Steam Link Raspberry Pi 4b version 1.1.66.168 insta-crash issues

[ForkWNY]

When I launched SteamLink on my Raspberry Pi 4b earlier today, it updated to version 1.1.66.168 automatically. When launching remote play from the Raspberry Pi SteamLink (host PC is my Windows 10 Ryzen 7 3700x Gaming rig), remote play crashes on the Raspberry Pi 4b within seconds of loading the User Interface. The problem is always reproduceable.

I wasted time and re-flashed the Raspberry Pi 4b's micro SD card to the latest Raspberry Pi OS, re-did my configuration, installed SteamLink (which then auto-updated after install), and it hard freezes within seconds of Remote Play loading...all I have to do is scroll through the games with my Xbox 360 controller (connected to the Rasp Pi 4b) and it locks up hard. Even rebooting the Raspberry Pi 4b via SSH does not get it back up and running. I have to kill the power and turn it back on to get it to boot back up. Again, this crash issue is ALWAYS reproduceable on a freshly installed Raspberry Pi OS with NO add-ons or additional software installed.

Raspberry Pi OS version:
Linux raspberrypi 5.10.2-v7l+ #1385 SMP Wed Dec 23 11:56:36 GMT 2020 armv7l GNU/Linux

Connection: wired/gigabit ethernet
Resolution: 1080p@60Hz, HDMI out to 4K UHD TV

Never had problems with SteamLink (using same configuration) prior to the most recent update, so something is entirely out of whack with the latest version of SteamLink for Raspberry Pi 4b, or SteamLink is not compatible with the Pi OS version listed above (latest version of Pi OS via rpi-update).

[ForkWNY]

CRASH RESOLVED

Enabled HEVC video within SteamLink settings on the Rasp Pi 4b, no more crashing.

Question is...why would disabled HEVC cause so many problems? It was brutal...hard freezes after firing up Remote Play to my host gaming PC. UI would often lock right up before I'd have a chance to select a game.

IF anyone else encounters this issue on Raspberry Pi 4b, ensure that HEVC is ENABLED in SteamLink - Settings > Streaming > click "More" > HEVC Video <Enabled>

[Amosar]

I hit the same issue, and I don't know how to debug that. For me enabling HEVC doesn't solve anything :/

my raspberry spec are:
OS: Raspbian 10 buster
Kernel: armv7l Linux 5.10.4-v7l+
DE: LXDE
WM: OpenBox
with
Encodeur: Desktop OpenGL NV12 + libx264 main
Decodeur: Raspberry Pi hardware decoding (with HEVC enable or not)
https://gist.github.com/Amosar/684f0fc247a46dbee40452c9700133cc

and this is my host spec:
https://gist.github.com/Amosar/fb5bd4ecc04ef9627ad028cc8a3ca35b

[ForkWNY]

Have you tried increasing the video RAM? /boot/config.txt add the following line:
gpu_mem=128

You can also increase that value within the GUI. Preferences, Raspberry Pi Configuration, Performance.

Really shouldn't need to be higher than that. GPU mem is set dynamically in Raspberry Pi OS but some users mentioned that increasing gpu_mem helped them out.

A new SteamLink version was just released today. v1.1.67.169. I updated SteamLink and haven't had any issues. HEVC enabled. I'm running the same kernel 5.10.4-v71+ and have similar host specs to your host system.

[Amosar]

I have reinstalled raspbian and now it work, maybe it's the overclock setting that cause this issue.
That's not 100% stable but it work
I have overclocker the raspberry with coller master utility and forgotten to mention that

[ForkWNY]

Ah ok...I have not overclocked my Pi 4b. I'm using the 2GB model for Steam Link and have gpu_mem set to 128, which is slightly higher than the default (but again, probably not necessary since gpu mem is handled dynamically). It seems to handle 1080p@60Hz just fine. I wouldn't push it to 4k until it's known to work without performance issues.