[FreeNX-kNX] NX screen refresh performance

[Toni Asensi Esteve]

Chris wrote:
> Obviously other's experiences help and we could do with more feedback . . . 
.
A week has passed and no one answered with its case :-(. I'll try to comment 
on our own case, we have 
	freenx-server   0.7.3
	nx client for Windows 3.4.0-7

[...]

> What I did when I was looking at this, was to try the same tasks using both 
> high quality jpeg and RGB and compare how it seemed to be on the screen. 

In our case:  the speed difference was not a great one, the behaviour was a bit 
faster using the lossless RGB compresion.
 
> I found that I couldn't distinguish between the quality of image ( on a  
> spreadsheet, which is one of our core apps, lots of thin straight black 
> lines on a white background, just what the jpeg people say they aren't good
> at ) 
 
In our case:  the presentation made a visible difference. I attach screenshots 
of the configuration (with "modem" settings and setting both rgb and jpeg 
compression, jpeg at the highest quality) and obtaining a low quality result 
in some places of the screenshot (like the buttons), a result somewhat worse 
than the Windows remote desktop protocol one, which would make us look like if 
we had something of worse quality. This is very important. Maybe it's a 
setting that has to be tuned? :-?

Thanks for you attention:
Toni

-------------- next part --------------
A non-text attachment was scrubbed...
Name: 2 - jpeg case - configuration - jpeg at the highest quality.png
Type: image/png
Size: 25206 bytes
Desc: not available
URL: <http://mail.kde.org/pipermail/freenx-knx/attachments/20100526/e1f326a0/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 1 - jpeg case - configuration - modem.png
Type: image/png
Size: 29392 bytes
Desc: not available
URL: <http://mail.kde.org/pipermail/freenx-knx/attachments/20100526/e1f326a0/attachment-0001.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 3 - jpeg case - low quality result in some places, seen somewhat worse than remote desktop protocol, somewhat slower than rgb.png
Type: image/png
Size: 157883 bytes
Desc: not available
URL: <http://mail.kde.org/pipermail/freenx-knx/attachments/20100526/e1f326a0/attachment-0002.png>