A patch was sent for reviews: https://marc.info/?l=linux-
pm=159226080621530=2
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https://bugs.launchpad.net/bugs/1882823
Title:
int3403 thermal INT3403:00
Status in linux
https://marc.info/?l=linux-pm=159199577712570=2
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Title:
int3403 thermal INT3403:00
Status in linux package in Ubuntu:
Confirmed
I sent an email asking about 0x91 to mailing list. I will update here
when information is available.
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Title:
int3403 thermal
@junocomp,
These mailing lists don't like HTML-formated emails. You need to send
emails in text, and this depends on the email client program you are
using.
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This is not related to audio driver but is related to thermal driver
"int3403_thermal.c". It supports upto event 0x90 (See line 21 & line 64
@
https://elixir.bootlin.com/linux/v5.7.1/source/drivers/thermal/intel/int340x_thermal/int3403_thermal.c).
Intel may have added a new event that is yet
In fact I suspect EC firmware may be mis-behaving. You can try to remove
all power sources (AC & battery) for a min to reset EC.
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https://bugs.launchpad.net/bugs/1879082
BAT1 is the correct one according to acpi.log in #12.
There are no obvious code error in BIOS, but let's try to see whether
kernel correct reports what BIOS reports.
When AC is connected:
kernel's battery status: $ cat /sys/class/power_supply/BAT0/status
BIOS battery status: sudo acpidbg -b
When my wifi card has issues after long usage, I re-init wifi driver
like "modprobe -r iwlwifi ; modprobe iwlwifi", and it may save some
troubles rebooting.
I don't have Intel wifi but this works on my Qualcomm Atheros QCA6174
(which uses ath10k_pci).
You may also clear the logs in /var/log/
It looks like OS is picking up the virtual (i.e. dummy) battery from
BIOS. Do you also observe this bug when booting with Ubuntu live on a
USB drive?
Can you run "ls /sys/class/power_supply/" to check whether there are
other batteries found by kernel? Usually BIOS likes starting names from
BAT0.
ACPI consists of many tables. Two types of them are DSDT and SSDT.
DSDT is mandatory, and SSDTs are addon to DSDT and are optional. SSDT is
/ can be loaded according to hardware config during boot time. In the
case of this system, the ACPI objects that are erroneous are both
declared in DSDT and
You can disable wakeup by modifying "/proc/acpi/wakeup" in Linux
1. get all wakeup sources - "cat /proc/acpi/wakeup"
The results are something like
Device S-state Status Sysfs node
PEG0 S4*enabled pci::00:01.0
PEGP S4*disabled pci::01:00.0
PEG1 S4
This is usually the result of duplicated name declaration in ACPI BIOS,
and there are usually no harms.
An ACPI dump (sudo acpidump > acpi.log) will be helpful for further
analysis.
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@esanya,
Thanks for updating the results. Hopefully the HW failure is the root
cause of the brightness problem that acer can fix.
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This can be similar to LP:1872351
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https://bugs.launchpad.net/bugs/1875437
Title:
Qualcomm Atheros QCA6174 [168c:003e] subsystem [1a56:1535] WIFI stops
working and
** Changed in: linux (Ubuntu)
Status: Incomplete => Invalid
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Title:
lubuntu 20.04 lts can't find touchpad
Status in linux
Try to reinitialize wifi driver: "sudo modprobe -r iwlwifi ; sudo
modprobe iwlwifi" after sleep and resume.
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Title:
Wifi doesnt
** Description changed:
+ [Impact]
+
+ amdgpu generates assert warning messages when retimer is not supported.
+ This behaviour can cause confusions to users.
+
+ [Fix]
+
+ This is fixed by commit a0e40018dcc3f59a. It silences ASSERTs by
+ outputing a debug message and exiting when retimer is
It may worth a shot to ask on Lenovo's forum
(https://forums.lenovo.com/t5/English-Community/ct-p/Community-EN).
Perhaps they will forward this to developers who can take a look and
release a fix for everybody.
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No ACPI interrupts means either BIOS is broken or system is using other
mechanism like scancode from KBC/EC.
Checking scancode is easy: sudo showkey -s
Also checking interrupts: watch -n1 cat /proc/interrupts <-- usually IRQ 1
If there aren't events from KBC/EC, this is a BIOS or a KBC/EC bug.
The patch was intended to fix Intel RC6 power saving that failed after a
security fix. That implies that zoom may have issues with Intel RC6.
I manually built Ubuntu-5.4.0-21.25
(https://people.canonical.com/~alexhung/LP1873179/focal/) for testing.
The i915 RC6 fix are different. Let's see if
i915.enable_rc6 has been removed since kernel 4.16
See https://patchwork.freedesktop.org/patch/191386/ or commit
fb6db0f5bf1d4d3a4a for more details
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ent in
execlists_user_end()
BugLink: https://bugs.launchpad.net/bugs/1853044
Link: https://gitlab.freedesktop.org/drm/intel/issues/614
Signed-off-by: Seth Forshee
Acked-by: Alex Hung
Acked-by: Colin Ian King
Signed-off-by: Khalid Elmously
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** Bug watch added: gitlab.freedesktop.org/drm/intel/issues #
"sudo echo "disabled" > /sys/class/thermal/thermal_zone0/mode" is not
correct.
Try
echo "disabled" | sudo tee /sys/class/thermal/thermal_zone0/mode
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There are four patches added to i915 from Ubuntu-5.3.0-45.37 to
Ubuntu-5.3.0-46.38, like in
https://people.canonical.com/~alexhung/LP1873179/patches/
I built four kernels, each with one patch removed:
https://people.canonical.com/~alexhung/LP1873179/
For example,
p-1 = Ubuntu-5.3.0-46.38 with
If ACPI approach is used, there are also two different approaches used -
ACPI standard or OEM-specific .
ACPI defines events from brightness up and down, and it is
video/brightnessdown BRTDN 0087 & video/brightnessup BRTUP 0086.
The can be checked by running "acpi_listen" and pressing
The brightness interface (/sys/class/backlight/intel_backlight) is
working, so it must be the missing events that cause your problem.
Ubuntu needs keycodes (KEY_BRIGHTNESSDOWN 224 & KEY_BRIGHTNESSUP 225),
and this can be from either scancode or ACPI events. Laptops usually use
ACPI for
The same wifi used on one of the system I have, and I was able to
reproduce the same error once a while. When this warning message
occurred, the system wouldn't connect to my router, either.
I was able to workaround this by "sudo modprobe -r ath10k_pci ; sudo
modprobe ath10k_pci"
I compared
** Changed in: linux (Ubuntu)
Status: Triaged => Won't Fix
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Title:
dmseg report multiple "ACPI Error" and "ACPI BIOS Error"
try "rfkill list" to list all radio devices, such as
$ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
run "rfkill block 2" to disable it, and "run kill unblock 2" to enable
it, assuming your
This is a warning message generated by sta_info.c (See details @
https://elixir.bootlin.com/linux/v5.4.32/source/net/mac80211/sta_info.c#L1059)
Does your wifi return to normal after disabling and enabling?
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@moreje,
Did you try re-initialize the NIC driver with following commands?
sudo modprobe -r e1000e && sudo modprobe e1000e
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https://bugs.launchpad.net/bugs/1872408
Title:
If you still have older kernels, it would be helpful to identify which
previous kernel does not have this problem. See
https://askubuntu.com/questions/82140/how-can-i-boot-with-an-older-
kernel-version/584738#584738
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A SRU was sent for reviewing. Your help will be needed to test proposed
kernel before next kernel updates later.
This patch is contained in kernel 5.7 rc1 and it is likely to be
included in next Ubuntu release without backporting.
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Kernel 5.7rc1 is released, and it can be downloaded @
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.7-rc1/
There are some changes related to amd backlight from 5.6 to 5.7rc1 such
as the following (list may be not completed), and it surely worthwhile
to give 5.7rc1 a try.
A kernel, based on Ubuntu-5.4.0-21.25 + a0e40018dcc3f, is available for
testing @ https://people.canonical.com/~alexhung/LP1871248/
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The errors (or warnings) are generated by ASSERT like the following
statement.
if (!i2c_success)
/* Write failure */
ASSERT(i2c_success);
Details @
https://elixir.bootlin.com/linux/v5.4.31/source/drivers/gpu/drm/amd/display/dc/core/dc_link.c#L1737
I am not an amdgpu expert but I don't
** Tags removed: verification-needed-eoan
** Tags added: verification-done-eoan
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https://bugs.launchpad.net/bugs/1869235
Title:
Ryzen 3rd gen (3900X) ECC support missing
@araemo,
Thanks for reporting.
I will prepare a SRU for eoan kernel (5.3). Can you try the below kernel
(Ubuntu-5.3.0-42.34 + cherry-picked e53a3b267fb0 & 3e443eb353ed). If
your problem goes away I will send the patches for SRU reviews.
https://people.canonical.com/~alexhung/LP1869235/
We may
Thanks for opening a bug and testing. Let's mark it fix released. Please
re-open if you have found it fails again.
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
** Changed in: gnome-session (Ubuntu)
Status: New => Fix Released
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Please try latest mainline kernel (https://kernel.ubuntu.com/~kernel-
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If this still fails, please upload log file from acpidump (sudo acpidump
> acpi.log). Usually ACPI battery are named BAT"0" (just a convention).
Let's check whether BIOS has more than one batteries in
It looks like BIOS issue. An acpidump log will help (sudo acpidump >
acpi.log)
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https://bugs.launchpad.net/bugs/1865170
Title:
lid close simply turns off laptop screen
It seems that controller_id and use_smooth_brightness are from atombios
(vbios?) and hardware itself; especially atombios (vbios?) are
responsible for many VGA settings and it's a black box.
Good news is that kernel 5.7 will include some backlight enhancement
Does this system have two AMD graphic cards? can you please upload the
output of "lspci -vvnn"?
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Title:
BrightnessOutofRange:
I tried Ubuntu Mate 19.10 live on my testing system (AMD Ryzen 5 2500U
with Radeon Vega Graphics - seems to be the same AMD CPU on your Acer),
and brightness control works without any problems even though
actual_brightness has a fixed and higher value.
The below is the latest function can be
I tried 19.10 and 20.04 (daily build) on an AMD platform (AMD Ryzen 5
2500U with Radeon Vega Graphics), and the backlight works without
problems.
This platform has the same symptom as described in the bug description -
actual_brightness is a fixed and higher value, and it does not change
with
In theory, max_brightness and brightness are all needed for backlight
control. I am using stock Ubuntu 19.10 & 20.04 with gnome desktop. Are
you using anything special?
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Some system does not work well with s2idle, but they might work with
regular suspend (s3).
Please try "echo deep | sudo tee /sys/power/mem_sleep" to switch to s3,
and verify whether this is s2idle related or a power management issue
with e1000e driver.
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There are a few s2idle fixes and workaround in mainline kernel, and it
may worth a try. If it can fix your problem, fixes can be backported to
bionic
latest mainline kernel: https://kernel.ubuntu.com/~kernel-
ppa/mainline/v5.6-rc4/
instructions:
Fortunately, all of the failing ACPI methods are optional, and there are
good chances that Linux / Ubuntu will work without them. There are three
types of devices *might* be affected according to the error messages:
1. USB (\_SB.PCI0.XHC.RHUB...)- but USB ports and devices should just-
work
There are two types of ACPI errors observed: AE_ALREADY_EXISTS and
AE_NOT_FOUND
The former, AE_ALREADY_EXISTS, usually happens
1) when BIOS loads multiple SSDTs (in /sys/firmware/acpi/tables) that
contains the objects with the same names (and usually the same functions
too). Naming conflicts
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Alex Hung (alexhung)
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Title:
dmseg report multiple "AC
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Alex Hung (alexhung)
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Title:
CPU0 is busy after S3 in Dell Precis
** Also affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: New
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Title:
CPU0 is busy after S3 in Dell Precision
apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330678/+files/ProcModules.txt
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apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330671/+files/IwConfig.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330682/+files/WifiSyslog.txt
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apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330676/+files/ProcEnviron.txt
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apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330675/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330677/+files/ProcInterrupts.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330670/+files/CurrentDmesg.txt
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apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330679/+files/PulseList.txt
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apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330673/+files/Lsusb.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330674/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330680/+files/RfKill.txt
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apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330669/+files/CRDA.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330681/+files/UdevDb.txt
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** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1864527/+attachment/5330672/+files/Lspci.txt
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apport information
** Tags added: apport-collected bionic
** Description changed:
CPU0 (and sometimes other cores too) is not entering C10 half of the
time when system is idle. "top" shows a touchpad driver takes 5%~6% of
CPU usage, and "/proc/interrupts" reveals considerable interrupts
Public bug reported:
CPU0 (and sometimes other cores too) is not entering C10 half of the
time when system is idle. "top" shows a touchpad driver takes 5%~6% of
CPU usage, and "/proc/interrupts" reveals considerable interrupts from
the touchpad device. This results in additional 4~5 watt power
** Changed in: linux (Ubuntu Trusty)
Status: Triaged => In Progress
** Changed in: linux (Ubuntu Trusty)
Assignee: (unassigned) => Alex Hung (alexhung)
** Changed in: ubuntu-kernel-tests
Assignee: (unassigned) => Alex Hung (alexhung)
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This is fixed by a backported patch of 8edc6e1688f. Kernel and patch
file is available @ https://people.canonical.com/~alexhung/LP1775378/
The result is as below:
$ sudo ./fanotify06
tst_device.c:87: INFO: Found free device 0 '/dev/loop0'
tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2
The attached is a backported patch for fanotify09 for trusty kernel. The
test result was improved (as below) but it doesn't eliminate all
failures.
$ sudo ./fanotify09
tst_test.c:1118: INFO: Timeout per run is 0h 05m 00s
fanotify09.c:161: INFO: Test #0: Events on children with both inode and
** Changed in: linux (Ubuntu Bionic)
Status: New => Invalid
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Title:
fanotify09 test case 0 in LTP syscall test failed with T
The problem has been fixed by commit (upstream): d90a10e2444b "fsnotify:
Fix fsnotify_mark_connector race"
This is also included in bionic kernel
(b75e7fe93538ef420bb1e5f68b8c3b3525a33e73) since Ubuntu-4.15.0-24.26. It
is cannot be reproduced anymore, either.
Note: getrandom02 is fixed in
** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1810702
Title:
HP mobile workstations with hybrid graphics
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Title:
HP mobile workstations with hybrid
ux drivers
> aren't able to support this feature.
>
> The OEM _OSI string "Linux-HPI-Hybrid-Graphics" is used by BIOS to
> implement dGPU direct output to external monitors.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+sour
** Summary changed:
- 4HP mobile workstations, with hybrid graphics support, dGPU can not directly
output to external monitors
+ HP mobile workstations, with hybrid graphics support, dGPU can not directly
output to external monitors
** Summary changed:
- HP mobile workstations, with hybrid
ment
dGPU direct output to external monitors.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Alex Hung (alexhung)
Status: Incomplete
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Alex Hung (alexhung)
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I recalled trying the firmware in 16.04 (.5?) and it worked. You can
boot from USB and copy brcmfmac4356-pcie.bin.
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https://bugs.launchpad.net/bugs/1772624
Title:
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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https://bugs.launchpad.net/bugs/1787058
Title:
ThinkPad systems have no HDMI sound
** Summary changed:
- Some ThinkPad systems no HDMI sound when using the nvidia GPU
+ ThinkPad systems have no HDMI sound when using the nvidia GPU
** Tags added: originate-from-1756020 sutton
** Description changed:
- Some ThinkPad systems have a power-saving feature that turns off HDMI audio
** Changed in: hwe-next
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1773299
Title:
Dell systems crash when disabling Nvidia dGPU
Status in HWE
-HDMI-Audio"
which needs enabling in Linux kernel too.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: High
Assignee: Alex Hung (alexhung)
Status: In Progress
** Tags: originate-from-1756020 sutton
** Changed
** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Released
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https://bugs.launchpad.net/bugs/1773295
Title:
False positive ACPI _PRS error messages
Status in
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Title:
False positive ACPI _PRS error messages
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Title:
Dell systems crash when disabling
** Tags added: originate-from-1741178 somerville
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Title:
False positive ACPI _PRS error messages
Status in HWE Next:
New
Status
an _OSI string, Linux-Dell-Video, was used in BIOS as
a workaround in Linux.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Alex Hung (alexhung)
Status: New
** Tags: originate-from-1741414
r messages "ACPI Exception:
AE_NOT_FOUND, Evaluating _PRS" in kernel by default does not make sense,
and they should be muted by default.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Alex Hung (alexhung)
Status: New
** Changed in: linux (Ubuntu)
A
** Changed in: hwe-next
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1705169
Title:
Hotkeys on new Thinkpad systems aren't working
Status
** Tags removed: verification-needed-xenial verification-needed-zesty
** Tags added: verification-done-xenial verification-done-zesty
** Changed in: hwe-next
Status: In Progress => Fix Committed
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** Changed in: hwe-next
Status: Fix Committed => Fix Released
** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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** Changed in: hwe-next
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu)
Status: In Progress => Fix Committed
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** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1697116
Title:
Power button does not work on Latitude 7480
Public bug reported:
This includes mic-mute, bluetooth, video switch and wireless on/off
** Affects: hwe-next
Importance: High
Assignee: Alex Hung (alexhung)
Status: In Progress
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: originate
** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial
** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Committed
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Assignee: Alex Hung (alexhung)
Status: In Progress
** Tags: originate-from-1583465 somerville
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Alex Hung (alexhung)
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (
Public bug reported:
When power button is pressed, a menu should pop up or the system should
enter suspend; however, neither occurs.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Alex Hung (alexhung)
Status: Incomplete
** Changed in: linux (Ubuntu)
Assignee
I received a Yoga 260 and verified the patches in #15 (now in 4.10rc7).
As I flipped the screen, acpi_listen indicated it received an event as
below:
~$ acpi_listen
PNP0C14:00 00a1
video/tabletmode TBLT 008A 0001
This is from HKEY event 0x60c0. However, this system can
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