[arch-general] qt applications over ssh tunnel: very slow redrawing

[Jarek Sedlacek]

That may increase the performance, but doesn't explain why GTK apps are so
much faster.

Thanks,
Jarek Sedlacek




On Mon, Mar 5, 2012 at 2:20 PM, Victor Silva <vfbsilva at gmail.com> wrote:

> 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 at gmail.com>
>
> > 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
> >
>