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firewalker

Member

From: Hellas (Greece).

Registered: 2006-06-05

Posts: 552

[SOLVED] Dell laptop usb problem

Sundenly some subsystems of KDE bacame slugish. Eg login takes more time and dolphin takes a long time to start.

I noticed many errors with dmesg

usb usb4-port1: Cannot enable. Maybe the USB

It is an integrated card reader (stopped working) so, no way to fix it. I tried cleaning the mainboard, checking capacitor etc, but nothing fixed it.

I guess KDE wait for the usb port to get ready?

Is there any way to disable the faulty usb port?

Also lsub takes a long time to produce output.

Bus 002 Device 003: ID 8086:0189 Intel Corp. Centrino Advanced-N 6230 Bluetooth adapter
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 062a:3281 MosArt Semiconductor Corp. 2.4G Wir
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 1bcf:2b80 Sunplus Innovation Technology Inc. Laptop_Integrated_Webcam_HD
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
    |__ Port 2: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 2: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
        |__ Port 5: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
        |__ Port 5: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
        |__ Port 4: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
        |__ Port 4: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M

Last edited by firewalker (2021-04-02 06:16:04)

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Γίνε ρεαλιστής, μείνε ονειροπόλος ...

firewalker

Member

From: Hellas (Greece).

Registered: 2006-06-05

Posts: 552

Re: [SOLVED] Dell laptop usb problem

OK. I disabled the usb with:

echo "usb4" | sudo tee /sys/bus/usb/drivers/usb/bind

Time for a new laptop...

Last edited by firewalker (2021-04-02 06:16:41)

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Γίνε ρεαλιστής, μείνε ονειροπόλος ...