Re: Wierd behavior

Wed, 05 Jan 2005 03:20:52 -0800

because of memory alignment issues, you shouldn't use 24-bit color with vnc.
using it will cause a significant performance issue.

you're better off using 16- or 32-bit ( multiples of 8 ).

j-


On Jan 4, 2005, at 1:31 PM, John Aldrich wrote:

Actually, I'm running in 24-bit color in X. I like having maximum color
depth when I'm on the local console. Would you like me to post my xorg.conf?
:-)

-----Original Message-----
From: James Weatherall [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 04, 2005 11:44 AM
To: 'John Aldrich'; 'RealVNC List (E-mail)'
Cc: 'VNC List (E-mail)'
Subject: RE: Wierd behavior


John,

There's no such thing as "full colour mode" in X - that's a VNC Viewer
option.  Are you sure you're not doing the exact opposite of what I'm
suggesting?

To clarify:
- Run your X server with -depth 16
- Run your VNC Viewer with Low Colour or Medium Colour (not Full Colour)

I'm a little surprised that your viewer doesn't just stay in low colour mode
when you run it - AutoSelect will only switch to Full Colour if it thinks
that the connection between the viewer and server is fast enough, which it
evidently isn't in this case.

Regards,

Wez @ RealVNC Ltd.


-----Original Message-----
From: John Aldrich [mailto:[EMAIL PROTECTED]
Sent: 04 January 2005 16:18
To: 'James Weatherall'; 'RealVNC List (E-mail)'
Cc: 'VNC List (E-mail)'
Subject: RE: Wierd behavior


Well, I tried it and it does appear to be unbearably slow in
full color
mode.

-----Original Message-----
From: James Weatherall [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 04, 2005 10:33 AM
To: 'John Aldrich'; 'RealVNC List (E-mail)'
Cc: 'VNC List (E-mail)'
Subject: RE: Wierd behavior


John,

The problem is probably that in 8bpp mode, the X server will
be using a
colour palette, rathern than true-colour.  When Mozilla is
selected, the
palette will switch to what Mozilla wants.  When another app
is selected, it
will switch to that app's palette.

I'm surprised that switching your server to 8bpp makes any noticable
performance difference.  Are you sure you didn't mean to set
the VNC Viewer
to request low- or medium- colour, while leaving the server
to use 16bpp
internally?
Regards,

Wez @ RealVNC Ltd.


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf
Of John Aldrich
Sent: 04 January 2005 14:10
To: RealVNC List (E-mail)
Cc: VNC List (E-mail)
Subject: Wierd behavior

I'm using TightVNC on my machine at work and RealVNC on my
linux box at
home. Here's the script I use to launch the VNC Server:
vncserver -depth 8bpp -geometry 1024x768 -nevershared -localhost

For some reason, whenever I switch to an active Mozilla
window, the display,
except for the active Mozilla window, goes green. When I
switch to any other
window, it goes back to normal colors.

My window manager on the linux box (Fedora Core 3) is KDE.
I've got a 
RivaTNT video card there, and I'm assuming that, since I
didn't load the
Riva TNT video drivers, that I'm not using those drivers.

Any ideas why it's behaving this way? BTW, the 8-bit color is
for speed
reasons.

Since this is mixing TightVNC and RealVNC I'm sending to both
lists. BTW,
the behavior is the same whether I'm using TightVNC or
RealVNC for the 
client. Also, since I didn't have this problem under RH9 (previous
incarnation of the box that I'm connecting to) I'm assuming
it's something
to do with the VNC Server. OTOH, I'm using a newer version of
KDE and other
things are new as well (same hardware, just newer versions
of all the 
software) it could be something else as well.
        John


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