andi456
Apprentice
Joined: 06 Mar 2005
Posts: 226
Location: Germany
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 Posted: Fri Nov 27, 2020 8:09 pm Post subject: Usb wifi problems after resume |
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Hi,
as there are sometimes problems with my usb wifi, when the computer boots or resumes from suspend, I noticed that it seems to be managed by xhci_hcd, though it is connected to an usb-2.0 port, while both ehci_hcd and xhci_hcd are compiled into the kernel (gentoo-sources 5.9.11). Is there a way to tell the kernel to use ehci_hcd instead? Just to see, if it works more reliably in that case?
This is, what dmesg tells me, when the wifi does not work after resume.
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usb 1-5.2: unable to read config index 0 descriptor/all
usb 1-5.2: can't read configurations, error -71
usb 1-5-port2: attempt power cycle
usb 1-5.2: new high-speed USB device number 59 using xhci_hcd
usb 1-5.2: unable to read config index 0 descriptor/all
usb 1-5.2: can't read configurations, error -71
usb 1-5.2: new high-speed USB device number 60 using xhci_hcd
usb 1-5.2: unable to read config index 0 descriptor/start: -71
usb 1-5.2: can't read configurations, error -71
usb 1-5-port2: unable to enumerate USB device
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The wifi hardware is of the following type (lsusb output):
| Code: |
Bus 001 Device 061: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
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Any hint would be appreciated.
Kind regards,
Andreas |
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Kernel & Hardware
