Hello,
On this date - Tue, Sep 24, 2019 at 05:54:09PM +0100, Dom Rodriguez wrote: > On this date - Mon, Sep 23, 2019 at 06:16:25PM +0100, Dom Rodriguez wrote: > > Hello, > > > > On this date - Mon, Sep 23, 2019 at 05:55:46PM +0100, Mick wrote: > > > On Monday, 23 September 2019 17:39:22 BST Dom Rodriguez wrote: > > > > On this date - Mon, Sep 23, 2019 at 07:20:56PM +0300, Alexey Mishustin > > > wrote: > > > > > пн, 23 сент. 2019 г. в 19:13, Dom Rodriguez <shym...@shymega.org.uk>: > > > > > > Hello, > > > > > > > > > > > > On this date - Mon, Sep 23, 2019 at 07:01:08PM +0300, Alexey > > > > > > Mishustin > > > wrote: > > > > > > > пн, 23 сент. 2019 г. в 18:36, Dom Rodriguez > > > > > > > <shym...@shymega.org.uk>: > > > > > > > > Alright, I've managed to isolate the issue to the `tps6598.ko' > > > > > > > > USB-C > > > > > > > > PD kernel module. > > > > > > > > > > > > > > > > I've reached out to the manufacturer of the hub to see if they > > > > > > > > can > > > > > > > > advise, but for now, knowing the problem kernel module has > > > > > > > > definitely helped getting close to solving the problem. > > > > > > > > > > > > > > > Hello, > > > > > > > > > > > > > > What's the model code of your hub? > > > > > > > > > > > > > > -- > > > > > > > Best regards, > > > > > > > Alex > > > > > > > > > > > > Sorry, meant to mention that.. its a Lenovo USb-C Hub C109. I > > > > > > bought it > > > > > > from Amazon, but the manufacturer sells it under the Lenovo brand - > > > > > > http://www.novolk.com/productinfo/54884.html> > > > > > OK. Thanks. It's useful to know which one potentially to avoid. > > > > > > > > The thing is, I've tried with a fair few hubs with this laptop, and it > > > > hasn't been very successful... same issue persists. > > > > > > Have you had a look at the UEFI/BIOS settings? There may be a setting > > > you > > > need to enable in there. > > > > I'm afraid there's no options in the UEFI settings for USB-C power delivery. > > I've tested the hub and PD power adapter (Anker) on the same laptop on the > Windows 10 partition. No luck. The PD chip in the laptop is recognised by > Windows 10 though. > > I've ordered a replacement adapter (Anker), and hub, which should arrive > tomorrow - I'll see how that goes. > > At this point, its either one of three things: > > - The laptop hardware. > - The USB-C hub. > - The Anker power adapter. > > Time will tell.... OK, after much deliberation, I've determined the issue! I'm banging my head on the wall here after realising the cause. I was using an Anker power adaptor, which supplies 60W in *total* to both ports on it - a USB-C port, and a USB-A port. The USB-A port consumes 15W, and the USB-C port is left with 45W. The USB-C hub - for example, the one I've got now consumes 18W from the 45W supplied - which leaves the laptop with 27W. My Thinkpad has a minimum required USB-C PD wattage of 45W - so that's why it wasn't working! Thanks to all who helped with this problem. -- Sincerely, Dom Rodriguez (shymega).
signature.asc
Description: PGP signature
