I am updating to inform you that the most recent kernel solved the problem. here is my info.
Thank you for all your efforts.


System:    Kernel: 5.4.0-45-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Xfce 4.14.2 
           tk: Gtk 3.24.13 wm: Metacity dm: LightDM Distro: Linux Mint 20 Ulyana 
           base: Ubuntu 20.04 focal 
Machine:   Type: Laptop System: Hewlett-Packard product: HP EliteBook 6930p v: F.20 
           serial: <filter> Chassis: type: 10 serial: <filter> 
           Mobo: Hewlett-Packard model: 30DB v: KBC Version 87.2B serial: <filter> 
           BIOS: Hewlett-Packard v: 68PCU Ver. F.20 date: 12/08/2011 
Battery:   ID-1: BAT0 charge: 35.3 Wh condition: 35.5/57.7 Wh (61%) volts: 11.8/11.1 
           model: Hewlett-Packard Primary serial: <filter> status: Unknown 
CPU:       Topology: Dual Core model: Intel Core2 Duo T9550 bits: 64 type: MCP arch: Penryn rev: A 
           L2 cache: 6144 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 ssse3 vmx bogomips: 10640 
           Speed: 2751 MHz min/max: 800/2667 MHz Core speeds (MHz): 1: 2746 2: 2660 
Graphics:  Device-1: Intel Mobile 4 Series Integrated Graphics vendor: Hewlett-Packard 
           driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:2a42 
           Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa 
           resolution: 1440x900~60Hz 
           OpenGL: renderer: Mesa DRI Mobile Intel GM45 Express (CTG) v: 2.1 Mesa 20.0.8 
           direct render: Yes 
Audio:     Device-1: Intel 82801I HD Audio vendor: Hewlett-Packard driver: snd_hda_intel v: kernel 
           bus ID: 00:1b.0 chip ID: 8086:293e 
           Sound Server: ALSA v: k5.4.0-45-generic 
Network:   Device-1: Intel 82567LM Gigabit Network vendor: Hewlett-Packard driver: e1000e 
           v: 3.2.6-k port: 70e0 bus ID: 00:19.0 chip ID: 8086:10f5 
           IF: enp0s25 state: down mac: <filter> 
           Device-2: Broadcom and subsidiaries BCM4312 802.11b/g LP-PHY vendor: Hewlett-Packard 
           driver: wl v: kernel port: 7000 bus ID: 02:00.0 chip ID: 14e4:4315 
           IF: wls1 state: up mac: <filter> 
Drives:    Local Storage: total: 141.23 GiB used: 85.28 GiB (60.4%) 
           ID-1: /dev/sda vendor: Fujitsu model: MHW2120BJ FFS G2 size: 111.79 GiB speed: 3.0 Gb/s 
           serial: <filter> 
           ID-2: /dev/sdb type: USB vendor: Generic model: Multi-Card size: 29.44 GiB 
           serial: <filter> 
Partition: ID-1: / size: 70.53 GiB used: 59.67 GiB (84.6%) fs: ext4 dev: /dev/sda6 
           ID-2: swap-1 size: 1.86 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda5 
USB:       Hub: 1-0:1 info: Full speed (or root) Hub ports: 6 rev: 2.0 chip ID: 1d6b:0002 
           Hub: 2-0:1 info: Full speed (or root) Hub ports: 6 rev: 2.0 chip ID: 1d6b:0002 
           Device-1: 2-5:6 info: Realtek USB3.0-CRW type: Mass Storage driver: usb-storage 
           rev: 2.1 chip ID: 0bda:0309 
           Hub: 3-0:1 info: Full speed (or root) Hub ports: 2 rev: 1.1 chip ID: 1d6b:0001 
           Device-2: 3-1:2 info: HP Bluetooth 2.0 Interface [Broadcom BCM2045] type: Bluetooth 
           driver: btusb rev: 2.0 chip ID: 03f0:171d 
           Hub: 4-0:1 info: Full speed (or root) Hub ports: 2 rev: 1.1 chip ID: 1d6b:0001 
           Hub: 5-0:1 info: Full speed (or root) Hub ports: 2 rev: 1.1 chip ID: 1d6b:0001 
           Hub: 6-0:1 info: Full speed (or root) Hub ports: 2 rev: 1.1 chip ID: 1d6b:0001 
           Hub: 7-0:1 info: Full speed (or root) Hub ports: 2 rev: 1.1 chip ID: 1d6b:0001 
           Hub: 8-0:1 info: Full speed (or root) Hub ports: 2 rev: 1.1 chip ID: 1d6b:0001 
Sensors:   System Temperatures: cpu: 40.0 C mobo: 28.0 C 
           Fan Speeds (RPM): N/A 
Repos:     No active apt repos in: /etc/apt/sources.list 
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http: //packages.linuxmint.com ulyana main upstream import backport
           2: deb http: //la-mirrors.evowise.com/ubuntu focal main restricted universe multiverse
           3: deb http: //la-mirrors.evowise.com/ubuntu focal-updates main restricted universe multiverse
           4: deb http: //la-mirrors.evowise.com/ubuntu focal-backports main restricted universe multiverse
           5: deb http: //security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
           6: deb http: //archive.canonical.com/ubuntu/ focal partner
           Active apt repos in: /etc/apt/sources.list.d/official-source-repositories.list 
           1: deb-src http: //packages.linuxmint.com ulyana main upstream import backport
           2: deb-src http: //la-mirrors.evowise.com/ubuntu focal main restricted universe multiverse
           3: deb-src http: //la-mirrors.evowise.com/ubuntu focal-updates main restricted universe multiverse
           4: deb-src http: //la-mirrors.evowise.com/ubuntu focal-backports main restricted universe multiverse
           5: deb-src http: //security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
           6: deb-src http: //archive.canonical.com/ubuntu/ focal partner
Info:      Processes: 251 Uptime: 3h 55m Memory: 3.75 GiB used: 1.54 GiB (41.0%) Init: systemd 
           v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 7/9 Client: Unknown python3.8 client 
           inxi: 3.0.38 
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