[Arm-dev] Any type of light Desktop Environment on Arm Centos7+RPi3

[Robert Moskowitz]

I suspect the login screen is very light.  There is that little icon 
that lets you select which GDM gets loaded, so the 'load' comes in 
loading a given GDM.  I had problems with F24-X86_64 loading Cinnamon 
even when you selected Xfce.  As it is I have both installed, but the 
login defaults now to loading Xfce.  Supposedly the bug has been fixed.

Quite some years back on Fedora-arm, probably F22, there was a GDM 
discussion and Xfce and LDXE were the 'winners' in memory and cpu. I 
tried LDXE, but liked the feel of Xfce and switched to it.  With Fedora 
images, it is really easy to try a GDM, just build a mSD card for each 
GDM and boot and see how it goes.

Still use k3b...

On 03/06/2017 10:16 AM, Gordan Bobic wrote:
> Last time I checked, KDE memory footprint was quite similar to XFCE 
> (and in any case much smaller than, say, Firefox).
> I don't use Gnome so cannot comment on that, but I don't imagine GDM 
> itself is that heavy just to display the login screen.
>
> On Mon, Mar 6, 2017 at 3:07 PM, Robert Moskowitz <rgm at htt-consult.com 
> <mailto:rgm at htt-consult.com>> wrote:
>
>     It is all about resources consumed by the GDM.  Gnome is a real
>     hog.  Also 2D vs 3D.  I would think that for a server, 2D is enough.
>
>     Battery life may not be an issue for C7 users like it is for my
>     F24 notebook; I gained considerable battery life switching to XFce
>     from Gnome.
>
>     IMNSHO, it is a priorities thing.  If all rpms compile equally as
>     well, the ones that use the least memory and cpu over others.
>
>     My 1cent worth.
>
>     On 03/06/2017 09:24 AM, Gordan Bobic wrote:
>>     KDE works fine for me on RedSleeve, so it definitely should be
>>     possible to get it working on CentOS as well.
>>
>>     On Mon, Mar 6, 2017 at 2:21 PM, Robert Moskowitz
>>     <rgm at htt-consult.com <mailto:rgm at htt-consult.com>> wrote:
>>
>>
>>
>>         On 03/06/2017 08:41 AM, Fabian Arrotin wrote:
>>
>>             On 04/03/17 11:20, Fabian Arrotin wrote:
>>
>>                 On 03/03/17 16:49, Hamid Safe wrote:
>>
>>                     Hello all,
>>                     I was wondering if there is a method to provide a
>>                     "basic" graphical env
>>                     on Centos7 arm. This is in line with the recent
>>                     upstream Fedora
>>                     publishing all types with their ver:25. also the
>>                     fact that Raspbian now
>>                     released a stable graphical env that works out of
>>                     the box with all the
>>                     goodies.
>>                     My tries no matter what type of graphical env
>>                     chosen have failed with
>>                     dependencies not met. I have already set up the
>>                     epel for arm. I know
>>                     that you have gone a long way preparing the
>>                     Centos7 minimal for the arm
>>                     and it is already awesome, however having a
>>                     graphical skin particularly
>>                     in arm boards sometimes is a must-have requirement.
>>                     Thanks in advance
>>
>>                 Hi,
>>
>>                 I don't think someone/anyone really spent time
>>                 investigating the whole
>>                 chain for a desktop environment on CentOS 7 armhfp.
>>                 I've myself never
>>                 tried even to just see if that would work. The
>>                 initial goal was to have
>>                 "minimal" working, as most users are probably
>>                 targeting such system. If
>>                 now some people would like to spend time
>>                 investigating what would be
>>                 needed, what's still to be built, etc, that can
>>                 "become a thing" :-)
>>
>>
>>             Just had 5 minutes to connect a rpi2 to my tft screen and
>>             tested the
>>             following :
>>
>>             yum group install 'Server with GUI' --skip-broken
>>             yum install xorg-x11-drv-fbdev.armv7hl
>>             xorg-x11-drv-evdev.armv7hl xterm
>>
>>             After that , as I was able to get a X environment working
>>             with
>>             xinit /bin/xterm
>>
>>             So I guess it's now a matter of finding a correct
>>             GDM/login manager and
>>             then something light that can be used ...
>>
>>
>>         I vote for Xfce.  Though LXDE seems to have a following.  You
>>         can try them all from the latest rawhide builds over at:
>>
>>         https://koji.fedoraproject.org/koji/tasks?state=all&view=tree&method=appliance&order=-id
>>         <https://koji.fedoraproject.org/koji/tasks?state=all&view=tree&method=appliance&order=-id>
>>
>>
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>>
>>
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