Package: kdm
Version: 4:4.8.4-6
Followup-For: Bug #614521
Dear Maintainer,
I´m experiencing this in wheezy. The bug is triggered for me by logging out
from KDE (restart of kdm).
I thought this might be a video driver problem, however, if it happens with the
proprietary Nvidia driver
this is not the case. I´m using the open source radeon driver with
firmware-linux-nonfree (KMS support).
So far this didn´t happen when changing to a tty and back to X, but this might
be because of KMS.
I wouldn´t say, this bug is important, because kdm is still functional. As a
workaround you can activate
X zapping and restart X by ctrl+alt+backspace. You would need the following
configuration files.
/etc/X11/xorg.conf.d/10-evdev:
Section "InputClass"
Identifier "evdev keyboard catchall"
MatchIsKeyboard "on"
MatchDevicePath "/dev/input/event*"
Driver "evdev"
Option "XkbOptions" "terminate:ctrl_alt_bksp"
EndSection
/etc/X11/xorg.conf.d/11-dontzap
Section "ServerFlags"
Option "DontZap" "false"
EndSection
Usually the password field should already have focus, but if you want to change
the user it might get annoying.
It does not seem to be a problem with the power supply. I do get this every
time on ac. I can´t check,
if this happens also after hibernation, because most of the times I hit another
bug, where the screen
gets completely corrupted (kdm is restartable, but the session is lost of
course).
I might file another bug report for that. It also does not seem to have
something to do with the kwin renderer.
I get this also, when kwin desktop effects are disabled (alt+shift+f12). As I
get this also, when no KDE
session is running, I doubt, that powerdevil or kwin have to do something with
it, but a black screen has
often something to do with the OpenGL renderer. I´m afraid not this time.
So these are my findings. Feel free to comment. Maybe a forced X restart on
logout could bypass this bug.
-- System Information:
Debian Release: 7.5
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages kdm depends on:
ii adduser 3.113+nmu3
ii consolekit 0.4.5-3.1
ii debconf [debconf-2.0] 1.5.49
ii kde-runtime 4:4.8.4-2
ii kde-wallpapers-default 4:4.8.4-1
ii kde-workspace-kgreet-plugins 4:4.8.4-6
ii libc6 2.13-38+deb7u1
ii libck-connector0 0.4.5-3.1
ii libdbus-1-3 1.6.8-1+deb7u1
ii libkdecore5 4:4.8.4-4
ii libkdeui5 4:4.8.4-4
ii libkio5 4:4.8.4-4
ii libknewstuff3-4 4:4.8.4-4
ii libkworkspace4abi1 4:4.8.4-6
ii libpam0g 1.1.3-7.1
ii libqimageblitz4 1:0.0.6-4
ii libqt4-svg 4:4.8.2+dfsg-11
ii libqt4-xml 4:4.8.2+dfsg-11
ii libqtcore4 4:4.8.2+dfsg-11
ii libqtgui4 4:4.8.2+dfsg-11
ii libstdc++6 4.7.2-5
ii libx11-6 2:1.5.0-1+deb7u1
ii libxau6 1:1.0.7-1
ii libxdmcp6 1:1.1.1-1
ii libxtst6 2:1.2.1-1+deb7u1
ii lsb-base 4.1+Debian8+deb7u1
Versions of packages kdm recommends:
ii kde-window-manager [x-window-manager] 4:4.8.4-6
ii kde-workspace 4:4.8.4-6
ii konsole [x-terminal-emulator] 4:4.8.4-2
ii logrotate 3.8.1-4
ii xserver-xorg [xserver] 1:7.7+3~deb7u1
ii xterm [x-terminal-emulator] 278-4
Versions of packages kdm suggests:
ii kde-wallpapers 4:4.8.4-1
ii kdepasswd 4:4.8.4-2
-- debconf information:
kdm/stop_running_server_with_children: false
shared/default-x-display-manager: kdm
kdm/daemon_name: /usr/bin/kdm
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