[Pkg-xfce-devel] Bug#797588: brightness up/down keys super laggy with kernel 4.0.0

[Joey Hess]

Package: xfce4-power-manager
Version: 1.4.4-4
Severity: normal

Pressing my laptop's keys to increase/decrease brightness is nearly
compltely broken after upgrade from kernel 3.16.0 to 4.0.0. Hardware is
a Lenovo Yoga 11gs.

The display brightness slider in the panel works perfectly fine;
brightness adjusts smoothly and quickly. However, if I press eg, the key
to redice brightness, there's a lag of 1 to 3 seconds before my
keypresses take effect. This makes it very hard to get to the desired
brightness.

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.0.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages xfce4-power-manager depends on:
ii  libc6                     2.19-19
ii  libcairo2                 1.14.2-2
ii  libdbus-1-3               1.8.20-1
ii  libdbus-glib-1-2          0.102-1
ii  libgdk-pixbuf2.0-0        2.31.5-1
ii  libglib2.0-0              2.44.1-1.1
ii  libgtk2.0-0               2.24.28-1
ii  libnotify4                0.7.6-2
ii  libpango-1.0-0            1.36.8-3
ii  libpangocairo-1.0-0       1.36.8-3
ii  libupower-glib3           0.99.3-1+b2
ii  libx11-6                  2:1.6.3-1
ii  libxext6                  2:1.3.3-1
ii  libxfce4ui-1-0            4.12.1-2
ii  libxfce4util7             4.12.1-2
ii  libxfconf-0-2             4.12.0-2+b1
ii  libxrandr2                2:1.5.0-1
ii  upower                    0.99.3-1+b2
ii  xfce4-power-manager-data  1.4.4-4

Versions of packages xfce4-power-manager recommends:
ii  libpam-systemd               225-1
ii  xfce4-power-manager-plugins  1.4.4-4

xfce4-power-manager suggests no packages.

-- no debconf information

-- 
see shy jo
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