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PostPosted: Thu Sep 03, 2015 8:51 pm 
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Joined: Thu Sep 03, 2015 8:24 pm
Posts: 15
Well, first of all I'd like to say a friendly "hello" to all uberstudent-users/developers! I'm not sure which section would be best for my post, so please feel free to move it if required.

After I heard about this distro, I just wanted to have a quick look at it and now I'm stuck with it. Recently I had an issue and found some posts in forums of other distros about a cpu-eating line (even in idle around 10%) in htop: /usr/bin/X :0 -audit 0 -auth /var/lib/mdm/ :0.Xauth -nolisten tcp vt8 (or similar). After some research I tried a few suggestions (removing the desktop-background picture, software-update, etc.). Finally it turned out that the Conky-Uberstudent panel was the culprit, running several - more than a dozen - instances parallel! I do not know why this happened, but after removing that from the start-menu the problem was solved. I just thought of mentioning it, maybe someone else experiences the same.

Because of this issue I also tried to install lightdm (it gave me the choice to select it) and start with it instead of mdm (which was clearly not the culprit after all) but I had no luck: Black screen. Now I've chosen instead of "last" the instance "uberstudent xfce" and could log in. I hope I did not mess up anything (now this remark just reminded me of okular: somehow I did not succeed installing it).

Otherwise I'd like to mention a great file manager software: SpaceFM! Absolutely brilliant imo (just for those who did not hear about it). One more thing: The other day I was wondering why there is no irc channel for Uberstudent. Maybe it could be useful sometimes for a quick help.

Well, thanks again to all the developers and contributors. Uberstudent is truly an amazing distro imo.


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 Post subject: Re: Conky Eating CPU
PostPosted: Sat Sep 05, 2015 1:03 pm 
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UberStudent Staff
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Joined: Mon Jan 21, 2013 7:18 pm
Posts: 93
bradley wrote:
...it turned out that the Conky-Uberstudent panel was the culprit, running several - more than a dozen - instances parallel! I do not know why this happened, but after removing that from the start-menu the problem was solved. I just thought of mentioning it, maybe someone else experiences the same.

I have occasionally encountered excessive CPU load and discovered that multiple instances of Conky were the culprit; when that happens I kill them with...
Code:
damion@uberstudent:~$ killall -9 conky

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 Post subject: Re: Conky Eating CPU
PostPosted: Sat Sep 05, 2015 7:46 pm 
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Joined: Thu Sep 03, 2015 8:24 pm
Posts: 15
Damion Lunin wrote:
bradley wrote:
...it turned out that the Conky-Uberstudent panel was the culprit, running several - more than a dozen - instances parallel! I do not know why this happened, but after removing that from the start-menu the problem was solved. I just thought of mentioning it, maybe someone else experiences the same.

I have occasionally encountered excessive CPU load and discovered that multiple instances of Conky were the culprit; when that happens I kill them with...
Code:
damion@uberstudent:~$ killall -9 conky


Indeed, thanks, that's also a possible solution.

Speaking of Conky: There is an other Conky-script in the distro (not the small panel in the middle but a more detailed one), which I tried to use by making it enabled on boot. However the panel was under the background picture so I did see it for a moment on boot, but immediately after that it was covered by the picture. Did someone maybe managed to configure the detailed Conky-script properly?


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PostPosted: Sun Sep 06, 2015 3:11 am 
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Joined: Sun Nov 11, 2012 8:54 am
Posts: 940
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Conky is supposed to appear to run multiple instances. What it does is continually refreshes every few seconds. It spawns an instance and kills it, and repeats that over and over.

There's a tool to mange the running of the conky script at Applications menu > System > Look and Feel > UberStudent Desktop logo.

Yes, the logo is 100% a conky script, not part of any desktop background image. It sits atop any background image. ;)

It does take some memory and processing power to run. You should definitely disable it on a low spec machine.

The other Conky scripts don't work yet. They are simply in the package for future you and so I don't lose track of them. :lol:

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PostPosted: Sun Sep 06, 2015 6:33 pm 
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Established UberStudent User

Joined: Thu Sep 03, 2015 8:24 pm
Posts: 15
Stephen Ewen wrote:
It does take some memory and processing power to run. You should definitely disable it on a low spec machine.


Indeed, I did disable the conky panel and do use the wallpaper with the Uberstudent logo. It looks great.

I did have a look at the other conky-script and it turns out that it's already useable with some changes. If someone is interested in having a conky panel with ram/swap/cpu/hdd/network, etc. usage, this is how it did work for me:

1. Open /etc/conky/conky.conf as root with some editor (I prefer geany)

2. Paste the following line in the file (e.g. after the line "own_window_type desktop"):

own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager

3. After starting conky, I had some flickering, which was fixed by pasting the following line e.g. after the one above:

double_buffer yes

4. I did want to have the panel on the right side, so I changed "alignment top_left" to "alignment top_right".

5. If you do not use eth0 for internet, change in conky.conf after "upspeed" and "downspeed" eth0 to whatever you use (e.g. wlan0 or wwan0).
You can also get more processes shown at the bottom of the panel by adding ${color lightgrey} ${top name 5} ${top pid 5} ${top cpu 5} ${top mem 5} with the appropriate number (e.g. the next one is 6, and after that 7, etc.)

6. Save the changes as root and you can already start conky from the terminal.

7. In order to make it autostart, go to "Session and Startup" (e.g. via application finder), choose "Application Autostart", click "+ Add" and just type "conky" in the three lines there. After OK, make sure it's checked in Application Autostart (if you don't want it, just uncheck it).

I'd like to point out again: I only use this conky panel now, the one in the middle is disabled via autostart. I did not test both conkys at the same time. However I do like to have this nice and simple conky panel on the desktop with lot's of useful data. It gives a good overview over the system.

(P.S.: Something completely different: After booting the system and starting to work, I experienced several times that suddenly a screen lock up appeared out of nowhere, so I had to type my password to log in again. Did someone else maybe experience the same?)


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