> Yes, this part of the problem can be avoided by adding an explicit entry > that uses "board_ahci_low_power", as I explained in: > https://lore.kernel.org/linux-ide/ZaATdGDOo5jiBqCR@x1-carbon/T/#u[https://lore.kernel.org/linux-> ide/ZaATdGDOo5jiBqCR@x1-carbon/T/#u] > We seem to have a problem with Tiger Lake, but that problem seems to be > related to Intel VMD. > From looking at your logs, you don't seem to have Intel VMD, however > I'm guessing that some other motherboards that uses Cannon Lake might > have Intel VMD, so I guess the safest thing is to wait until that issue > has been resolved before adding a "board_ahci_low_power" entry for > Cannon Lake. This mighht be kind of naive but what about adding an kernel option to force LPM even if the chipset/board is not oficially supported? > I see now that Damien's revert (patch 2/2 in this series) is not a simple > $ git revert fd3a6837d8e18cb7be80dcca1283276290336a7a > it seems to have some other small changes in the same patch as well. > Sorry for asking you to test something once more... > But could you please test with: > v6.6-rc2 + git revert fd3a6837d8e18cb7be80dcca1283276290336a7a No problem. I've explicitly reverted with 6.8-rc2 and have the kernel running for 1 1/2 days now with 3 suspends and on all of them my system transitions to pc8 so I guess we're good but I'll keep on testing to be sure. Hope this helps. Kind regards, Dieter
