vainfo does not load the nvidia va driver on x11, but okay on wayland #675

marioroy · 2023-01-07T11:24:18Z

It requires setting LIBVA_DRIVER_NAME=nvidia for the vainfo utility to succeed on x11.

x11

$ vainfo
Trying display: wayland
Trying display: x11
libva info: VA-API version 1.17.0
libva error: vaGetDriverNameByIndex() failed with unknown libva error, driver_name = (null)
vaInitialize failed with error code -1 (unknown libva error),exit

$ LIBVA_DRIVER_NAME=nvidia vainfo
Trying display: wayland
Trying display: x11
libva info: VA-API version 1.17.0
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_0
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.17 (libva 2.17.0)
vainfo: Driver version: VA-API NVDEC driver [egl backend]
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileVC1Simple              : VAEntrypointVLD
      VAProfileVC1Main                : VAEntrypointVLD
      VAProfileVC1Advanced            : VAEntrypointVLD
      <unknown profile>               : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileHEVCMain               : VAEntrypointVLD
      VAProfileVP8Version0_3          : VAEntrypointVLD
      VAProfileVP9Profile0            : VAEntrypointVLD
      VAProfileAV1Profile0            : VAEntrypointVLD
      VAProfileHEVCMain10             : VAEntrypointVLD
      VAProfileHEVCMain12             : VAEntrypointVLD
      VAProfileVP9Profile2            : VAEntrypointVLD

wayland

$ vainfo
Trying display: wayland
libva info: VA-API version 1.17.0
libva info: Trying to open /usr/lib64/dri/nvidia_drv_video.so
libva info: Found init function __vaDriverInit_1_0
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.17 (libva 2.17.0)
vainfo: Driver version: VA-API NVDEC driver [egl backend]
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileVC1Simple              : VAEntrypointVLD
      VAProfileVC1Main                : VAEntrypointVLD
      VAProfileVC1Advanced            : VAEntrypointVLD
      <unknown profile>               : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileHEVCMain               : VAEntrypointVLD
      VAProfileVP8Version0_3          : VAEntrypointVLD
      VAProfileVP9Profile0            : VAEntrypointVLD
      VAProfileAV1Profile0            : VAEntrypointVLD
      VAProfileHEVCMain10             : VAEntrypointVLD
      VAProfileHEVCMain12             : VAEntrypointVLD
      VAProfileVP9Profile2            : VAEntrypointVLD

The text was updated successfully, but these errors were encountered:

benjarobin · 2023-01-09T22:19:24Z

At this link more information about the problem: https://bbs.archlinux.org/viewtopic.php?pid=2078521#p2078521

I did run the following a bisect to find the problematic commit :

git bisect start
git bisect bad 8d676957cd0532e2b3f7181e51978c652212dbe1
git bisect good 29e62907a5c292
Bissection : 22 révisions à tester après ceci (à peu près 5 étapes)
[552712b0259c00ca17be7f5472e994ea0d159cf0] ci: add meson permutation in the Ubuntu builds

git bisect good
Bissection : 11 révisions à tester après ceci (à peu près 4 étapes)
[d4f5dad4cd51c6a5000a1562d842f55a68eb154a] ci: style: use prettier formatting

git bisect bad
Bissection : 5 révisions à tester après ceci (à peu près 3 étapes)
[197a2e3c212755ebf50d5fc21c66c7b7cf21b401] meson: stop using configure_file copy=true

git bisect good
Bissection : 2 révisions à tester après ceci (à peu près 2 étapes)
[252405c469d248b2d8e86d78a347e4ebfb6b71bf] x11: move all FGLRX code to va_fglrx.c

git bisect good
Bissection : 0 révision à tester après ceci (à peu près 1 étape)
[c1e09e2b0301c923c06a4a62204ed7e6d40005ff] configure: add 'with-legacy' for emgd, nvctrl and fglrx

git bisect bad
Bissection : 0 révision à tester après ceci (à peu près 0 étape)
[a26852e1687ddba3b51232b586c5d68e4263f135] meson: add 'with-legacy' for emgd, nvctrl and fglrx

git bisect bad
a26852e1687ddba3b51232b586c5d68e4263f135 is the first bad commit
commit a26852e1687ddba3b51232b586c5d68e4263f135
Author: Emil Velikov <emil.velikov@collabora.com>
Date:   Tue Jul 12 18:13:04 2022 +0100

    meson: add 'with-legacy' for emgd, nvctrl and fglrx

    None of this code has been relevant (for distributions) for well over a
    decade. So move them behind a "with-legacy" toggle.

    By default we disable these options, since distributions using the meson
    build do not have the legacy components.

    Obviously anyone can toggle each piece on as-needed basis.

    v2:
     - s|enable-legacy|with-legacy|
     - split autotools equivalent to a separate patch

    Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

 meson.build                  | 11 +++++++++++
 meson_options.txt            |  1 +
 va/wayland/va_wayland.c      |  2 ++
 va/wayland/va_wayland_emgd.c |  5 +++++
 va/wayland/va_wayland_emgd.h |  4 ++++
 va/x11/va_fglrx.c            |  5 +++++
 va/x11/va_fglrx.h            |  4 ++++
 va/x11/va_nvctrl.c           |  5 +++++
 va/x11/va_nvctrl.h           |  4 ++++
 va/x11/va_x11.c              |  4 ++++
 10 files changed, 45 insertions(+)

I am going to try to build libva with the bluid option with_legacy

benjarobin · 2023-01-09T22:29:35Z

Building with -Dwith_legacy=nvctrl fixes the problem. I am using nvidia-470xx-utils 470.161.03-2

XinfengZhang · 2023-01-10T02:42:01Z

it is from #617 , @evelikov , looks https://github.com/elFarto/nvidia-vaapi-driver still need nvctrl?

evelikov · 2023-01-10T07:32:01Z

One can enable the option if they need to - that's why the option exists

Edit: off the top of my head nvidia could support DRI3, which will avoid such issues. Albeit being closed source, fixing that is up-to the Nvidia team. Plus va/drm should just work I believe

elFarto · 2023-01-10T08:28:13Z

@XinfengZhang We don't use/need nvctrl within the driver itself. We only need libva to pick the correct driver for NVIDIA cards.

evelikov · 2023-01-30T14:31:20Z

I've been trying to reproduce the crashes on my intel+nvidia box for over a week, to no avail so far. Perhaps because I have a Intel + Nvidia combo?

@benjarobin picking up the vainfo crash - can you rebuild libva + nvidia libva driver with debug symbols so the backtrace is more useful?

Looking through the code-base - the nvidia driver doesn't have any X related code and the only XDisplayString instance in libva is in the fglrx code (disabled by default) and should be unreachable if you've got Nvidia GPU.

Thanks

fenrus75 · 2023-01-30T15:02:36Z

(we reluctantly changed our config; we're phasing out X11 server support from the distro basically and this is a step in the opposite direction... but it's just a config so shrug)

…

On Mon, Jan 30, 2023 at 6:31 AM Emil Velikov ***@***.***> wrote: I've been trying to reproduce the crashes on my intel+nvidia box for over a week, to no avail so far. Perhaps because I have a Intel + Nvidia combo? @benjarobin <https://github.com/benjarobin> picking up the vainfo crash - can you rebuild libva + nvidia libva driver with debug symbols so the backtrace is more useful? Looking through the code-base - the nvidia driver doesn't have any X related code and the only XDisplayString instance in libva is in the fglrx code (disabled by default) and should be unreachable if you've got Nvidia GPU. Thanks — Reply to this email directly, view it on GitHub <#675 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAJ54FNKJPTMPU4M4NVWUY3WU7GEHANCNFSM6AAAAAATT4MRAQ> . You are receiving this because you were mentioned.Message ID: ***@***.***>

benjarobin · 2023-01-30T16:34:35Z

@benjarobin picking up the vainfo crash - can you rebuild libva + nvidia libva driver with debug symbols so the backtrace is more useful?

This is already with debug symbol...

Looking through the code-base - the nvidia driver doesn't have any X related code and the only XDisplayString instance in libva is in the fglrx code (disabled by default) and should be unreachable if you've got Nvidia GPU.

I check the source code and I found the following code path which call XDisplayString when executing vainfo --display drm --device /dev/dri/renderD128:

__vaDriverInit_1_13() implemented in vdpau_driver.c by this line VAStatus VA_DRIVER_INIT_FUNC(void *ctx)
Call vdpau_Initialize_Current() which is implemented in vdpau_driver_template.h by this line static VAStatus FUNC(Initialize)(VA_DRIVER_CONTEXT_P ctx)
Which call vdpau_common_Initialize() very early, which is implemented in vdpau_driver.c
The vdpau_common_Initialize() calls immediately (the first line of the function): XDisplayString

evelikov · 2023-01-30T18:18:40Z

@benjarobin you're a star - didn't realise you're using the vdpau wrapper/driver. There's a bug in that driver - will post a patch tomorrow at some point.

marioroy · 2023-01-31T14:57:51Z

@fenrus75 (we reluctantly changed our config; we're phasing out X11 server support from the distro basically and this is a step in the opposite direction... but it's just a config so shrug)

This request was made for OS vendors still using X11. For Clear Linux, using Wayland and NVIDIA graphics, I figured the steps needed to make Chrome and derivatives work on 140 dpi or HiDPI displays. It turns out that one must set text-scaling-factor back to 1.0, enable an experimental Wayland feature scale-monitor-framebuffer, and set the display scale closely matching the display DPI 100%, 125%, 150%, ....

gsettings set org.gnome.desktop.interface text-scaling-factor 1.0
gsettings set org.gnome.mutter experimental-features "['scale-monitor-framebuffer']"
once in Wayland, set Displays > Scale in GNOME settings

Clear Linux, running Wayland and NVIDIA graphics, is working with a 140 DPI display. I will update the README later this week.

evelikov · 2023-01-31T18:25:14Z

@benjarobin feel free to pick xtknight/vdpau-va-driver-vp9@34f166a - this is the most minimalist fix required. Overall the driver needs a bunch more fixes, although there's no upstream so any patches will go to the void.

@marioroy thanks for the context - without the Clear Linux mention it was pretty confusing why Intel devs would care about Nvidia libva drivers ;-)

I'm in the process of removing X11 from the cuda base nvidia driver and the vdpau wrapper can be fixed with the above.

I believe we can close this issue now.

benjarobin · 2023-01-31T22:19:14Z

The official upstream git is https://cgit.freedesktop.org/vaapi/vdpau-driver, but it has been dead for 10 years...

marioroy · 2023-02-01T23:38:33Z

@evelikov thanks for fixing the vainfo output for NVIDIA graphics. The mysterious <unknown profile> line is resolved.

@fenrus75 thanks for not rushing X11 removal in Clear Linux. There was a time when I felt like the avatars by @benjarobin, trying to get Wayland working. All is well now. Wayland works great including proper display scaling.

The animated avatars are cool, @benjarobin. Wow!

marioroy mentioned this issue Jan 7, 2023

Can't get Firefox video hardware decoding to work elFarto/nvidia-vaapi-driver#155

Closed

marioroy closed this as completed Feb 1, 2023

This was referenced Jan 14, 2024

OBS 29 linux crash segmentation fault on startup obsproject/obs-studio#8056

Closed

Add nvidia-drm to the DRM driver map #554

Merged

mirh referenced this issue in elFarto/nvidia-vaapi-driver Feb 3, 2024

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vainfo does not load the nvidia va driver on x11, but okay on wayland #675

vainfo does not load the nvidia va driver on x11, but okay on wayland #675

marioroy commented Jan 7, 2023 •

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benjarobin commented Jan 9, 2023 •

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benjarobin commented Jan 9, 2023

XinfengZhang commented Jan 10, 2023

evelikov commented Jan 10, 2023 •

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elFarto commented Jan 10, 2023

evelikov commented Jan 30, 2023

fenrus75 commented Jan 30, 2023 via email

benjarobin commented Jan 30, 2023 •

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evelikov commented Jan 30, 2023

marioroy commented Jan 31, 2023 •

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evelikov commented Jan 31, 2023

benjarobin commented Jan 31, 2023

marioroy commented Feb 1, 2023 •

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vainfo does not load the nvidia va driver on x11, but okay on wayland #675

vainfo does not load the nvidia va driver on x11, but okay on wayland #675

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marioroy commented Jan 7, 2023 • edited Loading

x11

wayland

benjarobin commented Jan 9, 2023 • edited Loading

benjarobin commented Jan 9, 2023

XinfengZhang commented Jan 10, 2023

evelikov commented Jan 10, 2023 • edited Loading

elFarto commented Jan 10, 2023

evelikov commented Jan 30, 2023

fenrus75 commented Jan 30, 2023 via email

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evelikov commented Jan 30, 2023

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