Bug#962861: RFP: drm-info -- Small utility to dump info about DRM devices
On Mon, Jun 15, 2020 at 09:35:56AM +0200, Guido Günther wrote:
> Package: wnpp
> Severity: wishlist
>
<snip>
>
> drm_info dumps information about available drm device like available
> devices, planes, encoders, crtcs and connectors and their DRM
> properties.
This looks like an useful utility and I did an initial packaging. But
while testing I get a segfault after printing all the information.
$ drm_info
Node: /dev/dri/card0
├───Driver: bochs-drm (bochs dispi vga interface (qemu stdvga)) version 1.0.0 (20130925)
│ ├───DRM_CLIENT_CAP_STEREO_3D supported
│ ├───DRM_CLIENT_CAP_UNIVERSAL_PLANES supported
│ ├───DRM_CLIENT_CAP_ATOMIC supported
│ ├───DRM_CLIENT_CAP_ASPECT_RATIO supported
│ ├───DRM_CLIENT_CAP_WRITEBACK_CONNECTORS supported
│ ├───DRM_CAP_DUMB_BUFFER = 1
│ ├───DRM_CAP_VBLANK_HIGH_CRTC = 1
│ ├───DRM_CAP_DUMB_PREFERRED_DEPTH = 24
│ ├───DRM_CAP_DUMB_PREFER_SHADOW = 0
│ ├───DRM_CAP_PRIME = 0
│ ├───DRM_CAP_TIMESTAMP_MONOTONIC = 1
│ ├───DRM_CAP_ASYNC_PAGE_FLIP = 0
│ ├───DRM_CAP_CURSOR_WIDTH = 64
│ ├───DRM_CAP_CURSOR_HEIGHT = 64
│ ├───DRM_CAP_ADDFB2_MODIFIERS = 0
│ ├───DRM_CAP_PAGE_FLIP_TARGET = 0
│ ├───DRM_CAP_CRTC_IN_VBLANK_EVENT = 1
│ ├───DRM_CAP_SYNCOBJ = 0
│ └───DRM_CAP_SYNCOBJ_TIMELINE = 0
Segmentation fault
I also tried with "drm_info -j" and that works pergectly without any error.
Note: I have used Debian packages of json-c, libdrm and libpci. It will
be good to have a manpage along with the fix for segfault.
--
Regards
Sudip
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