Since I've an old notebook from 2008 with a SiS Mirage 3 IGP, I'm trying to get proper 2D/3D acceleration.I've managed to compile mesa-7.11.2 for Xorg 1.20.13 (Lubuntu 64-bit - 20.04 LTS)Since I've only a SIS_671 video card, I build only DRI drivers "sis swrast".I've already installed it with --prefix=/usr/local
~$ inxi -G Graphics: Device-1: Silicon Integrated Systems [SiS] 771/671 PCIE VGA Display Adapter driver: N/A Display: x11 server: X.Org 1.20.13 driver: sis resolution: 1280x800~60Hz OpenGL: renderer: Rasterizer v: 2.1 Mesa 7.11.2 (git-b8ce4de)But unfortunately DRI is still not working:
[drm] No valid IRQ number for device 1:0:0 (code -22)The problem is that the library sis_dri.so doesn't load at all, because even if I delete this lib, then I get the same error in Xorg log.
Is the xserver 1.20 not able to load DRI1 drivers or are there some tricks required?