Re: Debian Wheezy on Dell 7535

[Dwijesh Gajadur]

Hello friends...I want to thank all of you for your help. All my problems
have been solved and everything is working perfectly now.
Yes Michael you were right.The Shutdown issue was due to my UEFI firmware.
I just updated it today and now everything is fine.
Thanks a lot [?]
Now I can enjoy Debian peacefully [?]

With Regards,

Dwijesh

On Thu, Apr 2, 2015 at 8:31 AM,  wrote:

> As I know, halt in jessie never do power off. Implementation of halt from
> systemd do not power off at all...
>
> вт марта 31 21:49:23 2015 GMT+0300 получено от Gajadur Dwijesh:
> > Hi Fred, thank you for replying
> >
> > The command 'shutdown -hP now' still does not work when run as root. I
> > think i will have to wait for Jessie Stable to be released and then try
> it.
> > Maybe there is a bug in the Kernel 3.16. [?]
> >
> > Anyone here using the kernel 3.16 ?
> >
> > On Tue, Mar 31, 2015 at 5:26 PM, Fred  wrote:
> >
> > > Hi Gajadur,
> > >
> > > The shutdown command someone previously suggested should have been (as
> > > root):
> > > shutdown -hP now
> > > The P option is for power off.  This command works on my desktop.
> > >
> > > Best regards,
> > > Fred
> > >
> > >
> > > On 03/31/2015 06:28 AM, Gajadur Dwijesh wrote:
> > >
> > >> Hi Michael,
> > >>
> > >> I don't think it is a hardware issue because when I boot to Windows
> and
> > >> shutdown from there, the system shutdowns properly.
> > >> The problem occurs only on Debian.
> > >>
> > >> In fact I had the 3.2 kernel before and I had no shutdown issue ,
> however
> > >> I had to install the new kernel 3.16 because I was having other
> > >> compatibility issues with the 3.2 kernel.
> > >>
> > >> It is after that I have installed the new kernel that the problem
> occured.
> > >>
> > >>
> > >>
> > >>
> > >> On Tue, Mar 31, 2015 at 1:57 PM, Michael  > >> codejod...@gmx.ch>> wrote:
> > >>
> > >> Dwijesh,
> > >>
> > >> What happens when you shut down from a boot DVD (life CD) Linux ?
> > >> Like GRML oder some installer disk.
> > >>
> > >> www.grml.org 
> > >>
> > >> If that works then try to install the same kernel.
> > >>
> > >> Anyway, does it work from Windows (does the laptop still have that
> > >> ?), and can you do the Dell hardware check ?
> > >>
> > >> Should be onboard, otherwise try support, like
> > >> http://www.dell.com/support/home/us/en/19/product-support/
> > >> product/inspiron-15-7537/diagnose
> > >>
> > >> (this was the model closest to your 7535 that i could find though)
> > >>
> > >> Maybe it's worth to look into BIOS and switch off some IRQs or
> > >> ports that you never need...
> > >>
> > >> If even Windows does not shut down then it's probably a warranty
> case.
> > >>
> > >>
> > >>
> > >> --
> > >> To UNSUBSCRIBE, email to debian-laptop-requ...@lists.debian.org
> > >> 
> > >> with a subject of "unsubscribe". Trouble? Contact
> > >> listmas...@lists.debian.org 
> > >> Archive:
> > >>
> https://lists.debian.org/20150331115716.28adf...@mirrors.kernel.org
> > >>
> > >>
> > >>
> > >
> > > --
> > > To UNSUBSCRIBE, email to debian-laptop-requ...@lists.debian.org
> > > with a subject of "unsubscribe". Trouble? Contact
> > > listmas...@lists.debian.org
> > > Archive: https://lists.debian.org/551aa07d.60...@blakemfg.com
> > >
> > >
> >
>
> --
> Отправлено с устройства Jolla

Re: Debian Wheezy on Dell 7535

[Dwijesh Gajadur]

Michael,

> *Anyway, i never suggested a firmware / BIOS update, though it's a really
good idea with very new laptops, so please honor your own right doecision
:)*

Yes you did suggested something about the BIOS, and then Jan-Rens suggested
me to try update the firmware.
*Big thanks to Jan-Rens too*. [?]


> *Just for the records, how did you do the update ? From the a Dell
'rescue&repair' boot (the dell system partition) or from Windows ?*

I did the update from Windows.

Here is the link from where I downloaded the firmware:

http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=29YWD

With Best Regards,

Dwijesh








On Tue, Apr 7, 2015 at 1:57 AM, Michael  wrote:

> Dwijesh,
>
> Glad it works for you now.
>
> Anyway, i never suggested a firmware / BIOS update, though it's a really
> good idea with very new laptops, so please honor your own right doecision :)
>
> Just for the records, how did you do the update ? From the a Dell
> 'rescue&repair' boot (the dell system partition) or from Windows ?
>
>
> --
> To UNSUBSCRIBE, email to debian-laptop-requ...@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact
> listmas...@lists.debian.org
> Archive:
> https://lists.debian.org/20150406235750.09d17...@mirrors.kernel.org
>
>

No Grub after install Debian 8 on laptop

[Dwijesh Gajadur]

Hello. I have a Dell Inspiron 7537 with UEFI and Windows 8.1 installed on
it. I have installed Debian 8 on it however I don't get Grub after
installation. I have also noticed that Grub did not install during
installation.

When I turn ON the laptop, it boots to Windows and Grub does not appear. I
have tried to install by turning the Secure boot and fast startup off and I
still get the problem.

I know it is possible to install Debian 8 on this laptop because I once did
it and succeeded. However I forgot how I did it. I forgot what steps I took
the last time.

Please help me to solve this problem. I really need Debian.

With Kind Regards,

Dwijesh

Re: No Grub after install Debian 8 on laptop

[Dwijesh Gajadur]

peace angel wrote:

> Can you boot using a live dvd/cd so you can install grub onto your system?

Yes I can boot with a live CD. However I don't know what to do next. I have
seen posts on the internet about that however its not working. I can tell
me step by step what commands I need to type on the Live OS to solve the
problem.

>Try into the bios and disable secure boot.

>and reinstall if not possible.

I have already disable secure boot. I have installed it several times
turning different options On and Off but still it does not work.



On Mon, Nov 23, 2015 at 10:44 PM, peace angel  wrote:

> Hello Dear,
>
> Can you boot using a live dvd/cd so you can install grub onto your system?
>
> Try into the bios and disable secure boot.
>
> and reinstall if not possible.
>
> Let us know how it goes.
>
> Regards,
>
>
> On Mon, Nov 23, 2015 at 10:29 PM, Dwijesh Gajadur 
> wrote:
>
>> Hello. I have a Dell Inspiron 7537 with UEFI and Windows 8.1 installed on
>> it. I have installed Debian 8 on it however I don't get Grub after
>> installation. I have also noticed that Grub did not install during
>> installation.
>>
>> When I turn ON the laptop, it boots to Windows and Grub does not appear.
>> I have tried to install by turning the Secure boot and fast startup off and
>> I still get the problem.
>>
>> I know it is possible to install Debian 8 on this laptop because I once
>> did it and succeeded. However I forgot how I did it. I forgot what steps I
>> took the last time.
>>
>> Please help me to solve this problem. I really need Debian.
>>
>> With Kind Regards,
>>
>> Dwijesh
>>
>>
>>
>
>
> --
> peaceng...@gmail.com
> help ever hurts never (it's really hurts man)
>

Re: No grub after Installing Debian 8 on Laptop

[Dwijesh Gajadur]

Debian 8 automatically creates the EFI partition during installation. And I
also tried creating it manually just to make sure and still get the same
problem.

On Mon, Nov 23, 2015 at 10:55 PM, Amir H. Firouziyan 
wrote:

> Hello,
> It's probably because you don't create EFI partition. If you but by UFEI
> method (not legacy) you need EFI partition.
>
>
> On November 23, 2015 10:01:18 PM GMT+03:30, Dwijesh Gajadur <
> dwije...@gmail.com> wrote:
>>
>> Hello. I have a Dell Inspiron 7537 with UEFI and Windows 8.1 installed on
>> it. I have installed Debian 8 on it however I don't get Grub after
>> installation. I have also noticed that Grub did not install during
>> installation.
>>
>> When I turn ON the laptop, it boots to Windows and Grub does not appear.
>> I have tried to install by turning the Secure boot and fast startup off and
>> I still get the problem.
>>
>> I know it is possible to install Debian 8 on this laptop because I once
>> did it and succeeded. However I forgot how I did it. I forgot what steps I
>> took the last time.
>>
>> Please help me to solve this problem. I really need Debian.
>>
>> With Kind Regards,
>>
>> Dwijesh
>>
>

Re: No Grub after install Debian 8 on laptop

[Dwijesh Gajadur]

Hannu Virtanen wrote:

> Have you tried to go through the installation process again and select
there an expert installation' ands go directly to 'install grub'

I tried to go through the Expert Install as you suggested however I did not
see any option to directly install grub. Can you tell me where this option
is found?


With Kind regards,

Dwijesh


On Mon, Nov 23, 2015 at 11:07 PM, Hannu Virtanen <
hannu_markus_virta...@yahoo.com> wrote:

> Have you tried to go through the installation process again and select
> there an expert installation' ands go directly to 'install grub'
>
> -hv
>
> --
> *From:* Dwijesh Gajadur 
> *To:* debian-laptop@lists.debian.org
> *Sent:* Monday, November 23, 2015 9:00 PM
> *Subject:* Re: No Grub after install Debian 8 on laptop
>
> peace angel wrote:
>
> > Can you boot using a live dvd/cd so you can install grub onto your
> system?
>
> Yes I can boot with a live CD. However I don't know what to do next. I
> have seen posts on the internet about that however its not working. I can
> tell me step by step what commands I need to type on the Live OS to solve
> the problem.
>
> >Try into the bios and disable secure boot.
>
> >and reinstall if not possible.
>
> I have already disable secure boot. I have installed it several times
> turning different options On and Off but still it does not work.
>
>
>
> On Mon, Nov 23, 2015 at 10:44 PM, peace angel 
> wrote:
>
> Hello Dear,
>
> Can you boot using a live dvd/cd so you can install grub onto your system?
>
> Try into the bios and disable secure boot.
>
> and reinstall if not possible.
>
> Let us know how it goes.
>
> Regards,
>
>
> On Mon, Nov 23, 2015 at 10:29 PM, Dwijesh Gajadur 
> wrote:
>
> Hello. I have a Dell Inspiron 7537 with UEFI and Windows 8.1 installed on
> it. I have installed Debian 8 on it however I don't get Grub after
> installation. I have also noticed that Grub did not install during
> installation.
>
> When I turn ON the laptop, it boots to Windows and Grub does not appear. I
> have tried to install by turning the Secure boot and fast startup off and I
> still get the problem.
>
> I know it is possible to install Debian 8 on this laptop because I once
> did it and succeeded. However I forgot how I did it. I forgot what steps I
> took the last time.
>
> Please help me to solve this problem. I really need Debian.
>
> With Kind Regards,
>
> Dwijesh
>
>
>
>
>
> --
> peaceng...@gmail.com
> help ever hurts never (it's really hurts man)
>
>
>
>
>

Debian on Dell XPS 15

[Dwijesh Gajadur]

Hi everyone..I am going to get a new Dell XPS 15 laptop. I want to know if
I will be able to install and use Debian on it properly without getting any
issues.

Has anyone ever used Debian on Dell XPS 15 laptop? Please share your
experience.

With Kind Regards,
Dwijesh

Re: Debian on Dell XPS 15

[Dwijesh Gajadur]

marcFP wrote:

>Hi everyone and Hacking Chrismas ;)
> have bought a Dell XPS 13, it comes with windows 10, and i installed
debian jessie.


Does XPS 13 has the option to switch to Legacy mode??



On Fri, Dec 25, 2015 at 11:58 PM, marcFP  wrote:

> Hi everyone and Hacking Chrismas ;)
> I have bought a Dell XPS 13, it comes with windows 10, and i installed
> debian jessie.
> The only issue which one i had have is when i try to boot the machine.
> I don't remember exactly how i could resolve this kind of problem.
> I think that the problem was EFI directory inside grub, but i don't tell
> it with totally security.
> (Excuse my bad english)
>
> El dv 25 de 12 de 2015 a les 09:26 +0400, en/na Dwijesh Gajadur va
> escriure:
> > Hi everyone..I am going to get a new Dell XPS 15 laptop. I want to
> > know if I will be able to install and use Debian on it properly
> > without getting any issues.
> >
> >
> > Has anyone ever used Debian on Dell XPS 15 laptop? Please share your
> > experience.
> >
> >
> > With Kind Regards,
> > Dwijesh
> >
>
>
>

Updating Kernel

[Dwijesh Gajadur]

Hello everyone and Happy New Year !

I got a new laptop Dell Inspiron 5559. The laptop has the new 6th
generation Intel proceesor (Skylake) on it. After installing Debian 8 on it
I got issues with the display and there was no sound also.

I wanted to update the kernel to version 4.3.3 to see if it solved the
problem.

Can you please tell me how to update the linux kernel on Debian?

Re: Updating Kernel

[Dwijesh Gajadur]

Thanks all for your quick reply

jeanbaptiste wrote:

> The best solution is to migrate your distribution to Stretch and leave
Jessie. Result is perfect for me.


I am going to try moving to Stretch. However I wanted to know your
experience with Stretch. Is Stretch currently on unstable or testing stage.
Do you get bugs while using it ?

Can I also know the exact model of your Dell Inspiron laptop?

With Kind Regards,

Dwijesh

On Wed, Jan 6, 2016 at 12:34 PM, mudongliang 
wrote:

>
>
> On 01/06/2016 04:11 PM, Dwijesh Gajadur wrote:
> > Hello everyone and Happy New Year !
> >
> > I got a new laptop Dell Inspiron 5559. The laptop has the new 6th
> > generation Intel proceesor (Skylake) on it. After installing Debian 8 on
> it
> > I got issues with the display and there was no sound also.
> >
> > I wanted to update the kernel to version 4.3.3 to see if it solved the
> > problem.
> >
> > Can you please tell me how to update the linux kernel on Debian?
>
> First , if you consist to Debian stable, you can add backports in you
> sources.list.
> The following kernel is from jessie-backports.
>
> linux-image-3.16.0-4-amd64/stable,now 3.16.7-ckt20-1+deb8u2 amd64
> [installed,automatic]
>   Linux 3.16 for 64-bit PCs
>
> linux-image-4.2.0-0.bpo.1-amd64/jessie-backports,jessie-backports
> 4.2.6-3~bpo8+2 amd64
>   Linux 4.2 for 64-bit PCs
>
> linux-image-4.3.0-0.bpo.1-amd64/jessie-backports,jessie-backports
> 4.3.3-2~bpo8+1 amd64
>   Linux 4.3 for 64-bit PCs
>
> The third kernel is suitable for you?
>
> Second, if you change the your sources to testing , or even unstable,
> there are more kernels you can test.
>
>
> - mudongliang
>
>

Re: Updating Kernel

[Dwijesh Gajadur]

Thank you very much Jean Baptiste.

I am first going to try the backports with Jessie and see if it solves my
problems.

If it does not, I am definitely going to move to Stretch :D

On Wed, Jan 6, 2016 at 3:19 PM, jeanbaptiste.g...@gmail.com <
jeanbaptiste.g...@gmail.com> wrote:

> Stretch is currently in testing stage.
>
> No bug identified at this step.
> And for my Dell Inspiron : Dell Inspiron 15 5000 Series with Intel Core-i5
> 6200U
>
> :)
>
> *Jean-Baptiste Gury*
> Mob : 0683763543
> Fixe : 0972276540
>
> 2016-01-06 12:05 GMT+01:00 Dwijesh Gajadur :
>
>> Thanks all for your quick reply
>>
>> jeanbaptiste wrote:
>>
>> > The best solution is to migrate your distribution to Stretch and leave
>> Jessie. Result is perfect for me.
>>
>>
>> I am going to try moving to Stretch. However I wanted to know your
>> experience with Stretch. Is Stretch currently on unstable or testing stage.
>> Do you get bugs while using it ?
>>
>> Can I also know the exact model of your Dell Inspiron laptop?
>>
>> With Kind Regards,
>>
>> Dwijesh
>>
>> On Wed, Jan 6, 2016 at 12:34 PM, mudongliang > > wrote:
>>
>>>
>>>
>>> On 01/06/2016 04:11 PM, Dwijesh Gajadur wrote:
>>> > Hello everyone and Happy New Year !
>>> >
>>> > I got a new laptop Dell Inspiron 5559. The laptop has the new 6th
>>> > generation Intel proceesor (Skylake) on it. After installing Debian 8
>>> on it
>>> > I got issues with the display and there was no sound also.
>>> >
>>> > I wanted to update the kernel to version 4.3.3 to see if it solved the
>>> > problem.
>>> >
>>> > Can you please tell me how to update the linux kernel on Debian?
>>>
>>> First , if you consist to Debian stable, you can add backports in you
>>> sources.list.
>>> The following kernel is from jessie-backports.
>>>
>>> linux-image-3.16.0-4-amd64/stable,now 3.16.7-ckt20-1+deb8u2 amd64
>>> [installed,automatic]
>>>   Linux 3.16 for 64-bit PCs
>>>
>>> linux-image-4.2.0-0.bpo.1-amd64/jessie-backports,jessie-backports
>>> 4.2.6-3~bpo8+2 amd64
>>>   Linux 4.2 for 64-bit PCs
>>>
>>> linux-image-4.3.0-0.bpo.1-amd64/jessie-backports,jessie-backports
>>> 4.3.3-2~bpo8+1 amd64
>>>   Linux 4.3 for 64-bit PCs
>>>
>>> The third kernel is suitable for you?
>>>
>>> Second, if you change the your sources to testing , or even unstable,
>>> there are more kernels you can test.
>>>
>>>
>>> - mudongliang
>>>
>>>
>>
>

PowerTop on Debian Stretch

[Dwijesh Gajadur]

Hi everyone.
I have a Dell Inspiron 5559 laptop which has a 40WHr, 4-cell battery. On
Windows 7 I get a battery life of 6-7 hours. On Ubuntu I get a battery life
of 5 hours after using PowerTop.
However on Debian I get only 3 hours of battery life. I have done
calibration several times and for several hours but I get only 3 hours of
battery life.

When I do *powertop --calibrate *the following lines appears:

root@debian:/# powertop --auto-tune
Loaded 137 prior measurements
Cannot load from file /var/cache/powertop/saved_parameters.powertop
File will be loaded after taking minimum number of measurement(s) with
battery only
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
Devfreq not enabled
Cannot load from file /var/cache/powertop/saved_parameters.powertop
File will be loaded after taking minimum number of measurement(s) with
battery only
To show power estimates do 124 measurement(s) connected to battery only
  unknown op '{'
Leaving PowerTOP

root@debian:/# powertop --calibrate
Loaded 87 prior measurements
Cannot load from file /var/cache/powertop/saved_parameters.powertop
File will be loaded after taking minimum number of measurement(s) with
battery only
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
Devfreq not enabled
Cannot load from file /var/cache/powertoproot@debian:/# powertop --auto-tune
Loaded 137 prior measurements
Cannot load from file /var/cache/powertop/saved_parameters.powertop
File will be loaded after taking minimum number of measurement(s) with
battery only
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
Devfreq not enabled
Cannot load from file /var/cache/powertop/saved_parameters.powertop
File will be loaded after taking minimum number of measurement(s) with
battery only
To show power estimates do 124 measurement(s) connected to battery only
  unknown op '{'
Leaving PowerTOP

root@debian:/# powertop --calibrate
Loaded 87 prior measurements
Cannot load from file /var/cache/powertop/saved_parameters.powertop
File will be loaded after taking minimum number of measurement(s) with
battery only
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
Devfreq not enabled
Cannot load from file /var/cache/powertop/saved_parameters.powertop
File will be loaded after taking minimum number of measurement(s) with
battery only
Starting PowerTOP power estimate calibration
Calibrating idle
System is not available
  unknown op '{'
To show power estimates do 174 measurement(s) connected to battery only
System is not available
Calibrating: disk usage
Calibrating backlight
 device /sys/class/backlight/intel_backlight/brightness
Calibrating idle
System is not available
System is not available
Calibrating: CPU usage on 1 threads
Calibrating: CPU usage on 4 threads
Calibrating: CPU wakeup power consumption
Calibrating: CPU wakeup power consumption
Calibrating: CPU wakeup power consumption
Calibrating USB devices
 device /sys/bus/usb/devices/1-5/power/control
 device /sys/bus/usb/devices/1-6/power/control
 device /sys/bus/usb/devices/1-8/power/control
 device /sys/bus/usb/devices/usb1/power/control
 device /sys/bus/usb/devices/usb2/power/control
Calibrating radio devices
 device /sys/class/rfkill/rfkill0/soft
 device /sys/class/rfkill/rfkill1/soft
 device /sys/class/rfkill/rfkill0/soft
 device /sys/class/rfkill/rfkill1/soft
Finishing PowerTOP power estimate calibration
Parameters after calibration:


Parameter state *Cannot load from file
/var/cache/powertop/saved_parameters.powertop *and
--
ValueName
 1.17alsa-codec-power (14)
 1.02backlight (4)
 2.08backlight-boost-100 (8)
 0.75backlight-boost-40 (6)
 0.00backlight-boost-80 (7)
 1.97backlight-power (5)
 9.66base power (83)
 5.81cpu-consumption (3)
24.29cpu-wakeups (2)
 0.00disk-operations (85)
 0.00disk-operations-hard (84)
 0.00enp3s0-link*Cannot load from file
/var/cache/powertop/saved_parameters.powertop *and -100 (20)
 0.00enp3s0-link-1000 (21)
 0.00enp3s0-link-high (22)
 0.00enp3s0-packets (23)
 0.00enp3s0-powerunsave (19)
 5.58enp3s0-up (18)
17.40gpu-operations (17)
 0.00radio:hci0 (16)
 0.00radio:phy0 (15)
 0.00runtime-:00:00.0 (30)
 0.00runtime-:00:02.0 (31)
 0.00runtime-:00:14.0 (32)
 0.00runtime-:00:14.2 (33

Re: PowerTop on Debian Stretch

[Dwijesh Gajadur]

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):
0x02418ef0 ***
Aborted



On Wed, Feb 10, 2016 at 12:37 PM, Aleksandar Atanasov <
redbaronqu...@gmail.com> wrote:

> I understood pretty well what you said. That is why I was
> so flabbergasted. You are now partially contradicting yourself. Your first
> post was "Battery is not important" and now "Use it efficiently" (why if
> it's not important?) and "Battery is not important" at the same time.
>
> Now on topic: from what I've seen so far googling this seems to be a bug.
> Multiple distributions (Arch, RH etc.) have patched this upstream. Not sure
> if fix is available for Ubuntu (which Ubuntu are we talking about here?)
>
> On 10 February 2016 at 08:18, Jos Collin  wrote:
>
>> 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.
>>
>
>
>
> --
> Elvis Presley: Love is worth all the gold on Earth
>

Re: PowerTop on Debian Stretch

[Dwijesh Gajadur]

Guys, I am glad to tell you that my problem has been solved.
The problem was actually with my AMD GPU. *Thank you Arian*, for driving my
attention on the GPU.
I followed the instructions on
https://wiki.debian.org/AtiHowTo#Debian_Stretch_.28testing.29
and installed the missing firmwares and packages. After that I ran *powertop
--calibrate* and then* powertop --auto-tune*.
I can now get a battery life of up to 6-7 hr on Debian 😁

What happened according to me was that PowerTop was not able to detect my
AMD GPU as the required firmware was not installed. After installing the
firmware, PowerTop was able to calibrate properly and take the correct
measurements.


Richard Owlett wrote:

>Please note use of present tense.
>I see two possible interpretations:
>  1. he has a multi-boot installation. In which case he is NOW getting
longer run
> times in Windows and Ubuntu than in Debian.
>  2. he did a clean install of Debian and saw an IMMEDIATE decrease in run
time.

>If that is not so, I ask Mr. Gajadur to clarify.

Yes I actually have a dual boot installation. I first Dual booted Windows 7
and Debian 9. After finding that the battery life on Debian was only 3 hr,
I replaced the Debian installation with Ubuntu 15.10 installation just to
see how the battery life is on Ubuntu. I found that I could get a battery
life of up to 5hr after using PowerTop on Ubuntu. However I am not a fan of
Ubuntu. Debian is the only linux distro I love. So I removed Ubuntu and
re-installed Debian and tried to find out what was causing the low battery
life on Debian.
But now there is nothing to worry about as the problem has been solved
thanks to Arian.

I want to thank you all for your comments and help  😀

Best Regards,

Dwijesh


On Wed, Feb 10, 2016 at 11:39 PM, David Wright 
wrote:

> On Wed 10 Feb 2016 at 11:32:48 (+0530), Jos Collin wrote:
> > Hi, I'm not answering your question. But my suggestion is: don't bother
> about
> > your battery life. Because even if you get 10 hours now, it is going to
> reduce
> > slowly and reach 30 mins or 10 mins with in a few years. Then you have to
> > replace your battery with a new one.
> >
> > I had a battery that drains to 0% with in 30 secs. I replaced that in
> 2012 with
> > a 9 cell battery, when I started traveling with my laptop. The new
> battery also
> > drains to 0% within 30 secs now.
> >
> > So I advice you to forget about battery life and move on to other
> important
> > things. :-)
>
> The (small size) battery on this laptop contains 42Wh fully charged.
> Discharging it in 30 seconds would generate 5kW which is two
> high-power electric kettles in the UK, over three in the US.
>
> So either your battery hasn't charged properly, or else it's not
> discharging properly, probably because there's a duff cell. In the
> latter case, the battery remains a hazard because it still contains a
> lot of charge if only it could find a discharge path.
>
> > On 10-Feb-2016 11:05 AM, "Dwijesh Gajadur"  wrote:
> > I have a Dell Inspiron 5559 laptop which has a 40WHr, 4-cell
> battery. On
> > Windows 7 I get a battery life of 6-7 hours. On Ubuntu I get a
> battery life
> > of 5 hours after using PowerTop.
> > However on Debian I get only 3 hours of battery life. I have done
> > calibration several times and for several hours but I get only 3
> hours of
> > battery life.
>
> If these timings can be achieved at will, I'd be interested to know if
> the laptop was running at the same temperature on the various OSes. A
> poor video driver might waste a lot of power. I suspect this is the
> case with my own Dell laptop; given the chance it would make a cuppa.
> I occasionally see the CPU at 96.5°C.
>
> > My Question is, is it normal to get the lines:
> >   □ Cannot load from file
> /var/cache/powertop/saved_parameters.powertop
> >   □ Devfreq not enabled
> > Is it because of these lines that PowerTop is unable to extend the
> battery
> > life?
> > Debian Stretch is currently using PowerTop version 2.8 and I heard
> > somewhere on a forum that there is a bug in the 2.8 version. Is it
> true
> > that there is a bug ? And is it that bug which is causing the
> problem?
>
> Does
> https://bugs.debian.org/cgi-bin/pkgreport.cgi?dist=unstable;package=powertop
> help?
>
> Cheers,
> David.
>
>