Hi, On 10.02.2016 10:11, Dwijesh Gajadur wrote: > I used PowerTop on Ubuntu 15.10. I found that Ubuntu 15.10 uses PowerTop 2.7. > However Debian Stretch uses PowerTop 2.8. And it seems that the bug is in the > 2.8 version. > > I tried to downgrade PowerTop and installed the 2.7 version on Debian. But > now I am getting another error line: > > *** Error in `powertop': double free or corruption (!prev): > 0x0000000002418ef0 *** > Aborted What bug is that? Also, 3 vs 5 vs 6-7 h is the actual runtime you get or what powertop (or other programs?) estimate from a full battery?
should your model not have the amd m335 dGPU ignore the rant parts that follow, but the dell 5559 that I found includes it. - have you checked wether the changes powertop suggests are actually applied? I have seen that debian does not enable all power saving features that are absolutely worth it on laptops, less so on desktops and servers. - do you know where the additional consumption comes from? - candidates: GPU, CPU deep sleep states, device sleep - can you disable the dGPU in firmware? it's not actually faster than the iGPU, so the most it can do is waste energy. Dell and AMD (and Nvidia for their corresponding chips) should be slapped for wasting resources on it.[1] > On Wed, Feb 10, 2016 at 12:37 PM, Aleksandar Atanasov > <redbaronqu...@gmail.com <mailto:redbaronqu...@gmail.com>> wrote: > On 10 February 2016 at 08:18, Jos Collin <joscol...@gmail.com > <mailto:joscol...@gmail.com>> wrote: semi-OT: did these mails go to the list or were they PMs? because I did not get them, nothing in my mailserver's logs too. > I'm saying that the battery should be used efficiently. > > But What I meant was it is not worth bothering too much about battery > life, as it is going to die in the near future anyway. yeah right, because wasting energy is OK and having a laptop actually running away from the electricity grid is overated anyway. [1] http://www.notebookcheck.net/Mobile-Graphics-Cards-Benchmark-List.844.0.html?type=&sort=&deskornote=0&or=1&search=m335+520&month=&benchmark_values=&gpubenchmarks=0&professional=0&archive=1&dx=0&multiplegpus=0&showClassDescription=1&condensed=0&showCount=0&showBars=1&showPercent=0&3dmark13_ice_gpu=1&3dmark13_cloud_gpu=1&3dmark11_gpu=1&vantage3dmarkgpu=1&3dmark06=1&gpu_fullname=1&codename=0&architecture=1&pixelshaders=1&vertexshaders=1&corespeed=1&shaderspeed=0&boostspeed=1&memoryspeed=1&memorybus=1&memorytype=1&directx=1&opengl=0&technology=0&daysold=0
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