@Pär Lidén:
I think falling back to USB 1.1 if 2.0 is not bad, but it's not grabbing the problem.
Let's repeat:
Same hardware setup in both tests:
- Booting Gutsy with the (old) 2.6.17 kernel: USB 2.0 works and speed is fast, perfect
- Booting Gutsy with the included 2.6.20 kernel: USB 2.0 doesn't work, removing ehci is a workaround, speed is slow
There is no hardware issue. Hardware is totally the same. It's probably the driver that has changed. Maybe the hardware was not 100% compliant but 2.6.17 driver handled this well, don't know.
@Pär Lidén:
I think falling back to USB 1.1 if 2.0 is not bad, but it's not grabbing the problem.
Let's repeat:
Same hardware setup in both tests:
- Booting Gutsy with the (old) 2.6.17 kernel: USB 2.0 works and speed is fast, perfect
- Booting Gutsy with the included 2.6.20 kernel: USB 2.0 doesn't work, removing ehci is a workaround, speed is slow
There is no hardware issue. Hardware is totally the same. It's probably the driver that has changed. Maybe the hardware was not 100% compliant but 2.6.17 driver handled this well, don't know.