[BUG] libata: WD Green 480GB (firmware 42059100) disconnects unless booted with libata.force=nolpm

[BUG] libata: WD Green 480GB (firmware 42059100) disconnects unless booted
with libata.force=nolpm

Hardware
========
Laptop:
Dell Latitude 3420

CPU Platform:
Intel Tiger Lake

SATA Controller:
00:17.0 SATA controller [0106]: Intel Corporation Tiger Lake-LP SATA
Controller [8086:a0d3] (rev 20)

SSD:
WD Green 2.5 480GB

Firmware:
42059100

Kernel Versions Tested
======================
- 7.0.0-28-generic (Ubuntu)
- 7.0.0-14-generic (Ubuntu)

Problem Description
===================
The SATA SSD disconnects after approximately 2-3 minutes of normal system
operation under default LPM settings.

Kernel log excerpt:
[  120.456789] ata1.00: qc timeout after 5000 msecs
[  120.456795] ata1.00: failed to disable DIPM
[  120.456800] ata1.00: failed to disable DEVSLP
[  120.456805] ata1: SATA link down
[  120.456810] ata1.00: detaching

After these messages, /dev/sda disappears completely from the system until
reboot.

Reproduction Steps
==================
1. Boot Linux normally without extra kernel parameters.
2. Idle or perform light I/O operations for 2-3 minutes.
3. The SSD drops off the bus.

Workaround & Stability
======================
Modified GRUB configuration (/etc/default/grub):

From:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

To:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash libata.force=nolpm"

Observed behavior with workaround:
- Sustained stability (>15 hours uptime tested).
- Multiple file operations and heavy I/O completed without issue.
- No SATA bus resets or disconnects recorded.
- No device removal.

SMART Information
=================
Model: WD Green 2.5 480GB
Firmware: 42059100
SMART enabled and reporting HEALTHY status (no pending sectors or
reallocated counts).

Questions
=========
1. Is this a known incompatibility between libata Link Power Management and
this SSD firmware?
2. Should a quirk entry be added to libata for this specific drive
model/firmware pair?
3. Would additional debugging information be useful?
Atte.:

Ronald Garcia Vazquez
Teléfono +56 9 2601 1681

*"Mas Dios muestra su amor para con nosotros en que aun siendo pecadores
Cristo murió por nosotros Romanos 5:8"*