Comment # 10 on bug 1171677 from Oliver Neukum

(In reply to Ivan Murray-Smith from comment #9)
> Still broken on 5.3.18-lp152.54-default
> 
> Is there any test script or anything I can run to help diagnose this?

We can try the dynamic debugging feature for teh modules involved to enable
more logging. We need to pinpoint what to switch on. Please provide "dmesg" and
"lsmod" before and after plugging the hub in.