Fedora Hardware :: System Uses Uhci_hcd Instead Of Ehci_hcd On USB2 Ports
Jan 14, 2011
I have 8 x USB2 ports on my computer. I know this from personal experience, Windows write speeds, and the spec sheet for my motherboard. I get USB2 write speeds in windows, however when in F14 I get an average of 1.5mb/s, which is USB1.1 speed. When I run lsusb it shows 2 x USB 2.0 and 6 x USB 1.1. /proc/bus/usb/devices shows 2 ports using ehci_hcd (480speed), and 6 using uhci_hcd (12speed).
modprobe -r ehci_hcd (or uhci_hcd) fails with "FATAL: Module ehci_hcd is builtin"
rmmod ehci_hcd (or uhci_hcd) fails with "ERROR: Module ehci_hcd does not exist in /proc/modules"
1) Why are 6 ports being identified as USB 1.1
2) How to I get them to use ehci_hcd and return to USB2.0 speeds?
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May 30, 2011
I'm getting failures of ehci_hcd at random times when trying to copy files between USB2 hard disks on my new installation of OpenSUSE 11.4 on my new i7 machine. Kernel version is 2.6.37-0.5-desktop, x86_64. The error is very repeatable but happens at random times, not associated with any particular disk sector or file etc.It's becoming very annoying as it is causing files on my drives to become corrupted if they are open when the error occurs.
I have two USB2 hard drives plugged in, and I'm trying to copy files from one to the other either via terminal or nautilus. The symptom of the failure is that all USB devices on the root hub of those drives will suddenly disappear in the middle of a file transfer. This includes the KB & mouse , so I lose every USB device on the same root hub at once.
If the keyboard is on a separate root hub I can retain control of the PC. In this case, lsusb shows that the root hub to which the drives were connected has vanished - not just the drive itself. The whole root hub is gone. I have confirmed that it is NOT a problem with the drives themselves, because
(a) I have tried many different drives, of different brands, and they all do it,
(b) all my drives work flawlessly under Windows 7 and
(c) this never happened under my old OpenSUSE 11.2 on my old x86_64 core2 duo PC with the same hard drives.
They are all NTFS formatted and I use NTFS-3g to write to them. I don't have a choice about the NTFS, since they bring data from other Windows PCs. I'd much prefer to be on ext3, but what can you do. The root cause of the problem is that the ehci_hcd module is failing at a low level. It's not the NTFS-3g driver, by the looks of things. I have no idea how to fix this. I don't think it's a problem with my USB2 drives going to sleep mode because it happens in the middle of a file copy operation!
/var/log/messages output follows... /var/log/messages shows these kinds of errors at the leadup to a failure. Nothing suspicious appears until we suddenly see this:
kernel: [ 505.042722] hub 1-1:1.0: cannot reset port 3 (err = -110)
... same message repeated 4 times ...
kernel: [ 509.075401] hub 1-1:1.0: Cannot enable port 3. Maybe the USB cable is bad?
kernel: [ 509.083593] hub 1-1:1.0 cannot disable port 3 (err = -110)
[code].....
NTFS-3g then unmounts ALL the drives on that root hub and everything falls in a heap as all I/O operations and every device on that hub fails in sequence.
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Nov 24, 2010
I`d like to find out how to restart USB ports without restarting whole system?I googled some but solutions mentioned were refering to some modules that are not present on F14.
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Nov 27, 2010
i have a hauppage wintv usb2 tv device, works with windows OS, i want to watch live tv using this.
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Feb 25, 2011
I have a digital camcorder (panasonic NV-GS33) and would like to get the video's to my Hd for editing etc,etc. From what i can see, linux only supports ieee1394. But, as with most google searches and linux you only ever seem to see the problem stories so thought id ask here to see how i could transfer via the usb2 port or weather its even possible?
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Apr 8, 2011
I bought a Thoshiba StorE art 3 1TB external hard drive yesterday and I had to clear off a lot of data from my vaio to the ext drive. But I am facing an acute problem in the data transfer and write speed. The drive is USB 3.0 and my usb ports are
Code:
lspci|grep -i usb
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
I am running on fedora 13 with
Code:
uname -r
2.6.34.8-68.fc13.x86_64
When I try to transfer a big chunk file, the speed I get is 1.7MB/s. I have tried in my other boot windows and had 56MB/s
The second doubt is, I have formatted the whole disk as a single partition of 930GB(NTFS). Do I have to partition into smaller parts for efficiency ?
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Aug 11, 2010
How can I tell if my USB ports are 2.0 ports?
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Jul 12, 2011
is this normal to see in dmesg multiple times after booting (screenshot)
Code:
lsusb
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
[code]....
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May 4, 2011
Hi, I usually use Debian which doesn't have this bug, so I hope Ubuntu users will not if this could be fixed.
Ubuntu version:
Ubuntu 10.04.1 LTS
kernel version: 2.6.32-24-generic
So problem is no matter what device I connect to USB, after some time in dmesg errors are generated which bring load of one core to 100%. These errors are generated in dmesg:
Code:
[325766.792025] ehci_hcd 0000:01:07.2: port 9 resume error -19
[325766.803033] hub 2-0:1.0: hub_port_status failed (err = -32)
[325766.814086] hub 2-0:1.0: over-current change on port 10
[325766.928027] ehci_hcd 0000:01:07.2: port 10 resume error -19
[code]....
I found solution for Ubuntu which says to get this working I should disable USB 2.0 which is not really acceptable for me.[URL]
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Apr 10, 2010
I installed Ubuntu 9.10 recently. I heard that there will be no open ports in the system unless I specifically open one. How do I scan to find a open port in my system.
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Mar 20, 2010
I've been using a 2GB flash drive with Ubuntu on it for the last few weeks, instead of a full install as my main laptop is down with hardware failure. I'm finding that it works so well, that I'm tempted to go this way permanently. I really like having the same setup on whatever machine I happen to be using. Anyway, If I was to do this I'd need a drive with more space and I've come across portable SSD drives that support connections over both USB & E-Sata.
If I had Ubuntu installed on such a drive would it be able to boot over both kinds of connections or would I be limited to whatever connection I did the install over? My work laptop supports e-sata, so I'd like to use that mainly but I would like to be able to use USB when e-sata isn't available.
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Sep 2, 2015
My usb stick with Debian only loads from the usb hub it's crazy. I just tried putting the usb stick onto a usb3 port in my desktop and also on a usb2 port even the one where the usb hub is connected to and it wont' load!. Same initramfs prompt happens as when connected on the laptop usb ports.
the usb hub has usb2 speeds so is not that the stick is under usb1.1 emulation.
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Sep 9, 2011
i want to try to get my wintv pvr usb2 running will this article still work to get it going? Set up Hauppauge WinTV-PVR USB2 - openSUSE is there a easier way?
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Aug 1, 2014
I have Debian Jessie (testing) with a custom kernel 3.15.7 installed on an Acer Aspire V5-123 netbook which has 2 USB2, and 1 USB3 ports. The problem is that my A4 tech usb mouse is only detected when I connect it to the USB3 port!
Here is the dmesg output after I plug the mouse to the USB3 port:
Code: Select all[ 844.152073] usb 1-1: New USB device found, idVendor=09da, idProduct=000a
[ 844.152089] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 844.152098] usb 1-1: Product: USB Mouse
[ 844.152106] usb 1-1: Manufacturer: A4Tech
[Code] ....
and the lsusb output:
Code: Select allBus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 04f2:b3f6 Chicony Electronics Co., Ltd
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 09da:000a A4 Tech Co., Ltd Optical Mouse Opto 510D
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
But, if I plug the mouse to one of my USB2 ports, I get the following output from lsusb regardless of having or not having my mouse connected:
Code: Select allBus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 04f2:b3f6 Chicony Electronics Co., Ltd
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
And finally, the modules loaded:
Code: Select alllsmod | grep usb
usbhid 44476 0
hid 98196 2 hid_a4tech,usbhid
usbcore 162472 5 uvcvideo,ehci_hcd,ehci_pci,usbhid,xhci_hcd
usb_common 12440 1 usbcore
Apparently, people have had similar problems in Ubuntu, Fedora, Arch, ..., but, I did not find a unique fix.
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Nov 4, 2010
Has anyone tried using a USB to HDMI video card with ubuntu? Is it possible?
I was thinking of purchasing the Coolgear USB2-HDMI.
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Dec 17, 2010
I'm writting an app for desktop and embedded linux and I need to get information about the multiserial port, and I need to know which port is been used (by a printer, por example).The multiserial I'm using is an Altera Corporation Device 0004, and I just need to tell how many ports are there and how many is been used.
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Dec 10, 2015
I'm running Debian 8.2 and trying to set up so I can plug in a couple of external hard drives that will be used to sync data between systems using rsync.
I've got the rsync bit working how I want, thats not a issue. But what I can't seem to get to work properly is when I plug the devices in, they don't mount automatically.
I've tried various methods to no avail so far, systemd.automount in fstab doesn't seem to want to work, for some reason it gives a I/O error. I've tried setting up udev rules and they don't work either, so I'm a bit of a loss now.
Not sure what info to provide that would be relevant at this time, but can add logs as required easy enough.
This machine is headless, so command line only suggestions would be best. I can access X via the network if I have to, but I'd rather do it by cli for ease of access.
My fstab file
Code: Select all# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda1 during installation
UUID=9b4e9dae-ea53-439a-a7fe-87c371c03803 / xfs defaults 0 1
# /home was on /dev/sda9 during installation
[Code] ....
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Jan 25, 2010
I plan to reformat & reinstall my linux (centos).Before doing this, I got to backup my files into my USB external hard disk from Seagate (FreeAgent). The problem I faced is that I could not copy file into the hard disk even I was in root user. It prompted me that it is only read-only. I just wonder why.I have tested with my thumb drive. It worked. May I know why I could not copy file to the USB FreeAgent hard disk. Due to file system?
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Feb 7, 2010
I'm trying to setup oracle10g but, whenever I try to go to my database homepage http://127.0.0.1:8080/apex I get an "unable to connect to" error. Only reason I can think of as to why I can't connect to it is because my ports aren't open. I also recall SELinux complaining about something awhile ago, I can't seem to bring that up any more for some reason.
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Sep 27, 2009
This individual has been within the Ohio State computer labs for sometime because educational endeavors ceased building another Linux personal computer since the last AMD Socket A smouldered within a RAM melt. (Have on idea way there was a smoulder because over clocking was not invoked!) This query is interesting because almost all of the new processors sold are sixty four bit. Flash which is still alpha or beta and a couple of Google applications have not been fully embraced upon the x84-64 architecture which is problematic!
Why? This is just a random post that might be locked or deleted but an individual has been disturbed with the lack of x86-64 application support within Linux considering Unix operating systems have been upon this architecture for an extended period compared to Microsoft operating systems. Citing that SUN or now Oracle possessed the sixty four but architecture when this individual started to dabble within the I.T. industry many years ago. There is still substantial grief that Redhat did not purchase SUN for the hardware.
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Mar 13, 2010
I'm here to lend your support again. I just install "VirtualBox" in Fedora12, but would like to recognize USB ports, how can I do this?
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Mar 28, 2010
I've been struggling for days trying to open port 53 and 25 but can't get it to work. My iptables at /etc/sysconfig contains the following:
# Firewall configuration written by system-config-firewall
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0] .....
On the server machine when I do port scan with nmap I see the following result:
Starting Nmap 4.76 [URL] at 2010-03-28 01:03 CET
Warning: Hostname localhost resolves to 2 IPs. Using 127.0.0.1.
Interesting ports on localhost (127.0.0.1):
Not shown: 986 closed ports .....
But when I try to do telnet from an external machine, e.g:
telnet <IP of host> 53
I get:
Connection refused
telnet: Unable to connect to remote host
I also did a port scan with a tool on an external machine but port 53 and 25 weren't listed as opened ports. Also CheckDNS.net on the server returns "Connection reset. Probably DNS server is offline". I am 100% sure that named and sendmail are running. When I do a ps -aux I see:
named 9261 0.0 0.3 85528 14784 ? Ssl 00:46 0:00 /usr/sbin/named -u named
root 2550 0.0 0.0 9536 1960 ? Ss Mar23 0:02 sendmail: accepting connections
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May 8, 2010
how can i close all of ports and open ssh only?
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Jan 29, 2011
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Apr 28, 2011
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have tried to close ports 443,80,22 & 23 without success.Does anybody have any idea how to do this. I close them in a terminal and their still opened. I closed them in services and their still open what am I not doing right?
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Apr 21, 2011
I'd like to pass all traffic between bridge ports via the FORWARDING chain, so I changed following sysctl parameters:
Code:
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
[code]...
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Oct 16, 2010
I have a simple home network with a windows and fedora clients. I'm running fedora 13, but I"m having problems connecting to the pc on certain ports from my windows pc. I can connect from windows to fedora using VNC, and even connect to my postgresql database. However, can not get connected to my Apache Tomcat or JBoss server. When I first installed the OS I went through and configured the firewall but have since disabled it (stopped service). However, I still can't get to the app/web servers.
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