GeForce Now 1440P on Linux Chrome

geforce-now-resolution-interceptor.py

import json
import re
from mitmproxy import http

url_pattern = re.compile(r"^.*\.nvidiagrid.net/v2/session")
user_agent_pattern = re.compile(r"(Mozilla\/[\d\.]+) \(.+?\)")

def request(flow: http.HTTPFlow) -> None:
    # Check if the request matches the regex pattern
    if url_pattern.match(flow.request.pretty_url):

        flow.request.headers['nv-device-os'] = 'WINDOWS'
        flow.request.headers['sec-ch-ua-platform'] = '"WINDOWS"'
        flow.request.headers['sec-ch-ua-platform-version'] = '14.0.0'

        if "user-agent" in flow.request.headers:
            flow.request.headers["user-agent"] = user_agent_pattern.sub(
                    r'\1 (Windows NT 10.0; Win64; x64)',
                    flow.request.headers["user-agent"])

        if flow.request.headers.get("content-type") == "application/json":
            try:
                body = json.loads(flow.request.content)
                if body.get("sessionRequestData", {}).get("clientRequestMonitorSettings", None) is not None:
                    body["sessionRequestData"]["clientRequestMonitorSettings"] = [
                        {
                            "heightInPixels": 1440,
                            "framesPerSecond": 120,
                            "widthInPixels": 2560
                        }
                    ]
                flow.request.content = json.dumps(body).encode("utf-8")
            except json.JSONDecodeError:
                pass

  

pac-script.js

function FindProxyForURL(url, host) {
  var proxy = "PROXY <your proxy server IP>:<your proxy server port>";

  if (/^https:\/\/.+\.nvidiagrid.net/.test(url)) {
    // Should only proxy /v2/session, but the URL path is removed by Chrome
    return proxy;
  }

  return "DIRECT";
}

https://chromewebstore.google.com/detail/modify-http-header/pefdbdgalcpplfidblkgpjlpggfepipd

Also works... .*\.(geforcenow\.com)|(nvidia\.com)|(nvidiagrid\.net)|(geforce\.com)

This leads to a playable 1440p at 45mbps... at 75mbps the input latency is rediculously high. On the same machine with wIndows, I can comfortably run 100mbps, strange as the fast.com loaded latency speed tests are very close between OSs. I tried Proton unsuccessfully.

@FossPrime the reason why you're seeing high input latency is most likely because you don't have hardware acceleration.
See my previous comments: this one, that one

Nice that we don't need mitmproxy any more!

https://chromewebstore.google.com/detail/modify-http-header/pefdbdgalcpplfidblkgpjlpggfepipd

Also works... .*\.(geforcenow\.com)|(nvidia\.com)|(nvidiagrid\.net)|(geforce\.com)

This leads to a playable 1440p at 45mbps... at 75mbps the input latency is rediculously high. On the same machine with wIndows, I can comfortably run 100mbps, strange as the fast.com loaded latency speed tests are very close between OSs. I tried Proton unsuccessfully.

Any chance you could share more info on what you put on the headers? I've added "Chrome OS" & "CHROMEOS" but unable to identify the others but t;s not currently working thanks :)