Messages

121

Applications and Porting / Firefox 78 / WebRTC regression

« on: November 14, 2020, 01:15:56 pm »

As noted elsewhere in the forum, WebRTC was working for me using Firefox 68 on Debian with the custom kernel compiled for a 4k page size.

I recently updated to Firefox 78 (provided as a security update on Debian) and this included a regression, the WebRTC incoming picture is not displayed any more.  Incoming audio is fine and outgoing picture is fine.

Do people see similar problems on other operating systems and/or Firefox versions?

It is in the Mozilla bug tracker, please add any comments there as that is what the Mozilla developers will look at.

122

Blackbird / Re: [amdgpu] [Fiji] Fedora 32 Linux kernel 5.7.x crashes

« on: November 14, 2020, 01:03:29 pm »

I'm thinking about exchanging my Talos II for two of the Talos II Lite motherboards.  Then I could use one as my regular workstation and the other as both a test system and a spare.

If I do that then it will be much easier for me to test new GPUs and drivers and anything else that requires reboots, X server restarts and potential crashes.

123

Applications and Porting / Re: Video Encoding

« on: November 14, 2020, 11:09:52 am »

This is the example command in the page:

Code: [Select]

gst-launch-1.0 filesrc location=~/big_buck_bunny.mov ! qtdemux ! h264parse ! vaapidecodebin ! vaapisink

Notice that the qtdemux is only for a Quicktime file (*.mov).  If your input file has another format, such as MP4 or WebM, then you need to replace the qtdemux with another element.

I recommend asking on the mailing list for gstreamer, this is also a good way to raise awareness about what people are trying to do with OpenPOWER.


Please post the full command line you are trying to use and the full error.

124

Blackbird / Re: [amdgpu] [Fiji] Fedora 32 Linux kernel 5.7.x crashes

« on: November 13, 2020, 07:47:29 am »

There are many bugs that are not so hard to fix.

Sometimes a bug that is only visible on one platform today reveals a quality issue that might cause future problems on other platforms.  Experienced developers usually know this and will be keen to resolve it if they have some hints from the people impacted by the bug.

It is related to the thread I started about having a critical mass of developers.  It is also a chicken-and-egg problem: the more developers tinkering with things on the platform, the more attractive it is for additional developers to join.

125

Blackbird / Re: [amdgpu] [Fiji] Fedora 32 Linux kernel 5.7.x crashes

« on: November 13, 2020, 04:08:52 am »

I found a Phoronix article about RX 6000 support on GNU/Linux

It looks like the issues are the same for every architecture, not only POWER9

Some things are already done, for example, the kernel 5.9 is in Fedora 33.  Debian stable-backports has 5.8 but sooner or later it will get 5.9.

The other things mentioned in the article (LLVM, GFX, Mesa) appear to be available in Debian unstable so it may be possible to simply run unstable or backport them to buster.

People can actually upgrade to Fedora 33, upgrade to Debian unstable or start running the newer kernel and/or preparing backports of these things before getting the RX 6000 series cards.  So you can see if everything else on your computer works normally with the new kernel and libraries before spending money on hardware.

Once you have all that software installed/upgraded, you may simply be able to insert the card and it works immediately, whether you are on x86 or POWER9

126

Blackbird / Re: [amdgpu] [Fiji] Fedora 32 Linux kernel 5.7.x crashes

« on: November 12, 2020, 03:06:16 pm »

Which drivers?

Something in the kernel or something in Xorg?

For some things, like OBS Studio, the code was there but nobody had created a package.  If it is a problem like that then it is very easy for me to make a package and put it in a repository.

If you can provide specific links to mailing list discussions or changelog entries that can help me understand the actual issues involved.

127

Blackbird / Re: [amdgpu] [Fiji] Fedora 32 Linux kernel 5.7.x crashes

« on: November 12, 2020, 12:53:30 pm »

Did anybody try the kernel with 4k page size?  I feel it would be very useful to have feedback on that.

The Big Navi cards arrive on 18 November, next Wednesday and I'm probably going to try one of those in my system.

128

General OpenPOWER Discussion / Re: critical mass of developers

« on: November 11, 2020, 07:57:35 am »

The fighting inside organizations is often worse than the fighting between organizations.

The litmus test for a damaged culture is the almost total lack of women in many influential free software organizations, including the distributions.

129

Applications and Porting / Re: Video Encoding

« on: November 09, 2020, 01:45:26 pm »

You need to adapt the example command to make it do what you want to do.

It might be helpful to ask people in the mailing list or IRC channel for gstreamer, they can help you construct a gstreamer command to do just about anything and they may be interested in how you are using it on a new platform

130

General OpenPOWER Discussion / Re: European logistics / delivery, warranty returns, etc

« on: November 09, 2020, 12:56:20 pm »

I found noting about sound in your blog post.

I'm using a USB sound device, Creative X-Fi HD.  It is working fine using the optical connection to an amplifier and using a Rode microphone for input.

131

General OpenPOWER Discussion / Re: European logistics / delivery, warranty returns, etc

« on: November 09, 2020, 06:53:19 am »

I'm in Suisse Romande, so we might be neighbours.

Please see my blog about choosing between the Blackbird and the Talos II Lite.  For many people, the Talos II Lite is a much better choice and only a little bit more expensive.  You get to use a wider GPU, there is better cooling, 4 memory channels (instead of just 2 in Blackbird) and use of any POWER9 CPU (Blackbird limited to 8 cores).  The cost difference is less than €150 + the bigger case.

132

Applications and Porting / Re: Video Encoding

« on: November 09, 2020, 03:54:40 am »

gstreamer is a framework that can be used to create multimedia applications

It can also be used from scripts to do various things involving real-time streams or modification of media files

For example, you can use one plugin to read an MP4 file and another plugin to display it in a window.

I think that Radeon should work with VA-API
https://gstreamer.freedesktop.org/documentation/vaapi/vaapidecodebin.html

and this is for NVIDIA
https://gstreamer.freedesktop.org/documentation/nvcodec/index.html

The Arch Linux wiki has some comments on the way to access hardware encoding/decoding for different GPUs:
https://wiki.archlinux.org/index.php/Hardware_video_acceleration

133

Applications and Porting / Re: Video Encoding

« on: November 08, 2020, 03:50:08 pm »

Have you tried the ffmpeg patches?

The work is being sponsored through BountySource but I'm not sure if it is merged into ffmpeg, you can search the ffmpeg trac or try to apply the patches manually.

The new Radeon cards have AV1 on the card and many existing Radeon cards can do some existing codecs too.  Have you tried using any software that uses the GPU-based decoders?  I think gstreamer has some plugin support for various cards.

134

Applications and Porting / Re: Thunderbird not working Debian buster (1:68.12.0-1~deb10u1 & 1:78.4.0-1~deb10u1)

« on: November 07, 2020, 01:33:48 pm »

That looks like the system-provided version of sqlite

That is what is supposed to work

Debian's packages don't use that by default, that is why they fail to work

135

Applications and Porting / Re: Thunderbird not working Debian buster (1:68.12.0-1~deb10u1 & 1:78.4.0-1~deb10u1)

« on: November 07, 2020, 12:46:16 pm »

It depends on the version and it also depends on the flags that were set in the spec file or any patches applied during the build

You can check your thunderbird while it is running like this:

Code: [Select]

$ ps -C thunderbird
  PID TTY          TIME CMD
55840 pts/6    09:35:21 thunderbird

$ lsof -p 55840 | grep libsqli
thunderbi 55840 daniel  mem       REG               0,23               54138 /usr/lib/powerpc64le-linux-gnu/libsqlite3.so.0.8.6 (path dev=0,24)


The above output shows me that the running thunderbird process has used /usr/lib/powerpc64le-linux-gnu/libsqlite3.so.0.8.6 from the standard Debian package.  The path will be slightly different on a Fedora system.