[Libdlo] Successful on CentOS 5.4, now I want CentOS 5.3
dave at evlax.com
Fri Feb 5 23:48:39 PST 2010
On Fri, 2010-02-05 at 17:20 -0800, Bernie Thompson wrote:
> Hi Dave,
> It's hard to guess how things will work on older kernels without
> testing, but to help make things easier for people building udlfb as
> an module on older kernels, this checkin adds some ifdefs to allow the
> driver to survive even without defio and fb_sys ops being present.
> The cost is - without defio, standard fbdev apps (that use mmap
> without damage) won't work. And without FB_SYS, fbcon won't work.
> They'll both just silently not update the screen. The custom
> displaylink X server will work in any/either case.
> If anyone has any bug reports on the latest udlfb code, they'd be
> I know these #ifdefs may get flagged when the kernel patches come --
> because from the perspective of someone on the latest kernel, building
> out of the kernel tree, you never need ifdefs like this. But it's
> proven common to have people wanting/needing to build udlfb as a
> module, without rebuilding their kernel. So this helps that.
> It would be great to get some experience reports, or people digging
> back versions, to figure out what kernel we can go back to, and still
> build. Feel free to post those here.
> And once you have the kernel module working, my impression is X is
> easier to get running with older distros, than it is with recent ones.
> So Centos 5.3 might be easier than most.
> Best wishes,
I had some more success. I took a raw CentOS 5.3 install and then
upgraded the Xorg pacakges by running the following command:
$sudo yum -y groupinstall "X Window System"
That installed the 5.4 version of all of these packages and I was able
to get things working following this recipe:
I am guessing this is a major "cheat", but I think it is going to be
acceptable for my needs. The kernel version is still from CentOS 5.3
Thanks so much for your ideas.
> Plugable Technologies
> On Wed, Jan 27, 2010 at 11:18 AM, Dave Henning <dave at evlax.com> wrote:
> Now, I need to get this running on an existing CentOS 5.3
> system. Does
> anyone have any thoughts about how difficult this will be?
> What are the
> packages need to be updated at a minimum?
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