linux-6.12.x で nvidiaのドライバ（565.57.01）を使うためのパッチを書いたので公開します．
nvidiaのドライバは
の２種類があります．
このパッチは後者の proprietary NVIDIA kernel modules 用のパッチです．
なお 565.57.01にパッチを当てずに linux-6.12 を使うと，カーネルが以下のエラーを吐きます．
[ 8.015347] [ T1075] WARNING: CPU: 2 PID: 1075 at drm_open_helper+0x10b/0x130 [drm] [ 8.015600] [ T1075] Modules linked in: qrtr nls_utf8 nls_cp437 vfat fat cpufreq_powersave cpufreq_userspace cpufreq_conservative cpufreq_ondemand binfmt_misc intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek snd_hda_codec_generic snd_hda_scodec_component snd_soc_avs snd_soc_hda_codec kvm_intel snd_hda_ext_core snd_hda_codec_hdmi snd_soc_core snd_compress ac97_bus kvm snd_pcm_dmaengine ghash_clmulni_intel sha512_ssse3 snd_hda_intel sha256_ssse3 snd_intel_dspcfg sha1_ssse3 snd_hda_codec sha1_generic ofpart aesni_intel snd_hda_core snd_hwdep gf128mul crypto_simd snd_pcm spi_nor cryptd iTCO_wdt evdev snd_timer rapl intel_pmc_bxt mtd intel_cstate snd wmi_bmof mei_me pcspkr iTCO_vendor_support soundcore 8250 mei 8250_base serial_mctrl_gpio serial_base tpm_crb tpm_tis tpm_tis_core acpi_pad sg button sch_fq_codel nct6775 nct6775_core hwmon_vid coretemp i2c_dev parport_pc ppdev lp parport nvme_fabrics efi_pstore fuse [ 8.015625] [ T1075] configfs nfnetlink efivarfs tpm libaescfb ecdh_generic rng_core ecc dmi_sysfs ip_tables x_tables ipv6 autofs4 ext4 crc32c_generic mbcache jbd2 nvidia_uvm(PO) onboard_usb_dev nvidia_drm(PO) drm_ttm_helper hid_generic ttm nvidia_modeset(PO) sd_mod usbhid hid nvidia(PO) r8169 realtek mdio_devres i2c_designware_platform of_mdio xhci_pci i2c_designware_core fixed_phy iosf_mbi ahci fwnode_mdio xhci_hcd drm_kms_helper nvme libphy libahci intel_lpss_pci i2c_i801 crc32c_intel rtc_cmos usbcore nvme_core fan led_class drm i2c_mux spi_intel_pci intel_lpss spi_intel i2c_smbus hwmon libata idma64 usb_common vmd video thermal i2c_core wmi pinctrl_alderlake [ 8.017136] [ T1075] CPU: 2 UID: 0 PID: 1075 Comm: Xorg Tainted: P O 6.12.1-custom #1 [ 8.017424] [ T1075] Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE [ 8.017709] [ T1075] Hardware name: ASUS ZA9C-R49/PRIME Z790-P, BIOS 1661 06/25/2024 [ 8.017995] [ T1075] RIP: 0010:drm_open_helper+0x10b/0x130 [drm] [ 8.018292] [ T1075] Code: 83 c4 08 5b 5d 41 5c c3 cc cc cc cc 48 89 df e8 3b a8 fe ff 85 c0 74 9a 48 89 df 89 44 24 04 e8 bb fa ff ff 8b 44 24 04 eb d5 <0f> 0b b8 ea ff ff ff eb cc b8 ea ff ff ff eb c5 b8 f0 ff ff ff eb [ 8.018587] [ T1075] RSP: 0018:ffffc900022dfbf0 EFLAGS: 00010246 [ 8.018881] [ T1075] RAX: ffffffffa0505300 RBX: ffff8881251328c8 RCX: 0000000000000000 [ 8.019175] [ T1075] RDX: ffff888106ad8f80 RSI: ffff8881251328c8 RDI: ffff88811b13fd40 [ 8.019524] [ T1075] RBP: ffff88811b13fd40 R08: 0000000000000006 R09: ffff888100127dd0 [ 8.019817] [ T1075] R10: 00000000000000e2 R11: 0000000000000002 R12: ffff88810588c800 [ 8.020107] [ T1075] R13: ffffffffa0505300 R14: 00000000ffffffed R15: ffffc900022dfed4 [ 8.020396] [ T1075] FS: 00007fd994a75b00(0000) GS:ffff889fff680000(0000) knlGS:0000000000000000 [ 8.020686] [ T1075] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.020973] [ T1075] CR2: 000055dd7731c520 CR3: 0000000107ac4000 CR4: 0000000000752ef0 [ 8.021261] [ T1075] PKRU: 55555554 [ 8.021546] [ T1075] Call Trace: [ 8.021832] [ T1075] <TASK> [ 8.022115] [ T1075] ? drm_open_helper+0x10b/0x130 [drm] [ 8.022410] [ T1075] ? __warn.cold+0x93/0xed [ 8.022710] [ T1075] ? drm_open_helper+0x10b/0x130 [drm] [ 8.023035] [ T1075] ? report_bug+0xe8/0x130 [ 8.023308] [ T1075] ? handle_bug+0x53/0x90 [ 8.023584] [ T1075] ? exc_invalid_op+0x13/0x60 [ 8.023860] [ T1075] ? asm_exc_invalid_op+0x16/0x20 [ 8.024140] [ T1075] ? drm_open_helper+0x10b/0x130 [drm] [ 8.024428] [ T1075] drm_open+0x6a/0x100 [drm] [ 8.024712] [ T1075] drm_stub_open+0x92/0xd0 [drm] [ 8.024990] [ T1075] chrdev_open+0xa7/0x210 [ 8.025256] [ T1075] ? __pfx_chrdev_open+0x10/0x10 [ 8.025516] [ T1075] do_dentry_open+0x135/0x420 [ 8.025775] [ T1075] vfs_open+0x25/0xe0 [ 8.026059] [ T1075] path_openat+0xaef/0x1030 [ 8.026315] [ T1075] ? block_write_end+0x32/0x70 [ 8.026567] [ T1075] do_filp_open+0xaa/0x150 [ 8.026822] [ T1075] do_sys_openat2+0x8f/0xc0 [ 8.027085] [ T1075] __x64_sys_openat+0x4c/0x90 [ 8.027346] [ T1075] do_syscall_64+0x47/0x110 [ 8.027607] [ T1075] entry_SYSCALL_64_after_hwframe+0x71/0x79 [ 8.027868] [ T1075] RIP: 0033:0x7fd994e09b3c [ 8.028128] [ T1075] Code: 83 e2 40 75 51 89 f0 f7 d0 a9 00 00 41 00 74 46 80 3d 37 c5 0e 00 00 74 6a 89 da 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 90 00 00 00 48 8b 54 24 28 64 48 2b 14 25 [ 8.028396] [ T1075] RSP: 002b:00007ffcef8c3c00 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 [ 8.028665] [ T1075] RAX: ffffffffffffffda RBX: 0000000000080002 RCX: 00007fd994e09b3c [ 8.028933] [ T1075] RDX: 0000000000080002 RSI: 000055dd7732f2e0 RDI: 00000000ffffff9c [ 8.029198] [ T1075] RBP: 000055dd7732f2e0 R08: 0000000000000000 R09: 00007ffcef8c2d60 [ 8.029514] [ T1075] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 8.029801] [ T1075] R13: 000055dd7732f2e0 R14: 000055dd7732f2a0 R15: 000055dd7732ea00 [ 8.030051] [ T1075] </TASK> [ 8.030303] [ T1075] ---[ end trace 0000000000000000 ]---
このように nvidia_drm モジュールの，関数 drm_open_helper の中でクラッシュします
パッチの当て方
パッチはこれです
diff -uNr nvidia-565.57.01.orig/conftest.sh nvidia-565.57.01/conftest.sh --- nvidia-565.57.01.orig/conftest.sh 2024-10-11 02:21:35.000000000 +0900 +++ nvidia-565.57.01/conftest.sh 2024-11-29 12:09:25.554727553 +0900 @@ -6592,6 +6592,29 @@ compile_check_conftest "$CODE" "NV_DRM_OUTPUT_POLL_CHANGED_PRESENT" "" "types" ;; + drm_output_poll_changed) + # + # Determine whether drm_mode_config_funcs.output_poll_changed + # callback is present + # + # Removed by commit 446d0f4849b1 ("drm: Remove struct + # drm_mode_config_funcs.output_poll_changed") in v6.12. Hotplug + # event support is handled through the fbdev emulation interface + # going forward. + # + CODE=" + #if defined(NV_DRM_DRM_MODE_CONFIG_H_PRESENT) + #include <drm/drm_mode_config.h> + #else + #include <drm/drm_crtc.h> + #endif + int conftest_drm_output_poll_changed_available(void) { + return offsetof(struct drm_mode_config_funcs, output_poll_changed); + }" + + compile_check_conftest "$CODE" "NV_DRM_OUTPUT_POLL_CHANGED_PRESENT" "" "types" + ;; + drm_aperture_remove_conflicting_pci_framebuffers) # # Determine whether drm_aperture_remove_conflicting_pci_framebuffers is present. diff -uNr nvidia-565.57.01.orig/nvidia-drm/nvidia-drm-drv.c nvidia-565.57.01/nvidia-drm/nvidia-drm-drv.c --- nvidia-565.57.01.orig/nvidia-drm/nvidia-drm-drv.c 2024-10-10 20:58:12.000000000 +0900 +++ nvidia-565.57.01/nvidia-drm/nvidia-drm-drv.c 2024-11-29 12:33:10.346961800 +0900 @@ -1711,6 +1711,9 @@ .read = drm_read, .llseek = noop_llseek, +#if defined(FOP_UNSIGNED_OFFSET) + .fop_flags = FOP_UNSIGNED_OFFSET, +#endif }; static const struct drm_ioctl_desc nv_drm_ioctls[] = { diff -uNr nvidia-565.57.01.orig/nvidia-drm/nvidia-drm-sources.mk nvidia-565.57.01/nvidia-drm/nvidia-drm-sources.mk --- nvidia-565.57.01.orig/nvidia-drm/nvidia-drm-sources.mk 2024-10-10 20:52:47.000000000 +0900 +++ nvidia-565.57.01/nvidia-drm/nvidia-drm-sources.mk 2024-11-29 12:28:12.048249098 +0900 @@ -121,6 +121,7 @@ NV_CONFTEST_TYPE_COMPILE_TESTS += dma_resv_add_fence NV_CONFTEST_TYPE_COMPILE_TESTS += dma_resv_reserve_fences NV_CONFTEST_TYPE_COMPILE_TESTS += reservation_object_reserve_shared_has_num_fences_arg +NV_CONFTEST_TYPE_COMPILE_TESTS += drm_output_poll_changed NV_CONFTEST_TYPE_COMPILE_TESTS += drm_connector_has_override_edid NV_CONFTEST_TYPE_COMPILE_TESTS += drm_master_has_leases NV_CONFTEST_TYPE_COMPILE_TESTS += drm_file_get_master
パッチを当てたらカーネルモジュールをリビルドします．
$ sudo /usr/sbin/dkms build nvidia/565.57.01 --force $ sudo /usr/sbin/dkms install nvidia/565.57.01 --force
dkms コマンドには --force オプションを指定したほうが安全です．--forceをつけると，dkmsはドライバをリビルドして，強制（＝上書き）インストールします．
あとは再起動するだけで，完了です．
確認
dkmsの状態は
$ /usr/sbin/dkms status
で確認できます
