** Changed in: fwts (Ubuntu)
Assignee: (unassigned) => Ivan Hu (ivan.hu)
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Title:
TPM PCR checking will fail if the all characters are 0
To
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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Title:
[HP 635] Radeon 6310 brightness control does not work
To manage
Thanks Timo!
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https://bugs.launchpad.net/bugs/1907160
Title:
intel-hid is not loaded on new Intel platform
To manage notifications about this bug go to:
Yes this is also sent to upstream for review and hopefully it will be in
5.11
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Title:
intel-hid is not loaded on new Intel platform
To manage
platforms will not be
affected.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Alex Hung (alexhung)
Status: New
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Alex Hung (alexhung)
** Description changed:
[Impact]
- intel-hid is not loaded on new in
When you reboot from Windows, i.e. network is unusable, does lspci show
the NIC?
It might be possible that Windows powers off the NIC and motherboard
does not power it on and therefore the NIC is no visible to Linux.
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What is the kernel version before updating? Is it 5.4.0-53 or earlier
versions?
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https://bugs.launchpad.net/bugs/1904922
Title:
External monitor undetected over hdmi
To manage
This looks the same as
https://ubuntuforums.org/archive/index.php/t-2330904.html
In summary, this is caused by USB power-saving, and this can be disabled
by kernel parameter "usbcore.autosuspend"
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You can also use powertop to disable USB autosuspend in runtime, but it
must be done every time you reboot the compuer
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Title:
USB2.0 HUB only
** Tags removed: verification-needed-focal
** Tags added: verification-done-focal
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Title:
acpi event detection crashes
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Did you try newer NV proprietary drivers like 455?
** Attachment added: "nv_drivers.png"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1904740/+attachment/5435799/+files/nv_drivers.png
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Please refer to https://ubuntu.com/about/release-cycle for life cycles
of Ubuntu kernel.
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https://bugs.launchpad.net/bugs/1904186
Title:
Linux kernel 5.8 is now EOL on kernel.org
To
Ubuntu Groovy will support kernel 5.8 for 9 month, and Hisute will move
to newer kernel later for certain.
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Title:
Linux kernel 5.8 is now EOL
@jim,
You can check your kernel version by "uname -r".
I also built a rebased one:
https://people.canonical.com/~alexhung/LP1896482/Ubuntu-5.4.0-52.57/
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Public bug reported:
[Impact]
TGL systems wake up automatically from s2idle when connecting to a docking
station with a monitor. The wake-up events are generated when BIOS sets
ALL_MONITOR_OFF for power-saving on TGL systems.
[Fix]
A BIOS workaround is used to skip ALL_MONITOR_OFF with an _OSI
** Description changed:
- Some TGL systems wake up automatically from s2idle when connecting to a
- docking station with a monitor. The wake-up events are generated when
- BIOS sets ALL_MONITOR_OFF for power-saving on TGL systems.
+ [Impact]
+ TGL systems wake up automatically from s2idle when
You can also try Ubuntu OEM kernel:
https://wiki.ubuntu.com/Kernel/OEMKernel
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Title:
System froze after wake from sleep
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You can also try to use s3 (deep) instead of s2idle: echo deep | sudo
tee /sys/power/mem_sleep
to change back, simply reboot or "echo s2idle | sudo tee
/sys/power/mem_sleep"
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There are many i915 warnings in dmesg.txt
Oct 19 14:33:05 kernel: [ cut here ]
Oct 19 14:33:05 kernel: WARN_ON(is_mst && (port == PORT_A || port == PORT_E))
Oct 19 14:33:05 kernel: WARNING: CPU: 3 PID: 2246 at
drivers/gpu/drm/i915/display/intel_ddi.c:3179
The number of IRQ 9 (acpi) seems to be unreasonably high, i.e. 10 in
ProcInterrupts.txt
I tried on my laptop (command: "uptime ; cat /proc/interrupts | grep
acpi"), and it is 15859 after 13 mins (~8000 when uptime = 0 min). If
you see 10 right after booting, the hardware / firmware may be
The below is likely the reason that fn keys do not work, i.e. irq 9
(acpi) are disabled because it is not handled.
[9.932829] irq 9: nobody cared (try booting with the "irqpoll" option)
[9.932832] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-48-generic
#52-Ubuntu
[9.932833]
The id ELAN0633 has been added since Ubuntu-5.4.0-34.38. Please update
kernel (sudo apt update && sudo apt upgrade -y) and verify whether the
touchpad works.
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Hui Wang also provided some workaround for touchpad at LP:1899258. If
kernel updates do not fix touchpad problem, you can also try the kernel
parameters.
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I don't think amdgpu's actual_brightness works in the first place.
Did you try any of the following kerenl parameters?
acpi_backlight= [HW,ACPI]
acpi_backlight=vendor
acpi_backlight=video
If set to vendor, prefer vendor specific driver
A post at Dell's forum has a workaround solution using a kernel
parameter "snd_hda_intel.dmic_detect=0".
https://www.dell.com/community/Linux-General/Freezing-boot-
Ubuntu-20-04-Dell-G3-3590/m-p/7667770/highlight/true#M17469
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@azis-naufal,
#15 is where _PRW goes indeed, but my guess was wrong...
** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
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You can force to use s2idle instead of deep (s3). This might force the
system as in #5.
command: $ echo s2idle | sudo tee /sys/power/mem_sleep
If this works for you, this is a better solution than patching DSDT.
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_PRW requires knowledge of the hardware pin used for wake-up by lid, and
this is not available outside vendor themselves. We can, however, just
make a guess such as below
Method (_PRW, 3, NotSerialized)
{
Return (Package () {9, 3})
}
The attached is a patch for
Did you try "systemd-analyze time" or "systemd-analyze blame" to
identify the boot-time's bottleneck?
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Title:
Ubuntu slow boot
To manage
The ACPI's lid device "LID0" is not listed in /proc/acpi/wakeup, and it
can be the result of missing "_PRW" object in ACPI BIOS. It has only
_HID, _LID and _DSW objects such as below (extracted from acpidump.txt).
Device (LID0)
{
Name (_HID, EisaId ("PNP0C0D")
Method (_LID, 0,
This is a BIOS issue and a fix is required from OEM and is not from
Ubuntu.
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Title:
ThinkBook 14-IIL can't wake from sleep by opening lid
To
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Alex Hung (alexhung)
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Title:
[HP 635] Radeon 6310 brightness control does not w
** Description changed:
+ = SRU Justification =
+
+ [Impact]
+
+ The bug causes the EC driver to fail and ACPI events are no longer
+ handled by Linux kernel, i.e lid close no longer triggers suspends.
+
+ [Fix]
+
+ Upstream commit 03e9a0e05739cf reworks ec_install_handlers to avoid
+
That's great. Let's wait for the good news!
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Title:
Backlight adjustment doesn't work on Google Pixel Slate
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@jcline-physics,
can you give kernel in #24 a try?
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Title:
acpi event detection crashes
To manage notifications about this bug go to:
Information updates: the patch is now queued in 5.10.
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Title:
[HP 635] Radeon 6310 brightness control does not work
To manage notifications
A test kernel with target patches ready for SRU is available @
https://people.canonical.com/~alexhung/LP1896482/fixes/
The patch in #23 requires three precedent patches. See SRU.log file for
more details.
Note it is rebased Ubuntu-5.4.0-48.52 now.
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Bisecting points to the below commit. Ubuntu-5.4.0-47.51 requires more
than it without conflicting. Let me figure out which ones are also
required for SRU and I will build another kernel (and final one
hopefully) for testing
commit 03e9a0e05739cf872fee494b06c75c0469704a21
Author: Rafael J.
Next one:
https://people.canonical.com/~alexhung/LP1896482/937d1d5d752513b8/
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Title:
acpi event detection crashes
To manage notifications about
Next one is @
https://people.canonical.com/~alexhung/LP1896482/c271d18b523bb58e/
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Title:
acpi event detection crashes
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@jcline-physics,
Thanks for testing. The next is available @
https://people.canonical.com/~alexhung/LP1896482/31be3e3551d09f20/
** Changed in: linux (Ubuntu)
Status: Confirmed => In Progress
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Alex Hung (alexhung)
-
Thanks mfo for helping out how to disable secure boot and install kernel
I uploaded a test kernel @
https://people.canonical.com/~alexhung/LP1896482/0a8c35897f60b202/
There are 17 patches so it requires 4 times to identify the fixing
kernel patch. The included patches are listed in
It is a good idea to send your patch to below kernel's mailing lists so
this can be reviewed by broader audiences to confirm it will work in all
scenario.
INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
M: Jani Nikula
M: Joonas Lahtinen
M: Rodrigo Vivi
The warning messages occurred between "ACPI: EC: interrupt blocked" and
"ACPI: EC: interrupt unblocked". Let's try to apply all (17) mainline
patches to ACPI EC to Ubuntu-5.4.0-47.51.
If this solves the problems we can then bi-select to identify which
patches are the solution and then backport to
@afsverissimo,
You may want to file another bug for your brightness problem which may
have different root cause and thus different required information.
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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dmesg shows nothing of ath10k_pci (wifi driver).
Please run "sudo modprobe -r ath10k_pci ; sudo modprobe ath10k_pci" to
check whether wifi driver can be re-initialized?
You may want to download and run live session of Ubuntu 20.04.1 ISO to
verify whether Qualcomm Atheros QCA9377 works.
**
** Summary changed:
- cpu frequency stuck to max when pugging USB device
+ cpu frequency stuck to max when plugging USB device
** Summary changed:
- cpu frequency stuck to max when plugging USB device
+ cpu frequency stuck to max when plugging USB devices
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You can try the following utilities to see whether CPUs are occupied
before and after USB devices are plugged in
1. top - check whether any processes is running
2. watch -n1 cat /proc/interrupts - check whether any interrupts are generated
at abnormal rates
3. powertop - more details of power
The error messages are caused by BIOS bugs, and they cannot be fixed in
Ubuntu.
OC07 error in descriptions is declared but not defined in ACPI DSDT,
i.e. External (OC07, UnknownObj).
The OEMB in #6 has a checksum (i.e. one of OEMx) is a OEM-specific table and
that's probably used in Windows
#5 simply complains that ACPI BIOS can directly access I/O ports and
Linux kernel is not fond of it. The warnings are very often harmless.
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Title:
Sure I will update the information here.However, this will take a while,
i.e. patch review -> mainline kernel -> stable kernel -> Ubuntu focal
kernel.
It is the same as using the kernel parameter, and the patch will not
conflict with kernel parameter either.
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Title:
[HP 635] Radeon 6310 brightness control does not work
To manage notifications about this bug go
Please try the kernel @
https://people.canonical.com/~alexhung/LP1894667/
1. remove kernel parameter "acpi_backlight=video"
2. download all deb
3. install kernel by "sudo dpkg -i *.deb"
4. reboot
This should be the same as "acpi_backlight=video"
1. run "ls /sys/class/backlight"
2. verify
This is kind of expected since it is common that systems from 2011 use
ACPI video interface. You can add the kernel into /etc/default/grub to
make it consist across boots.
I will compile a linux kernel with a workaround of
"acpi_backlight=video" for testing. If this work I can submit to linux
Let's try manually whether backlight interfaces work.
cd /sys/class/backlight/radeon_bl0
# get max brightness
cat max_brightness
# get current brightness
cat brightness
# change current brightness, assuming max=12
echo 12 | sudo tee brightness
echo 6 | sudo tee brightness
Once done,
For modifying / adding kernel parameters, please refer to
https://wiki.ubuntu.com/Kernel/KernelBootParameters
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Title:
[HP 635] Radeon 6310
** Changed in: fwts (Ubuntu)
Status: In Progress => Fix Committed
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Title:
fwts 20.08.00 segmetation fault
To manage notifications about
After using apport-unpack for #8, acpidump looks good
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Title:
use builtin dump_acpi_tables.py in hookutils
To manage notifications about this
@ycheng-twn,
#10 and #11 are basically the same except orders of some tables; however
this is as expected.
the gz file of #8 contains a "single" plain text file. Shouldn't it be
one file for each log file?
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@ycheng-twn,
1. Is it normal that everything is in a plain text file?
2. There is an extra space for acpidump. This causes acpixtract to fail to
extract ACPI tables.
3. The content looks "reasonable", but /sys/firmware/acpi/tables/* are required
to byte-to-byte compare after 1 & 2 are fixed.
Please run "ls /sys/class/backlight/" to see what backlight interfaces
are available.
You may also want to try the kernel parameter for backlight such as
below
acpi_backlight= [HW,ACPI]
{ vendor | video | native | none }
If set to vendor,
Did you try to remove the kernel parameter "acpi_osi=linux"?
Please run "ls /sys/class/backlight/" to see what backlight interfaces
are available.
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Thanks Colin for the fix:
http://patchwork.ozlabs.org/project/fwts/patch/20200904161705.43950-1-colin.k...@canonical.com/
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Title:
fwts 20.08.00
The fix is included in Ubuntu-5.4.0-43.47 and later
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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Title:
int3403
You can use apt purge to remove installed kernel: sudo apt purge linux-
image-... linux-header-..., where ... is the version you want to remove.
** Changed in: linux (Ubuntu)
Status: Incomplete => Invalid
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Linux 5.8.5-050805, or any kernels on https://kernel.ubuntu.com/~kernel-
ppa/mainline/, is not a supported kernel version.
Kernel 5.8 is also used on groovy. Please download and install deb @
https://people.canonical.com/~alexhung/LP1893624/
Once installed, please verify errors and update bug
These object names look like "PCI Interrupt Link Device" but they are
not declared (further analysis requires acpidump log - sudo acpidump >
acpi.log). This is a BIOS bug which kernel can do little to help.
Fortunately, if you don't observe any obvious failures, these errors can
be ignored
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You can use the GUI app "keyboard shortcuts" to setup custom keys, or
you can manually modify hwdb files (ex.
/lib/udev/hwdb.d/60-keyboard.hwdb).
The following tutorials may provide some help.
== Modify keymap ==
* cd /lib/udev/hwdb.d/
* edit keymap file (60-keyboard.hwdb)
* add a change, ex
You can also try the unload & reload Bluetooth driver by "sudo modprobe
-r btusb ; sudo modprobe btusb". It may save you some time.
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Title:
Perhaps vicamo's comments #19 on LP:1891405 will help
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Title:
Qualcomm Atheros QCA6174 [168c:003e] Subsystem: Killer 1435 Wireless-
AC
vicamo posted a probable solution @
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891405. See #19
for more details
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Title:
ath10k_pci
This sounds like Bluetooth hardware malfunctions until a full reset (or
completely powered off).
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Title:
Bluetooth doesn't turn on
To manage
This should be an ACPI BIOS bug, and there is not much to be done in
Linux.
An acpidump log (sudo acpidump > acpi.log) is required for more analysis
of what functions are impacted.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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0. install acpidbg - sudo apt install linux-tools-`uname -r` linux-
tools-generic
trigger and check which of the following cause screen freeze
1. sudo acpidbg -b "e EV5 1 0" ("2 0" for brightness down)
2. sudo acpidbg -b "e \_SB.PCI0.GFX0.BRT6 1 0" ("2 0" for brightness down)
3. sudo acpidbg -b
please refer to https://wiki.archlinux.org/index.php/backlight for more
info on /sys/class/backlight/ interfaces
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Title:
Brightness key freeze
The flow of brightness hotkey is as follows
key pressed -> ec triggers events -> bios/os performs a series of
following functions -> ... -> ACPI EV5 -> ACPI BRT6 -> ACPI Notify LCD
0x86/0x87 -> ACPI VGA driver generates keycodes -> userspace write to
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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Title:
no intel_backlight file
To manage notifications about this bug
This can be related to BIOS or to kernel driver.
Could you please run "ls /sys/class/backlight/" for backlight sysfs, and
attach output of "sudo acpidump > acpi.log" for BIOS analysis.
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Additional information with kaihengfeng's comment.
dmesg shows wifi stops working after suspend and resume. wifi driver
also tried to restart hardware but failed:
[ 459.548998] e1000e: enp0s25 NIC Link is Down
[ 461.601935] iwlwifi :03:00.0: Error sending REPLY_SCAN_ABORT_CMD: time
out
Since this system is upgraded from 18.04, it is also worthwhile to boot
20.04.1 USB and verify this issue. Suspend and resume can be tested in
live session as well.
** Summary changed:
- unable to coonect to wifi
+ unable to connect to wifi
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dmesg shows "video.use_native_backlight=1" is used. This kernel
parameter is no longer available. You can replace with "acpi_video"
acpi_backlight= [HW,ACPI]
acpi_backlight=vendor
acpi_backlight=video
If set to vendor, prefer vendor specific driver
(e.g.
Do you mean you cannot adjust brightness with either hotkeys or GUI?
intel_backlight is one of possible backlight interfaces. You can run "ls
/sys/class/backlight" to find out what your system has.
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** Changed in: linux (Ubuntu)
Status: Confirmed => Won't Fix
** Changed in: linux (Ubuntu)
Status: Won't Fix => Invalid
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Title:
You can try "sync" to force writing cache to USB drive. It is easier to
remember.
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Title:
wmi_bus wmi_bus-PNP0C14:00: WQBC data block query
You can also try to verify sysfs interfaces such as below example
$ ls /sys/class/backlight/
intel_backlight
$ cd /sys/class/backlight/intel_backlight
$ cat max_brightness
12
$echo 12 | sudo tee brightness
$echo 6 | sudo tee brightness
If this does not change brightness, something
These ACPI warnings are harmless most of time, but that also depends on what
ACPI BIOS does on your systems.
=
[ 0.659825] wmi_bus wmi_bus-PNP0C14:00: WQBC data block query control method
not found
WQBC is required according to WMI spec and implementation on
For waking up unexpected issues, you can try to disable wakeup devices
via /proc/acpi/wakeup interfaces.
See examples @ https://askubuntu.com/questions/148481/how-do-i-prevent-
immediate-wake-up-from-suspend-and-or-hibernation
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Ubuntu 20.04.1 is going to be released on Aug 06 (tomorrow). You can
also give it a try too.
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Title:
poweroff not working after apt upgrade
To
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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Title:
Qualcomm Atheros QCA9377 [168c:0042] Subsystem [1028:1810] Ubuntu
A fresh install would certainly help. It is also possible that
additional drivers can cause this; NV proprietary driver can be an
example of it.
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Performance degrades can also related to power saving. Try kernel
parameter "pcie_aspm=off" to verify whether it improves
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Title:
Qualcomm
#19 and forward assume kernel 5.3.0-61 is good, according to bug
description; however, it may worthwhile to give it:
https://people.canonical.com/~alexhung/LP1888570/Ubuntu-5.3.0-61.55/
Especially, all tries were bad kind of worrying...
If it is good, the next one is
@gneisss,
I forgot to remove to *tool*.deb. They aren't needed.
next one: https://people.canonical.com/~alexhung/LP1888570/115f51d0fa11/
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Title:
Thanks. Next one is
https://people.canonical.com/~alexhung/LP1888570/0affe1fa22b2/
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Title:
poweroff not working after apt upgrade
To manage
You can also update linux-firmware (from
http://security.ubuntu.com/ubuntu/pool/main/l/linux-firmware/) and / or
update system BIOS (do it with cautions).
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It is odd that lspci shows you have a Qualcomm Atheros QCA9377 with
driver ath10k_pci, but dmesg shows nothing about ath10k as QCA9377 never
exists.
Can you run lspci -v to confirm QCA9377 and run "sudo modprobe -r
ath10k_pci ; sudo modprobe ath10k_pci" to unload and reload wifi driver.
Also run
@gneiss,
Thanks. Next one is
https://people.canonical.com/~alexhung/LP1888570/d37a638086c1/
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Title:
poweroff not working after apt upgrade
To
*** This bug is a duplicate of bug 1810183 ***
https://bugs.launchpad.net/bugs/1810183
You may need to report this to upstream or even to ASUS to support this
device. Vendor may decide to support it on Linux with enough request.
** This bug has been marked a duplicate of bug 1810183
Correction to #19. The kernel is available @
https://people.canonical.com/~alexhung/LP1888570/19357b3b0835/
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Title:
poweroff not working after
Thanks for reporting this, and your help is needed to identify the patch
that causes this regression.
There are 260 patches between 5.3.0-61 & 5.3.0-62, and it requires some
testing with bisects (see below).
$ git bisect start
$ git bisect good Ubuntu-5.3.0-61.55
$ git bisect bad
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