The model code is NP550P5C-T01AR. It's an Argentinean model. The only
difference with the factory model is the harddrive (which I had to
replace because the original died a month after I bought it) and the
RAM, which I bumped to 16Gb.
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Agustin Barto, could you please provide the full computer model as noted
on the sticker?
** Description changed:
Description of problem:
- After I resume the system and plug something in one of the machine's
- USB3 ports (it doesn't happen if I plug the same device on a USB2 port),
- the CPU
I forgot the link
[1] http://blog.michael.kuron-germany.de/2011/03/patching-dsdt-in-
recent-linux-kernels-without-recompiling/
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Title:
High CPU
I found a proper work-around for the problem. I noticed that the ACPI
dumps differed when the "USB S3 Wake-Up" was enabled or disabled, so
what I took the DSDT for when the option is enabled, recompiled it, and
forced it using the instructions given in [1]. I then disabled the
option (so the laptop
** Tags removed: kernel-bug-fixed-upstream
** Tags added: kernel-bug-exists-upstream
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Title:
High CPU load after resuming on Samsung NP550P5C in
Nevermind, the bug is still there on 3.11.0, 3.11.7 and 3.12.0. I had
left the "USB S3 Wake-Up" option enabled by mistake.
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Title:
High CPU load
Just to make sure I went back to 3.11.0 and I couldn't reproduce the
issue. I think installing the Intel MEI drivers on Windows (this is a
dual boot box) did something. Weird.
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3.11.7 works fine too
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Title:
High CPU load after resuming on Samsung NP550P5C in BIOS mode
To manage notifications about this bug go to:
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That's good news. Can you also give the latest upstream 3.11.7 stable
kernel a test to see if the fix in 3.12 was also sent to stable?
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.7-saucy/
** Tags added: kernel-bug-fixed-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete =>
I tried the latest kernel version (3.12.0-031200-generic) from Ubuntu's
kernel PPA and the issue is no longer present.
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Title:
High CPU load afte
** Bug watch added: Linux Kernel Bug Tracker #63021
http://bugzilla.kernel.org/show_bug.cgi?id=63021
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=63021
Importance: Unknown
Status: Unknown
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I found a workaround for the problem. Enabling the "USB S3 Wake-Up" BIOS
option seems to fix this problem. I had it turned off since I bought the
machine, but I guess something was introduced in 3.9 that triggers the
issue. Judging from the amount of ACPI related issues on Samsung
laptops, a true s
I had to send another e-mail [0] because the report for the first one
was generated using the wrong kernel version.
[0] http://marc.info/?l=linux-acpi&m=138170536231873&w=2
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An e-mail was sent to linux-a...@vger.kernel.org with the relevant
information.
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Title:
High CPU load after resuming on Samsung NP550P5C in BIOS
It might be good to open an upstream bug report, since you tested the
latest upstream kernel. Would it be possible for you to open an
upstream bug report[0]? That will allow the upstream Developers to
examine the issue, and may provide a quicker resolution to the bug.
Please follow the instructio
The issue is still present in linux-image-3.12.0-031200rc4-generic
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Title:
High CPU load after resuming on Samsung NP550P5C in BIOS mode
To mana
The v3.12-rc4 kernel is now available. Can you test this kernel, which can be
downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-rc4-saucy/
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The issue is still present in 3.11.0-12-generic
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Title:
High CPU load after resuming on Samsung NP550P5C in BIOS mode
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The issue is still present in Ubuntu 13.10 Beta2.
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Title:
High CPU load after resuming on Samsung NP550P5C in BIOS mode
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The issue is still present in 3.11.1-031101-generic.
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Title:
High CPU load after resuming on Samsung NP550P5C in BIOS mode
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I can't test whether the bug is there or not because the system barely
works. I tried the same trick I used to test the 3.9rc* (booting in
recovery mode and using pm-suspend) but that didn't work. Notice that
with the current kernel (linux-image-3.8.0-30-generic) works just fine.
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Can you confirm the bug does not exist in upstream v3.8 final:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-raring/
If it does not, we can bisect between v3.8 final and v3.9-rc1.
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h
I had a lot of problems resuming with most of rc kernels (the screen
doesn't turn on), but I manage to test the bug. The problem is present
in rc1, 2, 3, and 4.
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It sounds like this bug was introduced in v3.9. In order to bisect, we
need to identify the last good and first bad kernel versions.
Can you test the following kernels and report back? We are looking for
the earliest kernel version that exhibits this bug:
v3.9-rc4: http://kernel.ubuntu.com/~ker
The issue is not present in linux-image-3.8.13-03081307-generic, so it's
between this and linux-image-3.9.0-030900-generic.
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Title:
High CPU load
The issue is not present in the latest raring kernel (linux-
image-3.8.0-30-generic), but it's present on linux-
image-3.9.0-030900-generic.
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Title
I'd like to perform a bisect to figure out what commit caused this
regression. We need to identify the earliest kernel where the issue
started happening as well as the latest kernel that did not have this
issue.
Can you test the following kernels and report back? We are looking for
the first kerne
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