Hello, I want to thank you so much, i think that the problem is resolved now (yesterday i had an upgrade and i did it) and for the now the power consumption back like before, i really appreciate what you did. i use ubuntu for 3 years now and i'm happy to be with this community (open source community). I'm really happy, thank you again,and i will test the battery for the a few days to be sure that everything is alright. cordially, Jedidi Iyadh *Full-stack part-time developer at Spark IT* [image: Logo] T: +216 52856207 Ex-Material Manager at CLLFST Student Engineer in Computer Science - Faculty of Sciences of Tunis [image: LinkedIn icon] Le mer. 18 sept. 2019 à 11:16, Iyadh Jedidi