Black, are you able to charge when shutdown if you are using Windows?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1461986
Title:
can't change usb_charge attribute in /sys/devices/platform/sony-laptop
Status in linux package in Ubuntu:
Incomplete
Bug description:
I am on a Sony VAIO svf43142sn. My laptop has the ability to leave a USB port
powered on even after shutdown to charge other devices. The value of
/sys/devices/platform/sony-laptop/usb_charge is 1, but the USB port is not
powered on. Also when I tried toggling it to 0 it resets back to 1 when I check
again using cat. So I restarted the module sony-laptop with debug flags on.
When I try:
echo -n 0 | sudo tee -a /sys/devices/platform/sony-laptop/usb_charge
these are the curresponding kernel logs, implying that it was a success:
[ 9121.879908] sony_laptop: found handle 0x0155 (offset: 0x07)
[ 9121.881386] sony_laptop: __call_snc_method: [SN07:0x0000000000000107]
[ 9121.881394] sony_laptop: called SN07 with 0x0107 (result: 0x0000)
But if I cat the value of usb charge, the change is not reflected, and I see
this when I dmesg:
[ 9346.202318] sony_laptop: found handle 0x0155 (offset: 0x07)
[ 9346.202489] sony_laptop: __call_snc_method: [SN07:0x0000000000000007]
[ 9346.202494] sony_laptop: called SN07 with 0x0007 (result: 0x0001)
If it matters, when i simply echo 1, I will get this:
[ 9879.675844] sony_laptop: found handle 0x0155 (offset: 0x07)
[ 9879.676878] sony_laptop: __call_snc_method: [SN07:0x0000000000010107]
[ 9879.676885] sony_laptop: called SN07 with 0x10107 (result: 0x0000)
The entire debug message when I restart the module(sony-laptop) is given
here: http://paste.ubuntu.com/11551226/ . I have asked the same as a question
on askubuntu.com. It has got a other information if you need it:
http://askubuntu.com/questions/628542/how-to-leave-a-usb-port-powered-during-shutdown-for-charging-mobile
---
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: dalton 1816 F.... pulseaudio
CurrentDesktop: GNOME
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=babf655a-816a-4c8a-ad03-6fe550cc1d60
InstallationDate: Installed on 2015-05-28 (7 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Sony Corporation SVF14212SNW
NonfreeKernelModules: wl
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-38-generic
root=UUID=d52d966a-2fa0-4050-821e-99176a8fc013 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.16.0-38.52~14.04.1-generic 3.16.7-ckt10
RelatedPackageVersions:
linux-restricted-modules-3.16.0-38-generic N/A
linux-backports-modules-3.16.0-38-generic N/A
linux-firmware 1.127.12
Tags: trusty
Uname: Linux 3.16.0-38-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 11/18/2013
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: R0220DA
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnInsydeCorp.:bvrR0220DA:bd11/18/2013:svnSonyCorporation:pnSVF14212SNW:pvrC10JZ3LZ:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: SVF14212SNW
dmi.product.version: C10JZ3LZ
dmi.sys.vendor: Sony Corporation
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