[gentoo-user] Scanner and weird streaking

[Urs Schütz]

Any chance you need to shield the scanner from light sources outside the scan 
head?
Throw a dark jacket over it for testing.

Re: [gentoo-user] jupyter notebook 500 : Internal Server Error

[Urs Schütz]

On 2020-06-25 21:44, Andrés Becerra Sandoval wrote:



El jue., 25 de jun. de 2020 a la(s) 14:14, Valmor de Almeida 
(val.gen...@gmail.com <mailto:val.gen...@gmail.com>) escribió:


Hello,
I had to enable ~amd64 to emerge jupyter so I know this is bound for
problems. However, anyone there able to use jupyter notebooks in
gentoo?
No matter what notebook I try to open, I get the internal server error.
Thank you.
--
Valmor


Not much help, but I have not had problems with jupyter for years, with 
~amd64 profile.


--
   Andrés Becerra Sandoval



I isolate jupyter (actually jupyterlab) in an separate python 
environment. I do use pipenv to manage the python environment. It boils 
down to three commands:


$>  cd projectfolder
projectfolder $>  pipenv install
projectfolder $>  pipenv shell
projectfolder $>  pipenv install jupyter-lab

pipenv itself can be installed with emerge. pipenv resolves the 
dependencies within the virtual python environment.
This way of working with python solved most of my troubles with ~amd64 
python packages. python packages for system and for programming purposes 
stay separate this way.


 --
Urs Schütz

Re: [gentoo-user] Re: simple image annotation software

[Urs Schütz]

On 2020-04-02 15:57, Grant Edwards wrote:

On 2020-04-02, Grant Edwards  wrote:

On 2020-04-02, Ashley Dixon  wrote:


If your original images are screenshots, I'd recommend 'flameshot'.


They're not.  They're jpeg files produced by running photos though
some Imagemagick 'convert' operations.  Does that mean flameshot can't
be used to annotate them?


I installed flameshot (required no additional packages be installed).

It can not be used to annotate existing image files.  There's a long
list of requests for that feature on the GitHub site, but apparently
no progress on that front.  According to some of those comments,
shutter can do it.

Personally, I don't really "get" the need for the capture
functionality. ImageMagick's 'import' command works for me...

--
Grant


What about displaying an image and taking a screenshot? To clumpsy?
--
Urs

Re: [gentoo-user] query ebuild fields

[Urs Schütz]

On 6/21/19 7:27 PM, Ian Zimmerman wrote:

Is there a command to show the fields like DESCRIPTION and HOMEPAGE from
an installed ebuild, or is this one of the annoying gaps in the
framework that must be (and can be) trivially worked around?

...

Eix is faster for such things. You can format the output as you need it. 
Does the following do what you want?


eix -I --format '\n\n\n\n' rxvt-unicode

urs

Re: [gentoo-user] no more googleearth in portage

[Urs Schütz]

On 09/20/17 07:55, Raffaele Belardi wrote:

I suppose it's due to Google's choice to support only Chrome, although I missed 
the Gentoo
news bit if there was one.

For Android there is the really good Open Street Map application, are there any 
desktop
alternatives in Portage for non-Chrome users? I know OSM has a web interface 
but I'd
prefer a standalone application.

raffaele




Maybe  sci-geosciences/viking ?
Try to change the map from MapQuest to MapNik to get a first impression.

Urs

Re: [gentoo-user] [OT]: "New to aliexpress" pop up - how to block it?

[Urs Schütz]

On 07/16/17 14:08, tu...@posteo.de wrote:

On 07/16 01:58, Urs Schütz wrote:

On 07/16/17 05:56, R0b0t1 wrote:

On Sun, Jul 16, 2017 at 3:44 AM,  <tu...@posteo.de> wrote:

On 07/16 03:12, R0b0t1 wrote:

On Sun, Jul 16, 2017 at 2:11 AM,  <tu...@posteo.de> wrote:

On 07/16 01:59, R0b0t1 wrote:

On Sun, Jul 16, 2017 at 1:47 AM,  <tu...@posteo.de> wrote:

Hi,

that drives my insane:
While searching items for my DIY Nixie clock on aliexpress I get
one certain popup with each new access to aliexpress asking
me, whether I am new to aliexpress and offers me a coupon.

I have no othe chance than clicking on this [beep] pop up
to be able to see the page contents.

I searched the web for according informations how to block
this [beep] popup, but I only get informations how to
remove a certain kind of adware virus from Mac and Windows.

Since this virus pops up an advertisement of constantly changing
goods and is page filling I am sure I am not suffering from this.

If anyone out there has solved this problem without disabling
the possibility to /buy/ something on aliexpress PLEASE HELP
ME. I AM NEAR INSANITY! ;) :)

Thanks a lot in advance for any life saver!
Cheers
Meino



You might be able to block the element on the page using uBlock
Origin, but unfortunately that type of ad is very hard to remove. If
you have to interact with it is harder to select using uBlock's
interface.

You can also use Greasemonkey to block more invasive ads, but I never
had much luck with that. It's designed to do more than filter
background content.

I feel like I need to ask whether or not you've done something like
disable cookies. I'd not suggest doing that, at most delete all of
them when you close your browser session. It's impossible to use most
pages without having cookies enabled (this makes automating things
with web libraries infuriating).

R0b0t1.



Hi R0b0t1,

For "normal browsing" I created a profile for firefox which is privacy
enhanced -- blocking all sorts of things. This profile works half
with the sites I normally visit.
Aliexpress get screwed up when visited using this profile.

So I created a second profile, which I use for Aliexpress only. This
one has only some privacy related things enabled. Aliexpress works --
including poping up this [beep] "Are you new to Aliexpress?" popup.
Cookies are enabled with this profile.



Does it do this on every page load or just the first time you interact with it?



I did the following:
*** Surf to www.aliexpress.com (no popup and no way to search despite
the fact that a search bar is shown.)
*** Click on any product -- product will be displayed and popup pops
up (hence the name), click the popup to remove it. Search bar now works.
*** Click "reload tab"...the whole [beep] starts from the beginning.



I've managed to block something similar using uBlock Origin, but it
was really hard to select it with the GUI picker that creates blocking
rules for you.

The technical term for what the website is using is called a popover
and I remember people talking about blocking them with uBlock Origin
because they are hard to block, but I can't find anything relevant to
this discussion in Google.


As soon as I login into Aliexpress the popup disappears -- now
Aliexpress is satisfied, because tracking my searches is now
personalized.



If you can't find a way to target the overlay with uBlock Origin you
might try looking at https://greasyfork.org/en and using Greasemonkey.
Unfortunately all the premade scripts I could find were simple things
like pricing changes.


Why Greasemonkey is especially use ful in this case?
(this is curiosity -- and NO expression of doubt, R0b0t1! :)



Greasemonkey injects JavaScript onto your webpages based on filter
criteria, so you can effectively do anything your browser can do when
displaying the webpage. Some of the more impressive feats are
reengineered webpages that are better than the original service, most
of them are mundane and only alter a few values on a webpage.

You can also use it for laser-guided adblocking if you need to.
Unfortunately Greasemonkey requires quite a bit of knowledge about
itself, web development, and the page you are trying to modify, so I
can't be of much help apropos.




Its the same reason for why buying via Aliexpress App on a
smartphone/tablet is cheaper than using a PC.
I am using XPrivacy on my Android tablet which shows, blocks
or allows ANY access to permissions like "Get your location"
et cetera -- I instantly deleted that App after I saw, what this
App wants to know.



It's sad to see another website doing this. There's a few that make it
all but impossible to use the service without logging in or supplying
information one way or another. If the creator of the website doesn't
want you to use it, I'm not sure there's a lot that can ultimately be
done about it.

In a similar vein, my phone now displays advertising. The state of
computing has me

Re: [gentoo-user] [OT]: "New to aliexpress" pop up - how to block it?

[Urs Schütz]

On 07/16/17 05:56, R0b0t1 wrote:

On Sun, Jul 16, 2017 at 3:44 AM,   wrote:

On 07/16 03:12, R0b0t1 wrote:

On Sun, Jul 16, 2017 at 2:11 AM,   wrote:

On 07/16 01:59, R0b0t1 wrote:

On Sun, Jul 16, 2017 at 1:47 AM,   wrote:

Hi,

that drives my insane:
While searching items for my DIY Nixie clock on aliexpress I get
one certain popup with each new access to aliexpress asking
me, whether I am new to aliexpress and offers me a coupon.

I have no othe chance than clicking on this [beep] pop up
to be able to see the page contents.

I searched the web for according informations how to block
this [beep] popup, but I only get informations how to
remove a certain kind of adware virus from Mac and Windows.

Since this virus pops up an advertisement of constantly changing
goods and is page filling I am sure I am not suffering from this.

If anyone out there has solved this problem without disabling
the possibility to /buy/ something on aliexpress PLEASE HELP
ME. I AM NEAR INSANITY! ;) :)

Thanks a lot in advance for any life saver!
Cheers
Meino



You might be able to block the element on the page using uBlock
Origin, but unfortunately that type of ad is very hard to remove. If
you have to interact with it is harder to select using uBlock's
interface.

You can also use Greasemonkey to block more invasive ads, but I never
had much luck with that. It's designed to do more than filter
background content.

I feel like I need to ask whether or not you've done something like
disable cookies. I'd not suggest doing that, at most delete all of
them when you close your browser session. It's impossible to use most
pages without having cookies enabled (this makes automating things
with web libraries infuriating).

R0b0t1.



Hi R0b0t1,

For "normal browsing" I created a profile for firefox which is privacy
enhanced -- blocking all sorts of things. This profile works half
with the sites I normally visit.
Aliexpress get screwed up when visited using this profile.

So I created a second profile, which I use for Aliexpress only. This
one has only some privacy related things enabled. Aliexpress works --
including poping up this [beep] "Are you new to Aliexpress?" popup.
Cookies are enabled with this profile.



Does it do this on every page load or just the first time you interact with it?



I did the following:
*** Surf to www.aliexpress.com (no popup and no way to search despite
the fact that a search bar is shown.)
*** Click on any product -- product will be displayed and popup pops
up (hence the name), click the popup to remove it. Search bar now works.
*** Click "reload tab"...the whole [beep] starts from the beginning.



I've managed to block something similar using uBlock Origin, but it
was really hard to select it with the GUI picker that creates blocking
rules for you.

The technical term for what the website is using is called a popover
and I remember people talking about blocking them with uBlock Origin
because they are hard to block, but I can't find anything relevant to
this discussion in Google.


As soon as I login into Aliexpress the popup disappears -- now
Aliexpress is satisfied, because tracking my searches is now
personalized.



If you can't find a way to target the overlay with uBlock Origin you
might try looking at https://greasyfork.org/en and using Greasemonkey.
Unfortunately all the premade scripts I could find were simple things
like pricing changes.


Why Greasemonkey is especially use ful in this case?
(this is curiosity -- and NO expression of doubt, R0b0t1! :)



Greasemonkey injects JavaScript onto your webpages based on filter
criteria, so you can effectively do anything your browser can do when
displaying the webpage. Some of the more impressive feats are
reengineered webpages that are better than the original service, most
of them are mundane and only alter a few values on a webpage.

You can also use it for laser-guided adblocking if you need to.
Unfortunately Greasemonkey requires quite a bit of knowledge about
itself, web development, and the page you are trying to modify, so I
can't be of much help apropos.




Its the same reason for why buying via Aliexpress App on a
smartphone/tablet is cheaper than using a PC.
I am using XPrivacy on my Android tablet which shows, blocks
or allows ANY access to permissions like "Get your location"
et cetera -- I instantly deleted that App after I saw, what this
App wants to know.



It's sad to see another website doing this. There's a few that make it
all but impossible to use the service without logging in or supplying
information one way or another. If the creator of the website doesn't
want you to use it, I'm not sure there's a lot that can ultimately be
done about it.

In a similar vein, my phone now displays advertising. The state of
computing has me despondent.


   For your phone: Root it, install XPosed/XPosedInstaller, install XPrivacy, 
install
   Bootmanager, install PreventRunning, install 

Re: [gentoo-user] Re: xorg wiki and graphics drivers

[Urs Schütz]

On 02/14/17 07:30, Raffaele Belardi wrote:

Harry Putnam wrote:

Willie Mattthews  writes:

Not sure I'm following you here.  THe guest addtions come with the
Vbox and I've already installed them.

This is a windows 10 host and the vbox is the one installable on
windows. This is version 5.1.14

Guest additinos have nothing to do with gentoo kernel config.

What I'm asking about it setting up a kernel for gentoo os preparatory
to installing X.  As described in the Xorg gentoo wiki. Vbox vm's need
drivers like any other os.

I'm asking which driver works with the vbox graphics adapter.


x11-drivers/xf86-video-virtualbox
I do not know what you need for the  hi-res frame buffer using kernel KMS.

---snipped---

--
Urs

Re: [gentoo-user] locale : cannot generate it

[Urs Schütz]

On 01/07/17 16:31, Urs Schütz wrote:

On 01/07/17 13:24, Mick wrote:

On Saturday 07 Jan 2017 17:12:25 Alexander Kapshuk wrote:

On Sat, Jan 7, 2017 at 4:59 PM, Helmut Jarausch <jarau...@skynet.be>
wrote:

On 01/07/17 15:52:20, Alexander Kapshuk wrote:

On Sat, Jan 7, 2017 at 4:30 PM, Helmut Jarausch <jarau...@skynet.be>

wrote:

Hi,

hopefully some can help me.

cat /etc/locale.gen

gives

en_US ISO-8859-1
en_US.UTF-8 UTF-8
C.UTF-8
de_DE.UTF-8 UTF-8
de_DE ISO-8859-1
de_DE@euro ISO-8859-15

but

locale-gen  gives errors

 * Generating locale-archive: forcing # of jobs to 1
 * Generating 5 locales (this might take a while) with 1 jobs
 *  (1/5) Generating C.UTF-8 ...

character map file `de_DE' not found: No such file or directory
cannot open locale definition file `C': No such file or directory
[
!! ]

 *  (2/5) Generating de_DE.ISO-8859-1 ...

character map file `de_DE.UTF-8' not found: No such file or directory
cannot open locale definition file `ISO-8859-1': No such file or
directo
[
!! ]

 *  (3/5) Generating de_DE.UTF-8 ...

character map file `de_DE@euro' not found: No such file or directory
cannot open locale definition file `UTF-8': No such file or directory
[
!! ]

 *  (4/5) Generating de_DE.ISO-8859-15@euro ...

character map file `en_US' not found: No such file or directory
cannot open locale definition file `ISO-8859-15': No such file or
direct
[
!! ]

 * Bad entry in locale.gen: 'UTF-8 '; skipping
 *  (5/5) Generating en_US.ISO-8859-1 ...

character map file `en_US.UTF-8' not found: No such file or directory
cannot open locale definition file `ISO-8859-1': No such file or
directo
[
!! ]

 * Generation complete

I've even rebuild glibc (2.24)

/usr/share/i18n/SUPPORTED  contains the lines

de_DE.UTF-8 UTF-8
de_DE ISO-8859-1
de_DE@euro ISO-8859-15
en_US.UTF-8 UTF-8
en_US ISO-8859-1

Many thanks for a hint,
Helmut


What's the full contents of your /etc/locale.gen?


There are only comments above these lines.

Thanks,
Helmut


The reason I asked for the full contents of your /etc/locale.gen is
because users have been known to accidentally make typos when editing
the file in question.

Also, what's the output of 'locale -a' and 'localedef --list-archive'?


There is an incorrect entry in the file.  For example this line:

C.UTF-8

The locale name C. is not listed in /usr/share/i18n/locales/ on my
system.

However, the remaining entries appear to be correct according to the
contents
of /usr/share/i18n/SUPPORTED.  So I am not sure what's gone wrong.



C.UTF-8 does not work this way. If you delete the C.UTF-8 line it works.
You will have a C locale and a POSIX locale even without specifying them
in /etc/locale.gen.

Let me know if you find a way to produce a locale named "C.UTF-8" on
Gentoo.  I would be interested in it, as it seems that newest darktable
from git needs this to compile correctly.


You can generate a "fake" C.UTF-8 locale with localedef:
# localedef -i en_US -f UTF-8 C.UTF-8
and remove it when no longer needed:
# localedef --delete-from-archive C.utf8
Don't blame me for ugly side effects...

Urs

Re: [gentoo-user] locale : cannot generate it

[Urs Schütz]

On 01/07/17 13:24, Mick wrote:

On Saturday 07 Jan 2017 17:12:25 Alexander Kapshuk wrote:

On Sat, Jan 7, 2017 at 4:59 PM, Helmut Jarausch  wrote:

On 01/07/17 15:52:20, Alexander Kapshuk wrote:

On Sat, Jan 7, 2017 at 4:30 PM, Helmut Jarausch 

wrote:

Hi,

hopefully some can help me.

cat /etc/locale.gen

gives

en_US ISO-8859-1
en_US.UTF-8 UTF-8
C.UTF-8
de_DE.UTF-8 UTF-8
de_DE ISO-8859-1
de_DE@euro ISO-8859-15

but

locale-gen  gives errors

 * Generating locale-archive: forcing # of jobs to 1
 * Generating 5 locales (this might take a while) with 1 jobs
 *  (1/5) Generating C.UTF-8 ...

character map file `de_DE' not found: No such file or directory
cannot open locale definition file `C': No such file or directory
[
!! ]

 *  (2/5) Generating de_DE.ISO-8859-1 ...

character map file `de_DE.UTF-8' not found: No such file or directory
cannot open locale definition file `ISO-8859-1': No such file or
directo
[
!! ]

 *  (3/5) Generating de_DE.UTF-8 ...

character map file `de_DE@euro' not found: No such file or directory
cannot open locale definition file `UTF-8': No such file or directory
[
!! ]

 *  (4/5) Generating de_DE.ISO-8859-15@euro ...

character map file `en_US' not found: No such file or directory
cannot open locale definition file `ISO-8859-15': No such file or
direct
[
!! ]

 * Bad entry in locale.gen: 'UTF-8 '; skipping
 *  (5/5) Generating en_US.ISO-8859-1 ...

character map file `en_US.UTF-8' not found: No such file or directory
cannot open locale definition file `ISO-8859-1': No such file or
directo
[
!! ]

 * Generation complete

I've even rebuild glibc (2.24)

/usr/share/i18n/SUPPORTED  contains the lines

de_DE.UTF-8 UTF-8
de_DE ISO-8859-1
de_DE@euro ISO-8859-15
en_US.UTF-8 UTF-8
en_US ISO-8859-1

Many thanks for a hint,
Helmut


What's the full contents of your /etc/locale.gen?


There are only comments above these lines.

Thanks,
Helmut


The reason I asked for the full contents of your /etc/locale.gen is
because users have been known to accidentally make typos when editing
the file in question.

Also, what's the output of 'locale -a' and 'localedef --list-archive'?


There is an incorrect entry in the file.  For example this line:

C.UTF-8

The locale name C. is not listed in /usr/share/i18n/locales/ on my system.

However, the remaining entries appear to be correct according to the contents
of /usr/share/i18n/SUPPORTED.  So I am not sure what's gone wrong.



C.UTF-8 does not work this way. If you delete the C.UTF-8 line it works. 
You will have a C locale and a POSIX locale even without specifying them 
in /etc/locale.gen.


Let me know if you find a way to produce a locale named "C.UTF-8" on 
Gentoo.  I would be interested in it, as it seems that newest darktable 
from git needs this to compile correctly.


Urs

[gentoo-user] HeeksCAD & HeeksCNC under Gentoo, any experiences?

[Urs Schütz]

Hi

HeeksCAD [1] and HeeksCNC [2] are open-source, 3D manufacturing tools 
and surprisingly complete in their feature set (from CAD to G-Code 
generation). I would like to give them a try, and found a way to compile 
them.


What I did:
edit opencascade keywords: =sci-libs/opencascade-6.8.0 ~amd64
emerge opencascade

compile and install libarea:
cd /tmp
git clone https://github.com/Heeks/libarea.git
cd libarea/
mkdir build
cd build
cmake ..
make
sudo make install

compile and install HeeksCAD:
cd /tmp
git clone https://github.com/Heeks/heekscad.git
cd heekscad/
mkdir build
cd build
export LD_LIBRARY_PATH=/usr/lib64/opencascade-6.8.0/ros/lin/lib64
export CASROOT=/usr/lib64/opencascade-6.8.0/ros/lin
cmake ..
make && sudo make install

compile and install HeeksCNC:
cd /tmp
git clone https://github.com/Heeks/heekscnc.git
mkdir heekscnc/build
cd heekscnc/build
export LD_LIBRARY_PATH=/usr/lib64/opencascade-6.8.0/ros/lin/lib64
export CASROOT=/usr/lib64/opencascade-6.8.0/ros/lin
cmake ..
make
sudo make install

To run HeeksCAD:
export LD_LIBRARY_PATH=/usr/lib64/opencascade-6.8.0/ros/lin/lib64; heekscad

What do others think about this 3D CAD / CAM solution?  Has anybody 
experience with HeeksCAD in a real application situation?


Urs

[1] https://github.com/Heeks/heekscad
[2] https://github.com/Heeks/heekscnc

Re: [gentoo-user] extracting text, numbers from screencasts

[Urs Schütz]

On 04/08/16 11:30, Helmut Jarausch wrote:

On 04/08/2016 03:26:53 PM, hw wrote:


Hi,

what would be the best approach to extract data
from a screencast?

The task is to acquire some data from the display of
a GUI program used interactively by a user.  There are
a couple 'fields' (as in "designated areas of the display")
in which the relevant data is being displayed while the
program is being used.  The acquired data needs to be
entered into a mysql database, preferably as soon as
possible.  (The program needs windoze, and the sources
are unavailable :( )


The idea is to make a screen recording and postprocess
the recording with some sort of OCR software.  This might
require using ffmpeg (or the like) to create a single
image from each frame of the recording; then treat each
image with an OCR software to get the interesting data
which can then be entered into the database.

Data to extract is mostly numbers.  The relevant fields
can be expected to be either filled or empty.  The FPS rate
of the recording can be kept reasonably low, like 1 FPS,
or perhaps even less, depending on how frequent the relevant
fields change.

Using tesseract comes to mind, but after reading that

"Tesseract's output will be very poor quality if the input
images are not preprocessed to suit it: Images (especially
screenshots) must be scaled up such that the text x-height
is at least 20 pixels,[12] any rotation or skew must be
corrected or no text will be recognized, low-frequency
changes in brightness must be high-pass filtered, or
Tesseract's binarization stage will destroy much of the
page, and dark borders must be manually removed, or they
will be misinterpreted as characters."[1]

I'm even more doubtful that this would produce usable
results with sufficient reliability.

So what might be the best way to get text/numbers out of
what a program displays?


[1]: https://en.wikipedia.org/wiki/Tesseract_(software)



I can't help with Gentoo.
Try to find an old (free) version of FineReader which runs under wine.
If you do it only occasionally, transfer the image to an Android phone
where there a good and cheap OCR apps, even FineReader.





I had some surprisingly good experience with tesseact in digitizing 
photographed pages of an old book recently. So I gave it a try today 
with a cropped screenshot of thunderbird.


$ convert scrsht.png -type Grayscale -filter point -resize 300% 
-normalize upscaled.png

$ tesseract -l eng upscaled.png out
$ less out.txt

convert is from media-gfx/imagemagick-6.9.0.3
tesseract is app-text/tesseract-3.04.00-r2

Here are my findings:
Any graphical elements sized similar to an character appear as strange 
letters.
Recognition of serif fonts was better than sans-serif fonts, even at 
smaller font size.

Text which can be spell-checked was nearly perfectly recognized.
Gentoo-specific words like "GLSA" and "NVMe" was not correctly recognized.
Selected text (white on blue background) was poorly recognized.
Dates were not recognized correctly.
Times were correctly read.
"convert" time for a initial screenshot size of 956 x 639 pixels was 0.4 
seconds.
"tesseract" time was a little more than 6s on an Intel(R) Core(TM) 
i7-4710MQ CPU @ 2.50GHz, without opencl.

The image conversion and tesseract ocr could easily be scripted.

In short I would say that the following steps would help with tesseract:
Avoid GUI with a lot of graphics.
Try to screenshot just the relevant areas.
Increase GUI font size.
Configure GUI to use a well known serif font, or train tesseract for the 
specific font used.
Configure GUI to use high contrasts, avoid colors which get converted to 
gray.

Tesseract time could be improved by enabling opencl.

I would be interested to hear about your findings with numerical data, 
and which approach finally works for you.


Urs

Re: [gentoo-user] openscad seg fault

[Urs Schütz]

On 03/10/16 02:55, Adam Carter wrote:

I can open the program ok, but when I click on New it seg faults. Strace
of its death below.

I tried recompiling it and all its immediate dependencies. How do i
troubleshoot this?

Cheers.

Hi Adam

openscad is working fine here. I propose comparing our versions. Here is 
mine:


$ equery depgraph openscad
 * Searching for openscad ...

 * dependency graph for media-gfx/openscad-2015.03
 `--  media-gfx/openscad-2015.03  ~amd64
   `--  media-gfx/opencsg-1.3.2-r1  (media-gfx/opencsg) ~amd64
   `--  sci-mathematics/cgal-4.3-r1  (sci-mathematics/cgal) amd64
   `--  dev-qt/qtcore-4.8.6-r2  (dev-qt/qtcore) amd64
   `--  dev-qt/qtgui-4.8.6-r4  (dev-qt/qtgui) amd64
   `--  dev-qt/qtopengl-4.8.6-r1  (dev-qt/qtopengl) amd64
   `--  dev-cpp/eigen-3.2.6  (dev-cpp/eigen) ~amd64
   `--  dev-libs/gmp-6.0.0a  (dev-libs/gmp) amd64
   `--  dev-libs/mpfr-3.1.3_p4  (dev-libs/mpfr) amd64
   `--  dev-libs/boost-1.56.0-r1  (dev-libs/boost) amd64
   `--  x11-libs/qscintilla-2.8.4-r1  (x11-libs/qscintilla) amd64
[ media-gfx/openscad-2015.03 stats: packages (11), max depth (1) ]

Urs

Re: [gentoo-user] /usr/bin/python: no supported Python implementation variant found!

[Urs Schütz]

On 12/26/15 13:31, cov...@ccs.covici.com wrote:

Hi.  I am doing my world update, and although it has noe finished, I am
now getting the message in the subject line if I try to execute any
python script!  I found a gentoo topic which said to emerge python-exec,
but it has already done so in the update, and no joy.

Thanks in advance for any ideas.



Please post the output of
eselect python list

Re: [gentoo-user] java virtual machine

[Urs Schütz]

On 12/11/15 20:47, Urs Schütz wrote:

On 12/11/15 15:12, Frederico Moraes Ferreira wrote:

Has anybody happen to know which java distribution, except the oracle
one, will carry javaws?
Thanks,
Fred


javaws was working here with icedtea-bin-7.



Correction: dev-java/icedtea-web seems to be the package providing 
javaws for icedtea.


--
Urs

Re: [gentoo-user] java virtual machine

[Urs Schütz]

On 12/11/15 15:12, Frederico Moraes Ferreira wrote:

Has anybody happen to know which java distribution, except the oracle
one, will carry javaws?
Thanks,
Fred


javaws was working here with icedtea-bin-7.

--
Urs

Re: [gentoo-user] java virtual machine

[Urs Schütz]

On 12/10/15 14:56, Frederico Moraes Ferreira wrote:

Hi List,


Hi Fred


I'm trying to set the java virtual machine as follows:


mephisto ~ # java-config --list-available-vms
The following VMs are available for generation-2:
*)Oracle JDK 1.8.0.66 [oracle-jdk-bin-1.8]

mephisto ~ # java-config --set-system-vm oracle-jdk-bin-1.8
Now using oracle-jdk-bin-1.8 as your generation-2 system JVM

ferreirafm@mephisto ~ $ java-config --set-user-vm oracle-jdk-bin-1.8
Now using oracle-jdk-bin-1.8 as your user JVM
#

Well, when I try to install some java application, it issues that no
virtual machine
is in the PATH (as show bellow).


ferreirafm@mephisto ~/Downloads $ sh ./install-jalview.bin
Preparing to install...
Extracting the installation resources from the installer archive...
Configuring the installer for this system's environment...
No Java virtual machine could be found from your PATH
environment variable.  You must install a VM prior to
running this program.
#

I know I can set PATH in the .bashrc, but shouldn't
" java-config --set-user-vm" do the work?


I do not know the answer to your question. But here is how I switch java 
virtual machines:


$ eselect java-vm list
Available Java Virtual Machines:
  [1]   icedtea-bin-7  system-vm
  [2]   oracle-jre-bin-1.7

$ eselect java-vm set user 2
or
$ sudo eselect java-vm set system 2

Urs

Re: [gentoo-user] amavisd: running or not running???

[Urs Schütz]

On 04/05/15 14:57, Jarry wrote:

Hi Gentoo-users,

I have this strange problem: I can not start amavisd because
it is running, and at the same time I can not stop amavisd
because it is not running. How's that possible?

vs4 ~ # /etc/init.d/amavisd start
  * WARNING: amavisd has already been started
vs4 ~ # /etc/init.d/amavisd stop
  * Stopping amavisd-new ...
The amavisd daemon is not running   [ !! ]
  * ERROR: amavisd failed to stop
vs4 ~ # /etc/init.d/amavisd start
  * WARNING: amavisd has already been started
vs4 ~ # ps -e | grep amavis
vs4 ~ #

How can I fix this mess?

Jarry



/etc/init.d/amavisd zap

Urs

Re: [gentoo-user] Re: Please explain X fonts?

[Urs Schütz]

On 04/01/15 21:03, lee wrote:

Urs Schütz u.sch...@bluewin.ch writes:


On 03/29/15 06:23, lee wrote:

walt w41...@gmail.com writes:


On 03/26/2015 07:15 PM, Walter Dnes wrote:

snip all questions I can't answer



As to fonts, I highly recommend Source Code Pro and Source Sans Pro.
They finally resolved my long search for good fonts.  Unfortunately,
they don't come with Gentoo.  I copied them over from a Fedora
installation, so you might be able to extract them from their RPMs.

I haven't been able to create them from their sources, though.  It
requires some special program which didn't work.  Maybe someone knows
how to do that?



No need to extract them, they come with Gentoo unstable

  $ eix source-pro
[I] media-fonts/source-pro


Cool, thank you, I'll try that tomorrow!

Is that both fonts or only Source Code Pro?




It is both fonts, in different weights.

Re: [gentoo-user] Re: Please explain X fonts?

[Urs Schütz]

On 03/29/15 06:23, lee wrote:

walt w41...@gmail.com writes:


On 03/26/2015 07:15 PM, Walter Dnes wrote:

snip all questions I can't answer



As to fonts, I highly recommend Source Code Pro and Source Sans Pro.
They finally resolved my long search for good fonts.  Unfortunately,
they don't come with Gentoo.  I copied them over from a Fedora
installation, so you might be able to extract them from their RPMs.



I haven't been able to create them from their sources, though.  It
requires some special program which didn't work.  Maybe someone knows
how to do that?



No need to extract them, they come with Gentoo unstable

 $ eix source-pro
[I] media-fonts/source-pro
 Available versions:  (~)20121216^bs (~)20130316^bs (~)20141211^bs 
{X cjk}

 Installed versions:  20141211^bs(17:20:12 03/29/15)(X -cjk)
 Homepage:http://adobe-fonts.github.io/source-sans-pro 
http://adobe-fonts.github.io/source-serif-pro 
http://adobe-fonts.github.io/source-code-pro
 Description: Adobe's open source typeface family designed 
for UI environments


snip

Urs

Re: [gentoo-user] [offtopic] GNU Root Gentoo on Android

[Urs Schütz]

On 03/16/15 09:08, Helmut Jarausch wrote:

Hi,

I've installed GNU Root Gentoo on Android from Google Play on my Android-4.4.2 
device.
Does anybody know how to use it.

Many thanks for a hint,
Helmut





Install GNURoot also. GnuRoot is necessary to unpack and start GNURoot 
Gentoo.

Just follow the screenshots of GNURoot on Google Play.

Urs

Re: [gentoo-user] opengl: missing symlink target for header

[Urs Schütz]

On 02/13/15 16:19, Nicolas Sebrecht wrote:


   Hi guys,

If you have mesa and eselect-opengl-1.3.X installed, could you please
tell me if the symlink /usr/include/GL/glext.h is broken for you?

Thanks,



Valid symlink here:

$ ls -la /usr/include/GL/glext.h
lrwxrwxrwx 1 root root 44 Feb  4 15:52 /usr/include/GL/glext.h - 
../../lib64/opengl/global/include/GL/glext.h


$ eselect opengl list
Available OpenGL implementations:
  [1]   nvidia *
  [2]   xorg-x11

$ eselect mesa list
64bit i915 (Intel 915, 945)
  [1]   classic
  [2]   gallium *
64bit i965 (Intel GMA 965, G/Q3x, G/Q4x, HD)
  [1]   classic *
64bit r300 (Radeon R300-R500)
64bit r600 (Radeon R600-R700, Evergreen, Northern Islands)
64bit sw (Software renderer)
  [1]   classic
  [2]   gallium *
32bit i915 (Intel 915, 945)
  [1]   classic
  [2]   gallium *
32bit i965 (Intel GMA 965, G/Q3x, G/Q4x, HD)
  [1]   classic *
32bit r300 (Radeon R300-R500)
  [1]   gallium *
32bit r600 (Radeon R600-R700, Evergreen, Northern Islands)
  [1]   gallium *
32bit sw (Software renderer)
  [1]   classic
  [2]   gallium *

$ eix -I mesa
[ ... ]
media-libs/mesa
[ ... ]
 Installed versions:  10.2.8(20:57:55 01/10/15)(bindist classic 
dri3 egl gallium gbm llvm nptl udev xa xvmc -debug -gles1 -gles2 -opencl 
-openmax -openvg -osmesa -pax_kernel -pic -r600-llvm-compiler -selinux 
-vdpau -wayland ABI_MIPS=-n32 -n64 -o32 ABI_PPC=-32 -64 
ABI_S390=-32 -64 ABI_X86=64 -32 -x32 KERNEL=linux -FreeBSD 
VIDEO_CARDS=intel -freedreno -i915 -i965 -ilo -nouveau -r100 -r200 
-r300 -r600 -radeon -radeonsi -vmware)


$ eix -I eselect-opengl
[I] app-admin/eselect-opengl
[ ... ]
 Installed versions:  1.2.7(21:12:14 09/05/14)

[gentoo-user] Slow startx - Why does hostname -f hang?

[Urs Schütz]

Hi list

While hunting down slow startx times (12-16s instead the usual 2-5s) I 
found that hostname -f tries to resolve the hostname. This is a slow 
process (timeout?):


urs@cadd ~ $ time hostname -v
gethostname()=`cadd'
cadd

real0m0.001s
user0m0.000s
sys 0m0.001s

urs@cadd ~ $ time hostname -v -f
gethostname()=`cadd'
Resolving `cadd' ...
Result: h_name=`cadd'
Result: h_addr_list=`127.0.0.1'
cadd

real0m10.011s
user0m0.000s
sys 0m0.001s

urs@cadd ~ $ man hostname
...snip...
 -f, --fqdn, --long
  Display the FQDN (Fully Qualified Domain Name). A FQDN 
consists
  of  a  short  host  name and the DNS domain name. Unless 
you are
  using bind or NIS for host lookups you can change the 
FQDN  and
  the  DNS  domain  name  (which  is  part  of  the  FQDN) 
 in the

  /etc/hosts file.
...snip...

My /etc/hosts.conf orders hosts before bind:
urs@cadd ~ $ grep order  /etc/host.conf
# recognized are order, trim, mdns, multi, nospoof, spoof, and reorder.
order hosts, bind

I do not run any NIS or bind services.

I solved the slow startx by replacing hostname -f by hostname in the 
/usr/bin/startx script, but still feel that I'm missing the real cause 
for the slow hostname lookup.


I do not have a DNS domain name definition in /etc/hosts.
I do run networkmanager.
Any hints where to search?

What is the recommended way for /etc/hosts? I'm at a simple home 
network, behind a NAT cable modem, and do not have a dns domain name.


Thanks for any hints.
Urs

Re: [gentoo-user] Slow startx - Why does hostname -f hang?

[Urs Schütz]

On 01/04/15 15:20, Mick wrote:

On Sunday 04 Jan 2015 16:06:50 Urs Schütz wrote:

Hi list

While hunting down slow startx times (12-16s instead the usual 2-5s) I
found that hostname -f tries to resolve the hostname. This is a slow
process (timeout?):

urs@cadd ~ $ time hostname -v
gethostname()=`cadd'
cadd

real0m0.001s
user0m0.000s
sys 0m0.001s

urs@cadd ~ $ time hostname -v -f
gethostname()=`cadd'
Resolving `cadd' ...
Result: h_name=`cadd'
Result: h_addr_list=`127.0.0.1'
cadd

real0m10.011s
user0m0.000s
sys 0m0.001s

urs@cadd ~ $ man hostname
...snip...
   -f, --fqdn, --long
Display the FQDN (Fully Qualified Domain Name). A FQDN
consists
of  a  short  host  name and the DNS domain name. Unless
you are
using bind or NIS for host lookups you can change the
FQDN  and
the  DNS  domain  name  (which  is  part  of  the  FQDN)
   in the
/etc/hosts file.
...snip...

My /etc/hosts.conf orders hosts before bind:
urs@cadd ~ $ grep order  /etc/host.conf
# recognized are order, trim, mdns, multi, nospoof, spoof, and reorder.
order hosts, bind

I do not run any NIS or bind services.

I solved the slow startx by replacing hostname -f by hostname in the
/usr/bin/startx script, but still feel that I'm missing the real cause
for the slow hostname lookup.

I do not have a DNS domain name definition in /etc/hosts.
I do run networkmanager.
Any hints where to search?

What is the recommended way for /etc/hosts? I'm at a simple home
network, behind a NAT cable modem, and do not have a dns domain name.

Thanks for any hints.
Urs


In my /etc/hosts I have something like this:

# IPv4 and IPv6 localhost aliases
127.0.0.1   cad.homeLAN localhost cad
::1 cad.homeLAN localhost cad

See if this solves your problem.

PS. I remember a thread in this M/L about the correct way to configure a
domain name and why how the Gentoo Handbook was wrong.  I think there was a
bug opened about it, too.



Setting up /etc/hosts exactly as above did resolve the slow hostname -f 
lookup.


urs@cadd ~ $ time hostname -v -f
gethostname()=`cadd'
Resolving `cadd' ...
Result: h_name=`cadd.homeLAN'
Result: h_aliases=`localhost'
Result: h_aliases=`cadd'
Result: h_addr_list=`::1'
cadd.homeLAN

real0m0.001s
user0m0.000s
sys 0m0.000s

:-) Thanks for your help.
Urs

Re: [gentoo-user] SOLVED: Slow startx - Why does hostname -f hang?

[Urs Schütz]

On 01/04/15 15:27, waben...@gmail.com wrote:

Am Sonntag, 04.01.2015 um 14:06
schrieb Urs Schütz u.sch...@bluewin.ch:


Hi list

While hunting down slow startx times (12-16s instead the usual 2-5s)
I found that hostname -f tries to resolve the hostname. This is a
slow process (timeout?):


Normally this is a fast process. See my results below.


urs@cadd ~ $ time hostname -v
gethostname()=`cadd'
cadd

real0m0.001s
user0m0.000s
sys 0m0.001s


user@puter ~ $ time hostname -v
gethostname()=`puter'
puter

real0m0.003s
user0m0.000s
sys 0m0.000s


urs@cadd ~ $ time hostname -v -f
gethostname()=`cadd'
Resolving `cadd' ...
Result: h_name=`cadd'
Result: h_addr_list=`127.0.0.1'

^
Does your computer only have an IP address for your localhost?


cadd

real0m10.011s
user0m0.000s
sys 0m0.001s


user@puter ~ $ time hostname -v -f
gethostname()=`puter'
Resolving `puter' ...
Result: h_name=`puter.local'
Result: h_aliases=`puter'
Result: h_addr_list=`192.168.44.32'
puter.local

real0m0.005s
user0m0.003s
sys 0m0.003s


What is the recommended way for /etc/hosts? I'm at a simple home
network, behind a NAT cable modem, and do not have a dns domain name.


What is the content of your /etc/hosts file?
This is my hostfile:

127.0.0.1   localhost
::1 localhost
192.168.44.32   puter.local puter

Regards
wabe




Hi Wabe

IP changes dynamically, is assigned by Networkmanager with dhclient use 
flag.
I changed /etc/hosts as Mick/Michael pointed out in an other reply, and 
this solved the slow response. Here the relevant part of the corrected, 
working /etc/hosts:


# IPv4 and IPv6 localhost aliases
127.0.0.1   cadd.homeLAN localhost
::1 cadd.homeLAN localhost cadd

Thanks for your time looking into it and the hints.
Urs