[sane-devel] S..L..O..W USB Scanning with Epson 1650
Karl Heinz Kremer
khk@khk.net
Thu, 15 Nov 2001 18:43:06 -0500
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Can you please give some examples of scan times with information
about the size and the resolution of the scans.
Do you get any messages on the console that are related to the USB
system?
Karl Heinz
On Thu, Nov 15, 2001 at 09:54:54AM -0500, Justin S. Peavey wrote:
> It is taking about 10 times longer to scan (even in preview mode) in
> Linux than it does in W2K. I've tried the 2.4.8 and 2.4.13 kernels,
> Sane 1.0.5 and 1.0.6, and a couple of frontends (xsane, iscan - from
> Epson) with no difference. Is this normal?
>=20
> Stats:
>=20
> Dual PIII (667), Tyan Tiger 133 Mobo (Apollo Pro 133A)
> Only USB device is this scanner: Epson 1650 (vendor=3D0x04b8
> product=3D0x0110)=20
>=20
> # lspci -v:
>=20
> 00:00.0 Host bridge: VIA Technologies, Inc. VT82C691 [Apollo PRO] (rev
> c4)
> Flags: bus master, medium devsel, latency 0
> Memory at d8000000 (32-bit, prefetchable) [size=3D64M]
> Capabilities: [a0] AGP version 2.0
> Capabilities: [c0] Power Management version 2
>=20
> 00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3 AGP]
> (prog-if 00 [Normal decode])
> Flags: bus master, 66Mhz, medium devsel, latency 0
> Bus: primary=3D00, secondary=3D01, subordinate=3D01, sec-latency=
=3D0
> Memory behind bridge: dc000000-ddffffff
> Prefetchable memory behind bridge: d0000000-d7ffffff
> Capabilities: [80] Power Management version 2
>=20
> 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C596 ISA [Apollo PRO]
> (rev 23)
> Subsystem: VIA Technologies, Inc. VT82C596/A/B PCI to ISA
> Bridge
> Flags: bus master, stepping, medium devsel, latency 0
>=20
> 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo]
> (rev 10) (prog-if 8a [Master SecP PriP])
> Flags: bus master, medium devsel, latency 32
> I/O ports at d000 [size=3D16]
> Capabilities: [c0] Power Management version 2
>=20
> 00:07.2 USB Controller: VIA Technologies, Inc. VT82C586B USB (rev 11)
> (prog-if 00 [UHCI])
> Subsystem: Unknown device 0925:1234
> Flags: bus master, medium devsel, latency 32, IRQ 11
> I/O ports at d400 [size=3D32]
> Capabilities: [80] Power Management version 2
>=20
> 00:07.3 Host bridge: VIA Technologies, Inc.: Unknown device 3050 (rev
> 30)
> Flags: medium devsel
>=20
> 00:0f.0 Ethernet controller: National Semiconductor Corporation:
> Unknown device 0020
> Subsystem: Netgear: Unknown device f312
> Flags: bus master, medium devsel, latency 32, IRQ 11
> I/O ports at d800 [size=3D256]
> Memory at df000000 (32-bit, non-prefetchable) [size=3D4K]
> Expansion ROM at <unassigned> [disabled] [size=3D64K]
> Capabilities: [40] Power Management version 2
>=20
> 00:10.0 Multimedia audio controller: Creative Labs SB Live! EMU10000
> (rev 05)
> Subsystem: Creative Labs CT4760 SBLive!
> Flags: bus master, medium devsel, latency 32, IRQ 10
> I/O ports at dc00 [size=3D32]
> Capabilities: [dc] Power Management version 1
>=20
> 00:10.1 Input device controller: Creative Labs SB Live! (rev 05)
> Subsystem: Creative Labs Gameport Joystick
> Flags: bus master, medium devsel, latency 32
> I/O ports at e000 [size=3D8]
> Capabilities: [dc] Power Management version 1
>=20
> 00:12.0 Multimedia video controller: Brooktree Corporation Bt878 (rev
> 02)
> Subsystem: Hauppauge computer works Inc.: Unknown device 13eb
> Flags: bus master, medium devsel, latency 32, IRQ 5
> Memory at df001000 (32-bit, prefetchable) [size=3D4K]
>=20
> 00:12.1 Multimedia controller: Brooktree Corporation Bt878 (rev 02)
> Subsystem: Hauppauge computer works Inc.: Unknown device 13eb
> Flags: bus master, medium devsel, latency 32, IRQ 5
> Memory at df002000 (32-bit, prefetchable) [size=3D4K]
>=20
> 00:13.0 SCSI storage controller: Advanced System Products, Inc
> ABP940-UW
> Flags: bus master, medium devsel, latency 32, IRQ 11
> I/O ports at e400 [size=3D64]
> Memory at df003000 (32-bit, non-prefetchable) [size=3D256]
> Expansion ROM at <unassigned> [disabled] [size=3D64K]
>=20
> 01:00.0 VGA compatible controller: nVidia Corporation NV15 (Geforce2
> GTS) (rev a4) (prog-if 00 [VGA])
> Subsystem: LeadTek Research Inc.: Unknown device 2840
> Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 10
> Memory at dc000000 (32-bit, non-prefetchable) [size=3D16M]
> Memory at d0000000 (32-bit, prefetchable) [size=3D128M]
> Expansion ROM at <unassigned> [disabled] [size=3D64K]
> Capabilities: [60] Power Management version 1
> Capabilities: [44] AGP version 2.0
>=20
>=20
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--=20
Karl Heinz Kremer khk@khk.net
PGP Key at http://www.freecolormanagement.com/download/khk.asc
EPSON Sane Backend: http://www.freecolormanagement.com
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