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Ive installed Arch on more than 10 machines, and never encountered any usb problems. Everything was fine for a long time. Now i have usb problems on both own machines.
1) Netbook - after inserting BT dongle nothing happens. Ive got dmesg message :
dinth-netbook kernel: usb 1-3: new high speed USB device using ehci_hcd and address 3no kernel module is loaded, nothing else happens. BT dongle works OK on another machines, even another raw arch installations.
Also every other USB device works on this netbook.
2) Desktop - similar problem, but reggarding _all_ usb devices, not only bt dongle. Only similar "new high speed usb device.." message is showing after inserting 2 different bt dongles, every pendrive ive tried of, USB CDROM, mobile phone...
Only thing that is working here is pendrive integrated with UMTS modem (turned on by usb_modeswitch) - system sees mass memory, but as "unformated" one.
When i put BT dongle (different than in netbook) when system is running, sometimes BT starts to jump on/off very fast.
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