For those of you with a Samsung laptop showing this problem, please see
this issue:
https://bugs.launchpad.net/ubuntu/+source/acpi/+bug/971061
in particular my last two posts.
I think a kernel patch can be made to flush the events from the embedded
controller, at resume, in the same
For those of you with a Samsung laptop showing this problem, please see
this issue:
https://bugs.launchpad.net/ubuntu/+source/acpi/+bug/971061
in particular my last two posts.
I think a kernel patch can be made to flush the events (LID, AC
plug/unplug, etc) from the Embedded
This is not a bug in acpi (Ubuntu) as this is just a software package that
displays
information. Instead, this would be a bug in the linux kernel (ex.
samsung-laptop.c)
for not handling the laptop lid logic correctly.
No, you are confounding two issues.
This is a buggy behaviour in
I'm sorry, yes, its not a bug in the userspace acpi program,
rather a problem that can be fixed by the kernel ACPI or a userspace workaround
(post #103).
Cheers
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If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .
I downloaded trusty-desktop-amd64.isofrom that link, and tested
with my Series 5 NP530U3C, and the issue still persist in the
Public bug reported:
LID close and AC and battery status events not produced anymore on
samsung ultrabook.
I have a Samsung Series 5 NP530U3C-A01 ultrabook.
This is an old issue with a new workaround fix. I just posted here to
give information for my computer, and to confirm that I've tested
Script that calls the program found in the other attachment after resume
from sleep.
** Attachment added: 99samsung_fix_ec_events
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1283589/+attachment/3992107/+files/99samsung_fix_ec_events
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Attached DSDT of a Samsung Series 5 NP530U3C ultrabook with the same
problem. Bios version is latest: P14AAJ
** Attachment added: DSDT_SamsungSeries5-NP530U3c-AB1_WithBios_P14AAJ.dsl
This is the program I made, that unstucks the computer so that it can
send LID and AC and Battery events again. (it queries the embedded
controller queued events, thus unblocking the EC so that it can start
sending them again).
Ideally run after resume from sleep, or at any other time.
**
This is a patch created by Lan Tianyu on the kernel bugzilla to do the
same that my workaround did, but in a more proper way, and from the
kernel:
https://bugzilla.kernel.org/show_bug.cgi?id=44161#c133
I tested it:
https://bugzilla.kernel.org/show_bug.cgi?id=44161#c135
and
I also wanted to put all the info in one place, so I made this blog
here:
http://www.zenstep.com.ar/samsung-linux
Cheers
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More description about this issue found I posted in blog format here:
http://www.zenstep.com.ar/samsung-laptop
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Christopher: I created the new issue here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1283589
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https://bugs.launchpad.net/bugs/971061
(sorry, the link is: http://www.zenstep.com.ar/samsung-linux )
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https://bugs.launchpad.net/bugs/1283589
Title:
LID close and AC and battery status events not
Christopher: you changed my description of the bug, and in doing so,
confused the two different ways to force the issue to show up. You
listed the second way as a fourth item of the first way, when it is a
different way.
Take a look at the original description.
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You
UPDATED v2: Safer because it obtains the EC ports automatically from
/proc/ioports, and it micro-pauses between queries, so that the EC returns each
event only once. This replaces the little program in #3.
This is the program I made, that unstucks the computer so that it can send
LID
UPDATED v2: Safer because it obtains the EC ports automatically from
/proc/ioports, and it micro-pauses between queries, so that the EC returns each
event only once. This replaces the little program in #3.
This is the program I made, that unstucks the computer so that it can send
LID
** Description changed:
On my Samsung Series 5 NP530U3C-A01 the LID close, AC, and battery
status events not produced anymore. The situation is the same (tested
with trusty-desktop-amd64.iso 2014-02-22). I created a blog post where I
can put all the information related to this bug here:
This is a NEW and BETTER patch created by Kieran Clancy on the kernel
bugzilla to do the same that my workaround did, but in a more proper
way, and from the kernel:
https://bugzilla.kernel.org/show_bug.cgi?id=44161#c149
I also tested it this weekend, and it works (I forced the issue to
Many thanks juanmanuel for identifying the cause for this long running
issue and for working diligently to find the fix.
You're welcome, it fills me with joy reading all this good feedback!!
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http://zenstep.com.ar/samsung-linux
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Joseph: The best kernel patch so far was made by Kieran Clancy (see post
#18 here). His patch is attached to a kernel bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=44161 in comment 149.
I'm just the author of the userspace workaround (post #3, #4, #14) that
started it all (see the other
Breaking News!
A fix in the form of a kernel patch has now been posted to the linux-
acpi and linux-kernel mailing list:
[PATCH v2] ACPI / EC: Clear stale EC events on Samsung systems
http://marc.info/?l=linux-acpim=139359680828880w=2
That kernel patch was made by Kieran Clancy
Breaking News!
A fix in the form of a kernel patch has now been posted to the linux-
acpi and linux-kernel mailing list:
[PATCH v2] ACPI / EC: Clear stale EC events on Samsung systems
http://marc.info/?l=linux-acpim=139359680828880w=2
That kernel patch was made by Kieran Clancy
OMG!
Has anyone besides the OP reproduced the issue on these drives?
I'm not even sure that his FS corruption, in this particular instance,
is because of the hardware layer:
The Original Poster (Ritesh), states in post #31
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