Re: [X2Go-User] X2Go speed (Gb LAN) vs. pure X

  I'm neither having the problem with pulse audio or with screen update.

But I've also got 4GB in the client and it's a Mac Pro-1 Xeon quad core machine.

  I have no issues with lag on Firefox or Chrome, I use Chrome to watch

Netflix video full screen and only very occasionally will I see brief lag.

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On Thu, 14 Jan 2016, Stefan Seidel wrote:

Date: Thu, 14 Jan 2016 16:12:17 +0100 From: Stefan Seidel <sseidel@vub.de> To: x2go-user@lists.x2go.org Subject: [X2Go-User] X2Go speed (Gb LAN) vs. pure X

Hi,

I am currently testing X2Go to be a replacement for our (1GBit/s) LAN XDMCP setup. I have set up a Jessie X2Go-PXE server VM with a Jessie chroot env.

It is working in principle, I can get a connection and the advantage of session suspend/resume is great. (Although I had to remove the pulseaudio startup from the x2gosessiond to make it work.)

However, I have two problems: the X session only sees one "big" screen.

1. How can I set client-specific X11 options? We have clients with complex multi-monitor setups. Xinerama doesn't seem to be working, either, once I have set the screens on the client (using Ctrl+Alt+F1, then xrandr) and connect,

2. Speed: for small screen updates (menu items etc.) - I would guess < 10k pixels - X2Go is very speedy and responsive. For anything larger (Google Chrome being a serious offender, as it always updates the whole rendering area) it is much slower. Even just scrolling in Firefox is "laggy". Pure X is much faster for these large screen updates. I have tried various settings, 4k-jpeg is almost acceptable speed-wise but still not fast enough.

Test setup: X2Go-Server: Core i7-860 (4x2.8GHz), 24G RAM X2Go-PXE: VM with 4GHz AMD, 2G RAM Clients: Pentium D 2.8GHz, 512MB RAM, nVidia Dual-DVI graphics (model 6200 IIRC) with 2 1600x1200 monitors -> 2400x1600 total screen area. Clients use NOUVEAU and report Chipset: "NVIDIA NV44"

Thanks in advance for any hints,

Stefan