On 5.9.2024 21.57, Mario Limonciello wrote:
On 9/5/2024 00:53, Mika Westerberg wrote:
On Wed, Sep 04, 2024 at 12:38:15PM -0500, Mario Limonciello wrote:
❯ ls -l /sys/bus/pci/drivers/thunderbolt/*/consumer*
lrwxrwxrwx 1 root root 0 Sep 4 12:33
/sys/bus/pci/drivers/thunderbolt/0000:c4:00.5/consumer:pci:0000:00:03.1 ->
../../../virtual/devlink/pci:0000:c4:00.5--pci:0000:00:03.1/
lrwxrwxrwx 1 root root 0 Sep 4 12:33
/sys/bus/pci/drivers/thunderbolt/0000:c4:00.6/consumer:pci:0000:00:04.1 ->
../../../virtual/devlink/pci:0000:c4:00.6--pci:0000:00:04.1/
❯ cat /sys/bus/pci/drivers/thunderbolt/*/power/runtime_status
suspended
active
I would have expected the USB4 host router to go back into runtime PM, but
it doesn't anymore until I reboot the system.
Yes, it should enter runtime suspend after a while. Would you mind
sharing dmesg around this?
I was capturing artifacts when all of a sudden it started to work. Then I remembered I updated the BIOS on this system very recently. This is a pre-production BIOS.
I downgraded back to old BIOS and everything works as you expect, so there is some BIOS bug at play. I'll see if others can reproduce my result and drive a BIOS solution.
Sorry for the noise on the patch, all is great!
Tested-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Thanks for testing it
-Mathias
