[LAU] /dev/rtc permissions on Debian

James Stone jamesmstone at gmail.com
Mon Jan 9 20:37:34 UTC 2012


Did you get any further with this? I had a look at the program, but
it's a bit of a hefty compile what with all the dependencies. Looks
pretty nice though!

I seem to remember rosegarden used to complain about rtc access (at
least it did in the past), but it never seemed to have a noticable
impact on performance (at least to my ears).

Thanks Ralf for the info on max-user-freq. I didn't realise this had
anything to do with rtc, but I did have to change it in the past to
get round some bad midi timing inconsistencies in seq24. Didn't know
the new way to set it.

James

On 1/8/12, rosea.grammostola <rosea.grammostola at gmail.com> wrote:
> On 01/08/2012 08:09 PM, rosea.grammostola wrote:
>> This is the full message:
>> RtcTimer::setTimerFreq(): cannot set tick on /dev/rtc: Permission denied
>> precise timer not available
>>
>> AlsaTimer::initTimer(): best available ALSA timer: system timer
>>
>>
>> On 01/08/2012 07:50 PM, R. Mattes wrote:
>>> cat /proc/sys/dev/hpet/max-user-freq
>>
>> cat /sys/class/rtc/rtc0/max_user_freq
>> 64
>>
>> 2048 is a good value?
>>
>> Thanks
>>
>> Regards,
>> \r
>
> $ cat /proc/sys/dev/hpet/max-user-freq
> 64
>
>


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