[mythtv-users] Advantages of 2.6 kernel
jcw at wilsonet.com
Wed Jun 9 18:02:42 EDT 2004
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On Wednesday 09 June 2004 11:57, Preston Crow wrote:
> On Wed, 2004-06-09 at 14:28, Mitko Haralanov wrote:
> > Now with FC2 out I am wondering whether I should upgrade and switch to
> > 2.6 kernel. However, before I can make an educated decision I would like
> > to know as much as possible since changing would mean starting from
> > scratch.
> > First, I would like to find out that are the advantages of running a
> > 2.6 kernel in MythTV specifically(since the box runs only that)? If I
> > decide to upgrade, what problems would I be likely to hit (I am using
> > GeForce4 MX, 3 PVR-250s, CMedia sound chip)?
> The drivers are the issue.
> For the GeForce4, supposedly nVidia will be releasing new drivers real
> soon now that solve the overscan problem and work with 2.6. You can run
> a patched 4363 driver if you compile the kernel with 8k stacks (not the
> FC2 default if I heard correctly).
Yes, the FC2 kernel uses 4kstacks, as does kernel.org 2.6.6 by default, and
this will become a non-changeable option in the future. nVidia is promising
new drivers "soon" that supposedly will also re-introduce the ability to
overscan (gone since 4363).
> For the PVR-250s, you'll need either patched 0.1.9 drivers or
> 0.1.10-pre2 with patches (the -pre3 should be out in the next few
> weeks). Unfortunately, I haven't been able to get video with the latest
> versions of the driver, but that may be something I'm doing wrong.
The ivtv drivers aren't 100% 4kstacks clean either. Not sure where progress is
at on that, or if the pre3 release is supposed to fully address it.
> I'm not sure about the CMedia sound. In most cases sound works fine
> with 2.6, but I'm not familiar with that chip.
Yeah, that shouldn't be a problem.
> You may also have Lirc issues. I haven't tackled that problem yet for
> myself, but my plan is to use the IR receiver with my PVR-250.
It can be made to work, though mce_usb support gets broken. You have to use
> So in summary, if your system is all working now, you might want to wait
> a month for new driver releases before switching.
I concur. I will not update my doc to FC2 until after completely
4kstacks-clean nvidia and ivtv are out and stable. If it ain't broke, don't
break it more.
Jarod C. Wilson, RHCE
jcw at wilsonet.com
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