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#1 2020-03-04 03:46:50

WhyDoWeWonder
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Registered: 2020-02-15
Posts: 17

Outputting to Video through HDMI and dockign port wired to NVIDIA card

I have a Lenovo P53 laptop, the outputs are wired to an NVIDIA graphics card. I recently set up optimus-manager and have been using hybrid mode with prime render offload. I came across this article about setting up an intel virtual output to display on the second monitor. How can I do that with my current setup? I'm already running Xorg off the NVIDIA GPU.

Last edited by WhyDoWeWonder (2020-03-04 03:47:03)

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#2 2020-03-04 07:17:57

seth
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Registered: 2012-09-03
Posts: 51,039

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#3 2020-03-07 01:40:57

WhyDoWeWonder
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Registered: 2020-02-15
Posts: 17

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

I read through the guide and ending up at http://us.download.nvidia.com/XFree86/L … ndr14.html. I followed the steps and ran into an error I couldn't solve. (Last quote in this post)

My Xorg config.

Section "ServerLayout"
	Identifier "layout"
	Screen 0 "intel"
	Inactive "nvidia"
	Option "AllowNVIDIAGPUScreens"
EndSection

Section "Device"
	Identifier "intel"
	Driver "modesetting"
	BusID "PCI:0:2:0"
	Option "DRI" "3"
EndSection

Section "Screen"
	Identifier "intel"
	Device "intel"
EndSection

Section "Device"
	Identifier "nvidia"
	Driver "nvidia"
	BusID "PCI:1:0:0"
	Option "Coolbits" "28"
EndSection

Section "Screen"
	Identifier "nvidia"
	Device "nvidia"
EndSection

xrandr --listproviders

Providers: number : 2
Provider 0: id: 0x43 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 1 associated providers: 0 name:modesetting
Provider 1: id: 0x2b5 cap: 0x0 crtcs: 0 outputs: 0 associated providers: 0 name:NVIDIA-G0

xrandr --setprovideroutputsource NVIDIA-G0 modesetting

X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  140 (RANDR)
  Minor opcode of failed request:  35 (RRSetProviderOutputSource)
  Value in failed request:  0x2b5
  Serial number of failed request:  16
  Current serial number in output stream:  17

Last edited by WhyDoWeWonder (2020-03-07 15:53:07)

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#4 2020-03-07 08:48:27

seth
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Registered: 2012-09-03
Posts: 51,039

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

The provider list does not suggest that anything is wired to the nvidia chip, output of "lspci"?

nb: please use "code" tags, not "quote" tags for file contents and shell I/O
Consider to edit your previous post itr as well.

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#5 2020-03-07 15:55:01

WhyDoWeWonder
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Registered: 2020-02-15
Posts: 17

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

Ok.

lspci

00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 0d)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 0d)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile) (rev 02)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 0d)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
00:15.0 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #0 (rev 10)
00:15.1 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #1 (rev 10)
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
00:1b.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #17 (rev f0)
00:1b.4 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #21 (rev f0)
00:1c.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #1 (rev f0)
00:1c.5 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #6 (rev f0)
00:1c.6 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #7 (rev f0)
00:1c.7 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #8 (rev f0)
00:1e.0 Communication controller: Intel Corporation Cannon Lake PCH Serial IO UART Host Controller (rev 10)
00:1f.0 ISA bridge: Intel Corporation Device a30e (rev 10)
00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (7) I219-LM (rev 10)
01:00.0 VGA compatible controller: NVIDIA Corporation TU106GLM [Quadro RTX 3000 Mobile / Max-Q] (rev a1)
03:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM951/PM951 (rev 01)
52:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
53:00.0 Wireless controller [0d40]: Intel Corporation XMM7360 LTE Advanced Modem (rev 01)
54:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)

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#6 2020-03-07 20:46:34

seth
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Registered: 2012-09-03
Posts: 51,039

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

'key… it checks in as regular VGA device, but has no crtc and no output
%)

a) did you power down the GPU? What does "nvidia-smi" report?
b) can you configure it in the BIOS/UEFI?

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#7 2020-03-09 20:55:31

WhyDoWeWonder
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Registered: 2020-02-15
Posts: 17

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

a) The GPU is powered down dynamically, it's only powered on when I use it. nvidia-smi returns:

Mon Mar  9 16:52:47 2020       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.64       Driver Version: 440.64       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  Quadro RTX 3000     Off  | 00000000:01:00.0 Off |                  N/A |
| N/A   44C    P8     5W /  N/A |    110MiB /  5934MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0      1093      G   /usr/lib/Xorg                                108MiB |
+-----------------------------------------------------------------------------+

b) Yes I can, I can select switchable or dedicated graphics. I have it on swichable because I need the battery life.

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#8 2020-03-09 22:11:30

seth
Member
Registered: 2012-09-03
Posts: 51,039

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

The GPU needss to be powered when you seek to use it's output.
Since this is a Turing chip, you can maybe (i don't know whether that works in the reverse PRIME scenario as well) make use if https://download.nvidia.com/XFree86/Lin … ement.html
https://wiki.archlinux.org/index.php/PR … er_offload

But as long as the GPU is actively used as output, it cannot be completely powered down (eg. by bbswitch, I assume optimus-manager is doing this as well)

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#9 2020-03-09 23:43:29

WhyDoWeWonder
Member
Registered: 2020-02-15
Posts: 17

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

As far as I know, Optimus-manager leaves GPU power management (at least for my configuration) to the Nvidia driver which handles it quite well. I've already followed the instructions at https://download.nvidia.com/XFree86/Lin … ement.html and set up the Turing power managment. I just need to figure out how to get external monitors to work. I can keep my GPU powered when I need to, what do I need to do to get my monitors to work after constantly running a program on the GPU?

Last edited by WhyDoWeWonder (2020-03-09 23:46:43)

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#10 2020-03-10 07:26:42

seth
Member
Registered: 2012-09-03
Posts: 51,039

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

Check the output of "xrandr --listproviders", the nvida GPU needs to have a crtc and an output (or some)
I'm not sure whether "constantly running a program on the GPU" will do, please undo the RTD3 PM efforts (any power saving) to establish a functional baseline and increase power saving from there.

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#11 2020-03-10 19:18:49

WhyDoWeWonder
Member
Registered: 2020-02-15
Posts: 17

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

Okay done, what now?

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#12 2020-03-10 20:53:32

seth
Member
Registered: 2012-09-03
Posts: 51,039

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

What's the updated output of "xrandr --listproviders"? Does the nvidia chip present you w/ a crtc and some outputs?

In that case you can try to set the provider output (and it should no longer fail unlike in post #3)

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#13 2020-03-11 22:09:51

WhyDoWeWonder
Member
Registered: 2020-02-15
Posts: 17

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

I removed the 80-nvidia-pm.rules in /lib/udev/rules.d/ and put

options nvidia "NVreg_DynamicPowerManagement=0x00"

in /etc/modprobe.d/nvidia.conf. I have not changed my xorg config and both xrandr --listproviders and --setprovideroutputsource return the same output. Should I try removing optimus-manager?

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#14 2020-08-21 20:54:11

themontyhouse
Member
Registered: 2020-04-29
Posts: 4

Re: Outputting to Video through HDMI and dockign port wired to NVIDIA card

I've been able to use the HDMI port in hybrid mode. I used axrand and once it's open click on the screen menu and enable HDMI and then you're set. Only problem I have is it goes past the bottom of the screen on my HDMI. I haven't had time to mess with it but it works for me

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