[Libdlo] Getting things up on CentOS

[Dan]

I have also had problems with CentOS. It may be due to 64 bit issues.

If you wish to be proactive I suggest you create early returns in the 
initialisation sequence and find out which bit is crashing! Last time I 
did this I found a memory allocation for the framebuffer was failing but 
not being trrapped. I think that's fixed now, although you may want to 
check that the error return from framebuffer_alloc is NULL, else that 
may still be the poblem.

I hope that is of some use...

Dan.

On 18/01/2010 06:07, Dave Henning wrote:
> I am using the IOGear DisplayLink USB to VGA Adapter.  I got it more or
> less working on Ubuntu 9.04, but my customer requires getting it working
> on CentOS 5.3 or at least starting with CentOS 5.3 and upgrading only
> the necessary drivers needed to get the DisplayLink working.
>
> I was able to see graphics on Ubuntu 9.04 using the instructions from
> the Mulchman blog (which was referenced on this mailing list.)
>
> I moved over to CentOS 5.4 and tried to translate the recipe for Ubuntu
> 9.04 found on the Mulchman blog.
>
> http://mulchman.org/blog/?tag=displaylink
>
> Once I did this, plugging in the DisplayLink adapter caused the machine
> to completely freeze requiring a power cycle.  I then tried it on a
> CentOS 5.3 installation and that did not work either.
>
> I tried to log each step below.  I am very new to RedHat/CentOS so I am
> hoping there is something obvious missing here.
>
> Thanks,
> Dave ...
>
> /* install kernel headers */
> sudo yum -y install kernel-devel
>
> /* install all xorg stuff */
> sudo yum -y install xorg-x11-server-Xorg
>
> /* install Development Tools */
> sudo yum -y groupinstall "Development Tools"
>
> /* install usb development headers */
> sudo yum install -y libusb-devel
>
> /* install Xorg SDK stuff */
> sudo yum install -y xorg-x11-server-sdk
>
> /* Follow Mulchman Blog */
> cd ~/Desktop
> wget \
> http://projects.unbit.it/downloads/udlfb-0.2.3_and_xf86-video-displaylink-0.3.tar.gz
> tar xzvf udlfb-0.2.3_and_xf86-video-displaylink-0.3.tar.gz
> cd udlfb
>
> /* NOTE: Needed to modify Makefile.  'make' should be called from
>   * /usr/src/kernels/$(KERNEL_VER)
>   * where KERNEL_VER probably equals '2.6.18-164.10.1.el5-i686' or
> similar
>   * See ~/Desktop/udlfb/Makefile on machine in lab
>   */
>
> /* Note path change to depmod */
> make&&  sudo make install&&  sudo /sbin/depmod -a
> cd ../xf86-video-displaylink
> ./configure&&  make&&  sudo make install
> gksudo gedit /etc/X11/xorg.conf
>
>
>
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