AMD CPU locks up during video playback

[Ralf Mardorf]

On Thu, 4 Nov 2021 09:20:31 -0300, J. Paul Bissonnette wrote:
>On Thu, 4 Nov 2021 04:22:53 +0100
>Ralf Mardorf via ubuntu-users <ubuntu-users at lists.ubuntu.com> wrote:
>
>> On Wed, 3 Nov 2021 21:54:31 -0300, J. Paul Bissonnette wrote:  
>> >it is very likely your video card causing the issue. The GT710 can't
>> >cope with the high compression of the video streams, it could be
>> >decoding as low as 6-7 fps. where as a GT 1080 would be about 150fps
>> >   
>> 
>> Hi,
>> 
>> when I enabled hardware video acceleration on my Arch Linux Intel
>> graphics machine some time ago, it was said, that no Linux browser is
>> able to use it, whatever graphics we are using.
>> 
>> I googled today:
>> 
>> https://ubuntuhandbook.org/index.php/2021/08/enable-hardware-video-acceleration-va-api-for-firefox-in-ubuntu-20-04-18-04-higher/
>> https://wiki.archlinux.org/title/Hardware_video_acceleration#Configuring_applications
>> https://wiki.archlinux.org/title/Hardware_video_acceleration#Application_support
>> 
>> OTOH while using video acceleration on my slow Intel Celeron
>> dual-core makes a difference when using a media player (and probably
>> a browser, too ;), software decoding isn't a problem, hence the only
>> issue I see when using such a powerful Ryzen is climate change, due
>> to the 105W TDP, but decoding by software shouldn't cause trouble at
>> all. However, I doubt that any nowadays used graphics hardware
>> acceleration should cause an issue, but it is not enabled by
>> default, we users need to enable it on our Linux machines and
>> getting it working for browser usage is something quite new.
>> 
>> Regards,
>> Ralf
>>   
>
>Only way to know is give it a try, the CPU is definitely not the bottle
>neck. The NVidia GEForce GT 710 released 2014 has a PCIe 2.0 x 8 bus
>and is limited to a resolution of 1280x720 according to
>(https://www.techpowerup.com/gpu-specs/geforce-gt-710.c1990)
>
>Could there be a bus incompatibility? ASUS X570-Pro has a PCIe 4.0x 16
>bus?
>
>From experience with an older Zotec connected to a 4k TV, anything over
>1080p causes the video to act liked Mr Zenwiz describes.

After you emails and googling for

  geforce gt 710 2k monitor support

I realized that I don't have got the knowledge and seemingly a lot of
people talking about similar issues don't have it either. My guess is
that the problem is the combination of Linux, this card and the
monitor. I don't think it's related to the PCIe bus.

Actually I need a very good monitor for photo and video work, but I shy
away from buying such a monitor for my Linux PC. 1. Krita e.g. is
already unable to get the correct colour profile for my
simple/normal resolution sRGB EIZO [1], resp. I need to chose something
really freakish instead of sRGB. 2. I read about a lot of Linux software
that doesn't work at all with high resolution screens. So I fear that a
monitor that really requires a special colour profile and high
resolution will be a PITA.

[1] It's really a simple sRGB 1920x1080 16:9 monitor, just the DICOM
mode and pixel error class 1 might be outstanding for such an
inexpensive monitor, an EIZO FlexScan EV2450.