Starting with the 2.6.36 kernel, tuxonice has been removed from zen-sources. The latest tuxonice patch that is available is for the linux kernel 3.0.  So I patched the zen-stable-3.0 sources with tuxonice. Hopefully a patch for more recent kernel versions will be available soon.

Suspend to RAM works with this kernel, at least on my Dell Precison M65 and my Desktop, as well as suspend to disk does.

To get things to work, download the zen-stable-3.0 kernel tree from zen-kernel.org and extract it. Afterwards download the tuxonice patch from tuxonice.net and apply it. For getting the zcache feature, to work you have to download and apply this patch: [download#74] The zcache feature doubles RAM efficiency while providing a significant performance boosts on many workloads.  The patch has been extracted from vserver-sources-2.3.2.5 with working zcache feature.  After applying the patch  you can continue with the standard kernel building process. The zcache feature is located under staging drivers in the kernel tree and depends on the cleancache feature, which is located  under processor types and features. To enable the zcache feature, you have to pass the zcache keyword to your kernel, in example in your grub.conf.

Example: kernel /bzImage panic=60 root=/dev/hda3 zcache

For Gentoo users there is a more easy way: Download my modified overlay from [download#76] and extract it in /usr/local/portage. Be sure to include the following line in your /etc/make.conf:

PORTDIR_OVERLAY=”/usr/local/portage”

If you want to use tuxonice include tuxonice in your USE-flags. Then emerge zen-sources and build the kernel as you wish.

Tuxonice is not officially supported in current zen-sources. So If you’re using the files above, don’t report any bugs to zen-sources.org. You are on your own.

For my Precision M65 I used the following kernel config: [download#75]

For more information on the zen-sources patchset see www.zen-sources.org.

best regards

Jürgen

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Posted in gentoo, kernel, linux, zen-sources | No Comments »

Starting with kernel version 2.6.36 tuxonice has been removed from the zen-sources patchset, the high-performance linux-kernel for desktops. With the new zen-sources-2.6.38_p20110510 ebuild the maintainer of the zen-sources ebuilds started to include tuxonice into the zen-sources ebuilds in gentoos portage tree.  Now the reliable suspend mechanism, tuxonice is known for, is again easily available on genttoo systems with zen-.sources.  Thanks Markos!

A Gentoo user now can choose if he wants to have zen-sources with tuxonice or not. To get zen sources with tuxonice one just has to include the tuxonice USE-flag into his /etc/make.conf and emerge zen-sources afterwards. Then one has to configure and compile the kernel as usual.

Jürgen

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Starting with 2.6.36 tuxonice has been removed from zen-sources again. A few days ago the zen-sources-2.6.38_p20110501 ebuild appeared in the gentoo portage tree. So I patched the brand new zen-sources-2.6.38_p20110501 with tuxonice. The official 2.6.38 tuxonice patch from tuxonice.net has worked out of the box, this time.

Suspend to RAM works at least on my Dell Precison M65 and my Desktop, as well as suspend to disk does. Well, I have to mention that I again tried to use BFS, the brain fuck scheduler, to increase (felt) performance. This time the brain fuck scheduler worked well with tuxonice and did not result in the crash during atomic copy, I described in zen-sources-2.6.37_p20110325 with tuxonice.  Thus  I did not have to fall back to the CFS scheduler and automatic control groups as I had to with 2.6.37. However this is also an alternative to the brain fuck scheduler.

Download the zen-sources-2.6.38_p20110501 patch here. Then apply the patch to the vanilla kernel sources avalable from kernel.org. Afterwards download the tuxonice patch from tuxonice.net and apply it. Now you can continue with the standard kernel building process.

For Gentoo users there is a more easy way: Download my modified overlay from [download#69] and extract it in /usr/local/portage. Be sure to include the following line in your /etc/make.conf:

PORTDIR_OVERLAY=”/usr/local/portage”

If you want to use tuxonice include toi in your USE-flags. Then emerge zen-sources and build the kernel as you wish.

Tuxonice is not officially supported in current zen-sources. So If you’re using the files above, don’t report any bugs to zen-sources.org. You are on your own.

For my Precision M65 I used the following kernel config: [download#70]

For more information on the zen-sources patchset see www.zen-sources.org.

best regards

Jürgen

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Posted in kernel, linux | 1 Comment »

Starting with 2.6.36 tuxonice has been removed from zen-sources again. A few days ago the zen-sources-2.6.37_p20110325 ebuild appeared in the gentoo portage tree.  Since I did not want to stick to my old 2.6.35 kernel I patched the brand new zen-sources-2.6.37_p20110325 with tuxonice. The official tuxonice patch from tuxonice.net did not work, so I had to slightly modify it to apply cleanly on zen-sources.

Suspend to RAM works at least on my Dell Precison M65 and my Desktop, as well as suspend to disk does. Well, I have to mention that I wanted to use BFS, the brain fuck scheduler, to increase performance. This resulted in tuxonice freezing during  atomic copy when trying to hibernate, thus I had to use the CFS scheduler again.

Download the zen-sources 2.6.37_p20110325 patch here. Then apply the patch to the vanilla kernel sources avalable from kernel.org. Afterwards download my modified tuxonice patch from here: [download#64]. Then apply it and continue with the standard kernel building process.

For Gentoo users there is a more easy way: Download my modified zen-sources-overlay (including the patches) from [download#65] and extract it in /usr/local/portage. Be sure to include the following line in your /etc/make.conf:

PORTDIR_OVERLAY=”/usr/local/portage”

If you want to use tuxonice include toi in your USE-flags. Then emerge zen-sources and build the kernel as you wish. It would be nice if this USE-flag and the ebuild modification find their way into the portage tree.

Tuxonice is not officially supported in current zen-sources. So If you’re using the files above, don’t report any bugs to zen-sources.org. You are on your own.

For my Precision M65 I used the following kernel config: [download#66]

For more information on the zen-sources patchset see www.zen-sources.org.

best regards

Jürgen

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The current OpenSceneGraph ebuild in the Gentoo Portage tree does not install the OpenSceneGraph sample data set.  These  files include some sample models, fonts, bitmaps etc. used in the OpenSceneGraph examples and other applications.  This is a problem for applications relying on the files to be available. In example my stereoscopic image viewer SIV relies on having the OpenSceneGraph sample dataset installed and fails to load the arial font from the dataset with the following error:

Warning: font file “fonts/arial.ttf” not found.

Here is my modified ebuild resolving this issue: [download#63]

Download the modified ebuild and extract the archive into /usr/local/portage. Be sure to include the following line in your /etc/make.conf:

PORTDIR_OVERLAY=”/usr/local/portage”

If you want to use OpenSceneGraph with ffmpeg support, download the patch from bugs.gentoo.org and copy it to /etc/portage/patches/dev-games/openscenegraph-2.8.3/ as described there, to compile with ffmpeg-0.6. Otherwise the emerge will fail with:

/osgPlugins/ffmpeg/FFmpegAudioStream.hpp:18:9:
error: cannot allocate an object of abstract type
‘osgFFmpeg::FFmpegAudioStream’

Now you can set the examples USE-Flag and emerge openscenegraph to get the example dataset.

If you have got flightgear installed, reinstall simgear afterwards,  like the ebuild requests you to do:

emerge -1 dev-games/simgear

Depending on if you were upgrading or just reinstalling with the new ebuild it may be necessary to run revdep-rebuild to resolve issues with broken libraries. Hopefully the next ebuild in the portage tree will  include the sample data set.

Wxwidgets support seems to be broken with the current version. When using the wxwidgets USE-Flag Openscenegraph fails to compile with, so include

=dev-games/openscenegraph-3.0.1 -wxwidgets

in your /etc/portage/package.use if you have enabled wxwidgets in your make.conf.

best regards

Jürgen

(1 votes, average: 5.00 out of 5)

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Posted in 3d, graphics, linux, multimedia, programming | No Comments »

Recently I wrote about bino, a stereoscopic video player that is usable with linux and also supports quad buffered stereo. In the meanwhile the versions 0.9.1 and 0.9.2 have been released. The new version includes multithreading to read, decode, and display video data in parallel, for better performance and some bugfixes.

Bino still does not work properly with linux, at least it still does not display anything on my gentoo box. The patch for bino, I provided here, does not work anymore.

Problems

At least on my gentoo box bino failed to display anything. When starting bino  it failed with a window popping up:

Cannot set GL context format

The reason for this was the same as before. Bino was requesting an alpha visual, which did not succeed. I have not seen the point in requiring an alpha visual for bino, so I just removed this. You may download the patch from here: [download#60]

Addon: The patch is only necessary when the X server does not provide an alpha visual, which may i.e. be the case when using only 16 bits of colour  depth.

Getting things to work

Download Bino from here: bino-0.9.2.tar.xy and extract it.

tar -xf bino-0.9.2.tar.xz

Afterwards apply my patches and compile Bino.

cd bino-0.9.2

patch -p0 < bino-0.9.2-quad-buffered-stereo.patch

./configure

make

make install

The Gentoo way

For gentoo users here is my overlay including the ebuild: [download#62] Download the modified overlay (it includes the patches) 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 bino and enjoy viewing your 3d movies again.

Jürgen

(1 votes, average: 5.00 out of 5)

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Posted in 3d, gentoo, linux, multimedia | 1 Comment »

One year ago I provided a patch for mplayer which included support for quad-buffered stereo, enabling mplayer to display stereoscopic movies. In the meanwhile mplayer-1.0_rc4_p20101114 arrived in portage. As before with the original patch from Stuart Levy, my one does not work anymore due to some changes in mplayers gl2 driver. So I had to modify the patch again to work again with newer mplayer versions. You may download the updated patch from here:

[download#54]

The patch should work at least with nvidia quadro boards, probably with some others. It can be used with CRT and generic shutter glasses or HMDs like the Vusix VR920. Some stereoscopic sample movies for trying it out can be found on www.3d.wep.dk.

The Gentoo way

For Gentoo users I again modified the mplayer ebuild from portage to include the patch. The modified ebuild is available here:

[download#53]

The older ebuild and patch are still available on mygnu.de.

To use the ebuild it just copy it to /usr/local/portage/media-video/mplayer and copy the the patch to the “/usr/local/portage/media-video/mplayer/files” directory. You probably have to create these directories. Then run

ebuild /usr/local/portage/media-video/mplayer/mplayer-1.0_rc4_p20101114-r1.ebuild digest

Be sure to include the following line in your /etc/make.conf.

PORTDIR_OVERLAY=”/usr/local/portage”

Then just re-emerge mplayer.

Now start mplayer with -vo gl2:stereo and enjoy the experience in the 3rd dimension again.

Jürgen

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Posted in 3d, gentoo, linux, multimedia | 2 Comments »