One year ago I have posted a gentoo ebuild for the devolo dlan cockpit software in the article devolo-dlan-cockpit-5.1.6.2 with gentoo. In the meanwhile Devolo has published a newer version. The new version 5.2.0.185 feels more or less the same as the old one, but most probably some bugs have been fixed.
The main purposes of devolo-dlan-cockpit are:
Firmware upgrades for the network adapters
Monitoring the performance
Configuring the network adapters
Firmware upgrades are more or less plug and play. One has to click the Updates-Button and everything else happens automagically. Monitoring the network performance with devolo-dlan-cockpit is of major interest, since it allows one to try out different wall sockets for better performance with nearly zero effort. If one gets poor performance it can be of major impact just to use another wall socket in the same room.
Dlan-cockpit is available for most common operating systems. However, the only Linux distribution, Devolo supports right now is Ubuntu Linux. Most probably, the package will also work with Debian. Allthough these are binary packages, the application can also be used with Gentoo Linux. For this two binaries have to be executed /usr/bin/devolonetsvc, the service daemon and /opt/devolo/dlancockpit/bin/dlancockpit, the frontend application which depends on the service. Usually devolonetsvc is being started by an initrd script, but the one included in the package is not going to work with gentoo, so just start it manually as root user. If one really needs it that often, an own startup script or systemd configuration can be written. Below you can see a screenshot of the application.
Screenshot of devolo dlan-cockpit 5.2.0.185
The Gentoo way
For gentoo users here is my overlay including the updated devolo-dlan-cockpit ebuild:
devolo-dlan-cockpit-5.2.0.185_overlay.tar.gz (4042 downloads )
. It also contains an adobe-air-runtime ebuild as necessary dependency. The adobe-air-runtime ebuild has been taken from steam-overlay. Download the overlay and extract it in /var/db/repos/local. Be sure to include a file local.conf in your /etc/portage/repos.conf directory with the following content:
[local]
location = /var/db/repos/local
Then emerge devolo-dlan-cockpit and configure your dlan adapters using your gentoo box.
The Resin 3D DLP printer Wanhao Duplicator 7 originally has been offered with the free slicing software Creation Workshop available for download.1 Later on Wanhao seems to have bought the software company behind Creation Workshop and have developed new version, Wanhao D7 Workshop. The original download locations for the free software vanished. Users who have bought the printer after November 2018 were able to get a free license key. Others, who bought it before or obtained a used printer, had to buy one. Fortunately a user made the binaries of the original free opensource version available for download again at dropbox.2
Creation Workshop has been developed using .Net C# and can be used with Mono with Linux. Unfortunately this version of the Software does not work with mono on Linux depending on graphics hardware. There also has been a report of Creation Workshop crashing on the Raspberry Pi.3 45 From what I can tell it works with Intel graphics boards, but crashes with NVIDIA graphics boards. When running Creation Workshop with nvidia-drivers, it shortly opens a black window and then crashes with the console output below:
X11 Error encountered:
Error: BadMatch (invalid parameter attributes)
Request: 151 (5)
Resource ID: 0x840006E
Serial: 1568
Hwnd: Hwnd, Mapped:False ClientWindow:0x840006E, WholeWindow:0x840006D, Zombie=False, Parent:[Hwnd, Mapped:True ClientWindow:0x8400064, WholeWindow:0x8400063, Zombie=False, Parent:[Hwnd, Mapped:True ClientWindow:0x8400062, WholeWindow:0x8400061, Zombie=False, Parent:[Hwnd, Mapped:True ClientWindow:0x8400060, WholeWindow:0x840005F, Zombie=False, Parent:[Hwnd, Mapped:True ClientWindow:0x840005E, WholeWindow:0x840005D, Zombie=False, Parent:[Hwnd, Mapped:True ClientWindow:0x840005C, WholeWindow:0x840005B, Zombie=False, Parent:[Hwnd, Mapped:True ClientWindow:0x840005A, WholeWindow:0x8400059, Zombie=False, Parent:[Hwnd, Mapped:True ClientWindow:0x8400058, WholeWindow:0x8400057, Zombie=False, Parent:[<null>]]]]]]]]
Control: UV_DLP_3D_Printer.GUI.Controls.ctlGL at System.Environment.get_StackTrace () [0x00000] in <a6a5ba8fc13a4797a32a4dc4ae25c772>:0
at System.Windows.Forms.XplatUIX11.HandleError (System.IntPtr display, System.Windows.Forms.XErrorEvent& error_event) [0x00000] in <f8f55e5d29ae400f8589d196b5502445>:0
at OpenTK.Platform.X11.Glx.MakeCurrent (System.IntPtr , System.IntPtr , System.IntPtr ) [0x00000] in <6e87929761c543a4bfb6d5acaea62619>:0
at OpenTK.Platform.X11.Glx.MakeCurrent (System.IntPtr display, System.IntPtr drawable, OpenTK.ContextHandle context) [0x00000] in <6e87929761c543a4bfb6d5acaea62619>:0
at OpenTK.Platform.X11.X11GLContext.MakeCurrent (OpenTK.Platform.IWindowInfo window) [0x00000] in <6e87929761c543a4bfb6d5acaea62619>:0
at OpenTK.Graphics.GraphicsContext.MakeCurrent (OpenTK.Platform.IWindowInfo window) [0x00000] in <6e87929761c543a4bfb6d5acaea62619>:0
at OpenTK.GLControl.MakeCurrent () [0x00000] in <1b9440a0f8834418a8d369f909728a32>:0
at OpenTK.GLControl.OnHandleCreated (System.EventArgs e) [0x00000] in <1b9440a0f8834418a8d369f909728a32>:0
at System.Windows.Forms.Control.WmCreate (System.Windows.Forms.Message& m) [0x00000] in <f8f55e5d29ae400f8589d196b5502445>:0
at System.Windows.Forms.Control.WndProc (System.Windows.Forms.Message& m) [0x00000] in <f8f55e5d29ae400f8589d196b5502445>:0
at System.Windows.Forms.ScrollableControl.WndProc (System.Windows.Forms.Message& m) [0x00000] in <f8f55e5d29ae400f8589d196b5502445>:0
...
From the output there seems to be a problem with OpenTK.Graphics, which turns out to be an incompatibility of the bundled version of the OpenTK .Net wrappers libraries bundled with this version of Creation Workshop. To fix this problem one can download newer versions of the wrapper dlls, which work together with nvidia-drivers, from nuget.org.
After downloading, the dlls can be extracted from the nupk files using unzip. Then replace the the files OpenTK.dll and OpenTK.GLControl.dll in the Creation Workshop directory with the newer ones from the nuget packages.
Creation Workshop-1.0.0.75 running on Linux with NVIDIA Graphics
Afterwards Creation Workshop can simply be started from the terminal:
This way Creation Workshop has been run on Gentoo Linux on X86_64 architecture and on a NVIDIA Jetsons TX2 board with ARM64 architecture. Other platforms like the Raspberry, reported to be problematic, might work as well.
Quite a while ago I have posted a gentoo ebuild for the devolo dlan cockpit software in the article devolo-dlan-cockpit-4.2.3 with gentoo. After having purchased some devolo Magic 2 PowerLan adapters to extend the existing Devolo dlan 1200 network, I have found out that the old version 4.3.3 of devolo-dlancopit does not support the new Magic 2 adapters. The Magic 2 adapters turned out to be incompatible with the dlan 1200 adapters anyway, but that is a different story. Looks like replacing the existing adapters is the next step. At least the newer version of devolo-dlan-cockpit supports both adapter types.
Devolo offers the application devolo-dlan-cockpit for download. The main purposes of devolo-dlan-cockpit are:
Firmware upgrades for the network adapters
Monitoring the performance
Configuring the network adapters
Firmware upgrades are more or less plug and play. One has to click the Updates-Button and everything else happens automagically. Monitoring the network performance with devolo-dlan-cockpit is of major interest, since it allows one to try out different wall sockets for better performance with nearly zero effort. If one gets poor performance it can be of major impact just to use another wall socket in the same room.
Screenshot of devolo dlan-cockpit 5.1.6.2
Dlan-cockpit is available for most common operating systems. However, the only Linux distribution, Devolo supports right now is Ubuntu Linux. Most probably, the package will also work with Debian. Allthough these are binary packages, the application can also be used with Gentoo Linux. For this two binaries have to be executed /usr/bin/devolonetsvc, the service daemon and /opt/devolo/dlancockpit/bin/dlancockpit, the frontend application which depends on the service. Usually devolonetsvc is being started by an initrd script, but the one included in the package is not going to work with gentoo, so just start it manually as root user. If one really needs it that often, an own startup script or systemd configuration can be written. Below you can see a screenshot of the application.
The Gentoo way
For gentoo users here is my overlay including the updated devolo-dlan-cockpit ebuild:
devolo-dlan-cockpit-5.1.6.2_overlay.tar.gz (4358 downloads )
. It also contains an adobe-air-runtime ebuild as necessary dependency. The adobe-air-runtime ebuild has been taken from steam-overlay. Download the overlay and extract it in /usr/local/portage. Be sure to include the following line in your /etc/make.conf:
PORTDIR_OVERLAY=”/usr/local/portage”
Then emerge devolo-dlan-cockpit and configure your dlan adapters using your gentoo box.
Recently I have found out, that the version 4.2.3 of devolo-dlancopit, for which I have posted a gentoo ebuild in the article devolo-dlan-cockpit-4.2.3 with gentoo, does not work fully anymore. It fails downloading firmware updates for the Devolo dlan 1200 PowerLAN adapters. Most probably the download urls for firmware updates have changed recently.
Devolo offers the application devolo-dlan-cockpit for download. The main purposes of devolo-dlan-cockpit are:
Firmware upgrades for the network adapters
Monitoring the performance
Configuring the network adapters
Firmware upgrades are more or less plug and play. One has to click the Updates-Button and everything else happens automagically. Monitoring the network performance with devolo-dlan-cockpit is of major interest, since it allows one to try out different wall sockets for better performance with nearly zero efforts. If one gets poor performance it can be of major impact just to use another wall socket in the same room.
Dlan-cockpit is available for most common operating systems. However, the only Linux distribution, they support right now is Ubuntu Linux. Most probably, the package will also work with Debian. Allthough these are binary packages, the application can also be used with Gentoo Linux. For this two binaries have to be executed /usr/bin/devolonetsvc, the service daemon and /opt/devolo/dlancockpit/bin/dlancockpit, the frontend application which depends on the service. Usually devolonetsvc is being started by an initrd script, but the one included in the package is not going to work with gentoo, so just start it manually as root user. If one really needs it that often, an own startup script or systemd configuration can be written. Below you can see a screenshot of the application.
Screenshot of devolo dlan-cockpit 4.3.3
The Gentoo way
For gentoo users here is my overlay including the updated devolo-dlan-cockpit ebuild: [download#99]. It also contains an adobe-air-runtime ebuild as necessary dependency. The adobe-air-runtime ebuild has been taken from steam-overlay. Download the overlay and extract it in /usr/local/portage. Be sure to include the following line in your /etc/make.conf:
PORTDIR_OVERLAY=”/usr/local/portage”
Then emerge devolo-dlan-cockpit and update your dlan adapters again using your gentoo box.
Recently I have started using Devolo dlan 1200 PowerLAN adapters. With these one can get a network with up to 1Gbps without having to install additional wires by using the power lines. Of course the 1Gbps are optimum values under perfect conditions. Practically one gets 100 Mbps to 600 Mbps, but this is enough for most purposes.
Devolo offers the application devolo-dlan-cockpit for download. The main purposes of devolo-dlan-cockpit are:
Firmware upgrades for the network adapters
Monitoring the performance
Configuring the network adapters
Firmware upgrades are more or less plug and play. One has to click to click the Updates-Button and everything else happens automagically. Monitoring the network performance with devolo-dlan-cockpit is of major interest, since it allows one to try out different wall sockets for better performance with nearly zero efforts. If one gets poor performance it can be of major impact just to use another wall socket in the same room.
Dlan-cockpit is available for most common operating systems. However, the only Linux distribution, they support right now is Ubuntu Linux. Most probably, the package will also work with Debian. Allthough these are binary packages, the application can also be used with Gentoo Linux. For this two binaries have to be executed /usr/bin/devolonetsvc, the service daemon and /opt/devolo/dlancockpit/bin/dlancockpit, the frontend application which depends on the service. Usually devolonetsvc is being started by an initrd script, but the one included in the package is not going to work with gentoo, so start just start it manually as root user. If one really needs it that often, an own startup script or systemd configuration can be written. Below you can see a screenshot of the application.
Screenshot of devolo dlan-cockpit
The Gentoo way
For gentoo users here is my overlay including the devolo-dlan-cockpit ebuild:
devolo-dlan-cockpit-4.2.3_overlay.tar.gz (5021 downloads )
. It also includes an adobe-air-runtime ebuild as necessary dependency. The adobe-air-runtime ebuild has been taken from steam-overlay. Download the overlay and extract it in /usr/local/portage. Be sure to include the following line in your /etc/make.conf:
PORTDIR_OVERLAY=”/usr/local/portage”
Then emerge devolo-dlan-cockpit and monitor your network nodes using your gentoo box.
Some months ago I got my brand new LG 55LA6608 3D TV. Of course I wanted to watch the 3d photos taken with the Fujifilm Finepix Real 3D camera with it. The images taken by the camera are being stored using the MPO file format. These images consist of two jpeg images and some metadata inside the exif header inside the MPO container. According to the specification the television is capable of playing this file format, which works fine when using in example an USB-stick. However, it is desireable to watch the images using a network connection, for example when the files are stored on a linux server.
For displaying videos or images from a server this and other television devices use the DLNA protocol, which is implemented by by various linux services like minidlna or ushare. None of the tested ones was capable to present the MPO files to the TV. The solution to enable ushare to do this is quite simple. The MPO mime type has to be added to ushares supported file formats. This can be done by adding the line
{ “mpo”, UPNP_PHOTO, “http-get:*:image/mpo:”},
to the MIME_TYPE_LIST array in mime.c. This has been verified to work with the ushare-1.1a. For convenience one can download the patch for this from here:
One can download the ushare sources from SourceForge. After downloading patch the ushare sources with the mpo-patch and build it. Build and usage instructions can be found in the readme file included in the ushare download from SourceForge. Do not forget to run ./configure –enable-dlna before running make for use with recent devices like the mentioned LG TV.
As usually, for gentoo users there is a more easy way: Create the directory
/etc/portage/patches/media-video/ushare/
and place the patch file in it. Make sure that the dlna USE-flag is set in /etc/make.conf or /etc/portage/package.use. Afterwards emerge ushare again and enjoy watching your 3D MPO images stored on your linux box using your TV.
In the article Flightgear with quad buffered stereo I have written about how to get quad buffered stereo to work with the famous flight simulator FlightGear. Recently FlightGear-2.8.0 has been released. The problem with quad buffered stereo still persists with FlightGear-2.8.0 .
One expects to enable stereoscopic mode in FlightGear starting it with the following line:
When starting flightgear this way, one gets the following console output and no stereoscopic view:
Warning: detected OpenGL error ‘invalid operation’ after RenderBin::draw(,)
Getting FlightGear to work with quad-buffered stereo
The reason for the above error message and the resulting broken stereo mode is, that the stereo context does not get initialized properly. The details are described here: Flightgear with quad buffered stereo. Unfortunately the patch I proposed in the mentioned post does not work for flightgear-2.8.0. However, the good news is, it only required a slight modification, the WindowBuilder.cxx file no longer is in src/Main, but in the src/Viewer directory. You can download the new patch from here:
flightgear-2.8.0-stereoscopic.patch (2582 downloads )
Hopefully the patch finds its way into the next flightgear release.
As usual for quad buffered stereo, you have to use a professional graphics board that supports quad buffered stereo, like a NVIDIA Quadro FX or a Ati FireGL and proper display hardware, like shutter glasses, a HMD or a stereoscopic projection system, to benefit from it. To use the quad buffered stereo mode start flightgear with the environment variables mentioned above. Afterwards you probably have to enable quad buffered stereo mode by selecting the Stereoscopic View Options Item in the the View menu.
The Gentoo way
For gentoo users I have created an overlay. Like the previous one it contains patches and modified ebuilds for flightgear with working quad buffer support. You may get the overlay from here:
flightgear-2.8.0 overlay (2596 downloads )
Download the overlay and extract it in /usr/local/portage. Be sure to include the following line in your /etc/make.conf:
PORTDIR_OVERLAY=”/usr/local/portage”
Then emerge flightgear and enjoy it in three dimensions.
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