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Author Topic: What's that in the top-left corner of the screen? (solved)  (Read 3038 times)

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Offline stefanreich

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What's that in the top-left corner of the screen? (solved)
« on: February 13, 2015, 01:17:43 pm »
Hi!

Since Peppermint 5, I always see something weird (always different stuff) in the top-left corner instead of the actual application icon...

See, for example, here:  http://tinybrain.de/1000157

Please advice. It looks weird and it confuses my desktop automation software... :-)

Cheers,
Stefan
« Last Edit: February 16, 2015, 09:00:37 am by stefanreich »
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Offline rjm65

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Re: What's that in the top-left corner of the screen?
« Reply #1 on: February 13, 2015, 01:34:16 pm »
Top left corner looks the same to me, except you drew a red box around everything on right side picture...  I can't see what you are trying to explain?
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Offline stefanreich

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Re: What's that in the top-left corner of the screen?
« Reply #2 on: February 13, 2015, 01:46:11 pm »
In the example, it SHOULD be the IntelliJ IDEA icon - and it is totally mangled.

Some other times, I am seeing the icon with what appears to be a black downward arrow behind it. Also proably not intended like this? Here: tinybrain.de/1000158
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Offline rjm65

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Re: What's that in the top-left corner of the screen?
« Reply #3 on: February 13, 2015, 02:20:17 pm »
well at least i can see it now, it is pretty mangled up in the first pic but in the first pic off to the side where it says Project on a tab it looks just right...   :-\
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Offline PCNetSpec

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Re: What's that in the top-left corner of the screen?
« Reply #4 on: February 13, 2015, 05:55:35 pm »
Is it just in that one java app ?
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Offline stefanreich

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Re: What's that in the top-left corner of the screen?
« Reply #5 on: February 14, 2015, 11:07:10 am »
Is it just in that one java app ?

All the apps it seems... sometimes the Firefox icon appears there even though Firefox is not in the foreground.

Another example
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Offline PCNetSpec

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Re: What's that in the top-left corner of the screen?
« Reply #6 on: February 14, 2015, 11:18:11 am »
How odd   :-\

There are  a few options that you can try....

a) removing the application icon from the top left of windows
run:
Code: [Select]
xfwm4-settings
and on the Style tab, under the Button Layout heading, drag the  "Menu" icon to the "Hidden" box below.

b) try a different Icon theme

c) try a different xfwm4 theme

d) try disabling compositing
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Offline stefanreich

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Re: What's that in the top-left corner of the screen?
« Reply #7 on: February 14, 2015, 11:36:38 am »
Thanks for the hints. No changes so far. It seems like the corner is some kind of residue buffer. Even if I close all the windows, it stays as it is. If I click on it, whatever is actually there reacts (the desktop or a window).

How do I disable compositing?
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Re: What's that in the top-left corner of the screen?
« Reply #8 on: February 14, 2015, 11:42:23 am »
Are you running a Lua script?

I was checking out the code in the OP and don't see any garbage collection taking place.

Hrm...   :-\

EDIT

EXTRA CREDIT READING (picked at random -- read between the lines)...

Java: http://stackoverflow.com/questions/7980177/agressive-garbage-collector-strategy?rq=1

Lua: http://stackoverflow.com/questions/5010100/why-does-lua-use-a-garbage-collector-instead-of-reference-counting

...if you don't know what I'm referring to.  ;)
« Last Edit: February 14, 2015, 12:32:12 pm by VinDSL, Reason: Addendum »

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Re: What's that in the top-left corner of the screen?
« Reply #9 on: February 14, 2015, 11:11:33 pm »
Are you talking about the Libre Office icon on the print dialog box?
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Re: What's that in the top-left corner of the screen?
« Reply #10 on: February 15, 2015, 03:49:28 am »
Thanks for the hints. No changes so far. It seems like the corner is some kind of residue buffer. Even if I close all the windows, it stays as it is. If I click on it, whatever is actually there reacts (the desktop or a window).

How do I disable compositing?

Hi stefanreich, navigate to: menu > Preferences > Peppermint Control Center.  In the new window, select the: Desktop Effects tab.  Uncheck/untick the: Enable desktop effects box.  I hope this helps  ;).
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Offline stefanreich

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Re: What's that in the top-left corner of the screen?
« Reply #11 on: February 16, 2015, 08:48:36 am »
Are you running a Lua script?
Lua is not related to the icon problem...

Quote
I was checking out the code in the OP and don't see any garbage collection taking place.

Hrm...   :-\

EDIT

EXTRA CREDIT READING (picked at random -- read between the lines)...

Java: http://stackoverflow.com/questions/7980177/agressive-garbage-collector-strategy?rq=1

Lua: http://stackoverflow.com/questions/5010100/why-does-lua-use-a-garbage-collector-instead-of-reference-counting

...if you don't know what I'm referring to.  ;)

Hm? I don't see the point actually... of course Lua has GC which is why I'm using it. :)
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Offline stefanreich

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Re: What's that in the top-left corner of the screen?
« Reply #12 on: February 16, 2015, 08:50:10 am »
Hi stefanreich, navigate to: menu > Preferences > Peppermint Control Center.  In the new window, select the: Desktop Effects tab.  Uncheck/untick the: Enable desktop effects box.  I hope this helps  ;).
Hey! I think it helps... stuff looks normal now :)

So it's a problem between my graphics card and the drivers I presume?
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Offline stefanreich

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Re: What's that in the top-left corner of the screen?
« Reply #13 on: February 16, 2015, 09:00:12 am »
I'll mark the question solved although it's a little sad that desktop effects have to go overboard... ^^

Thanks for the help
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Offline PCNetSpec

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Re: What's that in the top-left corner of the screen? (solved)
« Reply #14 on: February 16, 2015, 09:25:38 am »
As a matter of interest, what's the output from:
Code: [Select]
sudo lshw -C display
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