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Das “Bullet Journal” ist eine Mischung aus Todo-Liste, Gedankensammlung und Tagebuch in Stichwortform. Sucht man im Netz nach dem Schlagwort, findet man sehr viele Beispiele, die grafisch sehr ansprechend, aber auch sehr zeitaufwändig gestaltet sind. “Ich kann aber gar nicht malen” ist dann bei vielen die Reaktion. Der Vortrag widmet sich dem Bulle…
 
Dieser Talk gibt einen Überblick über E2E-Verschlüsselung und stellt einen spannenden Ansatz vor.Oft ist unklar wer die Schlüssel zum Entschlüsseln vertraulicher Nachrichten besitzt. In diesem Talk werden jene fündig, die eher sich selbst vertrauen und eigene Schlüssen generieren. Jedoch der Clou dahinter ist die „Perfekte Sicherheit“.about this ev…
 
A basic encoding standard for content-addressed data. http://purl.org/erisERIS is an encoding standard for content-addressed data. ERIS is intended for use in semantic web components as well as a for archiving bulk data.This talk will feature an brief popular history of content-addressing schemes, its problems, and why a basic standard such as ERIS…
 
Nach der Pandemie haben Datenschützer es noch schwerer. Oder?Die Pandemie hat gezeigt, dass zentrale Register und Überwachung ausnahmsweise mal nützlich sein können. Auch Rufe nach Zwang und Überwachung aus bisher unbekannter Richtung wurden vernommen. Dazu muss sich das Chaos verhalten. Denken wir darüber nach.about this event: https://talks.daten…
 
Was ist dieses Fediverse und was soll so toll daran sein?Ein Überblick über das Netzwerk und ein Blick auf seine Besonderheiten, Vorstellung einzelner Dienste und ein kritischer Blick auf die Social Media Landschaft.Der Vortrag ist eine Erweiterung dieses Lightningtalks: https://video.dresden.network/w/fBf47fymjETZmF417pPgNFabout this event: https:…
 
Wie führt man ein vertrauliches Gespräch über einen unsicheren Kommunikationskanal?Im Podcast "Schlüsseltechnologie" erklären wir moderne Computertechnik von Grund auf. In dieser Live-Ausgabe soll es um den Diffie-Hellman-Schlüsselaustausch gehen. Dieses zu seiner Zeit revolutionäre Protokoll erlaubt es zwei Gesprächsparteien, ein gemeinsames Gehei…
 
Erarbeitung eines Katalogs individueller Handlungsempfehlungen für eine nachhaltige Digitalisierung.Die aktuelle Implementierung der Digitalisierung ist dysfunktional: Sie verursacht mehr Probleme, als sie löst. Auf der Konferenz Bits&Bäume 2018 wurden mit Beteiligung u.a. des CCC, des FIfF, des BUND und der OKF [elf konkrete Forderungen](https://b…
 
Ein Vortrag über die Facetten und Nuancen dessen, was das 'Hacker'-sein denn tatsächlich bedeutet.Ein als 'Hacker' bezeichneter Mensch weckt unwillkürlich immer das BIld einer über einem Computermonitor gebeugten Person, welche tagein, tagaus nichts anderes tut, als in besagten Monitor zu schauen und in den virtuellen Eingeweiden des Computers zu w…
 
In April of this year, Khronos released a provisional set of extensions: [VK_KHR_video_queue, VK_KHR_video_decoder_queue and VK_KHR_video_encoder_queue](https://www.khronos.org/blog/an-introduction-to-vulkan-video). They all aim for hardware accelerated video decoding and encoder with the Vulkan API. In this talk, we will introduce the basics of vi…
 
The CPU performance scaling is one of key parts in Linux Kernel, it is to manage the CPU frequency according to kernel and processor status and widely used by many user mode application to talk to the processors. The system information APIs in Wine will use the CPU performance scaling interfaces to manage the multi-core processor schedule timing co…
 
With Freedesktop's move to Gitlab every project not only got access to a lot of machine time, but they also got all the infrastructure to automate their runs, inspect the results, and provide automated testing reports of merge requests. This has led to a lot of projects adopting it to reduce regressions and maintenance costs to the point of almost …
 
I'm going to present a summary of the last 10 years or so of participating to the moderation and animation of the xorg-security@ mailing lists.This is an opportunity for people interested in taking over this responsibility to have an insight of the kind of issues that are submitted and how we've been dealing with them. about this event: https://c3v…
 
Last year, it was fires everywhere. This year? well, it was also the same, sort of.In this talk, we will see what steps we took to reduce further more our bill for our gitlab hosting. We will also tell some jokes like "oh, BTW, we almost lost all of our storage", or something like "oops, I killed the entire cluster". Oh the fun we had.So yes, this …
 
The purpose of TTM is to provide buffer object contents in memory where it is mappable by the CPU and GPU when needed, and also to allow overcommitting by means of swapping or eviction.This talk will cover the process of moving memory management in i915 kernel driver to TTM. about this event: https://c3voc.de…
 
The [big change][1] in KWinFT this year is the replacement of all its own hardware backend plugins for its Wayland session with a single backend talking to wlroots.This talk goes into detail on: - reasons for this strategic move, - technical realization, - outcome with advantages and disadvantages, - long-term impact on the ecosystem. [1]: https://…
 
Due to its nature, the display stack can be hard to test. Indeed, the component we want to test often sends the pixels to an external display without any way to retrieve the image being output, let alone make sure it's correct.And while a human can perform some of those tests by looking at the screen, some issues can prove to be difficult to spot, …
 
While GPU multi-tenancy in the server world has grown rapidly, hostile multi-tenancy on single, commodity GPUs has been virtually unexplored. Existing multi-tenancy solutions for GPUs all fall short in at least one of the following areas: Minimizing attack surface, strongly isolating potentially hostile tenants, supporting consumer GPUs, and allowi…
 
I'm going to present a summary of the last 10 years or so of participating to the moderation and animation of the xorg-security@ mailing lists.This is an opportunity for people interested in taking over this responsibility to have an insight of the kind of issues that are submitted and how we've been dealing with them. about this event: https://c3v…
 
Modern applications in areas like Machine Learning, Artificial Intelligence, and 3D Graphics, require a synergistic software/hardware ecosystem that allow developers to take full advantage of hardware accelerators. In this scenario, it is critical to have a low-level API that can easily support and adapt to any device, in order to minimize the impa…
 
We talk about a new programming interface “Sysman” which is part of level zero library.Sysman (System Resource Management) is used to monitor and control the power, frequency, temperature etc , of accelerator devices.Sysman is an API that will,• Enable HPC (High Performance Compute) GPU servers to optimize/track power, temperature ,utilization, mem…
 
This talk presents an overview of the KWinFT project in 2021. The following topics will be discussed: - original motives for founding the KWinFT project, - recap of previous developments in 2020, - overview of current developments, - project organisation and scaling, - embedding in the ecosystem: long-term plan for KWinFT as a C++ library collectio…
 
After the talk "SSA-based Register Allocation for GPU Architectures", this workshop will be for people considering implementing SSA-based register allocation or wanting to understand the ACO and Freedreno implementations. We can also go more in-depth with different strategies and heuristics used to optimize the register allocation problem, if there…
 
At last year's XDC, Jason gave an overview of the VK_KHR_ray_tracing extensions and how they can be used to implement a ray-tracing render from a client POV. In this talk, Jason will discuss the implementation of those extensions in Intel's Linux Vulkan driver. We'll cover over-all architecture as well as detailed topics such as bindless thread dis…
 
Broken and flickering geometry, corrupted textures, and even hangs in real-world games and apps are common issues in open-source graphics driver development. While conformance tests are mostly narrow and confined, finding driver problems when running triple-A games can be a challenging task.This talk will show a major misrendering example when runn…
 
Ever wondered what happens when you mix Emscripten, Graphviz, and a Vulkan driver? I couldn’t help myself and tried: What started as a simple visualizer for shader control flow has since grown into a port of Mesa’s shader compiler ACO running in the browser, capable of compiling thousands of shaders on-the-fly. Don’t believe it? Demo included!Putti…
 
One of the biggest user-facing issues facing wayland adoption is robustness. A crash in the compositor can take down the entire session and lead to data loss.With wayland being a constantly changing landscape and with more workload being put on the compositor process this doesn't seem to be going away.This talk showcases work across multiple librar…
 
With the ever-increasing focus on testing found in our community, let's try to coordinate the efforts of every individual.The main focus for this workgroup will be two-fold: - Ramp up the trace-based testing in Mesa CI / DXVK / ... - Bring kernel testing to more drivers than i915Please ping mupuf on IRC on OFTC's #freedesktop to add additional topi…
 
Ich mache gerne Fahrradtouren und navigiere dabei mit meinem Handy auf Openstreetmapkarten. Allerdings verbraucht das Navigieren ziemlich viel Strom, sodass der Akku den Tag nur knapp durchhält. Daher habe ich überlegt, mein Handy über den Nabendynamo an meinem Fahrrad zu laden. Das Ergebnis stelle ich in diesem Petit Foo vor.about this event: http…
 
Lightning talks for the first day of the conference:- LibVF.IO & Hyperborea - new tech for VFIO graphics passthrough users- Another year, another ISA: Panfrost update- The Input Method Hub- Quick Overview of VK_EXT_multi_draw- SDL: The Quest for Wayland By Default about this event: https://c3voc.deBy XDC 2021 Organizers
 
The Virtual Kernel Mode-setting(VKMS) driver aims to help with testing and development of graphics drivers without having to use actual graphics hardware. My work during Outreachy comprised adding support for emulation of virtual hardware in VKMS. This involved writing/refactoring code in IGT GPU tests as well. I want to talk about my journey as a …
 
CRIU a.k.a Checkpoint Restore in Userspace is the de-facto choice for Checkpoint and Restore but one of its major limitations is to Checkpoint and Restore tasks that have a device state associated with them and need the driver to manage their state which CRIU cannot control but provides a flexible plugin mechanism to achieve this. So far there is n…
 
SSA-based register allocation is a new strategy for register allocation which decouples register allocation from spilling and guarantees predictable register usage. It holds special promise for GPUs due to common architectural features like dynamic register sharing, but there are also challenges in real-world implementations. After first being used…
 
The Internet has been under a spell over the M1 system-on-chip. Is Apple's GPU architecture magically faster than the rest of the industry? Or is it all smoke and mirrors? Only a reverse-engineering witch can divine that truth. Grab your cape, because we're about to spill the chip's secrets, solve mysteries we were never supposed to know about, and…
 
Lima is an open source graphics driver which supports Mali Utgard (Mali-4xx) embedded GPUs from ARM.It’s a reverse-engineered, community-developed driver.At XDC 2019 there was a presentation about Lima, which happened not long after its initial inclusion in upstream.At that time, it was still missing some important features to be a complete driver.…
 
Last year we presented our on-going work to bring Vulkan support to theRaspberry Pi 4 platform. This talk is intended to provide a progress updateafter a year of additional development, discussing main priorities andachievements during this period as well as future development plans. about this event: https://c3voc.de…
 
An alle Kreaturen des Chaos Universums: Wir feiern 40 Jahre Chaos Computer Club!Zu diesem Anlass haben wir mit eurer Hilfe ein kleines Geschenk vorbereitet. Wir präsentieren die 40 Jahre CCC Geburtstags Gala.Danke lieber CCC. Und Danke allen, die mitgeholfen haben!---EN:Hello beautiful Creatures of the Chaos Universe, we celebrate 40 years of the C…
 
BornHack 2021 is almost over at this point. We would like to say farewell for now and see you again at the next event in 2022.We will walk over what we believe has worked and what we believe should change the next event. This is an excellent opportunity to submit ideas for BornHack 2022 while the memories are still fresh.about this event: https://b…
 
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