Messages in this thread | | | Subject | Re: various laptop nagles - any suggestions? (note: 2.6.19-rc2-mm1 but applies to multiple kernels) | From | Thomas Gleixner <> | Date | Fri, 20 Oct 2006 20:13:54 +0200 |
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On Fri, 2006-10-20 at 11:07 -0700, Andrew Morton wrote: > > > So you're saying that CONFIG_NO_HZ breaks the touchpad? > > > > yes. At least for Acer Travelmate 8000 and HP nx6310 and HP nx7400. > > Other than the touchpad - there is not a lot of common hardware between > > these units. The readout becomes highly unreliable. (in X it starts > > jumping around - it SORT OF resembles the output) > > > > My suspicion is a timing problem in the synaptic USB driver > > OK, that's going to be hard to fix and it'd be awkward (and unpopular) to > make inclusion of the dynamic-ticks feature dependent on fixing this. > (Then again, it'd get Ingo into device drivers ;))
Maybe Ingo is the lesser evil than me when it comes down to device drivers :)
> However I would suggest that NO_HZ (at least) be dependent upon > CONFIG_EXPERIMENTAL, no?
Fair enough.
> Also, NO_HZ breaks my laptop (and presumably quite a few others) quite > horridly, which means nobody can ship the feature. Some runtime > turn-it-off work needs to be done there.
We can make a commandline switch as for highres. Is that sufficient ?
tglx
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