[mythtv] OpenGL vsync broken on Intel i945
Tino Keitel
tino.keitel at gmx.de
Fri Nov 23 17:39:46 UTC 2007
On Fri, Nov 23, 2007 at 11:14:50 -0500, Daniel Kristjansson wrote:
[...]
> It should according to 2.6.22.9 Documentation/rtc.txt...
It is documented in the section "Old PC/AT-Compatible driver:
/dev/rtc". This is CONFIG_RTC. However, I use CONFIG_RTC_DRV_CMOS, and
only one of them can be used. The new driver has a sysfs interface, but
something like max-user-freq seems to be missing.
CONFIG_RTC_DRV_CMOS has the advantage that the wakeup time can be
written in seconds since epoch, as it is proviced my MythTV. No messing
around with date/time conversions between local time and UTC time are
needed.
> Maybe your distro changed this somehow? The Linux documentation
This is a vanilla kernel (2.6.23.1).
> could be wrong of course. But it appears to still work with the
> latest Ubuntu kernel.
It just depends on the RTC driver that is loaded at runtime (rtc.ko or
rtc-cmos.ko, if the latter is provided by the distro).
>
> I googled fedora core 8, since I've noticed some Fedora users
> complaining. It looks like /proc/sys/dev/hpet/max-user-freq
> might work there instead.
I already set this, but it doesn't seem to be sufficient for
mythfrontend. It still falls back to USleep.
> But this is quickly becoming a discussion for mythtv-users as
> MythTV can't actually set this, it must be set by the distro,
> or the distro packagers of MythTV.
When /proc/sys/dev/rtc/max-user-freq is mentioned somewhere in the
MythTV documentation, then it should be mentioned that this doesn't
work with the new RTC driver anymore.
Regards,
Tino
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