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; The ReadMe of ASPEED Graphics Linux DRM Driver Deb Package
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1.Description:
- Deb Package for ASPEED Graphics Linux DRM Driver
2.Support ASPEED Graphics Chipsets:
- AST1100/1300/1400/2000/2050/2100/2150/2200/2300/2400/2500/2510/2530/2600
3.Update Sequences:
- Debian:
  >> run "uname -r" to get the kernel version
  >> run "apt-get install linux-headers-$(uname -r)
  >> select proper deb and run "dpkg -i ast-drm-linux3.16.deb" for example
  +++ if it is failed due to dependency issue
  ++++ run "apt-get -f install" and try again
  >> reboot
- Ubuntu:
  >> run "uname -r" to get the kernel version
  >> disable "secure boot" in BIOS option
  >> select proper deb and run "dpkg -i ast-drm-linux4.15.deb" for example
  +++ if it is failed due to dependency issue
  ++++ run "apt-get -f install" and try again
  >> reboot
4.FAQ:
- show "ast: loading out-of-tree modules taints kernel."
  >> it is normal becasue the patch module driver did not include the signature of the linux distribution
- check the version of installed package
  >> run "dpkg -l | grep "ast-dkms"
- DRM driver may not be enable.
  >> check /etc/default/grub or /etc/sysconfig/grub. Is there parament, "nomodeset", in GRUB_LINUX.
  >> if yes, remove "nomodeset", then rebuild grub menu:
	RHEL:
		In legacy bios. Execute cmd “grub2-mkconfig -o /boot/grub2/grub.cfg“ to generate grub.cfg.
		In UEFI mode, Execute cmd “grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg“ to generate grub.cfg.
	Ubuntu:
		In legacy bios. Execute cmd “grub-mkconfig --output=/boot/grub/grub.cfg“ to generate grub.cfg.
		In UEFI mode Execute cmd “grub-mkconfig -o /boot/efi/EFI/ubuntu/grub.cfg“ to generate grub.cfg.
- Check AST DRM driver has been update.
  >> Get driver version, check the version same with courrent version.
  +++ dmesg | grep drm
- Get the connect status with physical monitor.
  >> Get the EDID from monitor.
  +++ cat /sys/class/drm/card0-VGA-1/edid | xxd
  >> Get the mode list from monitor.
  +++ cat /sys/class/drm/card0-VGA-1/modes
- Get information of current distribution.
  +++ cat /etc/os-release
5.Contact Window:
- aspeed_vga_support@aspeedtech.com