Install this version:
emerge -a =x11-drivers/xf86-video-ast-9999
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =x11-drivers/xf86-video-ast-9999
Or alternatively:
emerge --autounmask-write -a =x11-drivers/xf86-video-ast-9999
# Copyright 1999-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit xlibre
DESCRIPTION="XLibre driver for ASpeedTech cards"
HOMEPAGE="https://github.com/X11Libre/xf86-video-ast"
if [[ ${PV} != 9999* ]]; then
KEYWORDS="~amd64 ~loong ~ppc ~ppc64 ~x86"
fi