fglrx: 100% CPU usage when using 3D

John-Paul Stewart and enabled, uses (The set that fglrx it's

use

Just to mention, I've been logged as root all the time so I guess it's not the permissions issue.

lsmod:

Module Size Used by viaagp 9472 1 fglrx 242428 7 agpgart 34344 2 viaagp

Now here's the grep -i fglrxvar-log-Xorg.0.log output. I'm not posting entire output (a bit too large) but I will if you think it's necessary.

Here's the part about fglrx DRM module:

(**) fglrx(0): NoDRI = NO (II) Loading sub module "fglrxdrm" (II) LoadModule: "fglrxdrm" (II) Loadingusr-X11R6-lib-modules-linux-libfglrxdrm.a (II) Module fglrxdrm: vendor="FireGL - ATI Technologies Inc." (II) fglrx(0): Depth moves disabled by default (**) fglrx(0): Capabilities: 0x00000000 (**) fglrx(0): cpuFlags: 0x4000000b (**) fglrx(0): cpuSpeedMHz: 0x0000034f (==) fglrx(0): OpenGL ClientDriverName: "fglrxdri.so" (**) fglrx(0): using built in AGPGART module: no (**) fglrx(0): UseFastTLS=0 (**) fglrx(0): BlockSignalsOnLock=1 (==) fglrx(0): EnablePrivateBackZ = NO (II) fglrx(0): UMM area: 0xc0501000 (size=0x07aff000) (II) fglrx(0): driver needs XFree86 version: 4.3.x (WW) fglrx(0): could not detect XFree86 version (querystatus=-3) (II) Loading extension ATIFGLRXDRI (II) fglrx(0): doing DRIScreenInit (II) fglrx(0): drm DRM interface version 1.0 (II) fglrx(0): drm created "fglrx" driver at busid "PCI:1:0:0" (II) fglrx(0): drm added 8192 byte SAREA at 0xd0899000 (II) fglrx(0): drm mapped SAREA 0xd0899000 to 0xb7d3a000 (II) fglrx(0): drm framebuffer handle = 0xc0000000 (II) fglrx(0): drm added 1 reserved context for kernel (II) fglrx(0): DRIScreenInit done (II) fglrx(0): Kernel Module Version Information: (II) fglrx(0): Name: fglrx (II) fglrx(0): Version: 8.10.19 (II) fglrx(0): Desc: ATI FireGL DRM kernel module (II) fglrx(0): Kernel Module version matches driver. (II) fglrx(0): Kernel Module Build Time Information: (II) fglrx(0): Build-Kernel UTSRELEASE: 2.6.10-ck7 (II) fglrx(0): Build-Kernel MODVERSIONS: no (II) fglrx(0): Build-Kernel SMP: no (II) fglrx(0): Build-Kernel PAGESIZE: 0x1000 (II) fglrx(0): drm register handle = 0xe3000000 (II) fglrx(0): agp Mode=0x1f000207 bridge: 0x1106-0x0305 (II) fglrx(0): agp AGP v1-2 disable mask 0x00000000 (II) fglrx(0): agp AGP v3 disable mask 0x00000000 (II) fglrx(0): agp enabling AGP with mode=0x1f000304 (II) fglrx(0): agp AGP protocoll is enabled for grafics board. (cmd=0 x1f000304) (II) fglrx(0): agp grafics chipset has AGP v2.0 (II) fglrx(0): drm ringbuffer size = 0x00100000 bytes (II) fglrx(0): drm DRM buffer queue setup: nbufs = 100 bufsize = 28672 (II) fglrx(0): drm texture shared area handle = 0xd8b01000 (II) fglrx(0): shared FSAAScale=1 (II) fglrx(0): DRI initialization successfull! (II) fglrx(0): FBADPhys: 0xc0000000 FBMappedSize: 0x00501000 (II) fglrx(0): FBMM initialized for area (0,0)-(1024,1281) (II) fglrx(0): FBMM auto alloc for area (0,0)-(1024,768) (front color buffer - buttumption) (==) fglrx(0): Backing store disabled (==) fglrx(0): Silken mouse enabled (II) fglrx(0): Using hardware cursor (scanline 768) (II) fglrx(0): Largest offscreen area available: 1024 x 505 (**) fglrx(0): DPMS enabled (II) fglrx(0): Using XFree86 Acceleration Architecture (XAA) (II) fglrx(0): Acceleration enabled (II) fglrx(0): X context handle = 0x00000001 (II) fglrx(0): DRI installation complete (II) fglrx(0): Direct rendering enabled (**) fglrx(0): Video overlay enabled on CRTC1 (II) Loading extension FGLRXEXTENSION

No errors at all in output, only one warning:

(WW) fglrx: No matching Device section for instance (BusID PCI:1:0:1) found

And about glxinfogrep renderer output: if there wasn't DRI enabled, renderer string would be MESA indirect or something like that. Also, too many OpenGL extensions are enabled for software rendering, including S3TC which is enabled by fglrx DRI exclusively.