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X server: Log to the journal instead of /var/log/X.0.log

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This ensures that "journalctl -u display-manager" does what you would
expect in 2016. However, the main reason is to ensure that our VM
tests show the output of the X server.

A slight problem is that with KDE user switching, messages from the
various X servers end up in the same place. However, that's an
improvement over the previous situation, where the second X server
would overwrite the /var/log/X.0.log of the first. (This was caused by
the fact that we were passing a hard-coded value for -logfile.)
This commit is contained in:
Eelco Dolstra 2016-05-24 21:07:26 +02:00
parent 012313f253
commit d84741a4bf
2 changed files with 4 additions and 2 deletions
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2
nixos/modules/services/x11/display-managers/kdm.nix
View file

@ -139,7 +139,7 @@ in
mkdir -m 0755 -p /var/lib/kdm
chown kdm /var/lib/kdm
${(optionalString (config.system.boot.loader.id == "grub" && config.system.build.grub != null) "PATH=${config.system.build.grub}/sbin:$PATH ") +
"KDEDIRS=/run/current-system/sw exec ${kdebase_workspace}/bin/kdm -config ${kdmrc} -nodaemon"}
"KDEDIRS=/run/current-system/sw exec ${kdebase_workspace}/bin/kdm -config ${kdmrc} -nodaemon -logfile /dev/stderr"}
'';
logsXsession = true;
};

4
nixos/modules/services/x11/xserver.nix
View file

@ -520,6 +520,7 @@ in
serviceConfig = {
Restart = "always";
RestartSec = "200ms";
SyslogIdentifier = "display-manager";
};
};
@ -527,10 +528,11 @@ in
[ "-terminate"
"-config ${configFile}"
"-xkbdir" "${cfg.xkbDir}"
# Log at the default verbosity level to stderr rather than /var/log/X.*.log.
"-verbose" "3" "-logfile" "/dev/null"
] ++ optional (cfg.display != null) ":${toString cfg.display}"
++ optional (cfg.tty != null) "vt${toString cfg.tty}"
++ optional (cfg.dpi != null) "-dpi ${toString cfg.dpi}"
++ optionals (cfg.display != null) [ "-logfile" "/var/log/X.${toString cfg.display}.log" ]
++ optional (!cfg.enableTCP) "-nolisten tcp";
services.xserver.modules =