The bug is indeed fixed in the latest v4.15 stable kernel:
$ uname -a
Linux apol1 4.15.18-041518-generic #201804190330 SMP Thu Apr 19 07:34:21 UTC
2018 x86_64 x86_64 x86_64 GNU/Linux
** Tags added: kernel-fixed-upstream
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Okay, I will test this when I get back at home later this evening (EST
time). The WiFi at my workplace works fine. Not sure why it selectively
fails to work with my home WiFi. If you want to gather any additional
info about what differences could be involved please let me know.
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Public bug reported:
Since the upgrade from linux-image-4.15.0-32-generic to linux-
image-4.15.0-33-generic my Dell XPS 13 L322X laptop is unable to connect
to my home WiFi network. It is unable to obtain an IP through DHCP but
more in general it seems unable to receive packets. If I set up an IP
While the fix did not make it into kernel 4.12, it made it into kernel 4.13-rc1:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.13-rc1=07246c115801c27652700e3679bb58661ef7ed65
** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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Many thanks to Miaoqing Pan for writing a patch for this bug:
https://patchwork.kernel.org/patch/9803211/
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Committed
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https://bugzilla.kernel.org/show_bug.cgi?id=196043
** Bug watch added: Linux Kernel Bug Tracker #196043
https://bugzilla.kernel.org/show_bug.cgi?id=196043
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I can confirm that the same issue occurs with kernel
4.12.0-041200rc4-generic and that the issue did not exist with Ubuntu
16.10. I do not know which kernel introduced the issue but immediately
after upgrading to Ubuntu 17.04 I started observing the machine
occasionally freezing upon resuming from
*** This bug is a duplicate of bug 1674838 ***
https://bugs.launchpad.net/bugs/1674838
** This bug has been marked a duplicate of bug 1674838
kernel BUG at /build/linux-7LGLH_/linux-4.10.0/include/linux/swapops.h:129
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I have had what I think is the same problem (it requires restarting the
whole system):
[85581.367885] [ cut here ]
[85581.367926] kernel BUG at
/build/linux-2NWldV/linux-4.10.0/include/linux/swapops.h:129!
[85581.367967] invalid opcode: [#1] SMP
[85581.367988]
I would be happy to do that, but I already tried to install kernel
3.11.0-20 from Saucy, and the problem persists. My best guess is that
this is an issue that was already present before but it is only
triggered now, maybe by xserver-xorg-video-intel or something like that.
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I have updated the BIOS. I now have the following two lines in dmesg:
[0.00] DMI: LENOVO 42872WU/42872WU, BIOS 8DET69WW (1.39 ) 07/18/2013
[6.731504] thinkpad_acpi: ThinkPad BIOS 8DET69WW (1.39 ), EC unknown
Running xrandr (or the unity-control-center) with kernel
$ sudo dmidecode -s bios-version sudo dmidecode -s bios-release-date
8DET69WW (1.39 )
07/18/2013
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https://bugs.launchpad.net/bugs/1314213
Title:
[Lenovo ThinkPad X220]
Okay, I did not think about trying that. I will update the BIOS (as per
previous post, I am currently using 8DET64WW (1.34 ) 08/31/2012) over
the weekend and provide an update.
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Public bug reported:
Since upgrade to 14.04, the external display on DP1 is extremely
unstable. I get constant [drm:intel_dp_i2c_aux_ch] *ERROR* too many
retries, giving up messages over dmesg. I used to get those with 13.10,
but there was no stability issue. Once the laptop (Lenovo X220) is
I have tried to install linux-image-3.15.0-031500rc3-generic following
this guide: http://linuxg.net/how-to-install-kernel-3-15-rc-3-on-ubuntu-
linux-mint-and-their-derivative-systems/ and I don't see the
[drm:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up messages
anymore, however the
Tried to revert back to kernel 3.11.0-20 by installing packages:
linux-image-3.11.0-20-generic_3.11.0-20.34_amd64.deb
linux-image-extra-3.11.0-20-generic_3.11.0-20.34_amd64.deb
linux-headers-3.11.0-20_3.11.0-20.34_all.deb
linux-headers-3.11.0-20-generic_3.11.0-20.34_amd64.deb
But the problems
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