Tentative fix for NVIDIA 470.256.02 driver for Linux 6.14-rc1

nvidia-470xx-fix-linux-6.14.patch

From bee3ff1153f7b42491d2a0552d6f9a66a307ec1a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joan=20Bruguera=20Mic=C3=B3?= <[email protected]>
Date: Sun, 15 Dec 2024 17:56:03 +0000
Subject: [PATCH] Tentative fix for NVIDIA 470.256.02 driver for Linux 6.14-rc1

---
 nvidia-drm/nvidia-drm-drv.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nvidia-drm/nvidia-drm-drv.c b/nvidia-drm/nvidia-drm-drv.c
index 0b1181d..b50b17a 100644
--- a/nvidia-drm/nvidia-drm-drv.c
+++ b/nvidia-drm/nvidia-drm-drv.c
@@ -882,7 +882,10 @@ static struct drm_driver nv_drm_driver = {
     .name                   = "nvidia-drm",
 
     .desc                   = "NVIDIA DRM driver",
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 14, 0)
+    // Rel. commit. "drm: remove driver date from struct drm_driver and all drivers" (Jani Nikula, 4 Dec 2024)
     .date                   = "20160202",
+#endif
 
 #if defined(NV_DRM_DRIVER_HAS_DEVICE_LIST)
     .device_list            = LIST_HEAD_INIT(nv_drm_driver.device_list),
-- 
2.48.1

fedora 43 + GP106-90 card

   executing: '/usr/sbin/ldconfig'...
   executing: '/usr/sbin/systemctl daemon-reload'...
-> done.
-> Driver file installation is complete.
-> Installing DKMS kernel module:
-> done.
ERROR: Unable to load the 'nvidia-drm' kernel module.
ERROR: Installation has failed.  Please see the file '/var/log/nvidia-installer.log' for details.  You may find suggestions on fixing installation problems in the README available on the Linux driver download page at www.nvidia.com.

dmesg output

[    5.086256] nvidia: module license 'NVIDIA' taints kernel.
[    5.086577] Disabling lock debugging due to kernel taint
[    5.086981] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[    5.087512] nvidia: module license taints kernel.
[    5.367824] nvidia-nvlink: Nvlink Core is being initialized, major device number 237
[    5.368269] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  470.256.02  Thu May  2 14:37:44 UTC 2024
[    5.648982] nvidia_modeset: Unknown symbol __acpi_video_get_backlight_type (err -2)
[   25.830569] NVRM: GPU 0000:00:10.0: RmInitAdapter failed! (0x22:0x56:667)
[   25.831979] NVRM: GPU 0000:00:10.0: rm_init_adapter failed, device minor number 0

lspci output

00:10.0 3D controller: NVIDIA Corporation GP106 [P106-100] (rev a1)