* Matthew Garrett <mjg59@xxxxxxxxxxxxx> wrote: > The s2ram command has a built-in whitelist used to set up video > rePOSTing. If you want to test, reboot and do > > echo mem >/sys/power/state > > without i915 being loaded. If you get a console back on resume then > the platform is reinitialising video for you, but otherwise it's your > userspace. btw., why isnt there an in-kernel whitelist, with perhaps a dynamic, convenient /debug/s2r/whitelist append-API for distros (and testers) to add more entries to the whitelist/blacklist? (for cases where the kernel whitelist has not caught up yet) Which would eventually converge to Utopia: s2ram that just works out of box. This would be a lot more flexible (people could even temporarily extend the whitelist via rc.local if need to be, etc.), a lot more robust and a lot more user friendly than the "dont use /sys/power/state, rely on some user-space tool to work around bugs" approach. Really, i couldnt make the s2ram API/quirks situation much worse even if i deliberately tried to design the whole code to be as hard to use and as confusing as possible :-/ These types of half-kernel half-userspace solutions usually result in constant finger-pointing and constant lag, and they result in about the crappiest user experience that is possible to achieve physically. ( Sorry about the strong words, while there's lots of good and positive development lately i havent seen much change in this particular area of s2ram in the past 1-2 years, and the whole chain is only as strong as the weakest link - so someone finally has to deliver this message to the cozy fire of s2r hackers while our testers and users are standing out in the cold rain ... ) Ingo - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
