ma 12.5.2025 klo 12.25 Niklas Cassel (cassel@xxxxxxxxxx) kirjoitti: > > I have a aROG STRIX B550-F GAMING (WI-FI) motherboard with 6 SATA > > ports from which I can use due to space restrictions 3,4,5,6. New > > info: having checked the manual I notice ports 5 and 6 are special, > > they can be used only when M.2_2 slot is not populated. > > I have WDC WD20EFAX-68FB5N0 and WDC WD5000AAKX-001CA0 drives. > Excellent find! Thanks! > Out of curiosity, do you have the M.2_2 slot populated ? No, they haven't been in use ever. There also isn't any setting to turn M.2_2 on or off in the BIOS. > Ok, so the bad 6.14.5 dmesg you shared before (where you got timeouts), > was when using SATA ports 5,6 ? Yes, and you can see in the logs, ataX matches the motherboard's SATA port number. > So, if we really want to have a quirk which disables LPM only for ports 5-6, > it would probably have to be a DMI quirk, which matches the motherboard name, > see e.g.: > https://github.com/torvalds/linux/blob/v6.15-rc6/drivers/ata/ahci.c#L1120-L1145 And even this would disable LPM for the case of sata ports 5,6 -> WDC WD5000AAKX-001CA0 which works now? Best regards, Mikko
