HI, uname -a gives Linux mx 4.19.0-1-amd64 #1 SMP Debian 4.19.5-2~mx17+1 (2018-12-12) x86_64 GNU/Linux Sometimes (maybe often) when I leave the system for a times without touching it, when I come back, the system is frozen , juste the pointer of mouse can move, but nothing else, keyboard doesn't respond, even ctrl+alt+F1 , or F2, ... So the only thing todo is stop button. Here is some lines from messages (last line before the shutdown), hope that someone can help me by reading this log before the stopping system ( at 20:29).
Jan 27 20:29:52 mx kernel: [11479.565256] Bluetooth: hci0: BCM: Patch brcm/BCM20702A1-0489-e032.hcd not found Jan 27 20:29:52 mx kernel: [11479.565248] bluetooth hci0: Direct firmware load for brcm/BCM20702A1-0 489-e032.hcd failed with error -2 Jan 27 20:29:52 mx kernel: [11478.719457] ata1.00: configured for UDMA/133 Jan 27 20:29:52 mx kernel: [11478.513494] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Jan 27 20:29:52 mx kernel: [11477.409506] PM: suspend exit Jan 27 20:29:52 mx kernel: [11477.374637] Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000 Jan 27 20:29:52 mx kernel: [11477.373634] Bluetooth: hci0: BCM20702A Jan 27 20:29:52 mx kernel: [11477.356632] Bluetooth: hci0: BCM: features 0x07 Jan 27 20:29:52 mx kernel: [11477.355640] Bluetooth: hci0: BCM: chip id 63 Jan 27 20:29:52 mx kernel: [11477.245215] Restarting tasks ... done. Jan 27 20:29:52 mx kernel: [11477.245213] OOM killer enabled. Jan 27 20:29:52 mx kernel: [11477.164547] usb 1-1.4: reset high-speed USB device number 5 using ehci -pci Jan 27 20:29:52 mx kernel: [11477.106796] ata3.00: configured for UDMA/100 Jan 27 20:29:52 mx kernel: [11477.105193] ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jan 27 20:29:52 mx kernel: [11477.022519] usb 1-1.3: reset full-speed USB device number 4 using ehci -pci Jan 27 20:29:52 mx kernel: [11477.018509] usb 4-1.6: reset high-speed USB device number 3 using ehci -pci Jan 27 20:29:52 mx kernel: [11476.837625] ACPI: button: The lid device is not compliant to SW_LID. Jan 27 20:29:52 mx kernel: [11476.619289] sd 0:0:0:0: [sda] Starting disk Jan 27 20:29:52 mx kernel: [11476.608519] ACPI: EC: event unblocked Jan 27 20:29:52 mx kernel: [11476.594662] ACPI: EC: interrupt unblocked Jan 27 20:29:52 mx kernel: [11476.091515] ACPI: Waking up from system sleep state S3 Jan 27 20:29:52 mx kernel: [11476.088916] CPU1 is up Jan 27 20:29:52 mx kernel: [11476.088582] cache: parent cpu1 should not be sleeping Jan 27 20:29:52 mx kernel: [11476.083485] smpboot: Booting Node 0 Processor 1 APIC 0x2 Jan 27 20:29:52 mx kernel: [11476.083484] x86: Booting SMP configuration: Jan 27 20:29:52 mx kernel: [11476.083445] Enabling non-boot CPUs ... Jan 27 20:29:52 mx kernel: [11476.082238] PM: Restoring platform NVS memory Jan 27 20:29:52 mx kernel: [11476.082238] ACPI: EC: EC started Jan 27 20:29:52 mx kernel: [11476.082190] ACPI: Low-level resume complete Sorry if the list is long. Thanks a lot regards