Package: lightdm Version: 1.10.3-3 Severity: normal Dear Maintainer,
After I had switched from X to VT several times (maybe there are other cuases too, but I don't know them) X stopped updating windows. The mouse cursor was moving and changing its shape as I moved it over different windows. I could still switch betwen VT and X. On VT I found that, apparently, lightdm wan't handling data from X properly because there was over 200kB worth of data waiting in X's send queue and 8k in receive queue in lightdm. --8<---------------cut here---------------start------------->8--- Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port u_str ESTAB 0 213504 @/tmp/.X11-unix/X0 9689907 * 9691709 users:(("Xorg",pid=11405,fd=18)) u_str ESTAB 8896 0 * 9691709 * 9689907 users:(("lightdm",pid=10124,fd=11)) --8<---------------cut here---------------end--------------->8--- The numbers had been growing each time I switched between X and VT. I had reported[1] this problem to the lighdm mailing list but there was no response. [1] https://lists.freedesktop.org/archives/lightdm/2017-March/001056.html -- System Information: Debian Release: 8.8 APT prefers stable-updates APT policy: (950, 'stable-updates'), (950, 'stable'), (500, 'proposed-updates') Architecture: amd64 (x86_64) Foreign Architectures: armel, arm64 Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores) Locale: LANG=pl_PL.UTF-8, LC_CTYPE=pl_PL.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages lightdm depends on: ii adduser 3.113+nmu3 ii consolekit 0.4.6-5 ii dbus 1.8.22-0+deb8u1 ii debconf [debconf-2.0] 1.5.56 ii libc6 2.19-18+deb8u9 ii libgcrypt20 1.6.3-2+deb8u2 ii libglib2.0-0 2.42.1-1+b1 ii libpam-systemd 215-17+deb8u7 ii libpam0g 1.1.8-3.1+deb8u2 ii libxcb1 1.10-3+b1 ii libxdmcp6 1:1.1.1-1+b1 ii lightdm-gtk-greeter [lightdm-greeter] 1.8.5-2 Versions of packages lightdm recommends: ii xserver-xorg 1:7.7+7 Versions of packages lightdm suggests: ii accountsservice 0.6.37-3+b1 ii upower 0.99.1-3.2 -- Configuration Files: /etc/apparmor.d/lightdm-guest-session 9d3af5806375ac868fcaf5aaf3d56a00 [Errno 2] Nie ma takiego pliku ani katalogu: u'/etc/apparmor.d/lightdm-guest-session 9d3af5806375ac868fcaf5aaf3d56a00' /etc/init/lightdm.conf b5de8ae57f7a4f102b6a6943139957a5 [Errno 2] Nie ma takiego pliku ani katalogu: u'/etc/init/lightdm.conf b5de8ae57f7a4f102b6a6943139957a5' -- debconf information: lightdm/daemon_name: /usr/sbin/lightdm * shared/default-x-display-manager: lightdm -- Łukasz Stelmach Samsung R&D Institute Poland Samsung Electronics
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