Disabled dedicated GPU powers on after suspend (and also just randomly)

I have a laptop with integrated AMD graphics and discrete Nvidia GTX 1650Ti. $ sudo lspci ... 01:00.0 VGA compatible controller: NVIDIA Corporation TU117M [GeForce GTX 1650 Ti Mobile] (rev a1) 01:00.1 Audio device: NVIDIA Corporation Device 10fa (rev a1) ... 05:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Renoir (rev c7) Distro: Ubuntu 21.04 Kernel: 5.11.0-17-generic I use $ sudo prime-select intel to disable Nvidia Graphics and also set PCI power management to auto using TLP: $ sudo tlp-stat /sys/bus/pci/devices/0000:01:00.0/power/control = auto (0x030000, VGA compatible controller, no driver) /sys/bus/pci/devices/0000:01:00.1/power/control = auto (0x040300, Audio device, snd_hda_intel) This works great, the GPU is in low power mode and battery life is good: $ cat /sys/bus/pci/devices/0000:01:00.0/power_state D3cold But after I use suspend the GPU starts to consume more power again: $ cat /sys/bus/pci/devices/0000:01:00.0/power_state D0 This also happens randomly during laptop being on sometimes. Please help. This thing halves my laptop's battery life.