPS 15 (9550, FHD, 84W, i7) problems are:
1) Noticeable slow down / lag in using Chrome
2) Poor Battery - it uses more battery and running a few degree C hotter
3) Wake up from sleep issue- it only affect when you are using battery, it will not wake up from sleep, it shows black screen and after 10 or less seconds it reboots
After many install / reinstall drivers I decided to try uninstall the update as I remember those problem wasn't there before the update so I gave it a try and voila all the problem mentioned are solved.
p.s. apparently it only affect laptop using battery, DOES NOT affect the A/C power.
Cheers!