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Archive for October, 2014

Back from openSUSE Asia Summit 2014

October 31st, 2014 by

Thanks to openSUSE TSP, this was my first ever participation in openSUSE event. I spent 15 days in China, traveling outside Beijing after the event, One word to define the experience  would be People, close second would be Food. In this trip I met some of the nicest, friendliest and most helpful people and had food I have never seen before or know the names of.

The summit venue was very impressive, and the event was well organized, there were wide range of topics in both Chinese and English, including mine on openSUSE Education project. What was really missing in the event were many participants. It was a pleasure meeting all the attending community members: Saurabh Sood, Max Lin, Max Huang, Fuminobu Takeyama, Richard Brown, Anja Stock, Raghu Nayyar, Alick Zhou, Qian Hong,  and all the magicians behind the curtains running the show: Sunny, Lance, Yifan et al.

Geeko and me

UnReal World RPG and propiertary applications in linux ecosystem

October 24th, 2014 by

While ago new version 3.19 of UnReal World RPG was released. It was very smooth release in my part. Everything was working as expected. Packages were build to several platforms that were planned. Those platforms were Ubuntu 10.04, 12.04, 14.04 and openSUSE 12.2,12.3,13.1 all there packages build from openSUSE 13.1 base distribution. Nobody found nothing to complain about binary packages before someone launched them on Arch distribution. (more…)

openSUSE Asia Summit, 18-19 October

October 14th, 2014 by

你好 北京!

Hello Beijing and lovely people of openSUSE, I will be reaching there tomorrow, will be at Green Tree Inn close to the summit venue, packing some “sightseeing” before the event, if you are also there early drop me a line . There is a short talk about openSUSE Education scheduled on 19th. Check out the summit website to find out what other interesting stuff is on offer.

See you soon…

oSA14

Proprietary AMD/ATI Catalyst fglrx 14.9 (14.301.1001-1) rpm released

October 11th, 2014 by

As of October 11th, a bunch of new rpm for FGLRX has been released for openSUSE 11.4 to 13.1 including Tumbleweed.
a special patch has been added for supporting up to kernel 3.17

Installation / update

Please refer to the wiki page SDB:AMD_fgrlx_legacy

Notice radeon HD5xxx or above only

This release concern only owners of radeon HD5xxx or above.
For older gpu, the fglrx-legacy is still 13.1, and thus didn’t work with openSUSE 12.3 or above.
SDB:AMD_fgrlx_legacy
Beware of that, and prefer the free open-source radeon driver which came out of the box from your openSUSE distribution.
For 12.3 and especially 13.1 the free radeon often offer a better experience than the old fglrx-legacy, especially for HD2xxx-HD4xxx range.

openSUSE Factory / 13.2

Dear fellow, unfortunately an still open bug at AMD is not yet resolved to make FGLRX working under newer xorg version.
There’s also a re-organization of how xorg files will be placed in the file system. Once both of them will be fixed Sebastian will produce a newer script.
If those appear soon we perhaps will see rpm fglrx for 13.2.

Release note about 14.9

AMD Full release note

New Features:
The following section provides a summary of new features in this driver version.

   AMD Radeon™ R9 285
   Ubuntu 14.04  support
   RHEL 7.0 support
   Install improvements
      Package and distribution generation options; recommend options set by default
           Help user install generated distribution package once created
      Pop-up messages to help guide users through the install process
           Identifying and installation of pre-requisites 

Resolved Issues:
This section provides information on resolved known issues in this release of the AMD Catalyst Linux Software Suite.

  Witcher 2 random lock-up seen when launching the application
  Screen corruption when connecting an external monitor to some PowerXpress AMD GPU + Intel CPU platforms
  Intermittent X crash when the user does a rotation with Tear Free Desktop enabled
  Failure on exit of OpenGL programs
  Error message being displayed when a user does run clinfo in console mode
  Blank screen when hot plugging an HDMI monitor from a MST hub
  System hang after resume from S3/S4 in High Performance mode on PowerXpress AMD GPU + Intel CPU platforms
  Corruption or artifacting on the bottom right corner of the screen before booting into login UI during restart
  Occasional segmentation fault when running ETQW
  xscreensavers test failing with multi-GPU Crossfire™ configurations
  Motion Builder severe flickering while toggling full screen
  Intermittent crashing and corruption observed while running X-Plane
  Some piglit and Khronos OpenGL conformance test failures
  Displays occasionally going black when startx is run on Ubuntu 14.04 after switching to integrated GPU on PowerXpress AMD GPU + Intel Haswell CPU system platforms
  A connected external display getting disabled when unplugging AC power from laptop platforms
  An auto log out when double clicking the picture under desktop server times on PowerXpress AMD GPU + Intel CPU platforms

Known Issues:
The following section provides a summary of open issues that may be experienced with the AMD Catalyst Linux Software Suite.

  [404829]: Horizontal flashing lines on second screen in a clone mode with V-Sync on using AMD Mobility Graphics with Switchable Intel Graphics
  [404508]: Display takes a long time to redraw the screen after an S4 cycle

This Catalyst fglrx version support openSUSE version from 11.4 to 13.1 plus Tumbleweed (thus covering kernel from 3.11 to 3.17 series).
A special thanks to Sebastian Siebert for his effort on making this driver working under openSUSE and latest kernel.

(more…)

Ruby: Do not use += in loops

October 8th, 2014 by

Hi,
My motivation for writing this blog post is to have one simple place where I can point everybody using += in a loop. I will describe here why it can kill the performance of any application or library and will also show some measurement to demonstrate it. (more…)