Comment 291 for bug 370173
Revision history for this message
| Kris (dakaujunk) wrote Re: Ubuntu 9.04 laptop overheat and shutdown | #291 |
© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
0f7b58d
(Get the code!)
My 2 cents....
I had run certain tests with 3 laptops:
1) Thinkpad T61 with NVidia Quadro 140, Intel Centrino Pro 2.2 GHz on T7500, 3 GB 1067 MHz memory
2) Thinkpad T42 with ATI Radeon Mobility 7500, Intel Centrino Mobile 1.6 GHz, 1.25 GB 333 MHz memory
3) Dell Latitude E6400 with NVidia Quadro 160, Intel Core 2 Duo 2.53 GHz, 4 GB 1067 MHz memory
My observations:
T61 on Mint 7 Live or installed (effectively Ubuntu 9.04) running 2.6.28-11 with NVidia version 173 driver (or 2.6.28-15 running NVidia version 180 driver) - core temp was at the minimum 57C, GPU at 61C, Fan at 3126 RPM and leapt upto 90C, GPU at 85C, Fan at 4259 RPM by launching only Firefox + YouTube (flash) video running fullscreen. Also noticed, that even when idling, the Xorg process consumes a minimum of 27% CPU. No shutdowns, but super-hot (temp-wise) for a laptop.
T61 on Mandriva 2009.1 Live running 2.6.29 with NVidia drivers (dont know the version) - core temp was at a minimum of 36C, GPU at 45C, Fan at 3321 RPM and rises upto 62C, GPU at 58C, Fan at 3740 RPM only by launching Firefox + YouTube (flash) video fullscreen + OpenOffice Impress + super_pi running 7th iteration. When idling, X process consumes only a maximum of 8% CPU. No shutdowns and no super-hot temp.
T61 with M$-Win - core temp is at a min of 38C and rises upto 59C by launching all the above said apps. Not a fair comparison, but this at-least proves the issue is not related to the hardware in use.
T42 on Mint 7 Live or installed (effectively Ubuntu 9.04) running 2.6.28-11 - core temp was at minimum of 39C, Fan at 3468 RPM and rises to 52C, Fan at 3698 RPM under heavy usage. T42 could not be cranked to heavy usage, due to hardware being very old. Xorg process consumes a maximum of 14% CPU. But still the point is overheating does not occur in T42.
E6400 on Mint 7 (effectively Ubuntu 9.04) running 2.6.28-11 - core temp was at minimum of 37C, GPU at 44C and rises to 65C, GPU at 59C under heavy usage. No shutdowns and no super-hot temp. Of course, sensors on Dell shows only 1 CPU temp and the GPU temp (or probably Dell has only 1 sensor). Again, no overheating at all.
Posted just in case, the above info might help anyone.