Re: [oS-en] Problem with VLC on Intel machines.

30 Mar 2024

      Hello,

In the Message; 

  Subject    : Re: [oS-en] Problem with VLC on Intel machines.
  Message-ID : <20240329162926.19a5d073@acer-suse.fritz.box>
  Date & Time: Fri, 29 Mar 2024 16:29:26 +0000

[DH] == Dave Howorth <dave@howorth.org.uk> has written:

DH> On Fri, 29 Mar 2024 21:34:28 +0900
DH> Masaru Nomiya <nomiya@lake.dti.ne.jp> wrote:

MN>> Now it's my turn to sleep.

DH> Is one of those businesses called "Sleep Hygiene" and is one part of
DH> that stopping using TV and computer screens two hours before you go to
DH> bed? (hint: the answer is yes)

DH> And are you?

It's entirely correct.

In Japan, people are actively telling not to use their phones before
going to bed because of sleep problems.

I don't own a TV or a smartphone, but I understand that screens are
bad for your eyes and even your brain.

Sorry for Off-topic、all．

Anyway, I'll try to be more precise.

[...]
	Isengard:~ # grep -iE 'vdpau | dri driver' /var/log/Xorg.0.log
	[   201.567] (II) intel(0): [DRI2]   DRI driver: iris
	[   201.567] (II) intel(0): [DRI2]   VDPAU driver: va_gl
	Isengard:~ #
[...]

Anyway, I'm going to write more precisely because it is important to
use vlc.

The message 'VDPAU driver: va_gl' in the second line appears when the
libva driver is incorrectly configured, and does not appear when the
configuration is correct.

You can find out how it is configured with;

   $ env | grep LIBVA_DRIVER.

You can also check if the LIBVA_DRIVER setting is correct with;

   $ vainfo

If the setting is correct, the following result is displayed.

   $ vainfo

   Trying display: wayland
   Trying display: x11
   libva info: VA-API version 1.21.0
   libva error: vaGetDriverNames() failed with unknown libva error
   libva info: User environment variable requested driver 'nvidia
   libva info: Trying to open /usr/lib64/dri/nvidia_drv_video.so
   libva info: Found init function __vaDriverInit_1_20
   libva info: va_openDriver() returns 0
   vainfo:: Found init function __vaDriverInit_1_20 VA-API version: 1.21 (libva 2.20.0)
   vainfo: va_openDriverInit_1_20 Driver version: 1.21 (libva 2.20.0) Splitted-Desktop Systems VDPAU backend for VA-API - 0.7.4
   vainfo: Driver version: Splitted-Desktop Systems Supported profiles and entrypoints

    	   VAProfileMPEG2Simple : VAEntrypointVLD
	   VAProfileMPEG2Main : VAEntrypointVLD
	   VAProfileMPEG4Simple : VAEntrypointVLD
	   VAProfileMPEG4AdvancedSimple : VAEntrypointVLD
	   <unknown profile> : VAEntrypointVLD
	   VAProfileH264Main : VAEntrypointVLD
	   VAProfileH264High : VAEntrypointVLD
	   VAProfileVC1Simple : VAEntrypointVLD
	   VAProfileVC1Main : VAEntrypointVLD
	   VAProfileVC1Advanced : VAEntrypointVLD

If the setting is not correct, it will look like this;

   $ vainfo
   Trying display: wayland
   Trying display: x11
   libva info: VA-API version 1.21.0
   libva error: vaGetDriverNames() failed with unknown libva error
   libva info: User environment variable requested driver 'i950
   libva info: Trying to open /usr/lib64/dri/i950_drv_video.so
   libva info: va_openDriver() returns -1
   vaInitialize failed with error code -1 (unknown libva error),exit

If the configuration is incorrect, you must add the followings to the
.profile;

　　  export LIBVA_DRIVERS_PATH=/usr/lib64/dri
　　  export LIBVA_DRIVER_NAME=[correct driver name]

If it is correct, you do not need to do anything.

As can be inferred from the above, for example, whether
iHD_drv_video.so can be used as a libva driver can be determined by
executing;

	$ LIBVA_DRIVER_NAME=iHD vainfo

HTHs.

Best Regards.

---
┏━━┓彡  Masaru Nomiya                      mail-to: nomiya @ lake.dti.ne.jp
┃＼／彡
┗━━┛  "Companies have come to view generative AI as a kind of monster that
	  must be fed at all costs―even if it isn’t always clear what exactly
	  that data is needed for or what those future AI systems might end up
	  doing."

        -- Generative AI Is Making Companies Even More Thirsty for Your Data --