Oh and for the record, framedrops and stutter does not happen in any other games. For example I can play Bioshock: Infinite on Ultra settings and stream it to my steam link without any problems whatsoever.

When I play Shadow of Mordor without streaming, I already get a CPU usage of about 70-80%. So when on top of that my CPU also needs to do software encoding (when streaming), everything breaks down.

I also reverted to NVIDIA 358.09 because steam seems to crash every few minutes on 358.13. But hardware encoding is not used with these drivers either.

I've been trying to enable hardware encoding in my Steam for Linux client since whenever the option became available, but the option is never saved. Every time I restart Steam the box is unchecked again. I'm guessing it's not available yet on Linux?

Running Ubuntu 14.04, kernel 3.19.0-33-generic on an Intel Core2 Duo E8500 with 8GB RAM and an nVidia GTX 560Ti 2GB

Fermi generation nvidia cards including the GTX 560Ti do not have hardware encoding.

Have the same issue: hardware encoding option is not saved after client restart and nvidia settings shows 0% Video Engine Usage when streaming.

My host system specs: http://pastebin.com/GUZPB2J0

Hi,

same here. Just got my Steam-Link and tried to get hardware encoding working on my linux host system, but it does not work. I also didn't find an error message on the terminal after starting steam from there.It always uses the software encoder (Nvidia Settings shows 0% for the video engine utilization also).

My System:
Open Suse Tumbleweed 64bit with latest steam beta and latest steam link beta build.
Nvidia 358.16
Geforce GTX 970
Intel Core i 5 3570k

The gpu should be capable of doing the hw encoding fine.

Is there anything wrong on my side (if yes, how to debug futher ? )or is the feature simply not implemented yet?

Many thanks,
Christian

Ditto.

Tried SteamOS->Workstation and Workstation->SteamOS - either way results in software encoding.

SteamOS: i5-6500, GTX770 352.55
Workstation (Archlinux): i7-2600K, GTX660 358.16

SteamOS: Tried installing libnvidia-encode1 which pulled in libnvcuvid1 (FWIW).

Tried Steam Beta client both ends. Tried 'Prefer NVFBC...' both ends.

Have the same problem in Ubuntu 14.04.3 64bits (i5-2500, 16GB-RAM, GTX750Ti with 361.18).

In Grid Autosport I have stops in Streaming, like if the CPU can't assume the work of execute the game and make the streaming at the same time in certain moments

EDIT: I just read this in GamingOnLinux. Can someone test it. This days I'm not in home:

https://www.gamingonlinux.com/articles/steam-beta-adds-hardware-accelerated-encoding-for-nvidia-on-linux-steam-controller-major-update.6633

EDIT: I just read this in GamingOnLinux. Can someone test it. This days I'm not in home:

Doesn't work for me. I installed Steam Client Beta on both machines, enabled hardware encoding and tried to stream from Ubuntu 14.04 (GTX 750Ti, 355.11) to SteamOS (GT 440).
Encoding doesn't work. It still says 'Capture method set to Desktop OpenGL NV12 + libx264 baseline' in streaming info. Maybe it is Ubuntu issue? How can I check if NVENC is enabled in Ubuntu?

I installed cuda toolkit ('cuda-7-5' package from nvidia cuda repository - https://developer.nvidia.com/cuda-downloads) and now NVENC finally works. During cuda installation I was forced to install nvidia 352 driver instead of 355 because nvidia cuda repo for Ubuntu 14.04 doesn't support 355 driver. It would be awesome if nvidia put NVENC support into the main driver package.

So, I replaced parts of my computer (new motherboard, new CPU and new RAM), and decided to try again. Seems like one of the most recent Steam Beta updates has fixed my issue. I can now stream shadow of mordor in 1080p with 60fps (ultra settings) to my steam link, without any hiccups using NVFBC, and it reports to be using NVENC.

I'm not entirely sure this problem was fixed thanks to the hardware upgrade, or that a software update actually fixed it, but for me the problem is gone now.