glxosd and voglperf now available for Fedora in COPR

For all our gaming enthusiasts, I packaged glxosd and voglperf for Fedora and you can find them in my COPR repositories: glxosd COPR and voglperf COPR.

These tools allow you to have FRAPS-like features on Linux, i.e. show an overlay in OpenGL games/apps to display current FPS, and also capture the frame times into a file and plot them to a graph later. So you can now use it with any Linux game and fine-tune its graphics settings to match your preferred performance. Or you can see when your CPU or GPU is overheating. Or you can contribute to Open Game Benchmarks. Or something else.

This is an example of the glxosd overlay in action (don’t worry, its output is configurable):

glxosd overlay

And if you want, you can later plot the performance into such pretty graphs using this awesome glxosd analyser web page:

fps graph
frame times graph

And this is an example of the voglperf overlay (top left corner):

voglperf overlay

And a generated graph:

frame times graph

There are other similar tools which you can use, but I know about any that is generic and has all these features. There is of course the Steam FPS overlay, but you can only use it for Steam games, and it can’t log frame information. There’s also GALLIUM_HUD, but that’s only available for Gallium-enabled drivers (radeon, nouveau) and also can’t log frame information. These two new tools should work with any driver and can be used for any game/app.

You can find installation instructions in the linked COPR repos. I do not intend to move these packages to official Fedora repos, but if somebody is willing to get their hands dirty and work on that, great, please contact me and I’ll try to help.


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glxosd and voglperf now available for Fedora in COPR

New package in Fedora: sendKindle

sendKindle allows you to easily send documents to your Amazon Kindle device using a command line. You no longer need to open an email client, create a new email, fill in the recipient and a subject, add attachments, hit send, no. You just write sendKindle into your terminal, drag and drop the file, hit Enter. It’s faster 🙂

I already blogged about sendKindle before. It will use your email account (I tested just GMail) to send the file to your Amazon address. (As a bonus, I have a filter defined in GMail which will move these emails from the Sent mail to Trash, because I don’t want all the files to clutter my mailbox, and it works great.)

Recently I finally became a packager (hooray!) and pushed sendKindle as my first package into Fedora. It’s currently in updates-testing, so until it receives some karma or a week passes, you can install it like this:

$ yum install sendKindle --enablerepo=updates-testing

In a week you can use your favorite package manager without any further “complications”, because it will have landed in stable updates for Fedora 17 and 18.

The project lives at github, report all your problems there (except packaging bugs, which go to bugzilla). Be sure to see the README though – if you want new features, you need to provide patches.


New package in Fedora: sendKindle

Bookmarklet: Maximize your YouTube videos

A few days ago I got pretty annoyed at YouTube:

  • The video windows are really small, even enlarged. It doesn’t respect available screen size at all. It is impossible to size it arbitrarily.
  • Fullscreen is cancelled when you adjust the system volume using hotkeys (Firefox+HTML5+Linux).
  • Fullscreen is cancelled when you switch to a different application (HTML5, Flash).
  • Fullscreen can’t be used even in a dual-head setup, i.e. run the video on one screen and work on another.
  • Entering and leaving fullscreen causes video quality switching every single time (HTML5). That causes a few seconds lag. The only way to work around is to manually select video quality, then it’s not changed forth and back.

The net result: I swear a bloody vendetta to YouTube/Flash/Firefox developers every time I want to watch large videos and do something else (or adjust my volume!) at the same time.

I haven’t found any good solution for this on the Internets, so I created my own. Here’s my glorious bookmarklet:

>> Get YouTube Maximizer

(I had to create in on an external site, because WordPress doesn’t allow to insert bookmarklets into blogs. So just follow the link).

Drag and drop the button to your bookmarks bar in your browser. Then visit YouTube, open up some video and click the button in your bookmarks bar. The video should reload and fill your whole screen. It should also automatically switch to 720p quality, if available.





This has several advantages:

  1. Your browser window is fully resizable and the video dimensions change with it.
  2. If you switch your browser to run in fullscreen, the video still works, even if you switch to a different application. Here we come, multi-head!
  3. You no longer need to manually force HD video quality.

Some final notes:

  • The bookmarklet source is here. Please bear in mind I have zero HTML/JS knowledge. If you have some patches, post them on github.
  • Flash is required for this to work. Patches welcome on how to do the same thing with HTML5.
  • If you want something else than 720p to be the default, just edit the bookmarklet and change quality="hd720" to something else.


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Bookmarklet: Maximize your YouTube videos

bzattach – script to attach multiple files to bugzilla from shell

Don’t you guys just hate using Bugzilla’s web interface for attaching files? Especially when you have like >= 5 of them? I do. It’s slow, it requires like 20 mouse clicks and whatnot.

I recently learned you can use “bugzilla attach” command from python-bugzilla >= 0.6.2 (I had to install an .fc17 package), but it’s still not as easy as I would like to.

So I created a wrapper on top of that, “bzattach” command. Usage [1]:

$ bugzilla login       #only for the first time
$ bzattach 12345 *.log


If you like it, get it while it’s hot!

[1] “–help” is also supported, be sure to check that out

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bzattach – script to attach multiple files to bugzilla from shell

sendKindle: send files to your Kindle from command line

Do you have an Amazon Kindle device and do you find the standard way of transferring files via email too uncomfortable? I’ve created a simple tool that may be of help.

I have lots of books (PDFs, PDBs, etc) on my computer. I also frequently download something from the web (HTML pages, images, …) I want to read later on my Kindle. But I am too lazy to find the data cable and I am also too lazy to open up web client and send the files as attachments. I wanted something simpler, so I created it.

The tool is called sendKindle. It’s a simple Python CLI script that takes all files specified as arguments and sends them to your Kindle device via your email provider (you need to create a configuration file with access details first).

You can find the code at:

You can check-out the code and run the tool directly, or install using easy_install:

# easy_install -U sendKindle

And then you just do:

$ sendKindle FILE...

On the first run you will be asked to create a configuration file at ~/.config/sendkindle/sendkindle.cfg with appropriate email settings (just copy and paste and change appropriately).

And that’s all, my friends. I hope some of you will find it useful.


sendKindle: send files to your Kindle from command line

Esmska 0.21 released

I finally found the time and released Esmska 0.21. You’ll find some new gateways, new centralized dialog for user-gateway communication, largely improved gateway configuration, and some other bits.

And what is Esmska, exactly? It is a program for sending SMS messages to your friends’ phones from your computer.  You just have to choose a gateway through which to send the message. Esmska supports a few international ones that can send anywhere in the world. Those are paid of course. Some countries (like the Czech Republic) have lots of free gateways too. If you have a favorite gateway not supported by Esmska and have a little of http/javascript knowledge, you can implement it in a form of a simple plugin and your work will be part of the next release.

So, this is the link you want to click on: 🙂


Esmska 0.21 released

jabber-roster: back up the list of your Jabber contacts

I’m a backup fanatic. I try to backup all my personal data regularly. And I don’t mean just documents stored locally on my laptop. I also mean all my data located at various network services (“in the cloud”). Do you really believe that Google servers won’t suffer a major incident and won’t lose all your emails some day? I don’t. And what about your appointments in a web calendar, your RSS feeds in a web RSS reader, your photos at a web photo gallery, etc – do you believe it will stay there forever? I don’t. So I back up everything.

My last piece of “back-up scripts” is intended for backing up the list of my friends who use Jabber. It’s a very short and simple script – you just tell it the server, username and password of your Jabber account and it will print out the list of your friends (“the roster”). That’s all. It’s not much, but I don’t need anything more. Maybe you will find it useful too.

You can download it from here:


jabber-roster: back up the list of your Jabber contacts