[vdr] Re: Starting and Recording Problems

[Tim Coggins <tc@sonicated.com>]

Hi Robert,

Thanks for your advice! The I compiled in support to set DMA on
automatically in the kernel but I didn't enable support for my chipset.
I have recompiled my kernel and disk reads have gone from ~5MB/s to >
30MB/s. I have no idea why I didn't think of this before, no wonder
copying from drive to drive took so long.

I've experienced quite a few crashes so hopefully this may help stop
them.

On a separate note, is it possible to scroll through channel information
boxes whilst not changing the current channel?

Thanks again!


On Thu, 2003-11-06 at 10:14, Robert wrote:
> I'm sorry if some people get this repley a second time but some people 
> sent me a mail
> that they couldn't open the mail. I think it's this crappy Notes web 
> client :-( I've changed to
> Mozilla Mail. Hope this works now... Sorry again. And here now the 
> original replay:
> 
> Hi Tim!
> 
> For your first problem I may have a solution. I've had a similar 
> problem. First you should test
> your drive speed eg.:
> hdparm -Tt /dev/hda
> If you your /video mountpoint is on a different drive try .../hdb or any 
> other drive. hdparm prints
> out two values. The second one is the one of interest. For the first 
> time I ran this utility on my
> hdd I've got an unswallowable value of 5-6 MByte/sec. In this case try a 
> different UDMA hdd mode.
> I've reduced it vom UDMA 5 to UDMA 3. Now it runs fine with around 30 
> MByte/sec. You can
> use hdparm to do this. I haven't the exaclty syntax here at the moment. 
> Please look in the
> manpage of hdparm or have a look at this page: 
> http://linux.oreillynet.com/pub/a/linux/2000/06/29/hdparm.html
> 
> - Robert



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