subject:"\[Desktop\-packages\] \[Bug 1626651\] Re\: brightness keys are handled slower in Yakkety than Xenial"

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-06 Thread Launchpad Bug Tracker

This bug was fixed in the package policykit-1 - 0.105-16git1

---
policykit-1 (0.105-16git1) yakkety; urgency=medium

  Upload current Debian packaging git.

  [ Michael Biebl ]
  * Use https:// for the upstream homepage.
  * Update Vcs-Browser to use cgit.

  [ Simon McVittie ]
  * Build-depend on intltool instead of relying on gtk-doc-tools'
dependency (Closes: #837846)

  [ Martin Pitt ]
  * Use PAM's common-session-noninteractive modules for pkexec instead of
common-session. The latter also runs pam_systemd (the only difference
normally) which is a no-op under the classic session-centric
D-BUS/graphical login model (as it won't start a new one if it is already
running within a logind session), but very expensive when using
dbus-user-session and being called from a service that runs outside the
PAM session. This causes long delays in e. g. gnome-settings-daemon's
backlight helpers. (LP: #1626651)

 -- Martin Pitt   Thu, 06 Oct 2016 22:35:24
+0200

** Changed in: policykit-1 (Ubuntu)
   Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Fix Released
Status in unity-settings-daemon package in Ubuntu:
  Invalid

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-06 Thread Martin Pitt

** Tags added: systemd-session

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to policykit-1 in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Fix Committed
Status in unity-settings-daemon package in Ubuntu:
  Invalid

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event  PID  Info  Duration Process
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2655 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2656 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2657 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2658 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2659 child   /lib/systemd/systemd-udevd
  16:35:36 exit   2659  00.005 /lib/systemd/systemd-udevd
  16:35:36 exit   2658  00.006 /lib/systemd/systemd-udevd
  16:35:36 exit   2657

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-06 Thread Martin Pitt

> Thus I am much more convinced now that switching to common-session-
noninteractive is not only correct (and also fixing this bug), but also
not actually that regression prone.

To prove this:

$ diff -u /etc/pam.d/common-session{-noninteractive,}
@@ -27,5 +27,6 @@
 session optional   pam_umask.so
 # and here are more per-package modules (the "Additional" block)
 sessionrequiredpam_unix.so 
+sessionoptionalpam_systemd.so 
 sessionoptionalpam_ecryptfs.so unwrap
 # end of pam-auth-update config

(the other two hunks are just comments). I. e. the only difference
between (non)interactive is pam_systemd, which was a no-op under upstart
/session-centric model due to the "already running in a session" check.

** Changed in: unity-settings-daemon (Ubuntu)
   Status: Triaged => Invalid

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Fix Committed
Status in unity-settings-daemon package in Ubuntu:
  Invalid

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-06 Thread Martin Pitt

https://anonscm.debian.org/cgit/pkg-
utopia/policykit.git/commit/?id=4299fc41

** Changed in: policykit-1 (Ubuntu)
   Status: Triaged => Fix Committed

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Fix Committed
Status in unity-settings-daemon package in Ubuntu:
  Invalid

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event  PID  Info  Duration Process
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2655 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2656 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2657 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2658 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2659 child   /lib/systemd/systemd-udevd
  16:35:36 exit

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-06 Thread Martin Pitt

The reason why it is fast under upstart is that with upstart the entire
session is running in the logind scope/session, in particular unity-
settings-daemon; and then pkexec causes

Okt 06 22:10:46 donald pkexec[9943]: pam_systemd(polkit-1:session):
Cannot create session: Already running in a session

This is why the entire pam_systemd, systemd --user etc. for root are
entirely skipped.

Under the "user session" paradigm that we get with dbus-user-session,
most session processes (including gnome-terminal-server and unity-
settings-daemon) run *outside* of the logind session/scope and thus not
technically within a PAM session. That's why pam_systemd actually does
start a new full session which makes this slow.

In conclusion: Under an upstart session we never actually had a "full"
new interactive PAM session for the target user anyway, as this was
*already* a PAM session. Thus changing pkexec to common-session-
noninteractive is actually doing (mostly) the same as we previously did
in 16.04 under an upstart session. Thus I am much more convinced now
that switching to common-session-noninteractive is not only correct (and
also fixing this bug), but also not actually that regression prone.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Invalid

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-06 Thread Martin Pitt

The flurry of uevents like

KERNEL[2471.462139] add  
/kernel/slab/:atA-192/cgroup/dentry(4399:user@0.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:atA-192/cgroup/dentry(4399:user@0.service)
SEQNUM=4916
SUBSYSTEM=cgroup

are new with kernel 4.8. This can easily be reproduced/observed with

  udevadm monitor -e --udev
  pkexec /usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness

This causes lots of uevents in kernel 4.8, but zero with 4.4. This
explains the dozens of udev workers that get forked and slow down
processing -- under 4.4 it's much faster, a latency of ~ 0.1s or 0.2s;
not quite instantaneous, but much better than under 4.8.

This might be the same root cause as bug 1627108 and bug 1626436,
particularly the latter -- if the creation/change of every cgroup causes
3 uevents, then during boot (when lots of services get started and lots
of cgroups get created) tons of these uevents fire.

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-06 Thread Jason Gerard DeRose

I'm back to testing u-s-d started under systemd, and I found some
serious wackiness observing `sudo journalctl -f` when I use the
brigtness up/down hotkeys.

The attached "wacky-journalctl.txt" file has the output of `sudo
journalctl -f` during which I used the brightness hotkeys *twice*, and
you'll see a slew interesting things happening *each* time I press a hot
key.

For example, this is a small excerpt of what I'm seeing for every hotkey
press:

Oct 06 10:44:50 jason-Gazelle-Professional systemd[1]: Created slice User Slice 
of root.
Oct 06 10:44:50 jason-Gazelle-Professional systemd[1]: Starting User Manager 
for UID 0...
Oct 06 10:44:50 jason-Gazelle-Professional systemd[1]: Started Session 1 of 
user root.
Oct 06 10:44:50 jason-Gazelle-Professional systemd[4805]: 
pam_unix(systemd-user:session): session opened for user root by (uid=0)
Oct 06 10:44:50 jason-Gazelle-Professional systemd[4805]: Reached target Paths.
Oct 06 10:44:50 jason-Gazelle-Professional systemd[4805]: Starting D-Bus User 
Message Bus Socket.
Oct 06 10:44:50 jason-Gazelle-Professional systemd[4805]: Reached target Timers.
Oct 06 10:44:50 jason-Gazelle-Professional systemd[4805]: Listening on D-Bus 
User Message Bus Socket.
Oct 06 10:44:50 jason-Gazelle-Professional systemd[4805]: Reached target 
Sockets.
Oct 06 10:44:50 jason-Gazelle-Professional systemd[4805]: Reached target Basic 
System.
Oct 06 10:44:50 jason-Gazelle-Professional systemd[4805]: Starting Run Click 
user-level hooks...
Oct 06 10:44:50 jason-Gazelle-Professional systemd[4805]: Started D-Bus User 
Message Bus.
Oct 06 10:44:50 jason-Gazelle-Professional dbus-daemon[4839]: Activating via 
systemd: service name='org.gtk.vfs.Daemon' unit='gvfs-daemon.service'

** Attachment added: "wacky-journalctl.txt"
   
https://bugs.launchpad.net/ubuntu/+source/unity-settings-daemon/+bug/1626651/+attachment/4756139/+files/wacky-journalctl.txt

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-06 Thread Jason Gerard DeRose

`sudo forkstat -D 4` when u-s-d is started under systemd and I press the
brightness up hotkey.

** Attachment added: "with-systemd.txt"
   
https://bugs.launchpad.net/ubuntu/+source/unity-settings-daemon/+bug/1626651/+attachment/4756099/+files/with-systemd.txt

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event  PID  Info  Duration Process
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2655 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2656 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2657 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2658 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-06 Thread Jason Gerard DeRose

Okay, an interesting hint is that this problem seems to be fixed if
u-s-d is started under the Upstart user session instead of the systemd
user session.

If anyone wants to try this, just comment out these three lines in
/etc/X11/Xsession.d/00upstart:

if [ "${1#*.target}" != "$1" ]; then
export 
XDG_CONFIG_DIRS="/usr/share/upstart/systemd-session:$XDG_CONFIG_DIRS"
fi

I'm attaching the result of me starting u-s-d under Upstart, running
`sudo forkstat -D 4`, and then pressing the brightness up key.

(I'll attach the same from under systemd next comment.)

>From talking to Martin Pitt on IRC, sounds like switching u-s-d back to
being started by Upstart might not be viable, but hopefully this at
least helps narrow the search.

** Attachment added: "with-upstart.txt"
   
https://bugs.launchpad.net/ubuntu/+source/unity-settings-daemon/+bug/1626651/+attachment/4756098/+files/with-upstart.txt

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-04 Thread Eduards Bezverhijs

In contrast this is what is happening with Xenial, which works perfectly.
evtest:
Event: time 1475641421.193234, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), 
value 1
Event: time 1475641421.193234, -- SYN_REPORT 
Event: time 1475641421.193306, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), 
value 0
Event: time 1475641421.193306, -- SYN_REPORT 

udev monitoring in the attachment.

** Attachment added: "udev.xenial.txt"
   
https://bugs.launchpad.net/ubuntu/+source/unity-settings-daemon/+bug/1626651/+attachment/4754687/+files/udev.xenial.txt

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https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event  PID  Info  Duration Process
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2655 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2656 child

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-04 Thread Eduards Bezverhijs

I have similar problem on Dell XPS 15 (l521x). It is not quick and it seems 
that for every key-press it's trying to change brightness twice.
I'll attach evtest and udev monitor outputs.

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event  PID  Info  Duration Process
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2655 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2656 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2657 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2658 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2659 child

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-04 Thread Eduards Bezverhijs

** Attachment added: "udev.txt"
   
https://bugs.launchpad.net/ubuntu/+source/unity-settings-daemon/+bug/1626651/+attachment/4754480/+files/udev.txt

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event  PID  Info  Duration Process
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2655 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2656 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2657 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2658 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2659 child   /lib/systemd/systemd-udevd
  16:35:36 exit   2659  0

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-04 Thread Eduards Bezverhijs

** Attachment added: "evdtest.txt"
   
https://bugs.launchpad.net/ubuntu/+source/unity-settings-daemon/+bug/1626651/+attachment/4754481/+files/evdtest.txt

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event  PID  Info  Duration Process
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2655 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2656 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2657 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2658 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2659 child   /lib/systemd/systemd-udevd
  16:35:36 exit   2659

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-10-01 Thread Zero

Confirm on Yakkety 16.10 on notebook HP Pavilion g7 smbios-2.7 dmi-2.7 smp 
vsyscall32
Very very slow and inert reaction on pressing brightness keys 

$ uname -r
4.8.0-17-generic

$ lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller 
(rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor 
PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor 
Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family 
USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series 
Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family 
USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family 
High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI 
Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI 
Express Root Port 2 (rev c4)
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI 
Express Root Port 3 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family 
USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 
04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA 
Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus 
Controller (rev 04)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] 
Thames [Radeon HD 7500M/7600M Series] (rev ff)
07:00.0 Network controller: Broadcom Limited BCM4313 802.11bgn Wireless Network 
Adapter (rev 01)
08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI 
Express Fast/Gigabit Ethernet controller (rev 05)
09:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI 
Express Card Reader (rev 01)

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-09-22 Thread Martin Pitt

On the u-s-d side there is some potential optimization: Ideally the
brightness would always be set through xrandr XBACKLIGHT, which works
unprivileged, and only fall back to the helper if that is not available
and the brightness needs to be set via sysfs properties. However, even
then there is no reason why --get-brightness would need particular
privileges: these sysfs attributes are world-readable, and only --set-
brightness (writing the attribute) needs root. This would already cut
away half of the overhead.

** Changed in: policykit-1 (Ubuntu)
Milestone: None => ubuntu-16.10

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event  PID  Info  Duration Process
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2655 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2656 child

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

2016-09-22 Thread Martin Pitt

Changing tasks as this is somewhere between unity-settings-daemon and
polkit.

** Package changed: linux (Ubuntu) => unity-settings-daemon (Ubuntu)

** Changed in: unity-settings-daemon (Ubuntu)
   Status: Incomplete => Triaged

** Package changed: systemd (Ubuntu) => policykit-1 (Ubuntu)

** Changed in: policykit-1 (Ubuntu)
   Status: Incomplete => Triaged

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to unity-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/1626651

Title:
  brightness keys are handled slower in Yakkety than Xenial

Status in policykit-1 package in Ubuntu:
  Triaged
Status in unity-settings-daemon package in Ubuntu:
  Triaged

Bug description:
  I've noticed on Lenovo X220 and X230 laptops that pressing brightness
  keys on Yakkety seems less responsive and slower than Xenial.  I ran
  forkstat on Xenial and just observed udev being forked off:

  Xenial:
  $ sudo forkstat
  Time Event  PID  Info  Duration Process
  17:37:35 fork273 parent  /lib/systemd/systemd-udevd
  17:37:35 fork   1977 child   /lib/systemd/systemd-udevd
  17:37:35 exit   1977  00.008 /lib/systemd/systemd-udevd

  Whereas on Yakkety, there is far more activity:
  Time Event  PID  Info  Duration Process
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2645 child   update-notifier
  16:35:34 exec   2645 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 exit   26452560.221 /usr/bin/python3 
/usr/share/apport/apport-checkreports
  16:35:34 fork   2626 parent  update-notifier
  16:35:34 fork   2646 child   update-notifier
  16:35:34 exec   2646 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:34 exit   26462560.188 /usr/bin/python3 
/usr/share/apport/apport-checkreports --system
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2647 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2647 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2647  00.008 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2648 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2648 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2648  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2649 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2649 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 exit   2649  00.007 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2650 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2650 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 exit   2650  00.006 
/usr/lib/unity-settings-daemon/usd-backlight-helper --get-max-brightness
  16:35:36 fork   1576 parent  
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 fork   2651 child   
/usr/lib/unity-settings-daemon/unity-settings-daemon
  16:35:36 exec   2651 pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2652 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2651 parent  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 clone  2653 thread  pkexec 
/usr/lib/unity-settings-daemon/usd-backlight-helper --set-brightness 2250
  16:35:36 fork  1 parent  /sbin/init splash
  16:35:36 fork   2654 child   /sbin/init splash
  Time Event  PID  Info  Duration Process
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2655 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2656 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36 fork   2657 child   /lib/systemd/systemd-udevd
  16:35:36 fork233 parent  /lib/systemd/systemd-udevd
  16:35:36

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

[Desktop-packages] [Bug 1626651] Re: brightness keys are handled slower in Yakkety than Xenial

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