Re: [Directvnc-user] too good to be true?

[Till Adam]

# Quoting Rob McGee (address@hidden):

> DVNC's configure said I needed pkg-config, so I got 0.14.0. This wasn't
> mentioned in either README.

Hm, pkg-config is a fairly standard build tool by now, so both the DFB
folks and I expect a user compiling from source to have it. Or be able
to get it.

> I compiled that and noted with alarm that it includes glib-1.2.8. I
> have 1.2.10 already installed! So rather than let in install its glib,
> I copied the pkg-config binary (stripped) to the usual /usr/local/bin.
> 
> DVNC was happy enough. As best I could tell from "man pkg-config", it
> isn't something needed at runtime, right?

pkg-config is only needed at compile time.

> So on to runtime ... drooling in anticipation ... wait, wipe off the
> keyboard ... directvnc hal:1 ... asked for password ... authenticated
> ...
> 
> That was it. That was all she wrote. If I wasn't such a GNU/Linux whiz
> I would have thought she was doing a Windows-style crash. No, it wasn't
> the system, it was only the framebuffer display. Remotely I could paint
> things on the framebuffer (cat file.png > /dev/fb0), but I couldn't get
> a working display back.
> 
> Goodbye uptime, hello 3-finger-salute. :)

Enabling sysrq helps a lot when working with dfb and related
applications. 

> I tried again after rebooting, thinking that perhaps I needed to adjust
> the VNC server's parameters, specifically the color depth. I set it to
> match the framebuffer:

dvnc currently only works with 16 bit color depth.

> address@hidden:~# fbset -i
> 
> mode "1024x768-70"
>     # D: 74.996 MHz, H: 56.473 kHz, V: 70.066 Hz
>     geometry 1024 768 1024 768 16
>     timings 13334 144 24 29 3 136 6
>     accel true
>     rgba 5/11,6/5,5/0,0/0
> endmode
> 
> Frame buffer device information:
>     Name        : MATROX
>     Address     : 0xff000000
>     Size        : 4194304
>     Type        : PACKED PIXELS
>     Visual      : TRUECOLOR
>     XPanStep    : 8
>     YPanStep    : 1
>     YWrapStep   : 0
>     LineLength  : 2048
>     MMIO Address: 0xffefc000
>     MMIO Size   : 16384
>     Accelerator : Matrox MGA2064W (Millennium)

This looks fine.

[snip]
> I'd like to get this working, although my enthusiasm was dampened a bit
> by reading the list archive ... my dream of having a different VNC on
> every tty isn't going to happen, at least not yet.

No, not yet.

> Any ideas on what I should try next? Maybe go back to an older version
> of DFB? Should I be on the DFB list also or instead?

Do other dfb applications work? How about the examples that come with
dfb? If so, and the problem is inside directvnc, can you please try cvs,
so we are working with the same code base?

> Till, let me know if more details are needed. Thanks for working on
> this; it sure is a great idea if it works.

Oh, it works nicely here, and I'm sure we can make it work for you as
well.

Thanks for the feedback,

Till