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[Q] Does the N5 has the GRAM technology

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kamnikaz

Senior Member
Jan 21, 2011
113
23
Hi everybody,

So everything is in the title ^^
I've ordered mine (Black 16go) and was wondering if it has the same GRAM technology used for the G2's screen.

Thanks in advance
 

Enddo

Senior Member
Oct 31, 2013
2,020
862
Atlanta, Ga.
www.AndroidExplained.com
Hi everybody,

So everything is in the title ^^
I've ordered mine (Black 16go) and was wondering if it has the same GRAM technology used for the G2's screen.

Thanks in advance

I asked this question in the forums recently and had zero response. at first I thought no

GRAM is a term that LG coined for the technology Self Panel Refresh. In my research I saw this tech being talked about in 2011, so it's not really new.

To my understanding SPR is not in the hardware of the Nexus 5. At least I can't find any mention of it. I was talking in /r/Android and someone said otherwise

http://www.reddit.com/r/Android/com...battery_miser_thanks_to_new/cd5ktqf?context=3

someone on reddit says
That is code from the N5 kernel. The device tree setting is overridden here - https://android.googlesource.com/ke...74-hammerhead/msm8974-hammerhead-rev-11j.dtsi - Also you can check the kernel log on bootup.

Panel Self Refresh is exactly what command mode panels do and it behaves as you describe. There is some memory on the IC that drives the panel. The panel refreshes itself from this memory every 16.6ms without involving the apps processor.

I have no idea what 'Command Mode Panels' do, nor could I find the details of the panel used in the Nexus 5. The best I could find was that it is made by Sharp, but even that I can't confirm because I could only find one source saying so.

I created a thread in /r/Android to ask - http://www.reddit.com/r/Android/comments/1psnl8/does_the_nexus_5_really_have_gram/ - but I still couldn't get a solid confirmation :(

From the usage time I'm seeing in reviews, I would have to guess no. But I really dunno
 
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CaptnAwesome

Member
Jan 15, 2012
11
5
The Nexus 5 has GRAM!

I stumbled across a review which specifically mentions and tests Panel self refresh (PSR). From their browser battery tests it looks like they are getting just under 7 hours without PSR enabled and just under 8 hours with PSR enabled. It provides around a 15% -25% increase in battery life depending on usage. I have no idea how they figured it out, but it looks like it's there.

I can't post outside links unfortunately but the review is at tweakers.net
 

dwang

Senior Member
Nov 23, 2008
2,454
318
I stumbled across a review which specifically mentions and tests Panel self refresh (PSR). From their browser battery tests it looks like they are getting just under 7 hours without PSR enabled and just under 8 hours with PSR enabled. It provides around a 15% -25% increase in battery life depending on usage. I have no idea how they figured it out, but it looks like it's there.

I can't post outside links unfortunately but the review is at tweakers.net

here's the link that talks about the GRAM in the nexus 5.

http://tweakers.net/reviews/3298/3/...-accuduur-weinig-capaciteit-veel-snufjes.html
 

kamnikaz

Senior Member
Jan 21, 2011
113
23
Thx for your great answers guys =) much apreciated

Envoyé de mon Nexus S en utilisant Tapatalk
 

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    The Nexus 5 has GRAM!

    I stumbled across a review which specifically mentions and tests Panel self refresh (PSR). From their browser battery tests it looks like they are getting just under 7 hours without PSR enabled and just under 8 hours with PSR enabled. It provides around a 15% -25% increase in battery life depending on usage. I have no idea how they figured it out, but it looks like it's there.

    I can't post outside links unfortunately but the review is at tweakers.net
    2
    I stumbled across a review which specifically mentions and tests Panel self refresh (PSR). From their browser battery tests it looks like they are getting just under 7 hours without PSR enabled and just under 8 hours with PSR enabled. It provides around a 15% -25% increase in battery life depending on usage. I have no idea how they figured it out, but it looks like it's there.

    I can't post outside links unfortunately but the review is at tweakers.net

    here's the link that talks about the GRAM in the nexus 5.

    http://tweakers.net/reviews/3298/3/...-accuduur-weinig-capaciteit-veel-snufjes.html
    1
    Hi everybody,

    So everything is in the title ^^
    I've ordered mine (Black 16go) and was wondering if it has the same GRAM technology used for the G2's screen.

    Thanks in advance

    I asked this question in the forums recently and had zero response. at first I thought no

    GRAM is a term that LG coined for the technology Self Panel Refresh. In my research I saw this tech being talked about in 2011, so it's not really new.

    To my understanding SPR is not in the hardware of the Nexus 5. At least I can't find any mention of it. I was talking in /r/Android and someone said otherwise

    http://www.reddit.com/r/Android/com...battery_miser_thanks_to_new/cd5ktqf?context=3

    someone on reddit says
    That is code from the N5 kernel. The device tree setting is overridden here - https://android.googlesource.com/ke...74-hammerhead/msm8974-hammerhead-rev-11j.dtsi - Also you can check the kernel log on bootup.

    Panel Self Refresh is exactly what command mode panels do and it behaves as you describe. There is some memory on the IC that drives the panel. The panel refreshes itself from this memory every 16.6ms without involving the apps processor.

    I have no idea what 'Command Mode Panels' do, nor could I find the details of the panel used in the Nexus 5. The best I could find was that it is made by Sharp, but even that I can't confirm because I could only find one source saying so.

    I created a thread in /r/Android to ask - http://www.reddit.com/r/Android/comments/1psnl8/does_the_nexus_5_really_have_gram/ - but I still couldn't get a solid confirmation :(

    From the usage time I'm seeing in reviews, I would have to guess no. But I really dunno