I am running Fedora 31 on an HP Envy 17t laptop with a NVIDIA MX250
gpu. I have installed the NVIDIA driver downloaded from NVIDA, and it
seems to have installed just fine. I have installed CUDA, as far as I
can tell.
I am trying to use the GPU rendering capabilities of Blender, a 3D
modeling package. However, the package does not believe there is a
CUDA compatible GPU installed.
I *think* it's because I'm actually running the Intel VGA controller.
So, if I'm right, my question is, how do I disable the Intel VGA
controller (or not make it the default) so it uses the NVIDIA
controller.
Some more information:
First, of course, graphics seems to work in general. Blender runs
fine, but (for those of you who might use blender), when using the
Cycles renderer, I can only render using the CPU.
I'm using KDE as my desktop.
There's nothing in my BIOS setup screen (when I hit ESC on bootup and
then F10 for BIOS settings) about graphics controller or intel
I have secure boot turned off.
$ uname -aLinux localhost.localdomain 5.6.8-200.fc31.x86_64 #1 SMP Wed
Apr 29 19:10:01 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
$ grep '/usr/s\?bin' /etc/systemd/system/display-
manager.serviceExecStart=/usr/bin/sddm
$hwinfo | grep VGA7: PCI 02.0: 0300 VGA compatible controller (VGA)
Model: "Intel VGA compatible controller" Attached to: #37 (VGA
compatible controller) Attached to: #37 (VGA compatible controller)
$hwinfo | grep "3D controller" E: ID_PCI_SUBCLASS_FROM_DATABASE=3D
controller22: PCI 200.0: 0302 3D controller Model: "nVidia 3D
controller"
$lshw... *-pci description: Host bridge product:
Intel Corporation vendor: Intel Corporation physical
id: 100 bus info: pci@0000:00:00.0 version:
0c width: 32 bits clock: 33MHz *-
display description: VGA compatible
controller product: UHD Graphics vendor: Intel
Corporation physical id: 2 bus info: pci@0000:0
0:02.0 version: 02 width: 64
bits clock: 33MHz capabilities: pciexpress msi
pm vga_controller bus_master cap_list rom configuration:
driver=i915 latency=0 resources: irq:141 memory:b2000000-
b2ffffff memory:c0000000-cfffffff ioport:5000(size=64) memory:c0000-
dffff...
*-pci:1 description: PCI bridge product:
Intel Corporation vendor: Intel
Corporation physical id: 1c.4 bus info:
pci@0000:00:1c.4 version: f0 width: 32
bits clock: 33MHz capabilities: pci pciexpress
msi pm normal_decode bus_master cap_list configuration:
driver=pcieport resources: irq:123 ioport:4000(size=4096)
memory:b3000000-b3ffffff ioport:a0000000(size=301989888) *-
display description: 3D
controller product: GP108M [GeForce
MX250] vendor: NVIDIA
Corporation physical id: 0 bus info:
pci@0000:02:00.0 version: a1 width: 64
bits clock: 33MHz capabilities: pm msi
pciexpress bus_master cap_list configuration:
driver=nvidia latency=0 resources: irq:16
memory:b3000000-b3ffffff memory:a0000000-afffffff memory:b0000000-
b1ffffff ioport:4000(size=128)
$lsmod | grep
nvidianvidia_drm 53248 0nvidia_modeset 1118208 1
nvidia_drmnvidia 20504576 4
nvidia_modesetipmi_msghandler 118784 1
nvidiadrm_kms_helper 237568 2
nvidia_drm,i915drm 598016 13
drm_kms_helper,nvidia_drm,i915
The following is a little odd. This used to load, but while
floundering about, I removed and reinstalled the Nvidia driver from
NVIDIA. Now it won't load:
$ nvidia-settings
ERROR: Unable to load info from any available system
$ nvidia-smi
nvidia-smiSat May 2 13:52:58 2020 +-----------------------------
------------------------------------------------+| NVIDIA-SMI
440.82 Driver Version: 440.82 CUDA Version: 10.2 ||--
-----------------------------+----------------------+----------------
------+| GPU Name Persistence-M| Bus-Id Disp.A |
Volatile Uncorr. ECC || Fan Temp Perf Pwr:Usage/Cap| Memory-
Usage | GPU-Util Compute M.
||===============================+======================+==============
========|| 0 GeForce MX250 Off | 00000000:02:00.0 Off
| N/A || N/A 48C P0 N/A / N/A | 0MiB
/ 4042MiB | 0% Default |+-------------------------------+---
-------------------+--------------------
--
+
+-------------------------------------------------------------
----------------+|
Processes: GPU
Memory || GPU PID Type Process
name Usage ||=========================
====================================================|| No running
processes found |
I assume the tainting stuff below is because I'm using the driver
downloaded from NVIDIA.$dmesg
[ 3.106647] i915 0000:00:02.0: fb0: i915drmfb frame buffer
device[ 3.824513] nvidia: loading out-of-tree module taints
kernel.[ 3.824525] nvidia: module license 'NVIDIA' taints
kernel.[ 3.824526] Disabling lock debugging due to kernel
taint[ 3.829796] nvidia: module verification failed: signature
and/or required key missing - tainting kernel[ 3.839347] nvidia-
nvlink: Nvlink Core is being initialized, major device number
239[ 3.839692] nvidia 0000:02:00.0: enabling device (0006 ->
0007)[ 4.039633] NVRM: loading NVIDIA UNIX x86_64 Kernel
Module 440.82 Wed Apr 1 20:04:33 UTC 2020[ 4.090987] nvidia-
modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX
platforms 440.82 Wed Apr 1 19:41:29 UTC 2020[ 4.094488] [drm]
[nvidia-drm] [GPU ID 0x00000200] Loading driver[ 4.094490] [drm]
Initialized nvidia-drm 0.0.0 20160202 for 0000:02:00.0 on minor 1
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