定位问题，切换到核显后发现一点问题也没有，基本确定是显卡驱动的问题

但是由于配置环境比较复杂，不想重新装N卡驱动，所以另寻方法

 

sudo gedit /etc/default/grub

 

修改前

# If you change this file, run 'update-grub' afterwards to update# /boot/grub/grub.cfg.# For full documentation of the options in this file, see:#   info -f grub -n 'Simple configuration'GRUB_DEFAULT=0GRUB_TIMEOUT_STYLE=hiddenGRUB_TIMEOUT=10GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"GRUB_CMDLINE_LINUX=""# Uncomment to enable BadRAM filtering, modify to suit your needs# This works with Linux (no patch required) and with any kernel that obtains# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"# Uncomment to disable graphical terminal (grub-pc only)#GRUB_TERMINAL=console# The resolution used on graphical terminal# note that you can use only modes which your graphic card supports via VBE# you can see them in real GRUB with the command `vbeinfo'#GRUB_GFXMODE=640x480# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux#GRUB_DISABLE_LINUX_UUID=true# Uncomment to disable generation of recovery mode menu entries#GRUB_DISABLE_RECOVERY="true"# Uncomment to get a beep at grub start#GRUB_INIT_TUNE="480 440 1"

把里面的  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

改成   #GRUB_CMDLINE_LINUX_DEFAULT="text"

实测没有效果

为了保证工作安全，忽略笔记本合盖的休眠

打开terminal：

sudo vim /etc/systemd/logind.conf

然后将其中的：

#HandleLidSwitch=suspend

改成：

HandleLidSwitch=ignore