Messages in this thread | | | Date | Thu, 15 Dec 2005 10:37:44 -0800 | From | Greg KH <> | Subject | Re: ordering of suspend/resume for devices. any clues, anyone? |
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On Thu, Dec 15, 2005 at 02:31:24PM +0000, Luke Kenneth Casson Leighton wrote: > [hi, please kindly cc me direct as i am deliberately subscribed with > settings to not receive posts from this list, but if that is inconvenient > for you to cc me, don't worry i can always look up the archives > to keep track of replies, thank you.] > > http://handhelds.org/moin/moin.cgi/BlueAngel > > works. > > am seeking some advice regarding power management - specifically > the ordering of devices "resume" functions being called. > > we have an LCD, and an ATI chip. switching on the LCD powers up > the ATI chip. > > unfortunately, resume calls the ATI device initialisation > _before_ the LCD resume initialisation. the ATI chip's > initialisation fails - naturally - because it's not even > powered up. > > of course - this can't be taken care of in userspace as an apm > event because the framebuffer device cannot be a module [without > terminating all running x-applications]. > > so. > > possible solutions, as i see them:
<snip>
Known issue, I'd take this to the linux-pm mailing list instead, as the people there are working on stuff for this.
thanks,
greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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