link_power_management_policy was changed to save powers, which may cause
hotplug disabled as a side effect.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1890883
Title:
[ICH9M] (e)SATA hotplug doesn't work
Status in linux package in Ubuntu:
Incomplete
Bug description:
Hardware is a laptop - DELL Latitude E6400, SATA controller Intel
ICH9M with 4 ports, at least 2 of which should be hotplug-enabled -
the optical drive bay which has an push-to-eject mechanism, and a
combo eSATA+USB port on the side.
Trying various eSATA and plain SATA devices on the port, and inserting
the optical drive after booting up, neither is detected automatically
and need a manual bus scan to be detected:
# scan - - - > /sys/class/scsi_host/host?/scan
Hotplug works without such manual intervention on this laptop in
Windows. I've also seen Linux handle hotplug without this intervention
with an eSATA ExpressCard (SiI3132 chipset) on another machine (can't
use that in this one, it's only got a CardBus slot).
I've also read recommendations related to BIOS settings marking the
slot as "external/removable", but I haven't seen anything of the sort
in this machine's BIOS setup.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-42-generic 5.4.0-42.46
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: zdenek 767 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Aug 8 12:41:53 2020
InstallationDate: Installed on 2020-08-06 (2 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. Latitude E6400
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic
root=UUID=5962cfa3-cf85-4f62-9655-8bf792852323 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-42-generic N/A
linux-backports-modules-5.4.0-42-generic N/A
linux-firmware 1.187.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/04/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A34
dmi.board.name: 0W620R
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA34:bd06/04/2013:svnDellInc.:pnLatitudeE6400:pvr:rvnDellInc.:rn0W620R:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E6400
dmi.sys.vendor: Dell Inc.
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