Power-manager crashes in Ubuntu Mate 16.04 LTS

[Ritman]

This happens often in my pc, i tried to reinstall the package or install alternatives ones but the problems persists.

Any suggestions?

[wolfman]

Hi @Ritman,

try running a full system update if you haven’t already done so

Ubuntu Mate Update Guide

These are my own setting preferences, use at your own risk!. AN IMPORTANT NOTE FOR LINUX BEGINNERS. WHEN YOU ARE IN RECOVERY MODE, THE KEYBOARD DEFAULTS TO US ENGLISH, IF YOU HAVE ANY OTHER LANGUAGE KEYBOARD OTHER THAN US ENGLISH, WHEN YOU TYPE "Y" (FOR "YES"), IT MIGHT SHOW UP AS A DIFFERENT LETTER, ON MY KEYBOARD I MUST PRESS THE "Z" KEY WHICH EQUATES TO "Y" AS I HAVE A GERMAN KEYBOARD, JUST PRESS "BACKSPACE" AND HIT A DIFFERENT KEY UNTIL YOU SEE THE "Y" SHOW UP!. Click on "Subscri…

[Ritman]

i was unable to update because it shows me an error with some programs ppa (google earth and QGis), i disable this ppa in “Softwares and Updates” and now it works!
Thanks!

[Ritman]

try running a full system update if you haven’t already done so

i have restarted my computer again and the problem persist

[wolfman]

Try changing your software sources download location first (per the update guide) and then run the following terminal command:

sudo apt-get update && sudo apt-get remove mate-power-manager && sudo apt-get install mate-power-manager

[Ritman]

sudo apt-get update && sudo apt-get remove mate-power-manager && sudo apt-get install mate-power-manager

after reinstall, the problem's gone for a while (for 2 or 3 boots) then appears again.

[anon42388993]

That crash report is being generated by apport.

https://wiki.ubuntu.com/Apport

It is possible thats its a false positive and apport just needs to be reset. So in terminal…

sudo rm /var/crash/*

[Ritman]

i don’t think that is a false positive, because when it happens i cant see my battery status and i cant change the brightness.

[anon42388993]

when it happens i cant see my battery status and i cant change the brightness.

Maybe after suspend?

Could you post your specs? In terminal…

inxi -b

[Ritman]

i almost never suspend my pc

System: Host: Felsico Kernel: 4.4.0-22-generic x86_64 (64 bit) Desktop: MATE 1.12.1
Distro: Ubuntu 16.04 xenial
Machine: System: Acer (portable) product: Aspire V3-371 v: V1.29
Mobo: Acer model: Aspire V3-371 v: V1.29 Bios: Insyde v: V1.29 date: 09/03/2015
CPU: Dual core Intel Core i5-4210U (-HT-MCP-) speed/max: 888/2700 MHz
Graphics: Card: Intel Haswell-ULT Integrated Graphics Controller
Display Server: X.Org 1.18.3 drivers: intel (unloaded: fbdev,vesa) Resolution: [email protected]
GLX Renderer: Mesa DRI Intel Haswell Mobile GLX Version: 3.0 Mesa 11.2.0
Network: Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169
Card-2: Qualcomm Atheros AR9462 Wireless Network Adapter driver: ath9k
Drives: HDD Total Size: 240.1GB (12.9% used)
Info: Processes: 190 Uptime: 25 min Memory: 1164.4/3874.7MB Client: Shell (bash) inxi: 2.2.35

[Ritman]

Drives: HDD Total Size: 240.1GB (12.9% used)

also, i use a SSD not a HDD

[anon42388993]

Try adding acpi_backlight to your boot settings.

First make a copy of the file your about to edit.

sudo cp /etc/default/grub /etc/default/grub.original

Now open up your text editor

gksudo pluma /etc/default/grub

And change this line

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

To read

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"

Run like that for a while, see if it helps.

EDIT
I forgot, you need to update grub

sudo update-grub