Friday, 30 December 2016

Monday, 26 December 2016

Happy New year - RX480

So after a few months of existence the RX480 has become an established GPU for many users. It is powerful enough for most games and works well for an HTPC setup.

We have had many driver updates and as the product matures we have seen many fixes.

One of the annoying problem has been the problem of playing H.264 content. Many different codecs support (or try to) this scenario. Using the LAV filter (v0.69.0) using DXVA2 does not work, the picture keeps breaking up. However H.265 UHD 4K decoding using hardware acceleration works fine.  4K contents has to cope with 4 times the data conversion of H.264 and is probably more complex using HEVC. What is not too clear is where the problem lies.  As yet neither AMD or LAV developers have owned this issue !!
Initially AMD drivers mentioned the problem but that mention has been dropped as if it is not a driver problem.

For me personally this is not an issue as H.264 software decoding works and does not require any DXVA2 help.

We will see what 2017 brings to this arena.
Happy New year everyone.

Saturday, 24 December 2016

Setting an HTPC on Windows 10

Windows 10 can provide sound via many different connections. Most Motherboards will have a set of RCA connections. The RCA connections are not normally available on a laptop.

Also there is SPDIF via Coax or Optical

Sound channels are also available via HDMI and Display Port

Friday, 23 December 2016

LAV Filter 0.69

0.69.0 - 2016/12/11
LAV Splitter
  • NEW: Support for extracting HDR metadata from YouTube HDR VP9 streams
  • Fixed: Reading MKV files could crash when encountering tags for unknown or disabled streams
LAV Video
  • NEW: Support for 10-bit UtVideo
  • NEW: MagicYUV decoding support
  • NEW: Experimental support for CineformHD decoding
  • Fixed: Converting 12-bit 4:4:4 YCbCr to RGB32 would result in a garbled image
  • Fixed: Decoding certain H.264 streams could drop a few frames at the start of playback
LAV Audio
  • NEW: DTS Express (LBR) decoding support

HTPC - Windows 10 connected to an AV using HDMI

Sunday, 18 December 2016

Not sure why AMD have dropped H.264 corruption from its known problems....are they not telling us something.

From your comments nikospot I seem to be in the same situation as you are. I too use DVB (DVBviewer in my case). As you said there are many codecs out there some work and some don't. Is this then a codec issue or a hardware issue...maybe it is a driver issue. All I know is that HEVC decoding using LAV filter works fine for me. If the HEVC decoding works (which is probably more complex than H.264) are we really sure this is an AMD problem. Question: before Crimson drivers did anyone have H.264 hw acceleration working using LAV filter using any other AMD GPU? Don't get me wrong I would love to see LAV working with H.264 as well and the fact that AMD do not pass any real clues is downright inconsiderate to all their customers. 
Following this blog I have an open mind as to what may be the issue. It would be ideal if we could get comments from the LAV filter creators (maybe they can shed some light as to what can be done to fix this). MADVR is another codec with its own set of problem. Microsoft codecs ?

Not sure why AMD have dropped H.264 corruption from its known problems....are they not telling us something.

Friday, 9 December 2016

Support for games with HDR 10 or Dolby Vision™ capabilities

Radeon Software Crimson ReLive Edition 16.12.1 Release Notes

​Radeon Software Crimson ReLive Edition is AMD’s advanced graphics software for enabling high-performance gaming and engaging VR experiences. Create, capture, and share your remarkable moments. Effortlessly boost performance and efficiency. Experience Radeon Software with industry-leading user satisfaction, rigorously-tested stability, comprehensive certification, and more.
Radeon Software Crimson ReLive Edition 16.12.1 Highlights
New Features
    • Radeon ReLive(1): Capture, stream and share your greatest moments and gaming wins on your computer system with Radeon ReLive. Modify settings quickly, conveniently, and play seamlessly with the easily accessible in-game toolbar. Express yourself in bold new ways with custom scene layouts. Upload your latest highlights and let them be a conversation piece. It's never been easier to build and grow your online community at anytime, anywhere.
    • Radeon Chill(2): A power-saving feature that dynamically regulates frame rate based on your in-game movements. Radeon Chill can improve power efficiency and can lower temperatures for supported products and games when enabled through Radeon Settings.
    • Radeon WattMan(3): Added support for AMD Radeon R9 Fury series, R9 390 series, R9 380 series, R9 290 series, R9 285, R9 260 series, R7 360, and R7 260 desktop graphics products
    • Radeon Software Installer(4): New user interface and intuitive Radeon Software Installer that includes options for express install, custom install and clean uninstall. The new installer will also show options for the latest available driver for your system configuration during the install process.
    • Display Connectivity(5): New advanced display settings and diagnostics page within Radeon Settings with better detection for HDMI® cable issues and fallback for end users experiencing display issues.
    • AMD FreeSync™ Technology(6): Now supports Borderless Fullscreen Mode for applications and gaming with AMD FreeSync™ technology displays and supported products. Now supports Gradual Refresh Rate Ramp for mobile configurations with AMD FreeSync™ technology displays and supported products.
    • Upgrade Advisor(7): Provides a system requirement evaluation for Steam® games in your Radeon Settings library.
    • HDR Gaming Support(8): Experience the benefits of HDR gaming with Radeon Software Crimson ReLive Edition. Support for games with HDR 10 or Dolby Vision™ capabilities.
    • VP9 Decode Acceleration(9): 4K 60Hz GPU-Accelerated Video Streaming enabled on supported Google™ Chrome web browsers.
    • Skype Performance Enhancements (10): Lower CPU usage during Skype™ calls for select AMD APU Family products.
    • User Feedback Page: The User Feedback Page enables a direct link for end users to the Radeon Software Team and allows users to provide feedback and vote on upcoming features for Radeon Software. The User Feedback page can be found here.
Fixed Issues
    • Unable to launch the Problem Report Wizard from CCCSlim in Radeon Settings.
    • Radeon WattMan Power Limit setting may not retain after hitting apply when Auto Temperature is enabled.
    • DOTA™ may experience flickering in some hero and effect models when running the application in Fullscreen.
    • Pixel Format options may not appear in Radeon Settings on some 4K TV's with Radeon RX 480.
    • The Division™ may experience flicker during gameplay when using AMD Multi GPU configurations.
    • The Division™ may experience an application freeze or hang when running in AMD Multi GPU configurations after extended periods of play.
    • Game quality or performance may be degraded when launching multimedia content on a secondary display before running a game.
    • CIM folder retains under program files even after complete driver uninstallation.
    • Radeon Settings may experience an intermittent crash when accessing Radeon WattMan.
    • Display tab with virtual super resolution may be removed or missing in Radeon Settings.
    • The Radeon WattMan feature may intermittently display a Radeon Software popup error regarding Radeon WattMan for non-supported products.
    • Random crashes may be experienced on Mozilla Firefox.
    • DirectX®12 content may be unable to launch on some older CPUs that do not support popcnt instruction.
    • Intermittent Mouse Cursor corruption may be experienced on Radeon RX 480.
Known Issues
    • AMD FreeSync™ technology may experience performance issues with Borderless Fullscreen application support when a secondary display is attached and has dynamic content running such as video playback in a web browser or if other applications or game launchers are running on the primary screen in the background. A workaround if this issue is experienced is to minimize all other running applications that are on the primary desktop display or on non-primary extended displays.
    • Counter-Strike™: Global Offensive and World of Warcraft™ may experience flickering or performance issues the first time the game is launched on a system boot with AMD FreeSync™ technology enabled. Workarounds include exiting and restarting the application or task switching (alt+tab) in and out of the game to fix the issue.
    • AMD Multi GPU configurations may experience a system hang or reboot during install when using tiled MST 4K or 5K displays.
    • Titanfall™2 may experience black square corruption in game menus or during game play on some Graphics Core Next products.
    • FIFA 17™ may experience an application hang or black screen on launch for some select Hybrid Graphics or AMD PowerXpress mobile configurations.
Known Issues for Radeon ReLive
    • The XBOX™ DVR application may cause conflicts with Radeon ReLive, users are suggested to disable XBOX™ DVR if Radeon ReLive is experiencing issues.
    • Radeon ReLive may fail to install on AMD APU Family products or experience a system hang or failure to record when using the recording feature on AMD APU Family products.
    • Radeon ReLive may experience recording issues or issues toggling the Overlay/Toolbar when Frame Rate Target Control is enabled. Users are suggested to disable Frame Rate Target Control when using Radeon ReLive.
    • Battlefield™1 may experience UI flickering and/or performance drops when recording gameplay with Radeon ReLive on graphics products with 4GB or less of VRAM.
    • DOTA™2 may experience game corruption when performing a task switch while recording with Radeon ReLive in AMD Multi GPU configurations.
    • Radeon ReLive recordings may experience flicker when creating a single recording for many hours.
    • Radeon ReLive may experience minor graphical corruption for the first few recorded frames when launching UWP applications.
    • In AMD Multi GPU configurations the secondary graphics product will exit BACO when Radeon ReLive is enabled.
    • Radeon ReLive will not allow recording settings to change with Instant Replay enabled. A workaround is to disable Instant Replay and change settings then enable Instant Replay.
    • Radeon ReLive Overlay/Toolbar will not launch or Record when running League of Legends™ in Administrator Mode and Windowed Borderless Fullscreen. A work around would be to not use administrator launch privileges or to use Fullscreen mode.
    • Mouse cursor may stutter in recorded video when there is limited on screen activity outside of minor mouse movement.
    • Vulkan™ applications may experience a game hang when using Radeon ReLive to record.
    • Radeon ReLive will not notify an end user of low disk space during recording.

Some interesting comments here