我有一台运行 Ubuntu 16.04 LTS 的笔记本电脑，今天我从 01.org 安装了适用于 Linux 的英特尔显卡，但重启系统后，我无法使用FN + F8/FN + F9
*-display UNCLAIMED
description: VGA compatible controller
product: 4th Gen Core Processor Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 06
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list
configuration: latency=0
resources: memory:f6c00000-f6ffffff memory:e0000000-efffffff ioport:f000(size=64)
filename: /lib/modules/4.4.0-59-generic/updates/dkms/i915.ko
license: GPL and additional rights
description: Intel Graphics
author: Intel Corporation
author: Tungsten Graphics, Inc.
在 GRUB 配置中我做了一些修改：
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_pstate=disable video.use_native_backlight=1"
但仍然不起作用，有什么想法吗？
谢谢