(In reply to Oleg Vlasov from comment #5) > problems is on every suspend resume. > and started about 2-3 weeks ago. > i don't remember if there was any major kernel updates Could you please help to add the following kernel parameter to grub2 config for exposing more debug log? debug no_console_suspend=1 loglevel=9 hibernate=nocompress log_buf_len=10M Please attach complete dmesg log before/after S4. Thanks!