can't get profile for display xrandr-eDP-1

[sify21]

~/.xsession-errors

** (xiccd:2574): CRITICAL **: 11:35:02.167: can't get profile for display xrandr-eDP-1: failed to load file: Error opening file /var/lib/lightdm/.local/share/icc/edid-3563963f89dc3c7fc429a8d9ea9acc8c.icc: Permission denied

** (xiccd:2574): CRITICAL **: 11:35:02.167: can't get profile for display xrandr-eDP-1: failed to load file: Error opening file /var/lib/lightdm/.local/share/icc/edid-3563963f89dc3c7fc429a8d9ea9acc8c.icc: Permission denied

** (xiccd:2574): CRITICAL **: 11:35:02.189: unable to add device profile: failed to obtain org.freedesktop.color-manager.modify-device auth

/usr/share/dbus-1/system-services/org.freedesktop.ColorManager.service

[D-BUS Service]
Name=org.freedesktop.ColorManager
Exec=/usr/libexec/colord
User=colord
SystemdService=colord.service

/usr/share/dbus-1/system.d/org.freedesktop.ColorManager.conf

<?xml version="1.0" encoding="UTF-8"?> <!-- -*- XML -*- -->

<!DOCTYPE busconfig PUBLIC
 "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
 "https://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
<busconfig>

  <!-- This configuration file specifies the required security policies
       for the ColorManager to work. -->

  <!-- Only user root or user colord can own the colord service -->
  <policy user="root">
    <allow own="org.freedesktop.ColorManager"/>
  </policy>
  <policy user="colord">
    <allow own="org.freedesktop.ColorManager"/>
  </policy>

 <!-- Allow anyone to call into the service - we'll reject callers using PolicyKit -->
  <policy context="default">
    <allow send_destination="org.freedesktop.ColorManager"
           send_interface="org.freedesktop.ColorManager"/>
    <allow send_destination="org.freedesktop.ColorManager"
           send_interface="org.freedesktop.ColorManager.Profile"/>
    <allow send_destination="org.freedesktop.ColorManager"
           send_interface="org.freedesktop.ColorManager.Device"/>
    <allow send_destination="org.freedesktop.ColorManager"
           send_interface="org.freedesktop.ColorManager.Sensor"/>
    <allow send_destination="org.freedesktop.ColorManager"
           send_interface="org.freedesktop.DBus.Properties"/>
    <allow send_destination="org.freedesktop.ColorManager"
           send_interface="org.freedesktop.DBus.Introspectable"/>
    <allow send_destination="org.freedesktop.ColorManager"
           send_interface="org.freedesktop.DBus.Peer"/>
  </policy>

</busconfig>

[agalakhov]

This is "permission denied". We didn't create this file. Where it does come from?

[sify21]

I have no idea. They are under lightdm directory. Does it correspond to this setting?

[agalakhov]

These files are created for the lightdm user or something like, they don't belong to the actual user logged in. Looks like LightDM managed to start colord on its own and now colord tries to access files that do not belong to the current user. It is definitely a colord issue, not xiccd one. And it could be just a configuration issue, that is, deleting the whole icc directory under lightm can potentially help. There EDID-based ICC files are auto-generated and can be newly generated at any time.

Fixing file permissions manually could help as well, but I don't believe it's about file permissions. Probably it is about the whole directory permissions which should not be altered since there are other safety-critical files in the lightdm directory as well.