Coleman

[Coleman]

Ok, that’s good to know! Thank you for the info.

 

[Coleman]

I didn’t see a mention of it in the release notes, but 8.1.2 update that just came out seems to have resolved this problem for me.

 

[Coleman]

I have sent the requested logs in.

 

[Coleman]

Thanks! I should have closed this thread, support helped me get it going in my other thread. In my case, the link to the hardcoded location for the media sdk .so was the thing I needed to get it all working. Your instructions cover the whole library path, support just had me do the one file. I didn’t need anything with the plugin config.

It’s good to have all the bits summarized in one place though!

 

[Coleman]

I think you replied to the wrong topic, or you linked the trouble report. 😀

 

[Coleman]

Thanks for the reply! I’ll just do that, disable the power off mode on the laptop.

[Coleman]

Success! Although not quite in the way I expected, initially. When I connected, I received this message:

Cannot detect any display running. Do you want NoMachine to create a new display and proceed to connect to the desktop

This created a virtual desktop and connected me to that instead of to the existing session. After, I fiddled some more, I was able to get connected to the desktop with QS encoding.  I realized that the debug library was writing to the session file a lot, so I shut nx down, and put the original back, and everything started working when I started it back up. I don’t know if the debug was interfering with connecting to the desktop for certain, but everything seems to be working as I want now!

So in the end it does seem like the hardcoded path to the iHD driver was pretty key here, at least for me. This is kinda a key point for the KB article you guys have on compiling Intel Media SDK support into the kernel, those instructions are not accurate anymore, as Intel has discontinued part of it. The pieces are all still around, but not quite in the same ways any more referred to in the instructions.

For my setup, I didn’t have to do a kernel recompile, after looking, I was fairly confident the Ubuntu 20.04 kernel is built with it already in place. It seems like you just need to add the Intel Media SDK libs from repo(apt get)m then link the files to the names nx is looking for in /usr/lib/x86_64-linux-gnu and create the /opt/intel/mediasdk/lib64 path and link the driver (listed in vainfo) that is hardcoded for, at least for distros that have built their kernel with the Intel Media SDK already.

Thanks for the assistance!

[Coleman]

Output here…additional data point, I think it’s specifically when the screen is powered off from the power saver settings, not just from the screensaver blanking.

jason@CB5:/dev/dri$ xset q
Keyboard Control:  auto repeat:  off    key click percent:  0    LED mask:  00000000
XKB indicators:  00: Caps Lock:   off    01: Num Lock:    off    02: Scroll Lock: off
03: Compose:     off    04: Kana:        off    05: Sleep:       off
06: Suspend:     off    07: Mute:        off    08: Misc:        off
09: Mail:        off    10: Charging:    off    11: Shift Lock:  off
12: Group 2:     off    13: Mouse Keys:  off
auto repeat delay:  500    repeat rate:  20
auto repeating keys:  00ffffffdffffbbf  fadfffefffedffff  9fffffffffffffff   fff7ffffffffffff
bell percent:  50    bell pitch:  400    bell duration:  100
Pointer Control: acceleration:  2/1    threshold:  4
Screen Saver: prefer blanking:  no    allow exposures:  no
timeout:  60    cycle:  60
Colors: default colormap:  0x20    BlackPixel:  0x0    WhitePixel:  0xffffff
Font Path: /usr/share/fonts/X11/misc,/usr/share/fonts/X11/Type1,built-ins
DPMS (Energy Star): Standby: 0    Suspend: 0    Off: 120
DPMS is Enabled
Monitor is Off

[Coleman]

Hmm…well interesting, one is in one, the other, the other in the other…but nx is part of both groups so, should be ok, I imagine?

jason@CB5:/dev/dri$ groups nx
nx : nx video render
jason@CB5:/dev/dri$ ls -la
total 0
drwxr-xr-x   3 root root        100 Mar  8 15:01 .
drwxr-xr-x  22 root root       4300 Mar  8 15:01 ..
drwxr-xr-x   2 root root         80 Mar  8 15:01 by-path
crw-rw----+  1 root video  226,   0 Mar  8 15:01 card0
crw-rw----+  1 root render 226, 128 Mar  8 15:01 renderD128

I’ll create the folders and links, and re-test and report back.

Thanks!

[Coleman]

I think we’re getting closer! I still don’t have encode acceleration, I put the debug library back and generated a new log file, which I am attaching. The libraries are loading now, and it looks like it’s trying to access the QS hardware. Within that logfile are warnings that say there’s a permissions issue. Per the old Intel Media SDK instructions, I had already added both myself (the user account connecting) and the nx user to the “video” and “render” user groups, which I understood would be needed for access to the GPU devices. If there’s something permissions-wise beyond that which needs to happen, I’m not aware of it.

Suggestions for the next steps?

Thanks!

 

Attachments:

1. session_debug_20210308_01.txt

[Coleman]

Ok, I think I may have found the immediate problem:

@CB5:/usr/lib/x86_64-linux-gnu# ls libva* -la
lrwxrwxrwx 1 root root     20 Mar  1 16:37 libva-drm.so.2 -> libva-drm.so.2.800.0
-rw-r--r-- 1 root root  14664 Jun 29  2020 libva-drm.so.2.800.0
lrwxrwxrwx 1 root root     16 Mar  1 16:37 libva.so.2 -> libva.so.2.800.0
-rw-r--r-- 1 root root 162336 Jun 29  2020 libva.so.2.800.0
lrwxrwxrwx 1 root root     24 Jun 29  2020 libva-wayland.so.2 -> libva-wayland.so.2.800.0
-rw-r--r-- 1 root root  23248 Jun 29  2020 libva-wayland.so.2.800.0
lrwxrwxrwx 1 root root     20 Mar  1 16:37 libva-x11.so.2 -> libva-x11.so.2.800.0
-rw-r--r-- 1 root root  27336 Jun 29  2020 libva-x11.so.2.800.0

I don’t appear to actually have anything linked as “libva.so”.  I’m not super familiar with the intricacies of libva, so I’m not sure if it’s safe/would fix the issue, to just link libva-drm.so.2.800.0 as libva.so the way it’s currently linked as “libva.so.2”. i.e. not sure if that’s the current version of the same library and also compatible, so insight here would be helpful!

Thanks!

 

[Coleman]

Updated session log- I’m already looking to see if I can figure anything out about the obvious problem in the log (failure to load libva.so) but if you have ideas/knowledge already on this, please do let me know!

 

Attachments:

1. session_debug.txt

[Coleman]

It is:

apt search libva-drm2
Sorting… Done
Full Text Search… Done
libva-drm2/groovy,now 2.8.0-1 amd64 [installed,automatic]
Video Acceleration (VA) API for Linux — DRM runtime

[Coleman]

Certainly!

The server host is an Intel gen5 (Broadwell) processor, using the integrated graphics.

lspci:
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics [8086:1606] (rev 09) (prog-if 00 [VGA controller])
DeviceName: VGA compatible controller
Subsystem: Intel Corporation HD Graphics [8086:1606]
vainfo:
libva info: VA-API version 1.8.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_8
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.8 (libva 2.8.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics – 20.2.0 ()

Session attached.

Attachments:

1. session.txt

[Coleman]

About /usr/NX/var/log/node folder please check on the server side.

I finally found the session logs, per https://www.nomachine.com/FR11Q03892

As of version 7.0.208: The display agent log files should be stored in the correspondent session directory created under the home directory of the session owner, e.g. the user’s home/.nx/node/C-display-sessionid directory. Which is where my session logs are.

The session log is verifying (in addition to the client information) that I am getting only the software encoder, though I still have no indication why.

Thank you

[Author]

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