device not detected on usb port

[imtiaznizami]

hi,
i am trying to get my usb work and have tried to connect different devices with NO success. right now i am trying to connect Epson Perfection 1660 scanner.

i am using debian woody-r2 with a custom compiled kernel 2..6.2. When loading modules for usb, i get the following as soon as i insmod the uhci_hcd module:

"uhci_hcd 0000:00:07.2: Unlink after no-IRQ? Different ACPI or APIC settings may help."

i have turned off all power settings in bios. Also in my custom built kernel, the ACPI and power management was not included at all.

following is the output from lspci:

00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x] (rev c4)
00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP]
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 40)
00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 06)
00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 16)
00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
00:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
00:0a.0 Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 02)
00:0b.0 FireWire (IEEE 1394): Texas Instruments TSB12LV26 IEEE-1394 Controller (Link)
01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX/MX 400] (rev b2)


i have also included the output from dmesg as a text file. Any help will be greatly appreciated.

[hard candy]

There is a module called usb-scanner which needs to be loaded, I can't remember if epson has one or not, but there are some brand specific usb scanner modules that are available also. Check "modprob -l | more" and see if the usb-scanner module is available and if therre is one for Epson also. If they are not present you may have to compile one or I think Debian should have a package in a source list somewhere. Maybe www.apt-get.org will have one listed.

[mdwatts]

Originally posted by imtiaznizami

"uhci_hcd 0000:00:07.2: Unlink after no-IRQ? Different ACPI or APIC settings may help."

i have turned off all power settings in bios. Also in my custom built kernel, the ACPI and power management was not included at all.


Any USB settings in the bios like legacy support that you can enable/disable?

Even though you've disabled power management, still try adding 'noapic' and 'noacpi' to your boot loader.

[imtiaznizami]

thanks to both of you. i tried the noacpi and noapic option and there are no more warning/error messages.