Ok, so it's likely a kernel regression. What was the last kernel version
doesn't have this issue?
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Title:
WiFi disconnects continually (goes "dow
Can you please test this kernel without any kernel parameter?
https://people.canonical.com/~khfeng/lp1907991/
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Title:
Touchpad not working dynabo
8dcb7a15a585b6d0fee15751ce11d7a68cfedd56 ("gpiolib: acpi: Take into
account debounce settings") is part of a series with 18 patches, so it's
safer to only bakcport it for 5.10 kernels.
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ht
** Also affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
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Title:
cannot change the regulatory domain ath10k, QCA9984
This need to be fix in upstream first:
https://github.com/alsa-project/alsa-ucm-conf
** Package changed: linux (Ubuntu) => alsa-ucm-conf (Ubuntu)
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Test kernel with the patch:
https://people.canonical.com/~khfeng/lp1901089/
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Title:
Ubuntu kernels 5.4.0-51 and 5.4.0-52 break ir-keytable loadin
Well, it should.
And I get it all wrong. I thought there's a race, but the NULL pointer
dereference actually happened long after the disconnect.
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Test take 2.
** Patch added: "lp1827452-take2.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1827452/+attachment/5446102/+files/lp1827452-take2.patch
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Can you please try kernel parameter "pcie_aspm=force
pcie_aspm.policy=performance"?
** Changed in: linux (Ubuntu)
Status: Expired => Incomplete
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Normally this will be (automatically) fixed by later kernel release.
If you are willing to find the fix and backport it, it'll start from
kernel bisection, which will take quite while.
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h
I've already backported it:
http://kernel.ubuntu.com/git/ubuntu/ubuntu-xenial.git/commit/?h=master-
next&id=2cecb2e49bee95d4b9d89f732e999a6908db6abf
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On Thursday, 29 March 2018, Kai-Heng Feng
> wrote:
>
>> The one in -proposed should be 4.13.0-38-generic.
>>
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>> report.
>> https://bugs.launchpad.net/bugs/1661876
>>
&
Because the commit you bisected has been included since 4.15.12, which
you said the issue is not fixed (comment #10).
That particular commit will be included in next Bionic kernel update.
So I guess now the bug is "waiting for /dev/disk"?
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Please try this kernel:
https://people.canonical.com/~khfeng/lp1758507/
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Title:
sky2 gigabit ethernet driver sometimes stops working after lid-op
I increased the d3_delay from 150 to 500 to solve the issue.
Can you try if 200 also work for you?
https://people.canonical.com/~khfeng/lp1758507-200/
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This is the bad commit:
commit bc976233a872c0f20f018fb1e89264a541584e25
Author: Thomas Gleixner
Date: Fri Dec 29 10:47:22 2017 +0100
genirq/msi, x86/vector: Prevent reservation mode for non maskable
MSI
I'll report the issue to upstream maintainers.
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Title:
r8169 ethernet card don't work after returning from suspension
To manage notifications about this bu
It's a warning about the clock, not really related to sky2. I'll send a
patch to fix your sky2 issue.
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Kai-Heng Feng (kaihengfeng)
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Please enable HWE stack:
https://wiki.ubuntu.com/Kernel/LTSEnablementStack
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Title:
[Asus UX360UA] battery status in unity-panel is not changing w
https://lkml.org/lkml/2018/3/31/185
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Title:
sky2 gigabit ethernet driver sometimes stops working after lid-open
resume from sleep (88E8055)
To
$ rmadison linux-image-generic-hwe-16.04
linux-image-generic-hwe-16.04 | 4.13.0.37.56 | xenial-security | amd64, arm64,
armhf, i386, ppc64el, s390x
linux-image-generic-hwe-16.04 | 4.13.0.37.56 | xenial-updates | amd64, arm64,
armhf, i386, ppc64el, s390x
linux-image-generic-hwe-16.04 | 4.13.0.
Please find the first bad -rc kernel in [0] that introduce the bug.
It should be either v4.14-rc* or v4.15-rc*.
[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/
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@Eugene,
Please file a new bug if your machine is not MBPR 11,1.
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Title:
Macbook Pro Retina 11,1 SD Card Reader Doesn't Work
To manage notifica
Ok, there's actually a kernel parameter for that, please boot with
"nvme.io_queue_depth=2"
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Title:
Samsung SSD corruption (fsck needed)
To manag
Can you try some value like 64? PM1725 NVMe uses this value.
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Title:
Samsung SSD corruption (fsck needed)
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** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Kai-Heng Feng (kaihengfeng)
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Title:
r8169 ethernet card don't work after r
IIRC, this is a limitation of the FW of ath10k, it can't correctly
report the connection speed.
The "real" connection speed is not affected by this issue though.
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Is there any entry in /etc/modprobe.conf or /etc/modprobe.d that is
r8168/r8169?
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Title:
PCI network card (r8169) UNCLAIMED at boot
To manage no
Please give #3 a try...
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Title:
iwlwifi-29 kernel timeout queue active on fifo 2 and stuck
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Can you attach dmesg when BT failed to work?
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Title:
Qualcomm QCA6174 [168c:003e] (rev 32) on Ubuntu Bionic fresh install
has flakey wifi and n
Follow #22 and file a bug to let Intel iwlwifi developers know.
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Title:
Unstable WiFi adapter Gigabyte GC-WB867D-I
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** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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Title:
PCI network card (r8169) UNCLAIMED at boot
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** Changed in: linux (Ubuntu)
Status: In Progress => Fix Released
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Title:
wlp3s0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardwar
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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Title:
Support UVC1.5 Camera for Xenial
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I guess you warm booted instead of cold booted your system?
Please power off the system, and boot with v4.18-rc1 again.
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Title:
Qualcomm QCA6174
For those who see "xhci_hcd :00:14.0: xHCI host controller not
responding, assume dead" in the dmesg, please subscribe to LP: #1763594.
I am building a test kernel for that bug.
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http
Reboot several times, not seeing this issue anymore.
** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial
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Title:
Please try this kernel, which has some back ported commits to solve the issue:
https://people.canonical.com/~khfeng/lp1763594/
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Title:
xhci hangs
I don't see "xhci_hcd :00:14.0: xHCI host controller not responding,
assume dead" in the logs you attached, so it's quite possibly another
issue.
Please file a new bug for that, thanks!
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Only OEM systems with Ubuntu preloaded use linux-oem kernel. We have QA
to rigorously test systems before shipping, so it should be fine for
linux-oem users.
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Can you do a kernel bisection?
First, find the last good -rc kernel and the first bad -rc kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Then,
$ sudo apt build-dep linux
$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
$ cd linux
$ git bisect start
$ git bi
Can you do a kernel bisection?
First, find the last good -rc kernel and the first bad -rc kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Then,
$ sudo apt build-dep linux
$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
$ cd linux
$ git bisect start
$ git bi
** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Released
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Title:
hibernate/resume failure [non-free: wl] ubuntu 18.04
To manage n
Bas,
Do you still see the issue? I intend to backport the fixes to Bionic's
kernel if the fix works.
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Title:
xhci hangs; reset results in NULL p
Can you attach the error? Maybe use something else like virtual box to
see if KVM is the culprit?
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Title:
Samsung SSD corruption (fsck needed)
T
** Description changed:
+ ===SRU Justification===
+ [Impact]
+ xHC stops to work after some time. This happens when the xHC gets
+ runtime resumed/suspended constantly.
+
+ [Test]
+ User reports this backport fixes the issue.
+
+ [Fix]
+ In addition to check EINT, also check ports' status.
+
+
** Also affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
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Title:
xhci hangs; reset results in NULL pointer dereference
To
Public bug reported:
===SRU Justification===
[Impact]
Runtime suspended xHC keeps spewing out this message:
xhci_hcd :00:14.0: Root hub is not suspended
[Test]
With the fix, the message stops.
[Fix]
Only decrement PM counter when DBC was started.
[Regression Potential]
Low. It fixes the ove
** Also affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
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Title:
xhci_hcd :00:14.0: Root hub is not suspended
To mana
This is because the fix of LP: #1752772 has one commit [1] that disables WoL by
default.
Set WoL explicitly should solve your issue.
[1]
https://github.com/torvalds/linux/commit/7edf6d314cd061e1d0a1b7bc0b511d64322c3f72
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** Also affects: bluez (Ubuntu)
Importance: Undecided
Status: New
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Title:
Bluetooth bug
To manage notifications about this bug go to:
Sorry for the late reply.
Can you make sure hibernation was affected by commit
a192aa923b66a435aae56983c4912ee150bc9b32?
Please do the following:
$ git checkout a192aa923b66a435aae56983c4912ee150bc9b32
...then build and try the kernel
$ git checkout a192aa923b66a435aae56983c4912ee150bc9b32^
...
** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
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Title:
Wake-on-LAN stopped working with 4.15.0-24 kernel
To manage notific
This could be a regression in thermald.
** Also affects: thermald (Ubuntu)
Importance: Undecided
Status: New
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Title:
CPU/GPU Fans sudd
Use "journalctl -b -1" to get log from last boot (the crashed one).
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Title:
system freezes
To manage notifications about this bug go to:
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** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Kai-Heng Feng (kaihengfeng)
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Title:
touchpad not working on lenovo yoga 530
Please perform a kernel bisection to find which commit introduces the
regression.
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Title:
Random unrecoverable freezes on Ubuntu 18.10
To manage
Please try if older kernel works, e.g. v3.13, v4.4.
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Title:
USB E-MU 0202/0404 reset and disconnect
To manage notifications about this bug go to
I haven't seen this issue yet.
But from lspci in #38, the Thunderbolt controller disappears or lost power:
08:01.0 PCI bridge [0604]: Intel Corporation DSL6540 Thunderbolt 3 Bridge
[Alpine Ridge 4C 2015] [8086:1578] (rev ff) (prog-if ff)
!!! Unknown header type 7f
Kernel driver in
Please run `lspci -vv` to read the PCI config space.
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Title:
USB over thunderbolt turns off every once in a while
To manage notifications about
Please attach `sudo lspci -vvnn`.
I'd like to see if it support MSI-X or maskable MSI.
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Title:
sky2 ethernet card don't work after returning fro
Would it be possible for you to do a kernel bisection?
First, find the last good -rc kernel and the first bad -rc kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Then,
$ sudo apt build-dep linux
$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
$ cd linux
$ g
It is possible to try thermald package in Xenial?
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Title:
Ubuntu 18.04 is overheating after upgrade from 16.04
To manage notifications about thi
Public bug reported:
[Impact]
USB Storage based Realtek card reader doesn't work, because the usb-storage
module tries to use it in UAS mode instead of using "ums-realtek".
[Fix]
Add new IDs to ums-realtek driver.
In addition to that, we add a new module knob, "enable_mmc=", to enable/disable
M
Hi kisak,
First, thank you for the SteamVR PPA, I use that on my gaming rig.
This bug seems to be the same as LP: #1798583, I'll build a test kernel
for users to test, and request an SRU to let Cosmic kernel includes the
fix.
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Can you successfully boot to multi-user.target (run level 3)? If it's
possible, please attach dmesg under -38 and -39, thanks!
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Title:
XPS 9560 w
Please try the hotkey "Alt+PrintScreen+x", then reload rtl8822be?
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Title:
RTL8822BE WiFi Disabled in Kernel 4.18.0-12
To manage notifications ab
Append "3" to grub boot entry:
https://www.if-not-true-then-false.com/2012/howto-change-runlevel-on-grub2/
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Title:
XPS 9560 won't boot with this
If it's similar to LP: #1785171, would it be possible to do a kernel
bisection?
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Title:
Intel I219-V ethernet connection lost
To manage notifica
Would it be possible to do a kernel bisection between 4.4.0-138 and
4.4.0-139?
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Title:
Summary: Kernel bug (unhandled paging request) on "udisksc
So there are three different issue:
Podesta's (original bug reporter): increase D3 delay can workaround the issue.
Kris': non-maskable MSI issued IRQ before device resume, we probably need a DMI
quirk table to let affected platforms use INTx.
WoL: Does it ever work in previous kernel versions?
A
Please test this kernel:
https://people.canonical.com/~khfeng/lp1806247/
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Title:
the new Steam Controller driver breaks it on Steam
To manage no
Public bug reported:
[Impact]
Plugging ethernet cable cannot wake up Intel I210 when it's runtime
suspended. It's because the PME is not enabled.
[Fix]
PCI core doesn't enable PME because the driver explicitly saves its PCI
state before runtime suspend routine. Don't save PCI state fixes the
issu
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Title:
Disable LPM for Raydium Touchscreens
To manage notif
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Title:
Add pointstick support for Cirque Touchpad
To manage
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Title:
Fix and issue that LG I2C touchscreen stops working a
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Title:
Fix "incomplete report" noise after S3
To manage not
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Title:
Power consumption during s2idle is higher than long i
Public bug reported:
[Impact]
Raven Ridge xHC may fail to suspend, causes the USB stops working, and blocks
the system entering system-wide suspend.
[Fix]
It's a hardware/firmware bug, workarounded by bailing out suspend function if
it ever fails, and reset the xHC in next resume function.
[Te
** Also affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
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Title:
Workaround CSS timeout on AMD SNPS 3.0 xHC
To manage not
Public bug reported:
[Impact]
USB devices connected to Terminus USB hub stop working after S3.
[Fix]
The Terminus hub seems to have a rather slow reset command, so we need to wait
for extra time before doing any further action.
[Test]
After applying the fix, USB devices connected to the HUB no
Ok, can you test if disabling secure boot in BIOS helps?
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Title:
RTL8822BE WiFi Disabled in Kernel 4.18.0-12
To manage notifications about this
Thanks for your testing.
This means staging drivers don't work when kernel lockdown is enabled.
I'll discuss with kernel team members how to sort this out.
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** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Kai-Heng Feng (kaihengfeng)
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Title:
RTL8822BE WiFi Disabled in Kernel 4.18.0-12
Would it be possible to try 16.04's thermald instead of removing it?
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Title:
CPU/GPU Fans suddenly go 100% RPM on Asus ROG G752VT
To manage noti
*** This bug is a duplicate of bug 1787775 ***
https://bugs.launchpad.net/bugs/1787775
** This bug has been marked a duplicate of bug 1787775
touchpad not working on lenovo yoga 530
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No you don't need to do anything. I'll update the driver in Ubuntu's
kernel.
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Title:
touchpad not working on lenovo yoga 530
To manage notificat
** Description changed:
+ ===SRU Justification===
+ [Impact]
+ Realtek 8822be doesn't work under kernel lockdown.
+
+ [Fix]
+ Add r8822be.ko to signature-inclusion, so it can be signed and be loaded
+ when lockdown is enabled.
+
+ [Test]
+ Since I can't signed the kernel so it's not tested.
+
Seems like proprietary Nvidia driver is not there for your graphics card:
Kernel modules: nvidiafb, nouveau
** Also affects: nvidia-graphics-drivers (Ubuntu)
Importance: Undecided
Status: New
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The issue should be fixed by next Bionic kernel. Should be release at
January.
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https://bugs.launchpad.net/bugs/1728244
Title:
Touchpad stops working after reboot on Apollo Lake
To man
Please test this kernel out:
https://people.canonical.com/~khfeng/lp1787775/
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https://bugs.launchpad.net/bugs/1787775
Title:
touchpad not working on lenovo yoga 530
To manage notificat
** Also affects: linux via
https://bugzilla.kernel.org/show_bug.cgi?id=200855
Importance: Unknown
Status: Unknown
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https://bugs.launchpad.net/bugs/1733194
Title:
kernel NUL
Sure.
Kernel with the patch included:
https://people.canonical.com/~khfeng/lp1728244-norpm/
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https://bugs.launchpad.net/bugs/1728244
Title:
Touchpad stops working after reboot on Apoll
Public bug reported:
[Impact]
Some I2C touchpanels generate IRQ storm after system suspend/resume.
[Test]
After applying the fix, the IRQ storm stops generated by Raydium touchpanels.
[Fix]
Instead of requesting i2c reset, simply requesting the device to power on. The
HID over I2C spec doesn't
There's a new firmware for Intel 7260:
commit 70353356f8a01b6593ea94fd6ed6e9593fd0da1f
Author: Amit K Bag
Date: Wed May 16 10:52:14 2018 +0530
linux-firmware: Update firmware patch for Intel Bluetooth 7260
(B3/B4)
This patch updates the firmware patch for Intel bluetooth 7260
also
Please upstream your patch so we can backport it to Ubuntu's kernel.
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https://bugs.launchpad.net/bugs/1797031
Title:
Touchscreen/stylus always reports 1% battery [patch]
To manage noti
Upstream maintainers are busy, so it's quite normal. Please be patient.
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https://bugs.launchpad.net/bugs/1797031
Title:
Touchscreen/stylus always reports 1% battery [patch]
To manage n
Public bug reported:
[Impact]
When the keyboard backlight sysfs is missing, userspace does not know
the current keyboard backlight brightness.
[Fix]
There's a loading order race condition, between the dell-smbios and its
backends, dell-smbios-{smm,wmi}.
Build them as one module can solve the iss
Would it be possible for you to do a kernel bisection?
First, find the last good -rc kernel and the first bad -rc kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Then,
$ sudo apt build-dep linux
$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
$ cd linux
$ g
https://lkml.org/lkml/2018/10/11/331
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https://bugs.launchpad.net/bugs/1793846
Title:
Regression: gamepad Redragon Seymur 2 no longer works properly
To manage notifications about this b
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