How to get 7900 XTX working?

[devling]

I finally pulled the plug and got some nice upgrades for my Linux machine. I have, however, had issues getting the 7900 XTX working. What I’ve done so far:

• Changed kernel to 6.1
• Installed Mesa 22.3.1 (and additional packages, like vulkan_radeon etc)
• Installed linux-firmware-git. Also tried manually downloading / copying the latest amdgpu firmware from the repo, just in case (no difference)
• Rebuilt initramfs
• Made sure I don’t have any other boot params that might interfere
• Pulled my hair

The GPU is recognised as a “VGA Compatible Adapter”, so I do get an image / desktop, but it is ofc horribly slow as there is no gpu acceleration.

Can’t say that I’m very good at figuring out these things, so I would appreciate some help of what’s needed. This is the amdgpu-related stuff from dmesg:

[    4.263635] [drm] amdgpu kernel modesetting enabled.
[    4.263703] amdgpu: Ignoring ACPI CRAT on non-APU system
[    4.263706] amdgpu: Virtual CRAT table created for CPU
[    4.263712] amdgpu: Topology: Add CPU node
[    4.263858] amdgpu 0000:03:00.0: vgaarb: deactivate vga console
[    4.263896] amdgpu 0000:03:00.0: enabling device (0006 -> 0007)
[    4.265811] amdgpu 0000:03:00.0: amdgpu: Fetched VBIOS from VFCT
[    4.265812] amdgpu: ATOM BIOS: 113-D7020100-102
[    4.265819] amdgpu 0000:03:00.0: [drm:jpeg_v4_0_early_init [amdgpu]] JPEG decode is enabled in VM mode
[    4.266009] amdgpu 0000:03:00.0: amdgpu: Trusted Memory Zone (TMZ) feature not supported
[    4.266034] amdgpu 0000:03:00.0: amdgpu: MEM ECC is not presented.
[    4.266035] amdgpu 0000:03:00.0: amdgpu: SRAM ECC is not presented.
[    4.266072] amdgpu 0000:03:00.0: amdgpu: VRAM: 24560M 0x0000008000000000 - 0x00000085FEFFFFFF (24560M used)
[    4.266074] amdgpu 0000:03:00.0: amdgpu: GART: 512M 0x0000000000000000 - 0x000000001FFFFFFF
[    4.266112] [drm] amdgpu: 24560M of VRAM memory ready
[    4.266113] [drm] amdgpu: 15911M of GTT memory ready.
[    4.268850] amdgpu 0000:03:00.0: amdgpu: CP RS64 enable
[    4.270073] amdgpu 0000:03:00.0: amdgpu: Will use PSP to load VCN firmware
[    4.552329] amdgpu 0000:03:00.0: amdgpu: RAP: optional rap ta ucode is not available
[    4.552332] amdgpu 0000:03:00.0: amdgpu: SECUREDISPLAY: securedisplay ta ucode is not available
[    4.552360] amdgpu 0000:03:00.0: amdgpu: smu driver if version = 0x00000032, smu fw if version = 0x00000034, smu fw program = 0, smu fw version = 0x004e4700 (78.71.0)
[    4.552363] amdgpu 0000:03:00.0: amdgpu: SMU driver if version not matched
[    4.718330] amdgpu 0000:03:00.0: amdgpu: SMU is initialized successfully!
[    4.746659] snd_hda_intel 0000:03:00.1: bound 0000:03:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu])
[    5.018406] amdgpu 0000:03:00.0: [drm:jpeg_v4_0_hw_init [amdgpu]] JPEG decode initialized successfully.
[    5.019769] kfd kfd: amdgpu: Allocated 3969056 bytes on gart
[    5.019870] amdgpu: sdma_bitmap: fff0
[    5.081058] amdgpu: HMM registered 24560MB device memory
[    5.081423] amdgpu: SRAT table not found
[    5.081423] amdgpu: Virtual CRAT table created for GPU
[    5.081976] amdgpu: Topology: Add dGPU node [0x744c:0x1002]
[    5.081980] kfd kfd: amdgpu: added device 1002:744c
[    5.081991] amdgpu 0000:03:00.0: amdgpu: SE 6, SH per SE 2, CU per SH 8, active_cu_number 96
[    5.082044] amdgpu 0000:03:00.0: amdgpu: ring gfx_0.0.0 uses VM inv eng 0 on hub 0
[    5.082045] amdgpu 0000:03:00.0: amdgpu: ring comp_1.0.0 uses VM inv eng 1 on hub 0
[    5.082045] amdgpu 0000:03:00.0: amdgpu: ring comp_1.1.0 uses VM inv eng 4 on hub 0
[    5.082046] amdgpu 0000:03:00.0: amdgpu: ring comp_1.2.0 uses VM inv eng 6 on hub 0
[    5.082046] amdgpu 0000:03:00.0: amdgpu: ring comp_1.3.0 uses VM inv eng 7 on hub 0
[    5.082046] amdgpu 0000:03:00.0: amdgpu: ring comp_1.0.1 uses VM inv eng 8 on hub 0
[    5.082047] amdgpu 0000:03:00.0: amdgpu: ring comp_1.1.1 uses VM inv eng 9 on hub 0
[    5.082047] amdgpu 0000:03:00.0: amdgpu: ring comp_1.2.1 uses VM inv eng 10 on hub 0
[    5.082048] amdgpu 0000:03:00.0: amdgpu: ring comp_1.3.1 uses VM inv eng 11 on hub 0
[    5.082048] amdgpu 0000:03:00.0: amdgpu: ring sdma0 uses VM inv eng 12 on hub 0
[    5.082049] amdgpu 0000:03:00.0: amdgpu: ring sdma1 uses VM inv eng 13 on hub 0
[    5.082049] amdgpu 0000:03:00.0: amdgpu: ring vcn_unified_0 uses VM inv eng 0 on hub 1
[    5.082050] amdgpu 0000:03:00.0: amdgpu: ring vcn_unified_1 uses VM inv eng 1 on hub 1
[    5.082050] amdgpu 0000:03:00.0: amdgpu: ring jpeg_dec uses VM inv eng 4 on hub 1
[    5.082051] amdgpu 0000:03:00.0: amdgpu: ring mes_kiq_3.1.0 uses VM inv eng 14 on hub 0
[    5.088179] amdgpu 0000:03:00.0: amdgpu: Using BACO for runtime pm
[    5.088380] [drm] Initialized amdgpu 3.49.0 20150101 for 0000:03:00.0 on minor 0
[    5.093439] fbcon: amdgpudrmfb (fb0) is primary device
[    5.287724] amdgpu 0000:03:00.0: [drm] fb0: amdgpudrmfb frame buffer device

lspci output:

03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 744c (rev c8)
03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device ab30
03:00.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 7446
03:00.3 Serial bus controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 7444

lshw output:

                 *-display
                      description: VGA compatible controller
                      product: Advanced Micro Devices, Inc. [AMD/ATI]
                      vendor: Advanced Micro Devices, Inc. [AMD/ATI]
                      physical id: 0
                      bus info: pci@0000:03:00.0
                      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 mode=3440x1440 visual=truecolor xres=3440 yres=1440
                      resources: iomemory:f00-eff iomemory:f80-f7f irq:186 memory:f000000000-f7ffffffff memory:f800000000-f80fffffff ioport:f000(size=256) memory:ec100000-ec1fffff memory:ec200000-ec21ffff

[megavolt]

Hello @devling

Maybe a dumb question… but your card is connected to:

@devling

bus info: pci@0000:03:00.0

It seems to be not the first pci slot.

Could it be possible that the connected pcie slot has limited bandwidth and therefore it is slow?

sudo dmidecode --type=slot

[fraz0815]

To get it working you need mesa compiled against llvm15, see this thread

Temporary solution to get 7900 XT(X) to work

Since these new GPU’s only deliver drivers for Ubuntu und RHEL, there is some work to do. mesa-git has to be compiled against llvm-git. These steps worked fine for me: First, we need to compile llvm. This can be done by using your favorite AUR helper. Make sure we disable the check() function by passing on the makeflags, since tests will fail if not building in a clean chroot: yay --mflags "--nocheck" -S llvm-minimal-git lib32-llvm-minimal-git Optionally, if you are scared prompts for sud…

[devling]

@fraz0815 I tried compiling mesa-git earlier, but it had a build dependency on llvm14 (and the build passed), so thought that was not the issue. Also read it would work just as well will 22.3+… I didn’t know about changing the dependency, and indeed after recompiling it with latest llvm-git it work like a charm!

Thanks a million.

[fraz0815]

You are welcome, I was very happy myself after I stumpled acrsoss the reddit post
Trying to spread the word, it is clearly missing on most pages. I think it only works OOB with Ubuntu/RHEL and official drivers from amd website.

[devling]

Yes, found a ton of people that described the firmware / mesa (22.3) update, and even some mentioning the mesa-git, but nowhere did it say you HAVE to compile it with llvm 15+. Asked on a few other sites as well, will post the solution there for others in the same situation