Public bug reported:
The laptop LCD backlight brightness level is not preserved. The screen
brightness always gets reset to 2-steps below the maximum level after
login or resume from suspend. This is particularly annoying when working
on battery, because after each resume, I have to make screen da
Public bug reported:
I noticed that sometimes my Ubuntu 18.10 system feels sluggish. The
other times everything works fine. I don't know what triggers this weird
state. Suspend / resume? Maybe.
At first I thought this was maybe just a "perception issue", but then
when the sluggishness happened ag
Aaaah, I can see plenty of this in syslog:
Oct 14 22:30:59 p5520 kernel: [ 9481.033687] CPU3: Package temperature above
threshold, cpu clock throttled (total events = 5845)
Oct 14 22:30:59 p5520 kernel: [ 9481.033688] CPU7: Package temperature above
threshold, cpu clock throttled (total events =
BTW, when the system is in this weird state, CPU fans are running at the
lowest speed (but running) and never go to their max speed, even under
heavy CPU load like compiling stuff.
Is there a hidden energy saving thing that tries to keep my CPU clock
low / voltages low at high load?
--
You recei
> Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
It started happening after upgrading from 18.04 to 18.10.
> Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.c
Update: I got the "package temperature above threshold" again (still
using 4.18.0-10 kernel), but it did not cause visible performance loss
and i7z still shows the CPU freq can go up to ~3.8 GHz easily. So maybe
these messages are not related.
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Is it normal that C-states percentages reported by i7z don't sum up to 100%,
but exceed it?
Under load, I frequently get C0% close to 99%, but at the same time Halt is at
about 40-60%.
Also when C0 is >90, the frequency of cores goes DOWN. This looks totally
reversed to me.
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And as soon as I hit "rebuild project" in the IDE, the frequencies go
immediately down from 2.8 GHz to about 1.2-1.5 GHz now.
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Title:
Erratic beh
Huh, another surprise. After running my infinte loop for the time I
wrote the previous post, suddenly it "magically" fixed itself and now
one core reports 100% C0 and ~6% C1, temperature 57, voltage 0.94. The
frequency did not go above 2.8 GHz, though.
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The problem exists in 4.19.rc7 I just tried.
So overall, I'm not sure now if this is a "different state" of the
system, or just a normal behavior of it.
Fresh after boot, the CPU is willing to use frequencies above 3 GHz. The
same when I launch my IDE (IntelliJ idea for the first time). Then when
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
Erratic behavior of intel pstate CPU frequency control
To manage no
More observations:
The problem does not happen if I disable Intel speed-step in BIOS.
In this case, the CPU frequency of all cores goes to 2998 MHz whenever under
load, and stays stable regardless of how long the load is applied.
The problem still happens even if intel_pstate=disable is passed
Perf data collected for the run above.
** Attachment added: "perf.data"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797802/+attachment/5203562/+files/perf.data
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I collected some perf data for further analysis.
I run a simple arithmetic multi-core benchmark.
The benchmark is 100% CPU bound - it adds 2 integers.
perf record java -jar target/benchmarks.jar
org.ttnr.pmato.e2.cpumem.ArithmeticsBenchmark.add -wi 0 -i 40 -t 4 -f 1
# JMH version: 1.21
# VM vers
Temperatures:
Before the performance drop: up to 97 C
After performance drop: 52-55 C
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Title:
Erratic behavior of intel pstate CPU frequency cont
** Summary changed:
- Erratic behavior of intel pstate CPU frequency control
+ Erratic behavior of CPU frequency control under load
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Title:
Erra
Disabling thermald with:
sudo systemctl stop thermald
right after boot, before applying any load seems to help getting stable
performance.
A thermald bug?
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Can you reassign this bug to thermald package?
Or should I create a new one?
Thanks
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Title:
Erratic behavior of CPU frequency control under load
I'm attaching the crashdump. Core dump truncated, in order to not leak
any sensitive information (VPN passwords, etc). It looks like there is a
stacktrace there - I hope it helps.
** Attachment added: "_usr_sbin_NetworkManager.0.no_core_dump.crash"
https://bugs.launchpad.net/ubuntu/+source/net
Is there a way to configure only NetworkManager to use tcmalloc
permanently?
I tried adding LD_PRELOAD to /etc/init.d/network-manager or /etc/init
/network-manager.conf and it does not work.
However setting LD_PRELOAD tcmalloc globally for the whole system in
/etc/ld.preload.conf does fix network
How can I get debug symbols for NetworkManager?
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Title:
Network manager crashes and restarts 2 seconds after establishing a
VPN connection
To
1.
fwupdmgr get-devices
Synaptics VMM3320 inside Dell WD15/TB16/TB18 wired Dock
DeviceId: 7b3cbc344094ace839263dd4711c84ea99bb6dc3
ParentDeviceId: 84edf044a6b53037732cfc7591b65a8d36384cc9
Guid: 152a9833-41e6-5c21-9dde-0ff8984f3e20
Guid: 0a5
1.
fwupdmgr get-devices
Synaptics VMM3320 inside Dell WD15/TB16/TB18 wired Dock
DeviceId: 7b3cbc344094ace839263dd4711c84ea99bb6dc3
ParentDeviceId: 84edf044a6b53037732cfc7591b65a8d36384cc9
Guid: 152a9833-41e6-5c21-9dde-0ff8984f3e20
Guid: 0a5
4) (after disabling dell plugin and reboot)
fwupdmgr get-devices
Precision 5520 Thunderbolt Controller
DeviceId: 75ab74de304604584bf3794cd8a7051b0e57d34a
Guid: c5364422-2ec3-5092-b30e-03bdb1a53e4a
Summary: Unmatched performance for high-speed I/O
After unplugging displays from the dock and rebooting:
fwupdmgr get-devices
Precision 5520 Thunderbolt Controller
DeviceId: 75ab74de304604584bf3794cd8a7051b0e57d34a
Guid: c5364422-2ec3-5092-b30e-03bdb1a53e4a
Summary: Unmatched performance for high-s
After disabling "dell" plugin, it doesn't blank out my screens any-more.
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Title:
Firmware update daemon resets Dell TB16 dock soon after every fi
Tested it today and indeed it looks like it was fixed. Thanks!
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Title:
Network manager crashes and restarts 2 seconds after establishing a
VPN
Bump. Any decision here? Looks like a trivial fix to include, but
severity is pretty high.
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Title:
ufraw-batch crashes after processing the first
** Summary changed:
- Firmware update daemon resets Dell TB16 dock soon after every first login
+ Firmware update daemon resets displays connected to Dell TB16 dock soon after
every first login
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Public bug reported:
My Downloads folder is encrypted by fscrypt. I can save and read files
in there. However, for Firefox - all downloads fail and it says only
"download failed" and offers a button to retry which fails again. After
a failed attempt, a file is created with a proper file name but
I have the same issue. Tried today on daily Ubuntu 18.10 build run from live
USB.
The system boots fine or resumes fine with tb16 sick attached. It also survives
disconnecting the dock.
But it does not survive hotplugging the dock - I get a freeze where I
can only move the mouse pointer, but t
Unfortunately I no longer have the WD15 dock. I switched to TB16 and it
also has some hotplugging issue (there is a separate launchpad ticket
reported by others).
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Public bug reported:
When system boots up with TB16 dock connected, it detects all
peripherals and displays properly. The login screen gets displayed on 3
displays. After providing a password and logging in, all 3 displays go
blank for a short time (< 5 seconds) and then the desktop appears on all
Removing fwupd package completely fixes the problem.
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Title:
Firmware update daemon resets Dell TB16 dock soon after every first
login
To mana
BTW: The problem existed also on Ubuntu 18.04, so this is not a new thing.
Kernel version seem to not have any influence. Tried many kernels ranging from
recent 4.15.x, 4.17.19, through 4.18.8, to the newest 4.19.rc4.
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Looks like it got solved at least for me on recent Ubuntu 18.10 with the
official kernel. Looks like now hotplugging Dell TB16 dock works fine on
Precision 5520.
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It is happening for me in Ubuntu 18.10.
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Title:
tracker-extract crashed with signal 31 in chdir()
To manage notifications about this bug go to:
Public bug reported:
It seems there is a known issue in ufraw-batch that causes a SIGSEGV after
closing the file.
Because of this, ufraw-batch is unusable.
Fortunately, there is a trivial patch available:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=898297
I downloaded ufraw sources, appl
Public bug reported:
When trying to get on a company VPN, the connection is initially
established and works (I can access intranet websites), but after ~1-2
seconds from starting VPN connection the Network Manager seems to crash
and restart, taking all connections down. This makes VPN totally
unus
The problem seem to exist only if the laptop is connected to wired connection
through TB16 dock.
Otherwise, when on WiFi, VPN connects fine and stays stable.
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Tried rebooting the laptop / replugging the dock / rebooting the dock. No
change.
My TB16 firmware is up-to-date.
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Title:
Network manager crashe
Dell Precision 5520. Running Intel graphics. Nvidia card is turned off
(unused).
I'll try that and I'll let you know. Thanks for help.
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Title:
Ok, I did some debugging and this looks really weird.
First, trying to run NetworkManager --debug manually:
[1538138381.5570] audit: op="connection-activate"
uuid="1a43441b-6b26-4e0c-8343-976afcf790fd" name="DataStax" pid=3717 uid=1001
result="success"
[1538138381.5755]
vpn-connection[0x55c
Retried a few times and it works fine under valgrind.
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Title:
Network manager crashes and restarts 2 seconds after establishing a
VPN connectio
Looks like a bug in the memory allocator.
Running fine under tcmalloc_minimal:
root@p5520:/home/pkolaczk# export
LD_PRELOAD="/usr/lib/x86_64-linux-gnu/libtcmalloc_minimal.so.4"
root@p5520:/home/pkolaczk# NetworkManager --debug
[1538139465.9143] NetworkManager (version 1.12.2) is starting... (af
apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1701499/+attachment/4906423/+files/ProcEnviron.txt
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Public bug reported:
I'm using Dell Precision 5520 with Ubuntu 17.04.
If I first start a Unity session and then connect Dell WD15 USB-C dock
with an external diplay plugged in, the system detects it properly and
all the things work flawlessly (ethernet, external keyboard, external
display, extern
apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1701499/+attachment/4906422/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "JournalErrors.txt"
https://bugs.launchpad.net/bugs/1701499/+attachment/4906421/+files/JournalErrors.txt
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** Attachment added: "My syslog from today"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1701499/+attachment/4906424/+files/syslog
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Tit
I did apport-collect immediately after filing the bug.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
System often
Interestingly, this did not happen in Ubuntu 17.04, but started to
happen after I upgraded to 17.10.
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Title:
openvpn doesn't reconnect after suspe
Like this:
/etc/fwupd/daemon.conf
[fwupd]
# Allow blacklisting specific devices by their GUID
# Uses semicolons as delimiter
BlacklistDevices=
# Allow blacklisting specific plugins
# Uses semicolons as delimiter
BlacklistPlugins=test;dell
# Maximum archive size that can be loaded in Mb, with 0
I have the same bug on Dell Precision 5520 and Ubuntu 17.04 with either
officially supported kernel 4.10.0-21 as well as mainline kernel 4.11.1.
[0.037469] ACPI Error: [\_SB_.PCI0.XHC_.RHUB.HS11] Namespace lookup
failure, AE_NOT_FOUND (20170119/dswload-210)
[0.037476] ACPI Exception: AE_N
I confirm the bug exists on kernel 4.11.1 and Dell precision 5520 with
Nvidia Quadro 1200M:
[6.658188] nouveau :01:00.0: fb: 4096 MiB GDDR5
[6.658219] nouveau :01:00.0: bus: MMIO read of FAULT at 10ac08
[ IBUS ]
[6.658271] nouveau :01:00.0: priv: HUB0: 10ecc0
After a week of testing v4.14-rc2, the conclusions remain the same:
- System doesn't freeze when booting up and logging in with the dock attached.
- Ethernet doesn't connect automatically on boot / after login, manual
intervention required.
- System doesn't wake from suspend if the dock was discon
Tried posting to linux-usb mailing list but I got no answer back. Any
other ways to report this problem?
The problem still exists with kernels 4.13.2 and 4.12.13.
I updated BIOS to 1.5.0 released today and also applied a fresh firmware update
to WD15 from Dell (using Windows, because Linux can't
Also, I've read this on another USB ticket in bugzilla:
All USB bugs should be sent to the linux-...@vger.kernel.org mailing
list, and not entered into bugzilla. Please bring this issue up there,
if it is still a problem in the latest kernel release.
So it looks like the mailing list is the onl
I upgraded to BIOS 1.5.0 yesterday and also upgraded the dock firmware
yesterday as well again (using windows-10-on-the-go usb stick I created
just for that purpose).
No improvements - I got a nice freeze on boot again (kernel 4.12.13).
Also, Windows 10 seems to be working on the same hardware ju
Also, what are these dots in syslog?
Sep 15 09:55:14 p5520 kernel: [ 21.539677] hid-generic 0003:046D:C31F.0005:
input,hiddev1,hidraw4: USB HID v1.10 Device [Logitech USB Keyboard] on
usb-:3e:00.0-1.7/input1
Sep 15 09:55:14 p5520 mtp-probe: checking bus 3, device 4:
"/sys/devices/pci:
I can confirm 1.5.0:
Sep 15 12:00:22 p5520 kernel: [0.00] DMI: Dell Inc. Precision
5520/06X96V, BIOS 1.5.0 08/30/2017
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Title:
System oft
I was running v4.14-rc1 for the whole last week.
It is... different.
Good stuff:
- Not a single freeze on fresh boot with dock attached.
- When it connects to eth0, it is stable. Not a single disconnect from
ethernet, but that may be as well the result of recent BIOS upgrade to 1.5.0
and dock f
I also checked 4.13.3 a moment ago and when booting with the dock
attached I got a freeze again soon after starting the desktop session.
So the original bug I reported here was definitely not fixed in 4.13.3,
nor by BIOS upgrade to 1.5.0. However, all network connections were
active at the login sc
Still using 4.13.3 today and I already had sudden ethernet connection
dropout which couldn't be reestabliished from NetworkManager without
replugging the dock. I conclude this problem must be related to kernel
then, because as said earlier, on 4.14.rc1 I had no ethernet stability
issues for the who
just FYI: 4.14.rc2 networking failure seems to be caused by dhcp client
crash. Where to submit bug report for this?
Sep 25 21:07:47 p5520 nm-applet[3178]: gtk_widget_destroy: assertion
'GTK_IS_WIDGET (widget)' failed
Sep 25 21:07:48 p5520 wpa_supplicant[1521]: wlp2s0: SME: Trying to authenticate
4.14.rc2 network problem fixed by running:
sudo ln -s /etc/apparmor.d/sbin.dhclient /etc/apparmor.d/disable/
sudo /etc/init.d/apparmor reload
Now I can use 4.14.rc2 and will let you know how stable it is.
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No, after disabling apparmor for dhclient, I'm successfully running v4.14-rc2.
However, it looks like exactly the same problems exist with this kernel as with
v4.14-rc2:
1. NetworkManager fails to connect automatically at startup, but
connects fine after manual intervention.
2. System fails to r
Public bug reported:
I have a system that was upgraded from 16.04 -> 16.10 -> 17.04 -> 17.10. So now
running on 17.10.
I upgraded to 17.10 because I hoped for better HiDPI scaling support.
My laptop is Dell Precision 5520 with 4k 3840x2160 15" screen, with
Intel graphics (it has nvidia too, but
apport information
** Tags added: apport-collected artful wayland-session
** Description changed:
I have a system that was upgraded from 16.04 -> 16.10 -> 17.04 -> 17.10. So
now running on 17.10.
I upgraded to 17.10 because I hoped for better HiDPI scaling support.
My laptop is Dell Pr
apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1735986/+attachment/5017752/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "JournalErrors.txt"
https://bugs.launchpad.net/bugs/1735986/+attachment/5017751/+files/JournalErrors.txt
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I'm on Compiz 0.9.10.2/Ubuntu 13.10 64-bit and this doesn't work for me. Java
popup windows render sometimes incorrectly.
Is there any other version of compiz I should try? Or hasn't this bug been
really fixed?
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I have the same problem with Mint 18 Sarah, based on Ubuntu 16.04 and Nvidia
361.42.
The logo is initially displayed, but when the animation for the "dots" starts,
the logo disappears and then only the dots are displayed.
BTW: I had to update grub settings with this:
GRUB_GFXMODE=1920x1080
GRUB
Unfortunately that turned out to be a fluke. I had two freezes on
4.11.12, and just a freeze a minute ago on fresh 4.13.rc3 installed from
http://kernel.ubuntu.com/~kernel-ppa/mainline/. No panics though.
I noticed all these freezes have a few things in common:
- they happen only when the dock is
Yesterday I updated to 4.11.9 and so far everything is stable. I managed
to reboot 6 times in a row with no issues. The kernel error is also gone
from syslog.
I'm still not totally sure, because the original issue is a bit random,
so that might have been just a good luck.
The jumpiness of mouse p
Public bug reported:
I have a Dell Precision 5520 laptop with a Thunderbolt USB 3.1 type C
port that I connect to a Dell TB15 docking station connected with an
Ethernet cable.
Network manager section for ethernet connections is all grayed out, and
it says "device unsupported".
USB subsystem seem
To make my workaround permanent, I tried adding the following lines to
/etc/network/interfaces:
auto eth0
iface eth0 inet dhcp
Weirdly, this hosed my system to the point it could no longer boot to login
screen. It got totaly stuck at configuring eth0 (no matter if the cable was
connected or n
** Attachment added: "Network manager applet screenshot"
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1689261/+attachment/4873431/+files/Zrzut%20ekranu%20z%202017-05-08%2013-05-58.png
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Ok, I found a workaround here:
https://askubuntu.com/questions/865945/after-upgrade-to-16-10-ethernet-stopped-working
sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
Magic! Worked for me!
But there seems to be a bug anyway.
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Any updates? This issue is driving me crazy.
A few days ago I had a talk at Cassandra Summit and this bug almost
ruined my presentation - it was not possible to use my laptop with an
external wide-screen projector through HDMI, somehow the screen
distortion problem happened always and I was not ab
http://askubuntu.com/questions/557149/14-10-dual-monitors-are-displayed-
as-distorted-single-screen-mode
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Title:
Desktop/windows painted incorrec
Public bug reported:
It looks similar to other issues but the message isn't exactly the same.
It just appeared after regular Ubuntu update. The system seems to be working
fine despite this problem.
ProblemType: Package
DistroRelease: Ubuntu 14.10
Package: nvidia-331 331.89-0ubuntu5
ProcVersion
An unofficial (and unacceptable) fix that finally worked for me was to
switch to Linux Mint 17.1.
It is based on Ubuntu 14.04 LTS, so I wonder what they did better, particularly
because they seem to be using exactly the same X org and graphics driver
versions.
X.org 1.15.1
Nvidia: 331.113
I confirm turning off image antialiasing fixes this. Wow - it is
awesome! Thanks, now it works like a charm.
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Title:
[Upstream] Impress very slow
Public bug reported:
Upgrading from Ubuntu 14.04 LTS to 14.10. Previous nvidia driver:
331.38.
ProblemType: Package
DistroRelease: Ubuntu 14.10
Package: nvidia-331-uvm 331.89-0ubuntu5
Uname: Linux 3.16.5-031605-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.7-0ubuntu7
Architectur
Public bug reported:
My setup: Dell M4600 laptop with Dell U3011 2560x1600 monitor attached
to DisplayPort.
I was using Nvidia 331.38 prioprietary driver for quite a long time with
Ubuntu 14.04 LTS and everything worked perfectly. Today I upgraded to
Ubuntu 14.10, which comes with Nvidia 331.89 a
** Attachment added: "After starting a session and opening a few windows"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1382462/+attachment/4238845/+files/DSC_0029.JPG
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** Attachment added: "Windows, which normally were placed in one of the
screens, now are placed partially on both"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1382462/+attachment/4238846/+files/DSC_0030.JPG
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** Attachment added: "The same windows immediately after undocking the laptop,
see how aspect ratio on the builtin screen changed"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1382462/+attachment/4238849/+files/DSC_0031.JPG
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** Description changed:
My setup: Dell M4600 laptop with Dell U3011 2560x1600 monitor attached
to DisplayPort.
I was using Nvidia 331.38 prioprietary driver for quite a long time with
Ubuntu 14.04 LTS and everything worked perfectly. Today I upgraded to
Ubuntu 14.10, which comes with
** Description changed:
My setup: Dell M4600 laptop with Dell U3011 2560x1600 monitor attached
to DisplayPort.
I was using Nvidia 331.38 prioprietary driver for quite a long time with
Ubuntu 14.04 LTS and everything worked perfectly. Today I upgraded to
Ubuntu 14.10, which comes with
** Description changed:
My setup: Dell M4600 laptop with Dell U3011 2560x1600 monitor attached
to DisplayPort.
I was using Nvidia 331.38 prioprietary driver for quite a long time with
Ubuntu 14.04 LTS and everything worked perfectly. Today I upgraded to
Ubuntu 14.10, which comes with
** Attachment added: "Display config as seen by Nvidia-settings (when working
correctly)"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1382462/+attachment/4238972/+files/Screenshot%20from%202014-10-17%2015%3A34%3A18.png
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By clicking and dragging at the desktop, I found another interesting
observation:
Mouse clicks are translated in the following way:
* Y coordinate is always correct.
* X coordinate is only correct if I click on the right edge of U3011 display -
then it is mapped to the right edge of the U3011 dis
Yesterday evening I updated the kernel to 3.16.0-23-generic (tpogether
with all the other updates) and the problem still exists.
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https://bugs.launchpad.net/bugs/1382462
Title:
Desktop/
Installing Nvidia 340.46 driver does not fix the problem (and adds one
more - incorrect rendering of menu highlight - but this driver is not
officially supported by ubuntu yet, so never mind).
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I got it both in 12.04 LTS, when using nvidia prioprieary drivers, as
well as with 12.10 which switched to bumblebee and is using mesa by
default. So this is probably not a graphics driver issue. In 12.10 that
lag seems to be longer, but that may be just by accident that mesa
graphic drivers are fa
This bug affects me with Ubuntu 13.04 64-bit, kernel generic 3.8.0-23. I
noticed it both when using nvidia as well as when using bumblebee with
optimus enabled (running the X session with intel card).
Is there any workaround?
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