Re: CPU overheating then shutting down while encoding video with ffmpeg
On 2015-07-23, Brad Rogers b...@fineby.me.uk wrote: On Thu, 23 Jul 2015 09:27:20 + (UTC) Curt cu...@free.fr wrote: Hello Curt, What nylon carpet? On the floor, of course. I have vacuum cleaner without a carpet (nylon or otherwise); that's why I asked. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/slrnmr1kuh.27c.cu...@einstein.electron.org
Re: CPU overheating then shutting down while encoding video with ffmpeg
On Fri, 24 Jul 2015 00:01:15 +1200 Chris Bannister cbannis...@slingshot.co.nz wrote: Hello Chris, Then you *would* be asking for trouble. IMHO, if anti static measures are not observed, then it doesn't mean the computer will not function but more likely a weakness to the chips occurs and then a failure further on down the track. I'm aware of the problems and pitfalls; I've over thirty years experience in the electronics industry. Of course nobody would be messing round in the computer without an anti static wrist strap on, would they? Of course they do. Most people don't care about such things. Talk to the average Joe about taking ant-static precautions and they look at you as though you're speaking insert suitable foreign language here. That is what I'm referring to, apparently compressed air is recommended instead. The only time I've had any problem may have been as a result of blowing dirt into the PSU whilst compressed air cleaning - the power supply died within minutes of being powered back on after cleaning. It may have been a coincidence of course, but there had not been any indications of power instability before the clean. wonders if Brad's computers last as long as they should. Current machine has lasted well over 5 years and shows no signs of problems. -- Regards _ / ) The blindingly obvious is / _)radnever immediately apparent Stained glass windows keep the cold outside Religion - Public Image Ltd pgpak1qeNed75.pgp Description: OpenPGP digital signature
Re: CPU overheating then shutting down while encoding video with ffmpeg
On Thu, Jul 23, 2015 at 12:07:50PM +, Curt wrote: On 2015-07-23, Chris Bannister cbannis...@slingshot.co.nz wrote: Then you *would* be asking for trouble. IMHO, if anti static measures are not observed, then it doesn't mean the computer will not function but more likely a weakness to the chips occurs and then a failure further on down the track. What's a chip weakness? see: https://en.wikipedia.org/wiki/Breakdown_voltage ... In solid insulating materials, this usually creates a weakened path within the material by creating permanent molecular or physical changes by the sudden current. -- If you're not careful, the newspapers will have you hating the people who are being oppressed, and loving the people who are doing the oppressing. --- Malcolm X -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150723134632.GA26356@tal
Re: CPU overheating then shutting down while encoding video with ffmpeg
Quoting Chris Bannister (cbannis...@slingshot.co.nz): On Thu, Jul 23, 2015 at 08:40:52AM +0100, Brad Rogers wrote: On Thu, 23 Jul 2015 14:05:55 +1200 Chris Bannister cbannis...@slingshot.co.nz wrote: Hello Chris, I'd be a bit hesitant to recommend to use a vacuum cleaner, wouldn't static electricity be a risk? Static builds up when the cleaner moves across the (usually nylon) carpet. When cleaning out a computer casing, you're going to be using a hose with a nozzle on the end so the gliding over carpet doesn't occur. Then you *would* be asking for trouble. IMHO, if anti static measures are not observed, then it doesn't mean the computer will not function but more likely a weakness to the chips occurs and then a failure further on down the track. If you're cleaning (or cooling) a laptop with a vacuum cleaner without opening the case, then static is irrelevant. On a nylon carpet, you are the biggest source of static whenever you walk across and touch the casing. OTOH if you open the case (laptop or otherwise), best keep vacuum hoses away, for the same reason you can't vacuum a tablecloth with a hose attachment. [...] apparently compressed air is recommended instead. Far better, even if it's your own breath (with care). Compressed air can blow the dust out from a distance, whereas a vacuum hose only works close to. I would only vacuum components that have a grille, like the PSU. Of course nobody would be messing round in the computer without an anti static wrist strap on, would they? I've never bothered with these. I just rest my wrist on the chassis when it matters. (But I do wear cotton shirts.) Cheers, David. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150723144530.GA8012@alum
Re: CPU overheating then shutting down while encoding video with ffmpeg
On Thursday 23 July 2015 08:07:50 Curt wrote: On 2015-07-23, Chris Bannister cbannis...@slingshot.co.nz wrote: Then you *would* be asking for trouble. IMHO, if anti static measures are not observed, then it doesn't mean the computer will not function but more likely a weakness to the chips occurs and then a failure further on down the track. What's a chip weakness? A cmos chip, with a damaged silicon-dioxide layer because its been punched thru by the static. Sometimes they will continue to function for a short time. More often you have failures that seem to fix themselves after a full, let the suuplies go to zero volts, powerdown, which will reset and momemtarily turn off the scr so formed between the active part of the transistor and the substrait its made on. Silicon-dioxide is a perfect insulator, but its built so thin it can break down and allow a single electron to pass thru it if over voltaged, often at less than 2 volts above the supply rail, or more than 3/4 volt below the ground rail. The passage of that single electron creates a flaw in that layer, which is not normally more than 1 or 2 atoms thick in modern processes. So it is not a question of will it fail, but when. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/201507231033.20467.ghesk...@wdtv.com
Re: CPU overheating then shutting down while encoding video with ffmpeg
On Thursday 23 July 2015 08:23:20 Brad Rogers wrote: On Fri, 24 Jul 2015 00:01:15 +1200 Chris Bannister cbannis...@slingshot.co.nz wrote: Hello Chris, Then you *would* be asking for trouble. IMHO, if anti static measures are not observed, then it doesn't mean the computer will not function but more likely a weakness to the chips occurs and then a failure further on down the track. I'm aware of the problems and pitfalls; I've over thirty years experience in the electronics industry. Got ya beat Brad. 1949-, 65 years so far, and still counting. As a friend says, beating the odds every day. ;-) Of course nobody would be messing round in the computer without an anti static wrist strap on, would they? I have tended to look at that strap as a way to get executed/electrocuted, but you can bet the whole farm that I have a hand ON the chassis of anything I am also about to be touching chips in. Of course they do. Most people don't care about such things. Talk to the average Joe about taking ant-static precautions and they look at you as though you're speaking insert suitable foreign language here. That is what I'm referring to, apparently compressed air is recommended instead. The only time I've had any problem may have been as a result of blowing dirt into the PSU whilst compressed air cleaning - the power supply died within minutes of being powered back on after cleaning. It may have been a coincidence of course, but there had not been any indications of power instability before the clean. I would suggest that A, not a strong enough blast of air was used, and B, that the fans bearings were damaged by overspeeding from the air stream. The fire siren whine as it spools up to 10x its normal running speed is a cool sound, but to be avoided, I usually put a finger on the hub only let it turn a turn or two. I regularly clean with compressed air, but both of my compressors can make better than 100 psi. And I have never had a PSU go south that I can connect with a good DC. YMMV of course. wonders if Brad's computers last as long as they should. Current machine has lasted well over 5 years and shows no signs of problems. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/201507231048.32952.ghesk...@wdtv.com
Re: CPU overheating then shutting down while encoding video with ffmpeg
On 2015-07-23, Chris Bannister cbannis...@slingshot.co.nz wrote: Then you *would* be asking for trouble. IMHO, if anti static measures are not observed, then it doesn't mean the computer will not function but more likely a weakness to the chips occurs and then a failure further on down the track. What's a chip weakness? -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/slrnmr1m8m.27c.cu...@einstein.electron.org
Re: CPU overheating then shutting down while encoding video with ffmpeg
On Thu, Jul 23, 2015 at 08:40:52AM +0100, Brad Rogers wrote: On Thu, 23 Jul 2015 14:05:55 +1200 Chris Bannister cbannis...@slingshot.co.nz wrote: Hello Chris, I'd be a bit hesitant to recommend to use a vacuum cleaner, wouldn't static electricity be a risk? Static builds up when the cleaner moves across the (usually nylon) carpet. When cleaning out a computer casing, you're going to be using a hose with a nozzle on the end so the gliding over carpet doesn't occur. Then you *would* be asking for trouble. IMHO, if anti static measures are not observed, then it doesn't mean the computer will not function but more likely a weakness to the chips occurs and then a failure further on down the track. Of course nobody would be messing round in the computer without an anti static wrist strap on, would they? I regularly(1) clean our computers with a vacuum cleaner. That is what I'm referring to, apparently compressed air is recommended instead. wonders if Brad's computers last as long as they should. -- If you're not careful, the newspapers will have you hating the people who are being oppressed, and loving the people who are doing the oppressing. --- Malcolm X -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150723120114.GA24700@tal
Re: CPU overheating then shutting down while encoding video with ffmpeg
On Thu, 23 Jul 2015 14:05:55 +1200 Chris Bannister cbannis...@slingshot.co.nz wrote: Hello Chris, I'd be a bit hesitant to recommend to use a vacuum cleaner, wouldn't static electricity be a risk? Static builds up when the cleaner moves across the (usually nylon) carpet. When cleaning out a computer casing, you're going to be using a hose with a nozzle on the end so the gliding over carpet doesn't occur. I regularly(1) clean our computers with a vacuum cleaner. (1) On an annual basis(2). (2) I said regularly, not frequently. :-) -- Regards _ / ) The blindingly obvious is / _)radnever immediately apparent Where will you be when the bodies burn? The Gasman Cometh - Crass pgpeAlCJGhrFp.pgp Description: OpenPGP digital signature
Re: CPU overheating then shutting down while encoding video with ffmpeg
On 2015-07-23, Joe Pfeiffer pfeif...@cs.nmsu.edu wrote: Chris Bannister cbannis...@slingshot.co.nz writes: On Sun, Jul 19, 2015 at 10:17:31AM -1000, Joel Roth wrote: In addition, you could put your laptop up on some blocks, so the airflow is better, or use an external fan or vaccuum cleaner to help. I'd be a bit hesitant to recommend to use a vacuum cleaner, wouldn't static electricity be a risk? I've heard that concern, but never seen any evidence there is any basis for it. Is it theoretically possible (in which case you might want to be theoretically prudent)? Myself, I just let the chips fall where they may. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/slrnmr17hi.27c.cu...@einstein.electron.org
Re: CPU overheating then shutting down while encoding video with ffmpeg
On 2015-07-23, Brad Rogers b...@fineby.me.uk wrote: Hello Chris, I'd be a bit hesitant to recommend to use a vacuum cleaner,=20 wouldn't static electricity be a risk? Static builds up when the cleaner moves across the (usually nylon) carpet. When cleaning out a computer casing, you're going to be using a hose with a nozzle on the end so the gliding over carpet doesn't occur. I regularly(1) clean our computers with a vacuum cleaner. What nylon carpet? -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/slrnmr1cro.27c.cu...@einstein.electron.org
Re: CPU overheating then shutting down while encoding video with ffmpeg
On Thu, 23 Jul 2015 09:27:20 + (UTC) Curt cu...@free.fr wrote: Hello Curt, What nylon carpet? On the floor, of course. -- Regards _ / ) The blindingly obvious is / _)radnever immediately apparent You're a sidewalk cipher speaking prionic jive Give You Nothing - Bad Religion pgp4uv5PTVHuS.pgp Description: OpenPGP digital signature
Re: CPU overheating then shutting down while encoding video with ffmpeg
On Sun, Jul 19, 2015 at 10:17:31AM -1000, Joel Roth wrote: In addition, you could put your laptop up on some blocks, so the airflow is better, or use an external fan or vaccuum cleaner to help. I'd be a bit hesitant to recommend to use a vacuum cleaner, wouldn't static electricity be a risk? -- If you're not careful, the newspapers will have you hating the people who are being oppressed, and loving the people who are doing the oppressing. --- Malcolm X -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150723020555.GA26678@tal
Re: CPU overheating then shutting down while encoding video with ffmpeg
Chris Bannister cbannis...@slingshot.co.nz writes: On Sun, Jul 19, 2015 at 10:17:31AM -1000, Joel Roth wrote: In addition, you could put your laptop up on some blocks, so the airflow is better, or use an external fan or vaccuum cleaner to help. I'd be a bit hesitant to recommend to use a vacuum cleaner, wouldn't static electricity be a risk? I've heard that concern, but never seen any evidence there is any basis for it. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/1boaj3r02k@pfeifferfamily.net
Re: CPU overheating then shutting down while encoding video with ffmpeg
Le primidi 1er thermidor, an CCXXIII, Rodolfo Medina a écrit : In Google I found other similar issues but they weren't useful for me to solve the problem. On my old Hyundai laptop, when running ffmpeg in order to convert a large video format, after a while it says something like the CPU's temperature is reaching a critical value and it's going to shut down, that happens. I tried to catch that message with stdout/err redirection using '' but didn't manage to. Please help who can. FFmpeg does not care about the temperature of your CPU, it just heats it as much as possible. Most likely, you would get the same effect with cat /dev/urandom /dev/null (possibly several running in parallel to make all the cores work), and the same message. If you see the message mixed with FFmpeg's output, that is probably because you are running it on a text console or the message is critical enough to be sent to all pseudo-TTYs. In both cases, the messages are sent directly to the terminal, and therefore not affected by the redirections, but you would find it in /var/log. To find a solution, I would suggest the following steps: 0. If you can, open the laptop and clean the dust in the fans. 1. Find the exact error message and find exactly who sent it: the kernel itself or an auxiliary daemon. 2a. If the message comes from an auxiliary daemon, peruse its documentation to see if you can configure the actions it takes on overheating. 2b. If the message comes from the kernel, you can probably find daemons that monitor the temperature and take configurable actions. If not, you can always hack your own in a few lines of shell. Either way, to let the CPU cool, the best way is to lower the frequency. But if your laptop is very old, it probably can not do that; in that case, killall -STOP ffmpeg would probably work. Regards, -- Nicolas George signature.asc Description: Digital signature
Re: CPU overheating then shutting down while encoding video with ffmpeg
I'll echo the advice on cleaning the fan(s), air vents, and any ducts. I've seen laptops which have been used in enviroments like sitting on a blanket which whose vents have become completely blocked. Also, of course, make sure the fans are actually turning, and haven't failed! I'll also echo the advice to put it on blocks, and also note that you should make sure the vents aren't obstructed by anything. -- Erwin, have you seen the cat? -- Mrs. Shrödinger -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/1bvbdf95on@pfeifferfamily.net
Re: CPU overheating then shutting down while encoding video with ffmpeg
Nicolas George wrote: Le primidi 1er thermidor, an CCXXIII, Rodolfo Medina a écrit : In Google I found other similar issues but they weren't useful for me to solve the problem. On my old Hyundai laptop, when running ffmpeg in order to convert a large video format, after a while it says something like the CPU's temperature is reaching a critical value and it's going to shut down, that happens. I tried to catch that message with stdout/err redirection using '' but didn't manage to. Please help who can. FFmpeg does not care about the temperature of your CPU, it just heats it as much as possible. Most likely, you would get the same effect with cat /dev/urandom /dev/null (possibly several running in parallel to make all the cores work), and the same message. If you see the message mixed with FFmpeg's output, that is probably because you are running it on a text console or the message is critical enough to be sent to all pseudo-TTYs. In both cases, the messages are sent directly to the terminal, and therefore not affected by the redirections, but you would find it in /var/log. To find a solution, I would suggest the following steps: 0. If you can, open the laptop and clean the dust in the fans. 1. Find the exact error message and find exactly who sent it: the kernel itself or an auxiliary daemon. 2a. If the message comes from an auxiliary daemon, peruse its documentation to see if you can configure the actions it takes on overheating. 2b. If the message comes from the kernel, you can probably find daemons that monitor the temperature and take configurable actions. If not, you can always hack your own in a few lines of shell. Either way, to let the CPU cool, the best way is to lower the frequency. But if your laptop is very old, it probably can not do that; in that case, killall -STOP ffmpeg would probably work. In addition, you could put your laptop up on some blocks, so the airflow is better, or use an external fan or vaccuum cleaner to help. -- Joel Roth -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150719201731.GA18316@sprite
