Re: bad image quality with tigervnc server

2016-05-24 Thread Miroslav Vadkerti
Hi Mike, Thanks very much, I applied your SQL and we now have a sharp image in guacamole :) I also found out that we see the best performance with ultra encoding, which seems to be also what tigervnc is using. Best regards, /M On Mon, May 23, 2016 at 10:07 PM, Mike Jumper

Re: bad image quality with tigervnc server

2016-05-23 Thread Mike Jumper
Hi Miroslav, It's likely that TigerVNC is using JPEG to encode the updates it send to Guacamole, hence the artifacts / poor quality. This will also lead to performance degradation, as the JPEG artifacts will decrease the efficiency of the PNG compression used by Guacamole for most images. You

bad image quality with tigervnc server

2016-05-23 Thread Miroslav Vadkerti
Hi, I am experiencing bad image quality when connecting to my TigerVNC server via guacamole. With the TigerVNC viewer the image is sharp. Any idea what could be wrong? Could be that the guacamole vnc client is using wrong encoding or jpeg transport? Thanks, /M