Le 12/03/2025 à 18:11, Eric a écrit :
Hi Niklas
Le 11/03/2025 à 15:14, Niklas Cassel a écrit :
Hello Hans, Eric,
Eric, could you please run:
$ sudo hdparm -I /dev/sdX | grep "interface power management"
on both your Samsung and Maxtor drive?
(A star to the left of feature means that the feature is enabled)
Here is the result (apparently PM is enabled on the maxtor but it
doesn't create the same problem) :
(trixieUSB)eric@gwaihir:~$ sudo hdparm -I
/dev/disk/by-id/ata-MAXTOR_STM3250310AS_6RY2WB82 | grep "interface
power management"
* Device-initiated interface power management
(trixieUSB)eric@gwaihir:~$ sudo hdparm -I
/dev/disk/by-id/ata-Samsung_SSD_870_QVO_2TB_S5RPNF0T419459E | grep
"interface power management"
* Device-initiated interface power management
One guess... perhaps it could be Device Initiated PM that is broken with
these controllers? (Even though the controller does claim to support
it.)
Eric, could you please try this patch:
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index f813dbdc2346..ca690fde8842 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -244,7 +244,7 @@ static const struct ata_port_info
ahci_port_info[] = {
},
[board_ahci_sb700] = { /* for SB700 and SB800 */
AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL),
- .flags = AHCI_FLAG_COMMON,
+ .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_pmp_retry_srst_ops,
Will do. I'll report back as soon as I've built the modified kernel
and tested it.
Tested. Both disks now respond that way (no Device-initiated interface
power management) :
(trixieUSB)eric@gwaihir:~$ sudo hdparm -I
/dev/disk/by-id/ata-MAXTOR_STM3250310AS_6RY2WB82 | grep "interface power
management"
Device-initiated interface power management
(trixieUSB)eric@gwaihir:~$ sudo hdparm -I
/dev/disk/by-id/ata-Samsung_SSD_870_QVO_2TB_S5RPNF0T419459E | grep
"interface power management"
Device-initiated interface power management
With the patch you asked me to test, the SSD is properly detected at
reboot, both by the UEFI and the kernel.
Kind regards,
Niklas
Kind regards
Eri
