On Tue, 28 Aug 2012, [ISO-8859-1] Bo Brant�wrote: > > On a new computer only one of the USB connectors in the front of the > chassi work, below is output from dmesg, and I would like to know if you > have any advice if the fault is on the motherboard or in the cable and > connector. The two USB ports uses the same cable and the same connector to > the motherboard so one can not install only one of them good and one bad. > Both are USB 2.0. > > [ 7503.797016] usb 1-1.1: new high-speed USB device number 3 using ehci_hcd > [ 7503.889982] scsi11 : usb-storage 1-1.1:1.0 > [ 7504.887354] scsi 11:0:0:0: Direct-Access SanDisk Cruzer 1.00 PQ: 0 ANSI: 2 > [ 7504.888605] sd 11:0:0:0: Attached scsi generic sg9 type 0 > [ 7504.889423] sd 11:0:0:0: [sdi] 31250432 512-byte logical blocks: (16.0 GB/14.9 GiB) > [ 7504.890782] sd 11:0:0:0: [sdi] Write Protect is off > [ 7504.890788] sd 11:0:0:0: [sdi] Mode Sense: 03 00 00 00 > [ 7504.891559] sd 11:0:0:0: [sdi] No Caching mode page present > [ 7504.891564] sd 11:0:0:0: [sdi] Assuming drive cache: write through > [ 7504.895266] sd 11:0:0:0: [sdi] No Caching mode page present > [ 7504.895271] sd 11:0:0:0: [sdi] Assuming drive cache: write through > [ 7504.899448] sdi: sdi1 > [ 7504.902285] sd 11:0:0:0: [sdi] No Caching mode page present > [ 7504.902290] sd 11:0:0:0: [sdi] Assuming drive cache: write through > [ 7504.902293] sd 11:0:0:0: [sdi] Attached SCSI removable disk > ... > [ 7627.610199] usb 1-1.1: USB disconnect, device number 3 > ... > [ 7640.051409] usb 1-1.2: new full-speed USB device number 4 using ehci_hcd > [ 7640.123230] usb 1-1.2: device descriptor read/64, error -32 > [ 7640.298801] usb 1-1.2: device descriptor read/64, error -32 > [ 7640.474371] usb 1-1.2: new full-speed USB device number 5 using ehci_hcd > [ 7640.546195] usb 1-1.2: device descriptor read/64, error -32 > [ 7640.721762] usb 1-1.2: device descriptor read/64, error -32 > [ 7640.897329] usb 1-1.2: new full-speed USB device number 6 using ehci_hcd > [ 7641.304225] usb 1-1.2: device not accepting address 6, error -32 > [ 7641.376155] usb 1-1.2: new full-speed USB device number 7 using ehci_hcd > [ 7641.783051] usb 1-1.2: device not accepting address 7, error -32 > [ 7641.783176] hub 1-1:1.0: unable to enumerate USB device on port 2 > ubuntu@ubuntu:~$ There's no way to tell for certain from this information where the problem is. My guess is that it's on the motherboard, but that's just a guess. The easiest way to find out would be to replace the cable. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
