I have Debian Jessie with LXDE. It has pcmanfm GUI file manager out of box. What permission mode and ownership should folders have at least to allow pcmanfm browse them?I am confused that it appears Permission Deniedmessage in the situation like this:gameboy@debian:/home/dropbox$ ps aux|grep pcmanfmgameboy   1109  0.0  0.5 652420 23112 ?        Sl   09:53   0:05 pcmanfm --desktop --profile LXDEgameboy  25915  0.0  0.0  13952  2152 pts/0    S+   20:32   0:00 grep pcmanfmgameboy@debian:/home/dropbox$ members dropboxdropbox www-data phpstorm gameboygameboy@debian:/home/dropbox$ sudo namei -mo /home/dropbox/Dropbox/f: /home/dropbox/Dropbox/ drwxr-xr-x root    root    / drwxr-xr-x root    root    home drwxrwx--- dropbox dropbox dropbox drwxrwxrwx dropbox dropbox Dropboxgameboy@debian:/home/dropbox$ cd /home/dropbox/Dropbox/gameboy@debian:/home/dropbox/Dropbox$One can see that gameboy user is able to enter /home/dropbox/Dropbox.  gameboy user is the user of LXDE graphical environment. But I cannot enter /home/dropbox/ via pcmanfm file manager. It is possible only when I change permission mode of /home/dropbox to 775. What to do to enter the folder with 770 mode via pcmanfm?
Permissions for a folder to be opened by pcmanfm file manager
linux;permissions;file manager;pcmanfm;ownership