W3/W510 HDMI/WiFi issue.

padgett

The more I look, the stranger I find.

 

In testing my tablets Wifi behaviour using speedtest.net. Both W3 and W510 report download speeds an order of magnitude slower when the HDMI is connected. 20ishMB/s when not connected and 2ishMB/s when is (several different tests). QOS setting has no effect.

 

Note: have seen as high as 6 MB/s with HDMI connected but erratic, always much slower than not.

 

Now this raises some possibilities:

1) when HDMI graphics are in use, the graphics drivers walk all over the WiFi.

2) when HDMI is connected, WiFi is automagically optomised for screaming video rather than TCP/IP.

3) ????

 

I do not have any screaming video services. Has anyone noticed a performance impact when watching a online movie with W3 or W510 connected to a big screen ?

 

ps tests with external WiFi adapter indicate that (1) is likely;

24" Monitor 1920X1080: 26 MB/s

24" Monitor 1280x800 :  37 MB/s

W3 display only:             39 MB/s

disconnect external adapter

W3 display only:              14 MB/s

 

So two factors:

1) W3 WiFi is not as strong as W510

2) Extended displays particularly 1920/1080 severely impacts WiFi speed.         

elemein

Is streaming video not already TCP? I had no idea it was UDP.