bug#37342: Xfce4 hides panel after update

bug#37342: Xfce4 hides panel after update

[znavko]

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Today, I've updated guix with this consequence:
# guix pull && guix package -u
# guix system reconfigure /etc/config.scm

After reboot I successfully login to Slim and Xfce4 shows Desktop and Panel. But then after few moments Xfce4 hides panel, and I cannot open Applications with ctrl + esc. I only can use Main Menu by clicking right mouse.
So I go to Settings and see there is Panel. I make it much pixels high and 3 rows, but it does not show never.
So I add new panel and configure it.
Also I run Icecat but I cannot type there! Any key pressing gives nothing!
After reboot panels hide themselves again. So I have 2 panel in Xfce4 settings and they are not displaying.
But I can use keyboard.

I've open new tty and made update by root again and by my usual user.
After reboot Panels hide themselves again!

I made roll-back because of this ugly bug. And it;s ok.

Please, is my old config rests good? Where this bug come from?

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;-*- mode: Scheme; -*-
;;this is znavko's cute config

(use-modules (gnu) (gnu system nss)
	     (gnu system locale) ;;for locale-definition
	     (gnu services desktop)
	     (srfi srfi-1)	       ;;for remove function
	     (gnu services networking) ;;for remove ntp
	     (gnu services avahi)      ;;for remove avahi
	     (gnu services xorg)
	     (gnu packages admin) ;;for wpa_supplicant
	     )

(use-service-modules desktop)
(use-package-modules certs gnome)

(operating-system (host-name "antelope") (timezone "Europe/Moscow") (locale "en_US.utf8")
		  (bootloader (bootloader-configuration (bootloader grub-bootloader) (target "/dev/sda")))
		  (file-systems (cons (file-system (device "/dev/sda1") (mount-point "/") (type "ext4")) %base-file-systems))
		  (swap-devices '("/dev/sda2"))

		  (users (cons* (user-account (name "bob") (group "users")
					      (supplementary-groups '("wheel" "netdev" "audio" "video"))
					      (home-directory "/home/bob"))
				(user-account (name "mom") (group "users")
					      (supplementary-groups '("wheel" "netdev" "audio" "video"))
					      (home-directory "/home/mom"))
				%base-user-accounts))

		  ;; This is where we specify system-wide packages.
		  (packages (cons* nss-certs ;for HTTPS access
				   gvfs	     ;for user mounts
				   wpa-supplicant
				   %base-packages))

		  (services (cons* 
			     (service xfce-desktop-service-type)
			     (service dhcp-client-service-type)
			     (service slim-service-type
				      (slim-configuration
					;;(auto-login? #t)
					;;(default-user "g")
					(xorg-configuration
					 (xorg-configuration
					  (extra-config  
					   '("Section \"InputClass\"
Identifier \"touchpad\"
Driver \"libinput\"
MatchIsTouchpad \"on\"
Option \"Tapping\" \"on\"
EndSection")
					   ))))
				      )

			     (modify-services      
			      (remove (lambda (service)
					(member (service-kind service)
						(list ntp-service-type avahi-service-type 
						      bluetooth-service network-manager-service-type
						      gdm-service-type)))
				      %desktop-services) ;end of remove lambda services

			      (wpa-supplicant-service-type config =>
							   (wpa-supplicant-configuration
							    (interface "wlp2s0")
							    (config-file "/etc/wpa_supplicant/wpa_supplicant.conf")))

			      (elogind-service-type
			       c => (elogind-configuration (handle-lid-switch 'ignore)))
			      )	;;end of modify-services
			     ))	;;end of services

		  ;; Allow resolution of '.local' host names with mDNS.
		  (name-service-switch %mdns-host-lookup-nss)

		  ;;blacklist ugly sound speaker, blacklist ideapad_laptop for prevent soft blocking wlan
		  (kernel-arguments '("modprobe.blacklist=pcspkr,snd_pcsp,bluetooth,ideapad_laptop"))

		  ) ;;end of operating-system

bug#37342: Close

[Andreas Enge]

Closing this bug, since by
   https://lists.gnu.org/archive/html/help-guix/2019-12/msg00140.html
the problem is solved.

Andreas