I just put Fedora Core 2 on a Dell Precision 350. It was previously running FC 1, but this was a clean "everything" install, with all updates installed. This machine has a USB keyboard with a couple of USB ports in the keyboard. When booting with the updated kernel (2.6.6-1.435), I got a message from kudzu and the keyboard (and USB mouse that is plugged into the keyboard) went dead. I eventually recovered them by unplugging the keyboard from chassis and reconnecting it. On a subsequent boot, I managed to do this quickly enough to get kudzu to tell me that it had detected a Dell keyboard hub, and to configure it as a US English keyboard. I have two USB keys, a 128 MB Targus and a 256 MB Sony that's USB 2. With kernel 2.6.6-1.435, but *not* with the original FC 2 kernel (2.6.5-1.358), I can't get the Sony key to work in a port on the keyboard (which is the most convenient port to use!). It works fine if I plug it into other ports directly on the computer. The Targus key works fine in all the ports. When I insert the Sony key into the keyboard port, I get the following in /var/log/messages with the 2.6.6-1.435 kernel Jun 27 17:32:29 g2 kernel: usb 5-1.2: new full speed USB device using address 10 Jun 27 17:32:29 g2 kernel: usb 5-1.2: can't connect bus-powered hub to this port When I insert it into a port directly on the computer (one of the two on the front), I get: Jun 27 17:35:25 g2 kernel: usb 1-4: new high speed USB device using address 2 Jun 27 17:35:25 g2 kernel: hub 1-4:1.0: USB hub found Jun 27 17:35:25 g2 kernel: hub 1-4:1.0: 1 port detected Jun 27 17:35:25 g2 kernel: usb 1-4.1: new high speed USB device using address 3 Jun 27 17:35:26 g2 kernel: Initializing USB Mass Storage driver... Jun 27 17:35:26 g2 kernel: scsi0 : SCSI emulation for USB Mass Storage devices Jun 27 17:35:26 g2 kernel: Vendor: Sony Model: Storage Media Rev: PROL Jun 27 17:35:26 g2 kernel: Type: Direct-Access ANSI SCSI revision: 02 Jun 27 17:35:26 g2 kernel: SCSI device sda: 512000 512-byte hdwr sectors (262 MB) Jun 27 17:35:26 g2 kernel: sda: assuming Write Enabled Jun 27 17:35:26 g2 kernel: sda: assuming drive cache: write through Jun 27 17:35:26 g2 kernel: sda: unknown partition table Jun 27 17:35:26 g2 kernel: Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0 Jun 27 17:35:26 g2 kernel: Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 0 Jun 27 17:35:26 g2 kernel: usbcore: registered new driver usb-storage Jun 27 17:35:26 g2 kernel: USB Mass Storage support registered. Jun 27 17:35:26 g2 kernel: updfstab: Using deprecated /dev/sg mechanism instead of SG_IO on the actual device Jun 27 17:35:27 g2 scsi.agent[4803]: disk at /devices/pci0000:00/0000:00:1e.0/0000:02:01.2/usb1/1-4/1-4.1/1-4.1:1.0/host0/0:0:0:0 Jun 27 17:35:28 g2 udev[4867]: creating device node '/udev/sda' Jun 27 17:35:28 g2 udev[4869]: creating device node '/udev/sg0' Inserting it into the keyboard port with kernel 2.6.5-1.358 gives Jun 27 17:26:21 g2 kernel: usb 5-1.2: new full speed USB device using address 6 Jun 27 17:26:21 g2 kernel: hub 5-1.2:1.0: USB hub found Jun 27 17:26:21 g2 kernel: hub 5-1.2:1.0: 1 port detected Jun 27 17:26:22 g2 kernel: usb 5-1.2.1: new full speed USB device using address 7 Jun 27 17:26:22 g2 kernel: Initializing USB Mass Storage driver... Jun 27 17:26:22 g2 kernel: scsi0 : SCSI emulation for USB Mass Storage devices Jun 27 17:26:22 g2 kernel: Vendor: Sony Model: Storage Media Rev: PROL Jun 27 17:26:22 g2 kernel: Type: Direct-Access ANSI SCSI revision: 02 Jun 27 17:26:22 g2 kernel: usbcore: registered new driver usb-storage Jun 27 17:26:22 g2 kernel: USB Mass Storage support registered. Jun 27 17:26:22 g2 scsi.agent[4162]: disk at /devices/pci0000:00/0000:00:1e.0/0000:02:02.0/usb5/5-1/5-1.2/5-1.2.1/5-1.2.1:1.0/host0/0:0:0:0 Jun 27 17:26:22 g2 kernel: SCSI device sda: 512000 512-byte hdwr sectors (262 MB) Jun 27 17:26:22 g2 kernel: sda: assuming Write Enabled Jun 27 17:26:22 g2 kernel: sda: assuming drive cache: write through Jun 27 17:26:22 g2 kernel: sda: sda1 sda2 sda3 sda4 Jun 27 17:26:22 g2 kernel: Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0 Jun 27 17:26:24 g2 udev[4313]: creating device node '/udev/sda3' Jun 27 17:26:24 g2 udev[4311]: creating device node '/udev/sda1' Jun 27 17:26:24 g2 udev[4310]: creating device node '/udev/sda' Jun 27 17:26:24 g2 udev[4312]: creating device node '/udev/sda2' Jun 27 17:26:24 g2 udev[4314]: creating device node '/udev/sda4' I didn't get the first update kernel (2.6.6-1.427) when I updated this machine, so I haven't tried with that. I've looked in the mailing list archives, bugzilla, and google, and didn't see anything that I could tell was relevant. I'd welcome any suggestions or explanations. George