Overheating..


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  1. DFRESH

    DFRESH Well-Known Member This Topic's Starter

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    I wake up at 3am to find my phone overheating!

    it was at 130 degrees! What was the problem? well...I forgot to close an application!

    So if you have the gumbo kernel ...make sure you don't run any applications and leave them open....

    So if you ever have the same problem, turn off your phone and place it by an open window and let it cool off for a good 5-10 mins..
     

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  2. momoceio

    momoceio Well-Known Member

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    Still seems weird...the kernel doesn't OC the processor anything. It doesn't run any faster than stock...so I'm not sure how the kernel would cause it. What app was it?
     
  3. DFRESH

    DFRESH Well-Known Member This Topic's Starter

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    Google Maps ......

    but in the past before the kernel, i had applications running in the background and never had an overheating problem.

    The only thing I could think of was the kernel ....I could be wrong..

    but my phone was overheating....got scared for a sec, thought it was gonna fry all the way..

    I noticed the led light was flashing, green/orange ....touched it, the thing was hot..

    opened it and the battery widget by curve fish said "overheating" ..

    but i really do believe the kernel and certain apps can lead to overheating..
     
  4. tatonka_Hero

    tatonka_Hero Well-Known Member

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    google maps made my phone pretty warm the other day. Part of that might have been that I had the screen not to shut off, GPS on, and charging. Also probably didn't help that it was in front of the vent in the truck, but that vent wasn't on :p
     
  5. DFRESH

    DFRESH Well-Known Member This Topic's Starter

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    I had gps off...but forgot the close the application..so the phone was charging....I don't know why I woke up at 3am...but good thing I did...

    I noted to myself this morning "don't play with your phone before going to bed" lol
     
  6. stinky

    stinky Well-Known Member

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    after the kernel I notice watching YouTube longer than a couple minutes, and the phone gets really hot.
     
  7. durandetto

    durandetto Well-Known Member

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    I thought the point of the kernal was to kill apps that were running in the backround? Does your phone not sleep when charging? If you have setCPU to ondemand it should automatically drop down to the min. when your screen is off.
     
  8. slade

    slade Well-Known Member

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    Yeah, do you have setCPU running in ondemand?
     
  9. DFRESH

    DFRESH Well-Known Member This Topic's Starter

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    I didn't know that, looks like I'm going to switch to ondemand ...

    It's always on performance...but I'm going to follow what durandetto just said..
     
  10. slade

    slade Well-Known Member

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    To provide a bit of explanation, as I understand it, Gumbo is supposed to be fast because he disabled HTC's own (closed source) cpu throttling, aside from the memory management stuff.

    >>>Kernel built with debugging and HTC performance lock stripped for full wake ramp up support<<<

    He did that with the assumption that users would use setcpu's ondemand dynamic throttling to provide battery protection or the alternative...

    >>>It's a kernel driven CPU governor. You can install setcpu to enable it, or
    echo "powersave" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
    from a terminal app on the phone.
    <<<

    It may also be important to know that he suggests not using setcpu's OnBoot function, and run setcpu yourself after booting, as needed...

    Here was his recommendation:
    >>>
    Example use:
    Get to work, drop governor into powersave and put the phone in your pocket.
    At lunch, you want to reply to messages, surf, whatever drop it back to ondemand.
    If you want to play robodefense at lunch, drop it to performance.
    When lunch is over, back to powersave and in your pocket.

    <<<

    I suspect you could get 2-3 days of sporatic use with this thing if you kicked it into powersave most of the time you aren't using it (this is what i would do if I forgot my charger in a hotel in the middle of a 4 day trip)

    Instead of copying and pasting all of that, I should just have said: read the first post on XDA carefully, then read pages 8-12 starting here.



    Actually, that warning should probably be in the first post of that whole fresh+gumbo+setcpu thread before people burn their phones up.
     
  11. pwabbit

    pwabbit Well-Known Member

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    Before I loaded the new kernel, my phone did get very hot. The circumstances were: loss of signal and background data still on. As soon as I turned the background data off, the phone cooled down. I have only had one occurrence of running warm with the new kernel. The phone wouldn't sleep. it was awake 100% of the time. After a restart, the phone has been outstanding. I couldn't be more pleased.
     
  12. stinky

    stinky Well-Known Member

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    So you have to manually select different modes in setCPU? That makes a lot more sense, but confusing as well. I understood it as those modes were automatically selected by setCPU depending on what you were doing, I dont remember which mode I changed last but that probably explains why my battery was dead in about half a day.

    I since deleted setCPU, and now my battery is better, but stil not a full day like I used to get. Plus the overheating. I will try reinstalling setCPU and messing with the different modes. I think ondemand might be the best overal choice for me since I use my phone throughout the day and never really have extended periods of time when I dont check it.

    Thanks for the tip, rep point given.
     
  13. durandetto

    durandetto Well-Known Member

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    From what I have read ondemand sets the cpu to your min. setting when the screen is off in stand by and to max when you are using it.
     
  14. redandblack1287

    redandblack1287 Well-Known Member

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    I had the same problem with setCPU, check out my last post in the setCPU vs. overclockwidget thread. Overclockwidget is waaaaay better on my battery.
     
  15. stinky

    stinky Well-Known Member

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    Thats what I thought I read too, but I think what my problem was is that I thought the drop down menu settings all kicked in automatically depending on what you were doing. So I dont know which drop down item I had selected last.

    I just failed to fully understand what it did and didnt do. Now I reinstalled it and changed it to ondemand at 480/160. I will see how that affects performance vs battery. I dont need super performance, but at least a little something to make all this tweaking worth it.

    I will check that out. Thanks for the tip.
     
  16. Mamahnita

    Mamahnita Well-Known Member

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    My hero overheated once and it was due to me using it to watch videos and play games while I had it hooked up to the wall charger so I unplugged it and put it in the window for two minutes and it cooled down just fine only after 1/2 minute because it was -2 below zero outside.
     
  17. stinky

    stinky Well-Known Member

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    So today my battery lasted a lot longer with setCPU set to ondemand at 528/245. But it is still getting very hot when watching movies.

    Is there a difference between powersave, performance and on demand modes if the CPU speed is set exactly the same on all of them?
     
  18. khaag27

    khaag27 Well-Known Member

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    try sand. I cant believe you didn't think of this already!?
     
  19. DFRESH

    DFRESH Well-Known Member This Topic's Starter

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    I did! I used some cold sand! :D
     
  20. Syphon

    Syphon Well-Known Member

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    I notice mine gets pretty warm when I use the WIFI Tethering. I have it set for ondemand at 528/245.
     
  21. pwabbit

    pwabbit Well-Known Member

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    Mine got real hot on wifi tethering. Haven't tried it with the Gumbo kernel yet though.
     
  22. bee976

    bee976 Member

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    With WIFI tethering my Hero usually tops out at about 108 degrees after about 3 hours of tethering with it plugged to the wall, it usually only lasts about 2-3 hours if it is not plugged in. This is with Fresh 1.1, and Gumbo installed. I just installed setCPU, set to Ondemand 528/245 and have a full charge. I will post results in a couple of hours after some tethering.


    EDIT: After 2 hours of steady tethering and phone calls while not plugged in i have been at about 95 degrees, and still at 50% battery life...so I would have to say setCPU defintley helps. Tomorrow I will try the same but while plugged into the wall.
     
  23. DFRESH

    DFRESH Well-Known Member This Topic's Starter

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    your phone about to shit bricks...

    mine got real hot because it was charging and an app running in the background...that's a big no no!
     
  24. bee976

    bee976 Member

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    rly, i have been doing it almost everyday for over a month...I haven't seen any problems, besides it gets to about 107 degrees, but i take it off for awhile to cool down.
     
  25. DFRESH

    DFRESH Well-Known Member This Topic's Starter

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    Are you running the Gumbo Kernel + Ram hack??
     

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