I booted Ubuntu 18.04 to my SSD in Hp probook 445 G6. The problem I have is battery life, it works roughly for 3.5-4 hours with moderate load. But official document says it will run upto 11-hours with Windows.
So I have installed tlp and put some basic configs. But still no real improvement with battery.
I havent installed any graphics drivers, still with default installed graphics. I have tried to install AMD graphics but it went horribly wrong.
Simply how can I imporve my battery life at least upto 7 hours with Ubuntu 18.04.
Spec :
AMD Ryzen 7 PRO 2700U APU Integrated Radeon Vega Graphics
Kernel : 5.3.0-40-generic
Normally I would run with 7-8 Firefox tabs (with YouTube), vscode, vlc player.
Powertop device-stat gives following:
Usage Device name
17.8% CPU use
25098% Display backlight
100.0% PCI Device: Advanced Micro Devices, Inc. [AMD/ATI] Rav
100.0% PCI Device: Advanced Micro Devices, Inc. [AMD] Device
100.0% PCI Device: Advanced Micro Devices, Inc. [AMD] Device
100.0% PCI Device: Advanced Micro Devices, Inc. [AMD] Device
100.0% Radio device: rtw_pci
100.0% USB device: xHCI Host Controller
100.0% USB device: USB2.0 Hub
100.0% PCI Device: Advanced Micro Devices, Inc. [AMD] Device
100.0% PCI Device: Device 1987:5012
100.0% PCI Device: Realtek Semiconductor Co., Ltd. RTL8822BE
100.0% PCI Device: Advanced Micro Devices, Inc. [AMD] FCH SAT
100.0% PCI Device: Advanced Micro Devices, Inc. [AMD/ATI] Dev
100.0% USB device: xHCI Host Controller
100.0% PCI Device: Realtek Semiconductor Co., Ltd. RTS522A PC
100.0% USB device: USB OPTICAL MOUSE (PIXART)
100.0% PCI Device: Advanced Micro Devices, Inc. [AMD] Device
I have installed powertop as suggested here, but its not autotuning.
modprobe cpufreq_stats failedLoaded 0 prior measurements Cannot load from file /var/cache/powertop/saved_parameters.powertop
