[Pkg-xfce-devel] Bug#821871: lightdm: Missing cursor and flicking after unlock with XFCE, clears after VT switch

[Nathaniel Roach]

Package: lightdm
Version: 1.18.1-1
Severity: important

Dear Maintainer,

When using XFCE4 and lightdm, after unlocking the mouse cursor is not visible (but does exist) and there is often flickering. The cursor may reappear while using gnome-terminal, as it hides/un-hides the cursor, but the easiest fix is switching to TTY1 and back (also clears the flickering).

I'm filing it against lightdm, but it may be an XOrg bug. As it does not happen with GNOME/GDM3, I'd presume it may lie in how lightdm handles the VT switch.

I'm running debian testing x64 on a Thinkpad X200 with a custom kernel, but it's also effecting other users with newer hardware (T460, for example) and is not specific to my kernel build/config.

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

Kernel: Linux 4.5.0-nr44-x200-r1458012906+ (SMP w/2 CPU cores)
Locale: LANG=en_AU.utf8, LC_CTYPE=en_AU.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages lightdm depends on:
ii  adduser                                3.114
ii  dbus                                   1.10.8-1
ii  debconf [debconf-2.0]                  1.5.59
ii  libaudit1                              1:2.4.5-1+b1
ii  libc6                                  2.22-6
ii  libgcrypt20                            1.6.5-2
ii  libglib2.0-0                           2.48.0-1
ii  libpam-systemd                         229-4
ii  libpam0g                               1.1.8-3.2
ii  libxcb1                                1.11.1-1
ii  libxdmcp6                              1:1.1.2-1.1
ii  lightdm-gtk-greeter [lightdm-greeter]  2.0.1-2

Versions of packages lightdm recommends:
ii  xserver-xorg  1:7.7+14

Versions of packages lightdm suggests:
ii  accountsservice  0.6.40-3
ii  upower           0.99.4-2

-- Configuration Files:
/etc/lightdm/lightdm.conf changed:
[LightDM]
[Seat:*]
xserver-allow-tcp=true
greeter-hide-users=false
autologin-user=nroach44
autologin-user-timeout=0
[XDMCPServer]
[VNCServer]


-- debconf information:
  lightdm/daemon_name: /usr/sbin/lightdm
* shared/default-x-display-manager: lightdm