Very bad OpenGL performance on i915
ismail at uludag.org.tr
Tue Sep 27 06:14:25 PDT 2005
On Tuesday 27 September 2005 15:37, Alan Hourihane wrote:
> On Tue, 2005-09-27 at 15:11 +0300, İsmail Dönmez wrote:
> > Hi,
> > I installed latest xorg from cvs yesterday and loaded drm,dri,i915 etc
> > but glxgears gives me only ~260 fps which seems to be really low for a
> > card with a 128mb RAM.
> > Here is the lspci output :
> > 0000:00:02.0 VGA compatible controller: Intel Corporation Mobile
> > 915GM/GMS/910GML Express Graphics Controller (rev 03) (prog-if 00 [VGA])
> > Subsystem: Sony Corporation: Unknown device 81b8
> > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> > ParErr- Stepping- SERR- FastB2B-
> > Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
> > <TAbort- <MAbort- >SERR- <PERR-
> > Latency: 0
> > Interrupt: pin A routed to IRQ 16
> > Region 0: Memory at b0080000 (32-bit, non-prefetchable)
> > Region 1: I/O ports at 1800 [size=8]
> > Region 2: Memory at c0000000 (32-bit, prefetchable) [size=256M]
> > Region 3: Memory at b0040000 (32-bit, non-prefetchable)
> > [size=256K] Capabilities: [d0] Power Management version 2
> > Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
> > PME(D0-,D1-,D2-,D3hot-,D3cold-)
> > Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> > Any idea what might be wrong? Also I can't get screen to refresh > 60 Hz.
> > Is that expected?
> There's two things to check.
> 1. /var/log/Xorg.0.log for any information relating to DRI.
> 2. Run glxinfo and see if you are getting 'direct rendering'.
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