The same problem exists for windows also In my previous office, there was a computer which goes to sleep mode and could'nt recover from that. By experience we learned that there is something wrong in hardware ( and not that of OS) and changed the motherboard by the dealer
On Fri, Apr 3, 2009 at 11:19 AM, Visakh <gokulda...@gmail.com> wrote: > > Hi, > > @BINNY > The more you describe the problem, the more it appears to me like a > power supply issue rather than a power management issue. As far as I > know, all computer CRT monitors are designed to switch off their CRT > when the video signal form the system disappears. Other than that, > their CRT power is in no way controlled by the power management system > of the computer. The monitor supply is directly connected to AC mains- > even when connected to the rear of the SMPS. Besides, the cable that > connects the monitor to system (VGA) is analog. It carries not much > digital info. You can verify this here: > http://pinouts.ru/Video/VGA15.shtml > . All these indicate a serious issue somewhere in your power supply > and the power management system is innocent. For now, however, I would > recommend avoiding sleep mode till you get your power supply issue > solved. And as for the frequent monitor on/off - its always slightly > strenuous - but the monitor manufacturers take care of that. It won't > cause any realistic damage. > > And for the stabilizer - most manual stabilizer have a dial that is > used to select a voltage range (ie, transformer step-up ratio). They > still have an automatic negative feedback voltage controller element > after that. I am not sure how this would affect a UPS connected to it- > but, it wont be much different from when an automatic stabilizer is > connected. So I still wouldn't recommend its use. Now the UPS- it is > designed to isolate the mains and connect the inverted battery source > when the voltage drops too low. This is not unusual. But if you are > facing frequent mains drop, better get your mains and UPS checked. > > @ Yadu > I believed you the first time you wrote that there was an 'insane' > scheme. You didn't have to put the link up here to convince me :) . > But still, thanks very much for the informative link. If you look > carefully, you will find that the acpi kernel module was patched to > make it insane. So it is very unlikely that any distro will use this > 'insane' patch. But that link is important for me since it has some > data for me to ponder over. > > @ nishandh > Until recently, Ubuntu and may be other distros had some problems > with power management- may be due to wrong sequence of power modes. > But there was nothing that would blow up motherboards or crash and > burn HDDs. Otherwise, many other competitors, including the 'all > powerful monopolistic corporation' would have cashed on it. > > Regards, > Gokul Das > > > --~--~---------~--~----~------------~-------~--~----~ "Freedom is the only law". "Freedom Unplugged" http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups "ilug-tvm" group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en -~----------~----~----~----~------~----~------~--~---
