I have searched and found many different answers on google but am looking for the correct method for unbinding and disabling a pci device.
I want to unbind Intel GPU.
~ > lspci
00:00.0 Host bridge: Intel Corporation 11th Gen Core Processor Host Bridge/DRAM Registers (rev 05)
00:01.0 PCI bridge: Intel Corporation 11th Gen Core Processor PCIe Controller #1 (rev 05)
00:02.0 VGA compatible controller: Intel Corporation TigerLake-H GT1 [UHD Graphics] (rev 01)
00:04.0 Signal processing controller: Intel Corporation TigerLake-LP Dynamic Tuning Processor Participant (rev 05)
00:06.0 PCI bridge: Intel Corporation 11th Gen Core Processor PCIe Controller #0 (rev 05)
00:07.0 PCI bridge: Intel Corporation Tiger Lake-H Thunderbolt 4 PCI Express Root Port #0 (rev 05)
00:08.0 System peripheral: Intel Corporation GNA Scoring Accelerator module (rev 05)
00:0a.0 Signal processing controller: Intel Corporation Tigerlake Telemetry Aggregator Driver (rev 01)
00:0d.0 USB controller: Intel Corporation Tiger Lake-H Thunderbolt 4 USB Controller (rev 05)
00:0d.2 USB controller: Intel Corporation Tiger Lake-H Thunderbolt 4 NHI #0 (rev 05)
00:14.0 USB controller: Intel Corporation Tiger Lake-H USB 3.2 Gen 2x1 xHCI Host Controller (rev 11)
00:14.2 RAM memory: Intel Corporation Tiger Lake-H Shared SRAM (rev 11)
00:14.3 Network controller: Intel Corporation Tiger Lake PCH CNVi WiFi (rev 11)
00:15.0 Serial bus controller: Intel Corporation Tiger Lake-H Serial IO I2C Controller #0 (rev 11)
00:15.1 Serial bus controller: Intel Corporation Tiger Lake-H Serial IO I2C Controller #1 (rev 11)
00:15.2 Serial bus controller: Intel Corporation Device 43ea (rev 11)
00:1c.0 PCI bridge: Intel Corporation Tiger Lake-H PCI Express Root Port #5 (rev 11)
00:1d.0 PCI bridge: Intel Corporation Tiger Lake-H PCI Express Root Port #9 (rev 11)
00:1f.0 ISA bridge: Intel Corporation Tiger Lake-H LPC/eSPI Controller (rev 11)
00:1f.3 Audio device: Intel Corporation Tiger Lake-H HD Audio Controller (rev 11)
00:1f.4 SMBus: Intel Corporation Tiger Lake-H SMBus Controller (rev 11)
00:1f.5 Serial bus controller: Intel Corporation Tiger Lake-H SPI Controller (rev 11)
01:00.0 VGA compatible controller: NVIDIA Corporation GA104M [GeForce RTX 3080 Mobile / Max-Q 8GB/16GB] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GA104 High Definition Audio Controller (rev a1)
02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller PM9A1/PM9A3/980PRO
03:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge DD 2018] (rev 06)
04:02.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge DD 2018] (rev 06)
04:04.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge DD 2018] (rev 06)
05:00.0 USB controller: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge DD 2018] (rev 06)
2d:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
2e:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller PM9A1/PM9A3/980PRO
~ > lspci -t
-[0000:00]-+-00.0
+-01.0-[01]--+-00.0
| \-00.1
+-02.0
+-04.0
+-06.0-[02]----00.0
+-07.0-[03-2c]----00.0-[04-2c]--+-02.0-[05]----00.0
| \-04.0-[06-2c]--
+-08.0
+-0a.0
+-0d.0
+-0d.2
+-14.0
+-14.2
+-14.3
+-15.0
+-15.1
+-15.2
+-1c.0-[2d]----00.0
+-1d.0-[2e]----00.0
+-1f.0
+-1f.3
+-1f.4
\-1f.5
Intel gpu is on 00:02.0
Why do some solutions have “tee” in the command and others not? How do you confirm the device is powered off after?
Is this correct below?
echo 0000:02:00.0 | sudo tee /sys/bus/pci/devices/0000:02:00.0/driver/unbind
or this
echo “0000:02:00.0” > /sys/bus/pci/drivers/ehci_hcd/unbind
However I want this to last after reboots, so is a udev rule a better option?