I just started using Ubuntu about a month ago. It has worked smoothly until now. Now my PC is crashing all the time. I went in the folder /var/crash to see if there is anything unusual. This was in the folder.
ls -al /var/crash:
total 63504 drwxrwsrwt 2 root whoopsie 4096 Απρ 16 14:01 . drwxr-xr-x 15 root root 4096 Μαρ 30 12:48 .. -rw-r----- 1 angelos whoopsie 8715931 Απρ 13 23:02 _opt_microsoft_msedge_msedge.1000.crash -rw-r----- 1 root whoopsie 121927 Απρ 11 18:48 rtbth-dkms.0.crash -rw-r--r-- 1 root whoopsie 0 Απρ 11 18:48 rtbth-dkms.0.upload -rw------- 1 whoopsie whoopsie 37 Απρ 11 18:49 rtbth-dkms.0.uploaded -rw-r----- 1 angelos whoopsie 3716323 Απρ 16 14:01 _usr_bin_file-roller.1000.crash -rw-r----- 1 gdm whoopsie 730048 Απρ 11 18:34 _usr_libexec_gnome-session-binary.125.crash -rw-r----- 1 angelos whoopsie 51716198 Απρ 12 22:49 _usr_lib_x86_64-linux-gnu_opera_opera.1000.crash (I have been trying to fix my Bluetooth in the last few days, which I did not accomplish and the files seem pretty familiar)
Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz free -h : total used free shared buff/cache available Mem: 7,7Gi 2,0Gi 3,1Gi 534Mi 2,5Gi 4,8Gi Swap: 2,0Gi 0B 2,0Gi sysctl vm.swappiness: vm.swappiness = 60 swapon -s: Filename Type Size Used Priority /swapfile file 2097148 0 -2 sudo lshw -C memory: *-firmware description: BIOS vendor: Insyde physical id: 0 version: F.19 date: 05/06/2019 size: 128KiB capacity: 13MiB capabilities: pci upgrade shadowing cdboot bootselect edd int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int9keyboard int10video acpi usb biosbootspecification uefi *-cache:0 description: L1 cache physical id: 5 slot: L1 Cache size: 256KiB capacity: 256KiB capabilities: synchronous internal write-back unified configuration: level=1 *-cache:1 description: L2 cache physical id: 6 slot: L2 Cache size: 1MiB capacity: 1MiB capabilities: synchronous internal write-back unified configuration: level=2 *-cache:2 description: L3 cache physical id: 7 slot: L3 Cache size: 6MiB capacity: 6MiB capabilities: synchronous internal write-back unified configuration: level=3 *-memory description: System Memory physical id: 11 slot: System board or motherboard size: 8GiB *-bank:0 description: SODIMM DDR4 Synchronous 2400 MHz (0,4 ns) product: RMSA3260NA78HAF-2400 vendor: Ramaxel Technology physical id: 0 serial: 11C1552E slot: Bottom-Slot 1(left) size: 8GiB width: 64 bits clock: 2400MHz (0.4ns) *-bank:1 description: SODIMM DDR Synchronous [empty] physical id: 1 slot: Bottom-Slot 2(right) *-memory UNCLAIMED description: RAM memory product: Cannon Point-LP Shared SRAM vendor: Intel Corporation physical id: 14.2 bus info: pci@0000:00:14.2 version: 30 width: 64 bits clock: 33MHz (30.3ns) capabilities: pm bus_master cap_list configuration: latency=0 resources: memory:a141c000-a141dfff memory:a1422000-a1422fff ls -al /var/crash: total 63504 drwxrwsrwt 2 root whoopsie 4096 Απρ 16 14:01 . drwxr-xr-x 15 root root 4096 Μαρ 30 12:48 .. -rw-r----- 1 angelos whoopsie 8715931 Απρ 13 23:02 _opt_microsoft_msedge_msedge.1000.crash -rw-r----- 1 root whoopsie 121927 Απρ 11 18:48 rtbth-dkms.0.crash -rw-r--r-- 1 root whoopsie 0 Απρ 11 18:48 rtbth-dkms.0.upload -rw------- 1 whoopsie whoopsie 37 Απρ 11 18:49 rtbth-dkms.0.uploaded -rw-r----- 1 angelos whoopsie 3716323 Απρ 16 14:01 _usr_bin_file-roller.1000.crash -rw-r----- 1 gdm whoopsie 730048 Απρ 11 18:34 _usr_libexec_gnome-session-binary.125.crash -rw-r----- 1 angelos whoopsie 51716198 Απρ 12 22:49 _usr_lib_x86_64-linux-gnu_opera_opera.1000.crash lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 4K 1 loop /snap/bare/5 loop1 7:1 0 55,5M 1 loop /snap/core18/2344 loop2 7:2 0 399,4M 1 loop /snap/obs-studio/1284 loop3 7:3 0 91,4M 1 loop /snap/p3x-onenote/138 loop4 7:4 0 248,8M 1 loop /snap/gnome-3-38-2004/99 loop5 7:5 0 65,2M 1 loop /snap/gtk-common-themes/1519 loop6 7:6 0 61,9M 1 loop /snap/core20/1405 loop7 7:7 0 129,3M 1 loop /snap/teams/7 loop8 7:8 0 169,6M 1 loop /snap/spotify/58 loop9 7:9 0 129,8M 1 loop /snap/teams/6 loop10 7:10 0 61,9M 1 loop /snap/core20/1376 loop11 7:11 0 54,2M 1 loop /snap/snap-store/558 loop12 7:12 0 164,8M 1 loop /snap/gnome-3-28-1804/161 loop13 7:13 0 295,7M 1 loop /snap/vlc/2344 loop14 7:14 0 44,7M 1 loop /snap/snapd/15534 loop15 7:15 0 43,6M 1 loop /snap/snapd/15177 sr0 11:0 1 1024M 0 rom nvme0n1 259:0 0 238,5G 0 disk ├─nvme0n1p1 259:1 0 512M 0 part /boot/efi ├─nvme0n1p2 259:2 0 1K 0 part └─nvme0n1p5 259:3 0 238G 0 part / lspci -nnk:
00:00.0 Host bridge [0600]: Intel Corporation Coffee Lake HOST and DRAM Controller [8086:3e34] (rev 0c) Subsystem: Hewlett-Packard Company Coffee Lake HOST and DRAM Controller [103c:8532] Kernel driver in use: skl_uncore 00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 620 (Whiskey Lake) [8086:3ea0] (rev 02) Subsystem: Hewlett-Packard Company UHD Graphics 620 (Whiskey Lake) [103c:8532] Kernel driver in use: i915 Kernel modules: i915 00:04.0 Signal processing controller [1180]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [8086:1903] (rev 0c) Subsystem: Hewlett-Packard Company Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [103c:8532] Kernel driver in use: proc_thermal Kernel modules: processor_thermal_device 00:08.0 System peripheral [0880]: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model [8086:1911] Subsystem: Hewlett-Packard Company Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model [103c:8532] 00:12.0 Signal processing controller [1180]: Intel Corporation Cannon Point-LP Thermal Controller [8086:9df9] (rev 30) Subsystem: Hewlett-Packard Company Cannon Point-LP Thermal Controller [103c:8532] Kernel driver in use: intel_pch_thermal Kernel modules: intel_pch_thermal 00:14.0 USB controller [0c03]: Intel Corporation Cannon Point-LP USB 3.1 xHCI Controller [8086:9ded] (rev 30) Subsystem: Hewlett-Packard Company Cannon Point-LP USB 3.1 xHCI Controller [103c:8532] Kernel driver in use: xhci_hcd Kernel modules: xhci_pci 00:14.2 RAM memory [0500]: Intel Corporation Cannon Point-LP Shared SRAM [8086:9def] (rev 30) Subsystem: Hewlett-Packard Company Cannon Point-LP Shared SRAM [103c:8532] 00:16.0 Communication controller [0780]: Intel Corporation Cannon Point-LP MEI Controller #1 [8086:9de0] (rev 30) Subsystem: Hewlett-Packard Company Cannon Point-LP MEI Controller [103c:8532] Kernel driver in use: mei_me Kernel modules: mei_me 00:17.0 RAID bus controller [0104]: Intel Corporation 82801 Mobile SATA Controller [RAID mode] [8086:282a] (rev 30) Subsystem: Hewlett-Packard Company 82801 Mobile SATA Controller [RAID mode] [103c:8532] Kernel driver in use: ahci Kernel modules: ahci 00:1d.0 PCI bridge [0604]: Intel Corporation Cannon Point-LP PCI Express Root Port #9 [8086:9db0] (rev f0) Kernel driver in use: pcieport 00:1d.1 PCI bridge [0604]: Intel Corporation Cannon Point-LP PCI Express Root Port #10 [8086:9db1] (rev f0) Kernel driver in use: pcieport 00:1d.4 PCI bridge [0604]: Intel Corporation Cannon Point-LP PCI Express Root Port #13 [8086:9db4] (rev f0) Kernel driver in use: pcieport 00:1f.0 ISA bridge [0601]: Intel Corporation Cannon Point-LP LPC Controller [8086:9d84] (rev 30) Subsystem: Hewlett-Packard Company Cannon Point-LP LPC Controller [103c:8532] 00:1f.3 Audio device [0403]: Intel Corporation Cannon Point-LP High Definition Audio Controller [8086:9dc8] (rev 30) Subsystem: Hewlett-Packard Company Cannon Point-LP High Definition Audio Controller [103c:8532] Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel, snd_sof_pci_intel_cnl 00:1f.4 SMBus [0c05]: Intel Corporation Cannon Point-LP SMBus Controller [8086:9da3] (rev 30) Subsystem: Hewlett-Packard Company Cannon Point-LP SMBus Controller [103c:8532] Kernel driver in use: i801_smbus Kernel modules: i2c_i801 00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Point-LP SPI Controller [8086:9da4] (rev 30) Subsystem: Hewlett-Packard Company Cannon Point-LP SPI Controller [103c:8532] 01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15) DeviceName: Realtek Gaming GBE Family Controller Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [103c:8532] Kernel driver in use: r8169 Kernel modules: r8169 02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821] DeviceName: WLAN Subsystem: Hewlett-Packard Company RTL8821CE 802.11ac PCIe Wireless Network Adapter [103c:831a] Kernel driver in use: rtw_8821ce Kernel modules: rtw88_8821ce 03:00.0 Non-Volatile memory controller [0108]: SK hynix BC501 NVMe Solid State Drive 512GB [1c5c:1327] Subsystem: SK hynix BC501 NVMe Solid State Drive 512GB [1c5c:0000] Kernel driver in use: nvme Kernel modules: nvme uname -r:
5.13.0-40-generic after installing rtl8821ce-dkms,
dkms status:
rtbth/3.9.6: added rtl8821ce/v5.5.2_34066.20200325, 5.13.0-40-generic, x86_64: installed sudo dmesg | grep -i hci:
[ 0.676761] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.676770] ehci-pci: EHCI PCI platform driver [ 0.676785] ehci-platform: EHCI generic platform driver [ 0.676798] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.676801] ohci-pci: OHCI PCI platform driver [ 0.676811] ohci-platform: OHCI generic platform driver [ 0.676824] uhci_hcd: USB Universal Host Controller Interface driver [ 0.862771] ahci 0000:00:17.0: version 3.0 [ 0.865484] xhci_hcd 0000:00:14.0: xHCI Host Controller [ 0.865492] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1 [ 0.866574] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x110 quirks 0x0000000000009810 [ 0.866759] usb usb1: Product: xHCI Host Controller [ 0.866761] usb usb1: Manufacturer: Linux 5.13.0-40-generic xhci-hcd [ 0.875336] ahci 0000:00:17.0: AHCI 0001.0301 32 slots 2 ports 6 Gbps 0x3 impl RAID mode [ 0.875341] ahci 0000:00:17.0: flags: 64bit ncq sntf pm clo only pio slum part deso sadm sds apst [ 0.875822] xhci_hcd 0000:00:14.0: xHCI Host Controller [ 0.875826] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2 [ 0.875829] xhci_hcd 0000:00:14.0: Host supports USB 3.1 Enhanced SuperSpeed [ 0.875869] usb usb2: Product: xHCI Host Controller [ 0.875870] usb usb2: Manufacturer: Linux 5.13.0-40-generic xhci-hcd [ 0.882058] scsi host0: ahci [ 0.882234] scsi host1: ahci [ 1.207499] usb 1-3: new full-speed USB device number 2 using xhci_hcd [ 1.487603] usb 1-5: new high-speed USB device number 3 using xhci_hcd [ 1905.257593] usb 1-3: new full-speed USB device number 4 using xhci_hcd [ 2125.196327] usb 2-1: new SuperSpeed USB device number 2 using xhci_hcd 1 Answer
BIOS
HP 15q-ds1000tu (6EW00PA) Laptop
You have a very old BIOS version F.19 from 05/06/2019. There's a newer BIOS available, version F.38 Rev A, from Sep 7, 2021, available here.
Note: Confirm that I have the correct web page for your computer.
Note: Have good backups before performing the BIOS update.
Memory
Sounds like you have a memory (or BIOS) problem.
Go to and download/run their free memtest to test your memory. Get at least one complete pass of all the 4/4 tests to confirm good memory. This may take a few hours to complete.
Bluetooth
It sounds like you've been having bluetooth issues. I need to get more details about this. I suspect that the bluetooth driver (rtbth-dkms) that you installed is incorrect, and will need to be removed.
Show me dkms status.
SWAP
Let's bump your /swapfile from 2G to 4G.
Note: Incorrect use of the rm and dd commands can cause data loss. Suggest copy/paste.
In the terminal...
sudo swapoff -a # turn off swap sudo rm -i /swapfile # remove old /swapfile sudo dd if=/dev/zero of=/swapfile bs=1M count=4096 sudo chmod 600 /swapfile # set proper file protections sudo mkswap /swapfile # init /swapfile sudo swapon /swapfile # turn on swap free -h # confirm 8G RAM and 4G swap Edit /etc/fstab, using sudo -H gedit /etc/fstab or sudo pico /etc/fstab.
Confirm this /swapfile line in /etc/fstab... and confirm no other “swap” lines... use SPACES in this line... confirm NO TABS...
/swapfile none swap sw 0 0 reboot # reboot and verify operation 
