I found in my Xorg.0.log the following: ... (II) do I need RAC? No, I don't. (II) resource ranges after preInit: [0] 0 0 0xfe9f0000 - 0xfe9fffff (0x10000) MX[B] [1] 0 0 0xf0000000 - 0xf7ffffff (0x8000000) MX[B] ... [29] -1 0 0x0000c000 - 0x0000c0ff (0x100) IX[B](B) [30] 0 0 0x000003b0 - 0x000003bb (0xc) IS[B](OprU) [31] 0 0 0x000003c0 - 0x000003df (0x20) IS[B](OprU) (WW) RADEON(0): Failed to set up write-combining range (0xf0000000,0x8000000) (II) RADEON(0): Dynamic Clock Scaling Disabled drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: open result is -1, (Unknown error 999) drmOpenDevice: open result is -1, (Unknown error 999) drmOpenDevice: Open failed drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: open result is -1, (Unknown error 999) drmOpenDevice: open result is -1, (Unknown error 999) drmOpenDevice: Open failed [drm] failed to load kernel module "radeon" (II) RADEON(0): [drm] drmOpen failed (EE) RADEON(0): [dri] DRIScreenInit failed. Disabling DRI. (II) RADEON(0): Memory manager initialized to (0,0) (1280,8191) (II) RADEON(0): Reserved area from (0,1024) to (1280,1026) (II) RADEON(0): Largest offscreen area available: 1280 x 7165 (II) RADEON(0): Render acceleration disabled (II) RADEON(0): Using XFree86 Acceleration Architecture (XAA) ... Where I should obtain that module? Is ts Xorg's one? Or I forgot to compile it in my kernel? If so, where in menu config I check the proper item? Also, I've found the following on my system: /usr/X11R6/lib/modules/drivers/radeon_drv.o /usr/X11R6/lib/modules/dri/radeon_dri.so Is there the one?! Big thanks in advance! -- Best regards, Strong.