Messages in this thread | | | Date | Thu, 26 Jan 2006 16:20:58 +0200 | From | Hai Zaar <> | Subject | vesa fb is slow on 2.6.15.1 |
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Dear list, I have framebuffer problems with vanilla 2.6.15.1 - its very slow. I'm using vesafb and booting with 'vga=795'. I've used 2.6.11.12 before, and running 'cat /usr/share/man/man1/bash.1' on tty1 took 12 seconds. Now, with 2.6.15.1 it takes 3 minutes.
Now the details of 2.6.15.1 system:
During boot I have: PCI: Failed to allocate mem resource #6:20000@f8000000 for 0000:40:00.0
relevant snip of the .config # # Graphics support # CONFIG_FB=y CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y CONFIG_FB_MODE_HELPERS=y CONFIG_FB_VESA=y CONFIG_VIDEO_SELECT=y
And as I've said, I boot with 'vga=795'. Graphics card is Nvidia Quadro FX1500 (PCIE).
# lspci -vv -s 40:00.0 40:00.0 VGA compatible controller: nVidia Corporation: Unknown device 00ce (rev a2) (prog-if 00 [VGA]) Subsystem: nVidia Corporation: Unknown device 0243 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 169 Region 0: Memory at f8000000 (32-bit, non-prefetchable) [size=16M] Region 1: Memory at f0000000 (64-bit, prefetchable) [size=128M] Region 3: Memory at f9000000 (64-bit, non-prefetchable) [size=16M] Capabilities: [60] 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- Capabilities: [68] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable- Address: 0000000000000000 Data: 0000 Capabilities: [78] #10 [0001]
# cat /proc/mtrr reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1 reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1 reg02: base=0xc0000000 (3072MB), size= 512MB: write-back, count=1 reg03: base=0x100000000 (4096MB), size= 512MB: write-back, count=1 reg04: base=0xfeda0000 (4077MB), size= 128KB: uncachable, count=1
No 'write-combining' entry! But with 2.6.11.12 I do have one: <2.6.11.12 system> cat /proc/mtrr reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1 reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1 reg02: base=0xc0000000 (3072MB), size= 512MB: write-back, count=1 reg03: base=0x100000000 (4096MB), size= 512MB: write-back, count=1 reg04: base=0xfeda0000 (4077MB), size= 128KB: uncachable, count=1 reg05: base=0xf0000000 (3840MB), size= 128MB: write-combining, count=1
Where to continue to? P.S. I'm not on the list, so please CC me. -- Zaar - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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