====== Ubuntu - GPU - Drivers - Get the currently used graphics driver ======

===== Using lspci =====

<code bash>
lspci -k | grep -A 3 -E "(VGA|3D)"
</code>

returns:

<code bash>
0c:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 744c (rev c8)
	Subsystem: Gigabyte Technology Co., Ltd Device 240e
	Kernel driver in use: amdgpu
	Kernel modules: amdgpu
</code>

<WRAP info>
**NOTE:**  This shows that the kernel driver is **amdgpu**.

  * This indicates an AMD GPU.

</WRAP>

----

===== Using lshw =====

<code bash>
sudo lshw -c video
</code>

returns:

<code bash>
  *-display                 
       description: VGA compatible controller
       product: Navi 31 [Radeon RX 7900 XT/7900 XTX]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:0c:00.0
       logical name: /dev/fb0
       version: c8
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom fb
       configuration: depth=32 driver=amdgpu latency=0 resolution=3440,1440
       resources: irq:128 memory:e0000000-efffffff memory:f0000000-f01fffff ioport:e000(size=256) memory:f7b00000-f7bfffff memory:c0000-dffff
</code>

<WRAP info>
**NOTE:**  See the **configuration** line near the bottom.

  * This shows that the kernel driver is **amdgpu**.

</WRAP>

----

===== Check the kernel modules =====

==== Determine the PCI Bus ====

<code bash>
lspci | grep -i vga
</code>

returns:

<code bash>
0c:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 31 [Radeon RX 7900 XT/7900 XTX] (rev c8)
</code>

<WRAP info>
**NOTE:**  This shows the unique PCI Bus address of 0c:00.0.
</WRAP>

----

==== Use the PCI Bus to check what kernel modules are being used ====

<code bash>
lspci -s 0c:00.0 -v
</code>

returns:

<code bash>
0c:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 31 [Radeon RX 7900 XT/7900 XTX] (rev c8) (prog-if 00 [VGA controller])
	Subsystem: Gigabyte Technology Co., Ltd Device 240e
	Flags: bus master, fast devsel, latency 0, IRQ 129, IOMMU group 27
	Memory at f000000000 (64-bit, prefetchable) [size=32G]
	Memory at f800000000 (64-bit, prefetchable) [size=256M]
	I/O ports at e000 [size=256]
	Memory at fcb00000 (32-bit, non-prefetchable) [size=1M]
	Expansion ROM at fcc00000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: amdgpu
	Kernel modules: amdgpu
</code>

<WRAP info>
**NOTE:**  This shows that the kernel driver is **amdgpu**.

  * This indicates an AMD GPU.

</WRAP>

----