Hej,
usb hotplug doesn't work for me running stable kernel v6.5.12 on an AMD
based Thinkpad t495s. Bisect pointed to 7b8ae3c24ef ("xhci: Loosen RPM as
default policy to cover for AMD xHC 1.1") - which is 4baf1218150 upstream.
Reverting that from 6.5.12 fixes the issue for me.
Current upstream rc kernel contains this patch but doesn't show the issue.
Regards,
Sebastian
On 11/28/2023 07:12, Sebastian Ott wrote:
> Hej,
>
> usb hotplug doesn't work for me running stable kernel v6.5.12 on an AMD
> based Thinkpad t495s. Bisect pointed to 7b8ae3c24ef ("xhci: Loosen RPM as
> default policy to cover for AMD xHC 1.1") - which is 4baf1218150 upstream.
>
> Reverting that from 6.5.12 fixes the issue for me.
> Current upstream rc kernel contains this patch but doesn't show the issue.
>
> Regards,
> Sebastian
>
I believe it's the same discussion as
https://lore.kernel.org/stable/[email protected]/#t
The outcome was that another missing patch is in the stable queue for
various kernels and will be part of the next stable release for various
kernels.
On Tue, 28 Nov 2023, Mario Limonciello wrote:
> On 11/28/2023 07:12, Sebastian Ott wrote:
>> usb hotplug doesn't work for me running stable kernel v6.5.12 on an AMD
>> based Thinkpad t495s. Bisect pointed to 7b8ae3c24ef ("xhci: Loosen RPM as
>> default policy to cover for AMD xHC 1.1") - which is 4baf1218150 upstream.
>>
>> Reverting that from 6.5.12 fixes the issue for me.
>> Current upstream rc kernel contains this patch but doesn't show the issue.
>>
> I believe it's the same discussion as
> https://lore.kernel.org/stable/[email protected]/#t
>
> The outcome was that another missing patch is in the stable queue for various
> kernels and will be part of the next stable release for various kernels.
Great, thank you!
I can confirm that v6.5.12 + a5d6264b ("xhci: Enable RPM on controllers that support low-power states")
fixes the issue for me.
Sebastian