Hi, I have installed Lubuntu 20.04 on my laptop and xmonad doesn't redraw it background. That is if I am on workspace 1 , and switch to a workspace with no window, the background of the new workspace is made by the windows of workspace 1. I do have some warnings in xmonad.errors but don't feel they are the explanation of the problem I encounter. Would somebody have a workaround ? Not being able to use Xmonad would be hard to bear. Best regards, Alain -------------------------- xmonad.hs:25:42: warning: [-Wdeprecations] In the use of ‘defaultConfig’ (imported from XMonad, but defined in XMonad.Config): Deprecated: "Use def (from Data.Default, and re-exported by XMonad and XMonad.Config) instead." | 25 | layoutHook=avoidStruts $ layoutHook defaultConfig | ^^^^^^^^^^^^^ xmonad.hs:26:30: warning: [-Wdeprecations] In the use of ‘defaultConfig’ (imported from XMonad, but defined in XMonad.Config): Deprecated: "Use def (from Data.Default, and re-exported by XMonad and XMonad.Config) instead." | 26 | , manageHook=manageHook defaultConfig <+> manageDocks | ^^^^^^^^^^^^^ xmonad.hs:43:46: warning: [-Wdeprecations] In the use of ‘defaultXPConfig’ (imported from XMonad.Prompt): Deprecated: "Use def (from Data.Default, and re-exported from XMonad.Prompt) instead." | 43 | [ ((modm, xK_F12), xmonadPrompt defaultXPConfig) | ^^^^^^^^^^^^^^^ xmonad.hs:44:46: warning: [-Wdeprecations] In the use of ‘defaultXPConfig’ (imported from XMonad.Prompt): Deprecated: "Use def (from Data.Default, and re-exported from XMonad.Prompt) instead." | 44 | , ((modm, xK_F3 ), shellPrompt defaultXPConfig) | ^^^^^^^^^^^^^^^ My config file is : import XMonad import XMonad.Hooks.SetWMName import XMonad.Hooks.ManageDocks import qualified Data.Map as M import Graphics.X11.Xlib import XMonad.Config.Azerty import XMonad.Prompt import XMonad.Prompt.Shell import XMonad.Prompt.XMonad import XMonad.Actions.SpawnOn myStartUpHook :: X () myStartUpHook = do spawnOn "panel" "xfce4-panel" spawnOn "clavier" "/home/alain/bin/clavier_conf" spawnOn "1" "/usr/bin/firefox" spawnOn "1" "/usr/bin/thunderbird" spawnOn "workspace7" "/usr/bin/transmission-gtk" setWMName "LG3D" main=do xmonad $ docks def { layoutHook=avoidStruts $ layoutHook defaultConfig , manageHook=manageHook defaultConfig <+> manageDocks , modMask = mod4Mask , keys = myKeys <+> keys azertyConfig , startupHook = myStartUpHook } myKeys conf@(XConfig {XMonad.modMask = modm}) = M.fromList [ ((modm, xK_F12), xmonadPrompt defaultXPConfig) , ((modm, xK_F3 ), shellPrompt defaultXPConfig) ]