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Daniel Stone
Works at Collabora
Lives in London, UK
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Daniel Stone

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SteamOS rebases on Debian Jessie
Valve is pleased to announce the preview of the next SteamOS release, codenamed "brewmaster" and based on the latest Debian 8.1 stable release. Please note that this is a very early preview release and we have done only limited hardware compatibility and functional testing.
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So for quite some time, if I switch from X11 to fbcon, I get a graphical animation that "moves" the fbcon content into the screen from the right / left border depending where I switch to. The animation is a bit clumsy and if you look closely, you notice it takes exactly 4 frames, and each frame moves the content by exactly 25% to the left / right. It never bothered me that it wasn't really smooth (I mean, it's the same people that wrote motif, right?), I just imagined some gfx-developer looking at the result and being satisfied. Which in turn made me happy.

That changed radically today, after I tried asking the DRI developers where that code is implemented. Turns out, no-one was aware of that animation and it's very likely a bug in the SNA code of the intel DDX.

Long story short: I wish I could screw up in my code and it would produce a fancy feature. All I get is angry users.. sigh
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Nikolai Kondrashov (spbnick)'s profile photo
 
Ha-ha :)
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And the less happy news. I guess we've really made it as a project now.
X.Org/Wayland Security Advisory: Missing authentication in XWayland. Daniel Stone daniel at fooishbar.org. Wed Jun 10 08:06:08 PDT 2015. Previous message: [ANNOUNCE] xf86-input-libinput 0.11.0; Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] ...
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John de Largentaye's profile photoJulien Goodwin's profile photoIvan Pejić's profile photo
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+John de Largentaye Being on the Randal's FLOSS Weekly is also mandatory. :D
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It's that time of year: +Linux.conf.au 2016 -- Geelong, Australia's Call for Papers is open. Not content with hosting the world's best Australian football team, Geelong now welcomes the world's best open source conference. Brilliant!

1st-5th Feb. It'll be sunny. The northern hemisphere won't.
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Sasha Gerrand's profile photoChris Stone's profile photoCraige Mac a' Chruiteir's profile photo
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Do you think you're a chance to come home for this one Danno?
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keywords: DRM, KMS, Wayland, window systems, media decode, buffer allocation/sharing, atomic modesetting, etc
 
Proposing a Graphics microconference during @LinuxPlumbers http://bit.ly/1K54fTv
The Linux Plumbers 2015 Graphics track is focusing on making sure that we discuss next steps regarding graphics/modesetting and standards for the next 6 to 12 months. With so much convergence taking place right now, there is a great opportunity to make things smooth and work across architectures ...
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OpenCL compiler for ... an FPGA.
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Daniel Stone

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I recently started testing Wayland for my every day desktop usage. So far it is quite pleasant. Gnome 3.16 is really well integrated with Wayland so I don't miss X.org. It's really good that I commonly forget I'm using Wayland.

But, of course, there are a few very funny things to notice :-)

1.) Dialogs appear in the top left before they are moved to the appropriate location (e.g. the middle of the screen). This took a few times to get used to, but it's not an issue.

2.) Alt+Tab switching to gnome-terminal causes it to think the key 'd' is pressed. Typing 'd' solves that. I've seen that in the past before with the 'Tab' key under X.org, so it's different, but not really new.

3.) When suspending the system, resuming it and attaching a second monitor, I cannot perform mouse clicks in IntelliJ 14. This is really funny for me. Moving the window to be in between the monitors, the clicks on first attached monitor work just fine, but on the second monitor it just does nothing. It's even better that I can still click the background just fine (e.g. to change the wallpaper).

4.) Sometimes IntelliJ loses its ability to receive keyboard input. The mouse works, but typing just does nothing. Alt-Tab switching to any other window and back solves that. It seems to be related to modal dialogs opened by IntelliJ, but I could not find an easily reproducibly test case.

As said, so far it works really flawless. I'm pretty certain that there is lots of Xwayland-magic involved, as e.g. Chrome does not nativly run on Wayland yet. But it's not that I would notice that as a user. I'm really happy to see how well Wayland and Gnome are doing their job.
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Fame! Fortune!
 
Linux 4.1 dev. cycle statistics: Collabora thanks all its customers for making it on the list http://bit.ly/1TdBBTa
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John de Largentaye's profile photoIvan Pejić's profile photoDaniel Sandman's profile photoRogelio Serrano's profile photo
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Nah, it doesn't work like that... Try posting on Youtube something Darwin Award worthy. :D

It's obvious that I'm simply jealous as I don't get paid to work on opensource. :(
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Today's happy news! Please do come along if you're interested, and come along. Topic proposals still open too.
Although the Year of the Linux Desktop has yet to arrive, a surprising number of Linux users nevertheless need graphics support. This is because there have been a number of years of the Linux smartphone, the Linux television, the Linux digital sign/display/billboard, the Linux automobile, ...
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+Dave Airlie Nick Krause?
 
This is wonderful; neural network setup producing wonderful results; one example is training it on wikipedia and it ends up producing valid XML pseudo articles.  Another is training it on Linux kernel source, and it ends up producing C code that looks appealingly complex until you try and figure it out (even with bogus comments).
http://karpathy.github.io/2015/05/21/rnn-effectiveness/
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Patrik Jakobsson's profile photoThomas Gahr's profile photo
 
So the question is, how many iterations has he been running? :)
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Let's hope my review didn't scare them off.
 
Mediatek submits new DRM module for review ahead of SOC availability. Progress! http://bit.ly/1Fek2fA
[RFC][PATCH 0/2] MT8173 DRM support. CK Hu ck.hu at mediatek.com. Wed May 13 08:23:44 PDT 2015. Previous message: [PATCH 9/9] drm/exynos: Convert g2d_userptr_get_dma_addr() to use get_vaddr_frames(); Next message: [RFC][PATCH 1/2] dt-bindings: drm/mediatek: Add Mediatek DRM dts binding ...
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Damián Nohales's profile photoDaniel Stone's profile photoMarius Gedminas's profile photo
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Every time I see DRM mentioned in a graphics context it takes me a while to switch from "but but but Digital Rights Management is a Bad Thing!" to "oh, that DRM".
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Because packaging formats are about choice:
' In retrospect, looking at apt/dpkg versus yum/rpm the conclusion has to be that the competition between the two components has not significantly benefited users – quite the opposite.'
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Robert Collins's profile photoRogelio Serrano's profile photoDaniel Stone's profile photoSriram Ramkrishna (sri)'s profile photo
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I would say there is no such thing as a perfect solution, just acceptable trade offs or trade offs that is universally tolerated for majority of  use cases.
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Work
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Collabora Graphics Lead
Employment
  • Collabora
    Graphics Domain Lead, 2008 - present
Basic Information
Other names
daniels
Story
Tagline
graphics & input & whatnot
Introduction
I'm the one who does graphics and input, not the social media guy from Sydney (he's http://theinternets.com.au). During the day, I'm the graphics lead at Collabora, who are all-round wonderful people.

If this stuff interests you, I write in longer form at http://fooishbar.org.
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Currently
London, UK
Previously
Melbourne, AU - Helsinki, FI