stanj

[stanj]

This is using dedicated PCI pass through with an M6000 Quadro GPU

I will have to reconnect with NVIDIA as they verified using Horizon View or a VNC Viewer or NoMachine would work

 

[stanj]

I will have to take a look

I have been side tracked with other work…

According to NVIDIA support and VMware the M6000 card is on the comparability list.

I will check again.

[stanj]

I connected a display to the M6000 card HDMI port and the display says “No Signal”

I see no errors in the /var/log/Xorg.0.log (below are the last few entries after connecting NoMachine

 

[1238442.646] AUDIT: Thu Feb 28 03:33:28 2019: 2143: client 7 connected from local host ( uid=42 gid=42 pid=2628 )

Auth name: MIT-MAGIC-COOKIE-1 ID: 569

[1238442.648] AUDIT: Thu Feb 28 03:33:28 2019: 2143: client 7 disconnected

[1290233.422] (–) NVIDIA(GPU-0): CNC HDMI (DFP-0): connected

[1290233.422] (–) NVIDIA(GPU-0): CNC HDMI (DFP-0): Internal TMDS

[1290233.423] (–) NVIDIA(GPU-0): CNC HDMI (DFP-0): 600.0 MHz maximum pixel clock

[1290233.423] (–) NVIDIA(GPU-0):

[1290234.340] (–) NVIDIA(GPU-0): CNC HDMI (DFP-0): connected

[1290234.340] (–) NVIDIA(GPU-0): CNC HDMI (DFP-0): Internal TMDS

[1290234.340] (–) NVIDIA(GPU-0): CNC HDMI (DFP-0): 600.0 MHz maximum pixel clock

[1290234.340] (–) NVIDIA(GPU-0):

[1290234.401] (–) NVIDIA(GPU-0): CNC HDMI (DFP-0): connected

[1290234.401] (–) NVIDIA(GPU-0): CNC HDMI (DFP-0): Internal TMDS

[1290234.401] (–) NVIDIA(GPU-0): CNC HDMI (DFP-0): 600.0 MHz maximum pixel clock

[1290234.401] (–) NVIDIA(GPU-0):

[1290258.339] (–) NVIDIA(GPU-0): DFP-0: disconnected

[1290258.339] (–) NVIDIA(GPU-0): DFP-0: Internal TMDS

[1290258.339] (–) NVIDIA(GPU-0): DFP-0: 600.0 MHz maximum pixel clock

[1290258.339] (–) NVIDIA(GPU-0):

[1290258.344] (–) NVIDIA(GPU-0): DFP-0: disconnected

[1290258.344] (–) NVIDIA(GPU-0): DFP-0: Internal TMDS

[1290258.344] (–) NVIDIA(GPU-0): DFP-0: 600.0 MHz maximum pixel clock

[1290258.344] (–) NVIDIA(GPU-0):

 

 

[stanj]

The first goal is to see if the VM will boot with the video card.

The NVIDIA M6000 card is currently set in the VM with PCI device to pass-through.

The VM has 21 vCPUS and 64 GB or RAM

I recall that we connected a display monitor to the video card last summer.  We could not get the display to show anything.  That is when I contacted NVIDA support and they  provided info that in order to see the display and run graphics, one of two options was needed: 1-Horizon View, 2-some form of a viewer (VNC or NoMachine)

What would the  attaching a display to the output of the video card, restoring xorg.conf, restarting Gdm, restarting NoMachine,  accomplish?

Is there some other option beside headless ?

[stanj]

I sent the log files via email.

CPU on the VM still shows 102.0% for nxnode.bin

 

 

[stanj]

I rebooted the VM and was able to connect NoMachine to the VM.

it is real slow moving around and even opening KDE desktop settings takes forever

I used putty to ssh into the VM and see that a process called nxnode.bin is showing 101.7 CPU%?

[stanj]

The xorg looks to be the same file that was generated for headless last time. I see the below in the file that was not in the original.

Section “Screen”

Identifier     “Screen0”

Device         “Device0”

Monitor        “Monitor0”

DefaultDepth    24

Option         “AllowEmptyInitialConfiguration” “True”

SubSection     “Display”

Virtual     1920 1200

Depth       24

EndSubSection

EndSection

[stanj]

I have emailed the log files

 

Stan

[stanj]

I will enable the debug by setting SessionLogLevel 7 and try a connection again and send the info.

 

No journal filess…….

$ journalctl -f | grep -i kde

No journal files were found.

[stanj]

This is strange.

I rebooted the VM today and connected the NoMachine from a Win 2016 VM RDP session as i did last Thursday.

But now all I see is a black screen with the mouse pointer arrow.

I can move the mouse pointer arrow around the black screen but i no longer see the KDE desktop

 

[stanj]

hi

I did option #2 and now can see the KDE RHEL 7 desktop.

Does this VM then still lake advantage of the NVIDIA Quadro GPU card?

[stanj]

Hi

Sorry for the late response. I have been out and tied up on other task

For #1 what is the process to turn display manager and X server off? This may help, but we will eventually need the NVIDIA graphics via the card.

For#2, the info at the link is posted below. I already have an xorg-conf file on the system. Is the below suggesting to enter the string — virtual=1920×1200 –busid {busid} in my current xorg-conf and don’t add in –use-display-device=None ?

Create an appropriate xorg.conf file for headless operation:

sudo nvidia-xconfig -a --allow-empty-initial-configuration --use-display-device=None \

--virtual=1920x1200 --busid {busid}

Replace {busid} with the bus ID you obtained in Step 1. Leave out --use-display-device=None if the GPU is headless, i.e. if it has no display outputs.Proceed with the VirtualGL configuration instructions.

[stanj]

ok,,

 

Are you saying to email the logs to  :  forum_at_nomachine_dot_com ?

 

If so, what should the subject line say?

 

[stanj]

I loaded the free version on the RHEL7 VM and installed the client on Win 2016 Server

When I log into the RHEL7 VM with NoMachine, I get a black screen (attached)?

According to NVIDIA support, i should be able see the screen on the RHEL7 Server that has the graphics.

On the server, i started the based software we use, and see the below

 

video_renderer: Fatal ERROR: unable to open X Display

DISPLAY environment variable is ‘(null)’

Not sure if i need to change a setting on the RHEL7 or the Client

 

Attachments:

1. Doc3.pdf

[stanj]

Hi,

Ok,

I have  copied NoMachine_6.4.6_1_x86_64.rpm onto the Linux VM which i believe is the free version

I have not installed it yet.

I assume i then need NoMachine_6.4.6_5 for my Win10 PC to access the Linux VM?

The VM has a NVIDIA GM200GL Quadro set as PCI Passthrough.

Will i need to enable H.264?

Thanks

 

[Author]

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