** Tags added: kernel-fixed-upstream-3.18-rc3
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
8086:08b
Christopher,
I have a question about the reverse bisect process. It looks like you
want me to download Linus' tree, checkout the 3.18-rc3 release, and mark
it bad. However, I am unsure of which revision I should mark as "good"
to correspond to the 3.16.0-24.32 kernel I reported the bug for.
The "
** Attachment added: "sudo fwts method > fwts_method"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251605/+files/fwts_method
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** Attachment added: "sudo fwts"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251606/+files/results.log
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** Attachment added: "iasl -d dsdt.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251607/+files/dsdt.dsl
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** Attachment added: "sudo dmidecode > dmidecode.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251603/+files/dmidecode.log
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** Attachment added: "cat /proc/version > version"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251602/+files/version
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Public bug reported:
Fresh install of a Vivid Vervet Ubuntu GNOME daily iso.
Adding debugging information from
https://wiki.ubuntu.com/Kernel/Debugging/Backlight
I found that
echo 8 > /sys/class/backlight/intel_backlight/brightness
worked to lower my screen brightness, without playing with ker
** Attachment added: "dmesg | grep 'ACPI: Video' > video"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251604/+files/video
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** Attachment added: "sudo acpidump -o acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251615/+files/acpidump.txt
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** Attachment added: "acpixtract acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251612/+files/ssdt2.dat
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** Attachment added: "ls /sys/class/backlight > backlight"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251617/+files/backlight
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** Attachment added: "acpixtract acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251614/+files/dsdt.dat
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** Attachment added: "acpixtract acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251609/+files/ssdt5.dat
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** Attachment added: "acpixtract acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251610/+files/ssdt4.dat
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** Attachment added: "acpixtract acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251613/+files/ssdt1.dat
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** Attachment added: "acpixtract acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251611/+files/ssdt3.dat
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** Attachment added: "acpixtract acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251608/+files/ssdt6.dat
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** Attachment added: "grep -r . /proc/acpi > acpi"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388636/+attachment/4251616/+files/acpi
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The new BIOS did not resolve the issue, however creating
/usr/share/X11/xorg.conf.d/80-backlight.conf
with the contents:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "sna"
Option "Backlight" "intel_backlight" # use your backlight that works here
Public bug reported:
After several hours (generally) of being used, the wifi drops out
unceremoniously and toggling the hardware radio switch on my machine
does nothing to restore connectivity.
After this occurs, I am unable to see any access points.
Rebooting the machine solves the issue, until
** Description changed:
Fresh install of a Vivid Vervet Ubuntu GNOME daily iso.
Adding debugging information from
https://wiki.ubuntu.com/Kernel/Debugging/Backlight
I found that
echo 8 > /sys/class/backlight/intel_backlight/brightness
worked to lower my screen brightness, w
kernel-bug-exists-upstream-3.18-rc3 -- the aforementioned
/usr/share/X11/xorg.conf.d/80-backlight.conf
with the contents:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "sna"
Option "Backlight" "intel_backlight" # use your backlight that works her
Christopher, I suspect that it did not -- do you want me to try some
live CDs of previous releases? :)
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Title:
[Lenovo V570 Notebook
** Description changed:
After several hours (generally) of being used, the wifi drops out
- Unceremoniously and toggling the hardware radio switch on my machine
+ unceremoniously and toggling the hardware radio switch on my machine
does nothing to restore connectivity. After this occurs, I am
Public bug reported:
Running Firefox Nightly on a Thinkpad T510 and experiencing lockups in
Wayland and in Xorg. SSHing into the machine works, but the mouse is
unresponsive on the device.
Here are some traces:
Dec 08 19:47:48 ThinkPad-T510 kernel: [ cut here ]
Dec 08 19:
Kai-Heng, I am fully updated and I am running the same kernel - see:
asif@ThinkPad-T510:~$ sudo apt-cache policy linux-image-5.8.0-25-generic
linux-image-5.8.0-25-generic:
Installed: 5.8.0-25.26
Candidate: 5.8.0-25.26
Version table:
*** 5.8.0-25.26 500
500 http://archive.ubuntu.com/
I added groovy-updates.
The issues persist:
asif@ThinkPad-T510:~$ uname -a
Linux ThinkPad-T510 5.8.0-33-generic #36-Ubuntu SMP Wed Dec 9 09:14:40 UTC 2020
x86_64 x86_64 x86_64 GNU/Linux
[ 132.543468] [ cut here ]
[ 132.543469] refcount_t: underflow; use-after-free.
[
I continue to see these lockups in 5.8.0-43-generic #49-Ubuntu
asif@ThinkPad-T510:~$ uname -a
Linux ThinkPad-T510 5.8.0-43-generic #49-Ubuntu SMP Fri Feb 5 03:01:28 UTC 2021
x86_64 x86_64 x86_64 GNU/Linux
[ 156.659907] [ cut here ]
[ 156.659908] refcount_t: underflow; u
Sorry, how do I install this? I don't want to mess anything up.
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Title:
Wifi stops responding sporadically on lenovo-yoga-720-15ikb
Hi, this is still an issue -- can you provide some instructions on how
to install the Linux firmware on Ubuntu? I can follow instructions.
Thanks!
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I copied the contents of linux-firmware-20190815 to /lib/firmware/ and
rebooted with the v5.3-rc3 kernel.
The issue persists in this configuration. Wifi drops periodically and I
must restart network-manager to be able to use it.
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I will note that sometimes, restarting network-manager doesn't work,
especially if I have put the machine to sleep prior to trying to access
the network. Here's a dmesg where it did come back after network-manager
restart.
** Attachment added: "dmesg.txt"
https://bugs.launchpad.net/ubuntu/+sou
On 5.2.0-15-generic my WiFi stopped working and I see this in dmesg.
[52478.783342] iwlwifi :01:00.0: Microcode SW error detected. Restarting
0x200.
[52478.783507] iwlwifi :01:00.0: Start IWL Error Log Dump:
[52478.783510] iwlwifi :01:00.0: Status: 0x0080, count: 6
[52478.78
This stopped happening at some point in the last week or so.
** Changed in: network-manager (Ubuntu)
Status: New => Fix Released
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280645/+files/UdevDb.txt
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apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280637/+files/IwConfig.txt
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280644/+files/RfKill.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280642/+files/ProcModules.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280641/+files/ProcInterrupts.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280636/+files/CurrentDmesg.txt
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apport information
** Tags added: apport-collected
** Description changed:
I can make this happen by trying to upload a large file using Firefox
Nightly to https://send.firefox.com/ Within a few seconds (like 10-15)
my wifi stops responding.
Restarting network manager via service netw
apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280639/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280635/+files/CRDA.txt
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Ti
apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280640/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280646/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280643/+files/PulseList.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1838208/+attachment/5280638/+files/Lspci.txt
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find . -iname wl.ko
./updates/dkms/wl.ko
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Title:
Wifi stops responding sporadically on lenovo-yoga-720-15ikb
Status in linux packag
The module seems to be bcmwl
git bisect log
# bad: [ba36ad4f039514bc76d7ae37ebcea550349c98b5] UBUNTU: Ubuntu-5.2.0-8.9
# good: [f7908af84a9feac82717574870591fd09e8eeeb2] UBUNTU: Ubuntu-5.0.0-21.22
git bisect start 'Ubuntu-5.2.0-8.9' 'Ubuntu-5.0.0-21.22'
# good: [1c163f4c7b3f621efff9b28a47abb36f737
I am still seeing the issue in the latest mainline kernel -
uname -a
Linux Lenovo-YOGA-720-15IKB 5.3.0-050300rc3-generic #201908042232 SMP Mon Aug 5
02:36:00 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
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