Maybe -C option can help:
-C Requests compression of all data (including stdin, stdout,
stderr, and data for forwarded X11 and TCP connections). The
compression algorithm is the same used by gzip(1), and the
“level” can be controlled by the CompressionLevel option for
pro‐
tocol version 1. Compression is desirable on modem lines and
other slow connections, but will only slow down things on fast
networks. The default value can be set on a host-by-host basis
in the configuration files; see the Compression option.
2012/3/5 Sergey Manucharian <ingeniware@xxxxxxxxx>
> Hi folks,
>
> Regularly I do not use many Qt applications, mostly Skype. I run it over
> ssh tunnel from another computer within the same local network for long
> time. After recent system update I noticed it became very slow refreshing
> its graphics. I checked several Gtk and Qt applications and found that
> Gtk ones work almost with the "native" speed, while Qt ones with that
> damn slow redrawing...
>
> I tried ssh with both "ForwardX11" and "ForwardX11Trusted" - there is no
> difference. I'm using no DE with xmonad WM (tried TWM - no difference
> either) in x86_64 box.
>
> Any directions/advices/ideas?
>
> Thanks!
>
> --
> Cheers,
> Sergey
>
