使用cryptsetup时笔记本电脑在请求密码前进入睡眠状态

Hey there, I get how frustrating this must be—having to retry booting 5-6 times just to reach the encryption password prompt is no fun. Let’s walk through some targeted fixes tailored to your Razer hardware and Ubuntu 16.04 setup:

1. Tweak BIOS/UEFI Settings First #

Razer laptops often have finicky power management defaults that clash with Linux encryption workflows:

• Boot into BIOS (press F2 right when you turn on the laptop)
• Disable Fast Boot and Wake Timers under the Power Management section
• Double-check that Secure Boot is turned off—Ubuntu 16.04’s encryption stack can have compatibility issues with enabled Secure Boot

2. Upgrade to a Newer Kernel (HWE Stack) #

Ubuntu 16.04’s default kernel is pretty outdated, and Razer’s hardware needs better driver support for stable power management:
Run these commands in a terminal to install the Hardware Enablement (HWE) kernel:

sudo apt update && sudo apt upgrade -y
sudo apt install linux-generic-hwe-16.04

Reboot after installation completes—this kernel includes fixes for many laptop-specific power bugs.

3. Fix Cryptinitramfs Resume Configuration #

Sometimes leftover sleep/resume settings can trigger unintended sleep during encryption unlock:

• Open the resume config file with nano:

  sudo nano /etc/initramfs-tools/conf.d/resume
  

• If you see a line like RESUME=UUID=xxxx, comment it out by adding a # at the start
• Update the initramfs to apply changes:

  sudo update-initramfs -u
  

4. Dig Into Logs to Find the Root Cause #

When you finally get a successful boot, check the previous boot’s logs to see what triggered the sleep:

sudo journalctl -b -1 | grep -i sleep

Look for entries mentioning "systemd-sleep" or hardware-specific sleep triggers—this can help pinpoint if a specific component is misbehaving.

5. Disable Problematic Power Management Kernel Parameters #

If all else fails, try adding kernel parameters to disable buggy ACPI features:

• Edit the GRUB config:

  sudo nano /etc/default/grub
  

• Find the line starting with GRUB_CMDLINE_LINUX_DEFAULT and add either acpi=off or noapic (note: acpi=off might disable some hardware like your touchpad, so test one at a time):
  Example:

  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off"
  

• Update GRUB and reboot:

  sudo update-grub
  

Hopefully one of these steps fixes the random sleep issue. If you find specific error logs from the journalctl command, feel free to share them for more targeted help!

内容的提问来源于stack exchange，提问作者Thomas Grivet