问题原因是待机时内核的USB模块停止和重新载入出现问题
修改待机脚本
# sudo vi /etc/default/acpi-support
找到如下内容,并将上面查到内核模块添加进MODULES 待机选项,如红字所示
# Add modules to this list to have them removed before suspend and reloaded
# on resume. An example would be MODULES="em8300 yenta_socket"
#
# Note that network cards and USB controllers will automatically be unloaded
# unless they're listed in MODULES_WHITELIST
MODULES="usbhid ehci_hcd ohci_hcd"
# Add modules to this list to leave them in the kernel over suspend/resume
MODULES_WHITELIST=""
保存退出,问题解决。