[dywang@dywmsi Downloads]$ ll linux-firmware-master.zip -rw-rw-r--. 1 dywang dywang 187713770 Jun 11 11:16 linux-firmware-master.zip [dywang@dywmsi Downloads]$ unzip linux-firmware-master
[root@dywmsi ~]# cp -a /home/dywang/Downloads/linux-firmware-master/i915 /lib/firmware/
[root@dywmsi ~]# uname -r 4.18.20-1.el6.elrepo.x86_64
[root@dywmsi ~]# grep 4.18.20 /boot/efi/EFI/BOOT/BOOTX64.conf title Red Hat Linux (4.18.20-1.el6.elrepo.x86_64) kernel /vmlinuz-4.18.20-1.el6.elrepo.x86_64 ....... i915.modeset=1 acpi_osi=linux i915.alpha_support=Y initrd /initramfs-4.18.20-1.el6.elrepo.x86_64.img
[root@dywmsi ~]# dracut -f
[root@dywmsi ~]# reboot