Nouveau fails to load

[DocentDAMP]

Hi,
Any nouveau developers or power users here?

I put a GTX 460 1GB in a modern computer in hope to get a hi-res console with nouveau.
But as soon as the nouveau module is loaded the screen goes black. I retrieved the following dmesg output via ssh:

[ 154.495379] ------------[ cut here ]------------
[ 154.495379] nouveau 0000:08:00.0: timeout
[ 154.495389] nouveau 0000:08:00.0: bus: MMIO read of 00000000 FAULT at 610250 [ IBUS ]
[ 154.495437] WARNING: CPU: 14 PID: 643 at drivers/gpu/drm/nouveau/nvkm/engine/disp/piocnv50.c:68 nv50_disp_pioc_init+0x1c5/0x250 [nouveau]
[ 154.495438] Modules linked in: nouveau(+) ccm nct6775 hwmon_vid snd_hda_codec_realtek edac_mce_amd snd_hda_codec_generic kvm_amd rt73usb mxm_wmi i2c_algo_bit ledtrig_audio snd_hda_codec_hdmi ttm rt2x00usb kvm snd_hda_intel snd_intel_dspcfg rt2x00lib drm_kms_helper snd_hda_codec irqbypass nls_iso8859_1 mac80211 nls_cp437 snd_hda_core cec crct10dif_pclmul vfat crc32_pclmul snd_hwdep cfg80211 fat snd_pcm rc_core ghash_clmulni_intel rfkill syscopyarea crc_itu_t sysfillrect libarc4 r8169 wmi_bmof snd_timer ccp sysimgblt aesni_intel fb_sys_fops snd realtek sp5100_tco crypto_simd libphy cryptd soundcore i2c_piix4 glue_helper rng_core k10temp evdev mac_hid pcspkr wmi pinctrl_amd gpio_amdpt acpi_cpufreq drm agpgart ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 crc32c_intel xhci_pci xhci_hcd [last unloaded: nouveau]
[ 154.495455] CPU: 14 PID: 643 Comm: modprobe Tainted: G W 5.6.4-arch1-1 #1
[ 154.495456] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450M-HDV R4.0, BIOS P3.70 11/14/2019
[ 154.495495] RIP: 0010:nv50_disp_pioc_init+0x1c5/0x250 [nouveau]
[ 154.495496] Code: 8b 40 10 48 8b 78 10 4c 8b 77 50 4d 85 f6 75 03 4c 8b 37 e8 9d 93 e1 fa 4c 89 f2 48 c7 c7 73 99 fa c0 48 89 c6 e8 ed cf 83 fa <0f> 0b 41 8b 44 24 50 85 c0 74 be 48 03 5d 78 48 89 df e8 64 7a c3
[ 154.495498] RSP: 0018:ffffa09d00b2f658 EFLAGS: 00010282
[ 154.495499] RAX: 0000000000000000 RBX: 0000000000610250 RCX: 0000000000000000
[ 154.495499] RDX: 0000000000000001 RSI: 0000000000000082 RDI: 00000000ffffffff
[ 154.495500] RBP: ffff8903d2d43c00 R08: 0000000000000c51 R09: 0000000000000004
[ 154.495500] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8903c45b3800
[ 154.495501] R13: 0000000000000005 R14: ffff8903d4b76e80 R15: ffff8903d2fdee88
[ 154.495502] FS: 00007f7040035740(0000) GS:ffff8903d6b80000(0000) knlGS:0000000000000000
[ 154.495502] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 154.495503] CR2: 00007ff626056020 CR3: 000000020979e000 CR4: 00000000003406e0
[ 154.495504] Call Trace:
[ 154.495537] nvkm_object_init+0x3e/0x100 [nouveau]
[ 154.495568] nvkm_ioctl_new+0x177/0x1f0 [nouveau]
[ 154.495608] ? nv04_disp_root_new+0x60/0x60 [nouveau]
[ 154.495639] nvkm_ioctl+0xde/0x180 [nouveau]
[ 154.495670] ? nvif_object_init+0x8f/0x140 [nouveau]
[ 154.495700] nvif_object_init+0xdb/0x140 [nouveau]
[ 154.495739] oimm507b_init+0x6d/0xc0 [nouveau]
[ 154.495779] nv50_oimm_init+0xfd/0x130 [nouveau]
[ 154.495819] nv50_ovly_new+0x11d/0x150 [nouveau]
[ 154.495858] nv50_head_create+0x11f/0x210 [nouveau]
[ 154.495900] nv50_display_create+0x227/0x970 [nouveau]
[ 154.495940] nouveau_display_create+0x3eb/0x5d0 [nouveau]
[ 154.495979] nouveau_drm_device_init+0x176/0x730 [nouveau]
[ 154.496019] nouveau_drm_probe+0x1fd/0x2f0 [nouveau]
[ 154.496021] local_pci_probe+0x42/0x80
[ 154.496024] ? pci_match_device+0xd7/0x100
[ 154.496025] pci_device_probe+0x104/0x1a0
[ 154.496027] really_probe+0x147/0x3c0
[ 154.496029] driver_probe_device+0xb6/0x100
[ 154.496031] device_driver_attach+0x53/0x60
[ 154.496032] __driver_attach+0x8a/0x150
[ 154.496033] ? device_driver_attach+0x60/0x60
[ 154.496034] ? device_driver_attach+0x60/0x60
[ 154.496035] bus_for_each_dev+0x89/0xd0
[ 154.496037] bus_add_driver+0x14d/0x1f0
[ 154.496038] driver_register+0x6c/0xc0
[ 154.496040] ? 0xffffffffc0795000
[ 154.496041] do_one_initcall+0x59/0x240
[ 154.496043] do_init_module+0x5c/0x230
[ 154.496045] load_module+0x2725/0x29e0
[ 154.496049] ? __do_sys_init_module+0x169/0x190
[ 154.496050] __do_sys_init_module+0x169/0x190
[ 154.496054] do_syscall_64+0x4e/0x150
[ 154.496055] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 154.496056] RIP: 0033:0x7f7040160dfe
[ 154.496057] Code: 48 8b 0d 95 f0 0b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 62 f0 0b 00 f7 d8 64 89 01 48
[ 154.496058] RSP: 002b:00007fff936d2bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000af
[ 154.496058] RAX: ffffffffffffffda RBX: 00005610f3f13ec0 RCX: 00007f7040160dfe
[ 154.496059] RDX: 00005610f3f17130 RSI: 000000000044a871 RDI: 00007f703ee4c010
[ 154.496059] RBP: 00007f703ee4c010 R08: 00005610f3f1301a R09: 0000000000000000
[ 154.496060] R10: 00005610f3f13010 R11: 0000000000000246 R12: 00005610f3f17130
[ 154.496060] R13: 0000000000000009 R14: 00005610f3f13ff0 R15: 00005610f3f13ec0
[ 154.496062] ---[ end trace 481ae27f7d1fd0a0 ]---
[ 154.496308] nouveau 0000:08:00.0: disp: ch 5 timeout1: 00000000
[ 154.496312] nouveau 0000:08:00.0: bus: MMIO read of 00000000 FAULT at 610250 [ IBUS ]
[ 154.496316] nouveau: DRM:00000000:0000857b: init failed with -16
[ 154.498703] nouveau 0000:08:00.0: DRM: oimm857b allocation failed: -16
[ 154.498704] nouveau 0000:08:00.0: bus: MMIO read of 00000000 FAULT at 610250 [ IBUS ]
[ 154.500402] nouveau 0000:08:00.0: bus: MMIO read of 00000000 FAULT at 610200 [ IBUS ]
[ 154.502108] nouveau 0000:08:00.0: bus: MMIO read of 00000000 FAULT at 610210 [ IBUS ]
[ 154.503790] nouveau 0000:08:00.0: bus: MMIO read of 00000000 FAULT at 610230 [ IBUS ]
[ 154.580070] [TTM] Finalizing pool allocator
[ 154.580076] [TTM] Finalizing DMA pool allocator
[ 154.580137] [TTM] Zone kernel: Used memory at exit: 0 KiB
[ 154.580140] [TTM] Zone dma32: Used memory at exit: 0 KiB
[ 154.580669] nouveau 0000:08:00.0: bus: MMIO write of 00000000 FAULT at 610024 [ IBUS ]
[ 154.581230] nouveau 0000:08:00.0: bus: MMIO write of 00000000 FAULT at 610024 [ IBUS ]
[ 154.582397] nouveau: probe of 0000:08:00.0 failed with error -16

Kernel 5.6.4, Arch Linux, AMD Ryzen 1700X, Asrock motherboard with B450 chipset.

Grateful for any help.