same issue on a toshiba laptop
yeah i've been having the same issue on a toshiba satellite m35x laptop. when i bought it i upgraded from winxp home to pro. later i realized that of the 3 usb2 ports on the laptop (one on the side and 2 on the back) the side usb port would either not recognize my ipod mini or would say high speed usb device plugged into non highspeed usb port. I tested the port with my ipod 20gig and a usb2 wireless adapter. all had similar problems.
i exchanged the laptop at the store only to find the new laptop had the same problems except it was one the of the back ports. i tried winxp home and pro, same problem with both.
i had the replacement sent in for repairs at toshiba but they only restored the original hd settings and probably didnt test the device. i had the replacement sent again for repairs this time they replaced the motherboard. all ports worked the first time but soon all of the ports were acting up randomly. sometimes the ipod wouldnt be recognized or the connection would be made then dropped, made then dropped, made then dropped an indeterminate number of times and sometimes it would recognize the ipod but only at usb1 speed. i had the motherboard replaced again after convincing the tech that the problem still existed (it randomly worked for all of 10 min while trying to explain my problem to a toshiba tech)
i had similar problems connecting my ipod 20gig to my friend's shuttle xpc p4. the connection would be limited to usb1 even though it was an usb 2 port. luckily enough my amd 64 shuttle xpc has had no such problems.
my original guess was that toshiba's mobos are faulty, then i thought it was the ipod usb2 cord (i tested 2 different ones with no luck), now i'm begining to think its a winxp problem. but the random nature of the problem is very frustrating. i've tried both software (reinstalling winxp, itunes/ipod software, uninstalling/reinstalling usb2 drivers) and hardware fixes (cord change and mobo change).
Has anyone find out the reasons?
I have the same IBM t40, and I am seeing exactly the same problem-my USB 2.0 devices cannot connect to 2.0 HuB. If anyone above know why, PLEASE share !! THANKS!!!
Tim
Quote:
Originally Posted by Massif
holy crap! good idea!
does usb work on linux? I guess I'll try and find out
IMB T40 USB2.0 issue running at 1.1 fixed?
Ive had the same issue as the users in the forum with WInXP SP2 and a USB 2.0 HI-SPEED device (Archos Gmini400). I didnt realise it was running at 1.1 speed until the message popped up telling me to connect to a faster hub (frustrating thing!).
After a week of probing and testing (broke the Gmini in the process cos i pulled the cable out mid write and crashed the HDD on it) I went through all the 'solutions' and none of them worked.
In the end im up to this..
Change detected drivers :
Intel 8xxxx DB/DBM USB2.0 Enhanced USB driver to the ms 'Standard Enhanced PCI to USB Host Controller'
and
Intel 8xxxx DB/DBM USB driver to the MS 'Standard Universal PCI to USB Host Controller'
from control panel, system, usb ports,right click on usb, update driver, choose from list, select above driver and NOT the intel drivers as they dont appear to work.
I copied a 119mb file to a flashdisk in 15 seconds but I dont have my Gmini400 to transer a 700mb file over , or to see if that sh** popup comes back. - ill update this post when i test
Update 11-02-05 : just tested, didnt work.
Update 12-02-05 :found a fresh built T40 that does work, it uses
Intel(r) 82801DB/DBM USB 2.0 Enhanced Host Controller - 24CD
on XP 2002 SP1
driver info in c:\windows\system32\drivers\
usbehci.sys 5.1.2600.1152(xpsp2.021217-1051)
usbhub.sys 5.1.2600.1129 (xpsp2.020921-0842)
usbport 5.1.2600.1158 (xpsp2.021217-1051)
c:\windows\system32\
hccoin.dll 5.1.2600.1106 (xpsp1.020828-1920)
usbui.dll 5.1.2600.0 (xpclient.010817-1148)
all signed by Microsoft Windows XP Publisher
which appears to be a hybrid install on a SP1 machine preloaded factory t40. hope others can take this further to investigate..
Update 14-02-05 : Built two identical T40's, one works, other did not use USB2.0.
I even downgraded the BIOS and Embedded Controller BIOS so they matched.
At this point I am giving up and putting down to hardware issue, probably the loosened ports i read about in another post.
T40 with Ipod mini - same problem
Hi all,
I am experiencing the EXACT same problem with my T40, using it with an Ipod Mini. Initially it recongized the ipod OK, but went to USB1.1 speed. Then inexplicably, it would no longer recognize the Ipod and would not charge it. I tried everything - updating the bios, downloading latest Intel chipset support, explicitly deleting & replacing USB drivers, and at one stage I thought it was something the Ipod installed and even editing the registry removing any reference to Ipod. I unistalled & reinstalled ipod software several times, including updates. I also verified it was not the ipod at fault as it synced with my desktop PC's USB2.0 hub without incident.
I found a 'fix' (though not elegant) that may get to the root of the problem. I find that if I DISABLE the Intel 82801DB/DBM USB 2.0 enhanced controller in Windows Device manager, my ipod again syncs, albeit only at 1.1 speeds. But it charges again (whereas with that driver active it did not), and is recognized whereas previously it did not.
I suspect that the USB2.0 hardware is perhaps at fault (and it is switched off by disabling this driver), or the driver is faulty. Am going to set about finding a solution. If the driver is at fault, I have no idea where to find a better one as this is the one released with WinXP SP2. (Microsoft driver version 5.1.2600.0 dated 6/1/2002).
This is an IBM system board problem, not a driver problem
Quote:
Originally Posted by shmookles
So, after getting my system board replaced the problem went away right away. I didn't have to mess with drivers or anything. This is apparently a known IBM problem and it is when dust gets on the system board and allows a circuit to form between to resistors on the board. Call IBM and get them to replace your board, this is the ONLY fix for this problem.
Thank you everyone, particularly Shmookles, for saving me a lot of wasted time and energy (and grief!). I spoke with IBM and gave them the information from this forum. They sent me a replacement system board and an experienced tech came out to replace it. The problem was solved immediately, just as Shmookles experienced. You can try to change drivers and other settings for as long as you want, but it will not fix the problem. the only solution is to replace the system board. Save yourself a lot of wasted effort and make the call. You won't regret it.
T40 USB2.0 Problem, in Summary its a hardware fault
Thanks eveyone, some people put in a lot of work here
1) pleased I'm not totally mad, had already tried most of the solutions here,
2) Gutted its a hardware problem, looks like Its going to take a while to sync my Ipod from now on :-(
Wingnut