Solution to the Problem of failed startup after hibernation in Ubuntu 14.04

Solution to the Problem of failed startup after hibernation in Ubuntu 14.04

Introduction: After the Ubuntu system is upgraded to 14.04, after the system goes to sleep, it cannot be restarted and the system crashes. What went wrong?

1. Problem Introduction

After the Ubuntu system is upgraded to 14.04, you can use the system Power to set the sleep time. After the system goes to sleep, the system cannot start. You can only enter the system through cold start.

2. Problem Analysis

First, analyze the problem. After the system goes to sleep, it enters the dead State and cannot respond to keyboard and mouse events. However, the keyboard itself can switch the status, for example, it can switch the network. However, the content on the display screen cannot be updated.

Upgrade to the latest version. The problem persists.

I checked the network and confirmed whether it was related to the model of the notebook I was using. Because in version 13. x, the sleep function is normal.

3. Confirm the problem

Some people mentioned on the Internet that it is a defect in the graphics card driver itself. Because Ubuntu is an open-source Linux system, there may be some problems or compatibility with drivers not provided by the manufacturer or provided.

Therefore, switch the video card:

Note:

1. After the switch test is started, the current driver is the most suitable driver for my machine.

2. Some articles on the Internet said that the open-source driver is good and the test results cannot solve the problem of crashes.

4. Write at the end

Since Ubuntu has disabled the Hibernate sleep function from the system starting from 122.x, You need to enable the sleep function on your own. It is reported that the sleep function is disabled by default because the system cannot properly Save the application status.

Sudo pm-hibernate ------ test the sleep function and enable the system to sleep

5. Result Analysis

The problem is that the system cannot be updated due to a video card drive defect and the system crashes.

Download, install, and configure Ubuntu 14.04

Ubuntu 14.04 system:

Ubuntu 14.04 text tutorial on hard drive installation in Windows 7