Hello Carlos, I have this issue too. But I have a success to avoid by giving a Stumpwm source from git to Quicklisp manually. I hope it will help.
I upgraded Stumpwm to stumpwm-20170830-git with Quicklisp. --8<---------------cut here---------------start------------->8--- /home/natsu/quicklisp/dists/quicklisp/archives/ ├── alexandria-20170630-git.tgz ├── alexandria-20170830-git.tgz ├── bordeaux-threads-v0.8.5.tgz ├── cl-fad-0.7.4.tgz ├── cl-ppcre-2.0.11.tgz ├── cl-store-20160531-git.tgz ├── cl-vectors-20170630-git.tgz ├── clx-20170630-git.tgz ├── clx-20170830-git.tgz ├── clx-truetype-20160825-git.tgz ├── quicklisp-slime-helper-20150709-git.tgz ├── slime-v2.19.tgz ├── slime-v2.20.tgz ├── stumpwm-20170725-git.tgz ├── stumpwm-20170830-git.tgz ├── trivial-features-20161204-git.tgz └── zpb-ttf-1.0.3.tgz 0 directories, 17 files --8<---------------cut here---------------end--------------->8--- After upgrade cannot start with my previous /home/natsu/.xsession configuration file. --8<---------------cut here---------------start------------->8--- exec sbcl --eval "(ql:quickload :stumpwm)" --eval "(stumpwm:stumpwm)" --8<---------------cut here---------------end--------------->8--- I followed how to debug this with Xephyr from https://github.com/stumpwm/stumpwm/wiki/Debugging-reproducible-crashing-bugs-or-when-crash-StumpWM-is-likely-to-Crash and got these errors. --8<---------------cut here---------------start------------->8--- There is no class named STUMPWM::STUMPWM-IDLE-TIMER-CHANNEL. [Condition of type SB-PCL:CLASS-NOT-FOUND-ERROR] Restarts: 0: [NEW-IO-LOOP] Recreate I/O loop 1: [QUIT-STUMPWM] Quit Stumpwm 2: [ABORT] Exit debugger, returning to top level. Backtrace: 0: (SB-PCL::FIND-CLASS-FROM-CELL STUMPWM::STUMPWM-IDLE-TIMER-CHANNEL NIL T) 1: ((FLET SB-THREAD::WITH-RECURSIVE-LOCK-THUNK :IN SB-PCL::INSTALL-OPTIMIZED-CONSTRUCTOR)) 2: ((FLET #:WITHOUT-INTERRUPTS-BODY-387 :IN SB-THREAD::CALL-WITH-RECURSIVE-LOCK)) 3: (SB-THREAD::CALL-WITH-RECURSIVE-LOCK #<CLOSURE (FLET SB-THREAD::WITH-RECURSIVE-LOCK-THUNK :IN SB-PCL::INSTALL-OPTIMIZED-CONSTRUCTOR) {7FFFF2E5760B}> #<SB-THREAD:MUTEX "World Lock" owner: #<SB-THREAD:T.. 4: (SB-PCL::INSTALL-OPTIMIZED-CONSTRUCTOR #<SB-PCL::CTOR STUMPWM::STUMPWM-IDLE-TIMER-CHANNEL ()>) 5: ((LAMBDA (&REST SB-PCL::ARGS) :IN SB-PCL::INSTALL-INITIAL-CONSTRUCTOR)) 6: (STUMPWM::STUMPWM-INTERNAL-LOOP) 7: (STUMPWM::STUMPWM-INTERNAL ":1") 8: (STUMPWM ":1") 9: (SB-INT:SIMPLE-EVAL-IN-LEXENV (STUMPWM ":1") #<NULL-LEXENV>) 10: (EVAL (STUMPWM ":1")) 11: (SB-EXT:INTERACTIVE-EVAL (STUMPWM ":1") :EVAL NIL) 12: (SB-IMPL::REPL-FUN NIL) 13: ((LAMBDA NIL :IN SB-IMPL::TOPLEVEL-REPL)) 14: (SB-IMPL::%WITH-REBOUND-IO-SYNTAX #<CLOSURE (LAMBDA NIL :IN SB-IMPL::TOPLEVEL-REPL) {10043EB48B}>) 15: (SB-IMPL::TOPLEVEL-REPL NIL) 16: (SB-IMPL::TOPLEVEL-INIT) 17: ((FLET #:WITHOUT-INTERRUPTS-BODY-82 :IN SB-EXT:SAVE-LISP-AND-DIE)) 18: ((LABELS SB-IMPL::RESTART-LISP :IN SB-EXT:SAVE-LISP-AND-DIE)) --8<---------------cut here---------------end--------------->8--- * Solution I found a helpful article how to provide a project to Quicklisp on https://stackoverflow.com/questions/40571533/how-to-install-a-package-with-quicklisp First of all you need to clone Stumpwm to Quicklisp local-projects. --8<---------------cut here---------------start------------->8--- git clone https://github.com/stumpwm/stumpwm.git /home/natsu/quicklisp/local-projects/stumpwm --8<---------------cut here---------------end--------------->8--- Then create a file /home/natsu/bin/run-stumpwm with contents: --8<---------------cut here---------------start------------->8--- ;; -*-lisp-*- (require :asdf) (push #p"/home/natsu/quicklisp/local-projects/stumpwm/" asdf:*central-registry*) (ql:quickload "stumpwm") (stumpwm:stumpwm) --8<---------------cut here---------------end--------------->8--- And load this in /home/natsu/.xsession: --8<---------------cut here---------------start------------->8--- exec sbcl --load /home/natsu/bin/run-stumpwm --8<---------------cut here---------------end--------------->8--- _______________________________________________ Stumpwm-devel mailing list Stumpwm-devel@nongnu.org https://lists.nongnu.org/mailman/listinfo/stumpwm-devel