[cmiranda@localhost ~]$ dmesg | grep -iE "vga|amd|gpu"
[    0.020572] RAMDISK: [mem 0x647fe000-0x66fdbfff]
[    0.020618] ACPI: VFCT 0x000000007AFC3000 006C84 (v01 APPLE  Apple00  00000001 AMD  31504F47)
[    0.115080] You have booted with nomodeset. This means your GPU drivers are DISABLED
[    0.355442] pci 0000:00:02.0: vgaarb: setting as boot VGA device
[    0.355442] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[    0.355442] pci 0000:03:00.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[    0.355444] pci 0000:00:02.0: vgaarb: no bridge control possible
[    0.355444] pci 0000:03:00.0: vgaarb: bridge control possible
[    0.355445] pci 0000:03:00.0: vgaarb: overriding boot device
[    0.355446] vgaarb: loaded
[    0.903344] fb0: EFI VGA frame buffer device
[    1.628364] AMD-Vi: AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
[    1.628365] AMD-Vi: AMD IOMMUv2 functionality not available on this system
[    1.879335] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables amdgpu kernel modesetting.
[    4.375086] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules
[    4.582245] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables amdgpu kernel modesetting.
[    4.609237] Modules linked in: rt2x00usb(+) rt2800lib rt2x00lib irqbypass applesmc(+) amdgpu(-) acpi_cpufreq(-) mac80211 crct10dif_pclmul crc32_pclmul brcmfmac uvcvideo ghash_clmulni_intel snd_hda_codec_hdmi intel_cstate i915 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 hci_uart videobuf2_common brcmutil snd_hda_intel apple_ib_als(OE) snd_intel_dspcfg btqca intel_uncore videodev industrialio_triggered_buffer btrtl cfg80211 joydev snd_hda_codec kfifo_buf intel_rapl_perf btbcm pcspkr btintel industrialio mc snd_hda_core mei_me i2c_i801 idma64 libarc4 mmc_core snd_hwdep bluetooth mei cec intel_pch_thermal sbs ecdh_generic rfkill ecc sbshc apple_gmux acpi_tad apple_bl ip_tables cdc_mbim cdc_wdm nvme cdc_ncm usbnet nvme_core mii amd_iommu_v2 gpu_sched i2c_algo_bit ttm drm_kms_helper drm crc32c_intel video pkcs8_key_parser fuse apple_ib_tb(OE) apple_ibridge(OE) bce(OE) snd_pcm snd_seq snd_timer snd_seq_device snd soundcore bcm5974 hid_apple
[    4.609355] Modules linked in: rt2x00usb(+) rt2800lib rt2x00lib irqbypass applesmc(+) amdgpu(-) acpi_cpufreq(-) mac80211 crct10dif_pclmul crc32_pclmul brcmfmac uvcvideo ghash_clmulni_intel snd_hda_codec_hdmi intel_cstate i915 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 hci_uart videobuf2_common brcmutil snd_hda_intel apple_ib_als(OE) snd_intel_dspcfg btqca intel_uncore videodev industrialio_triggered_buffer btrtl cfg80211 joydev snd_hda_codec kfifo_buf intel_rapl_perf btbcm pcspkr btintel industrialio mc snd_hda_core mei_me i2c_i801 idma64 libarc4 mmc_core snd_hwdep bluetooth mei cec intel_pch_thermal sbs ecdh_generic rfkill ecc sbshc apple_gmux acpi_tad apple_bl ip_tables cdc_mbim cdc_wdm nvme cdc_ncm usbnet nvme_core mii amd_iommu_v2 gpu_sched i2c_algo_bit ttm drm_kms_helper drm crc32c_intel video pkcs8_key_parser fuse apple_ib_tb(OE) apple_ibridge(OE) bce(OE) snd_pcm snd_seq snd_timer snd_seq_device snd soundcore bcm5974 hid_apple


[cmiranda@localhost ~]$ lspci | grep "VGA"
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile)
03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Vega 12 [Radeon Pro Vega 20] (rev c0)
04:00.1 Non-VGA unclassified device: Apple Inc. T2 Bridge Controller (rev 01)
04:00.2 Non-VGA unclassified device: Apple Inc. T2 Secure Enclave Processor (rev 01)


[cmiranda@localhost ~]$ glxinfo | grep "OpenGL renderer"
OpenGL renderer string: llvmpipe (LLVM 10.0.0, 256 bits)


[cmiranda@localhost ~]$ xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 3360 x 2100, current 3360 x 2100, maximum 3360 x 2100
default connected primary 3360x2100+0+0 0mm x 0mm
   3360x2100     90.00* 


[cmiranda@localhost ~]$ xrandr --listproviders
Providers: number : 0