[Bug 83605] [HD 4400] failed to set mode: Permission denied [13]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83605

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |NOTOURBUG

--- Comment #3 from Chris Wilson <chris at chris-wilson.co.uk> ---
systemd/logind passes an fd to X to use, and then promptly removes privileges
from that fd for modesetting.


[  111.207166] [drm:drm_ioctl] pid=3778, dev=0xe200, auth=1,
DRM_IOCTL_SET_MASTER
[  111.207293] [drm:drm_ioctl] pid=3944, dev=0xe200, auth=1,
DRM_IOCTL_SET_VERSION
[  111.207299] [drm:drm_ioctl] pid=3944, dev=0xe200, auth=1,
DRM_IOCTL_GET_UNIQUE
[  111.207301] [drm:drm_ioctl] pid=3944, dev=0xe200, auth=1,
DRM_IOCTL_GET_UNIQUE
[  111.207305] [drm:drm_ioctl] pid=3944, dev=0xe200, auth=1, DRM_IOCTL_VERSION
[  111.207308] [drm:drm_ioctl] pid=3944, dev=0xe200, auth=1, DRM_IOCTL_VERSION
[  111.288761] [drm:intel_crtc_set_config] [CRTC:7] [FB:40] #connectors=1 (x y)
(0 0)
[  111.288765] [drm:intel_set_config_compute_mode_changes] computed changes for
[CRTC:7], mode_changed=0, fb_changed=0
[  111.288767] [drm:intel_modeset_stage_output_state] [CONNECTOR:18:eDP-1] to
[CRTC:7]
[  111.288770] [drm:drm_framebuffer_reference] ffff880234cf39c0: FB ID: 40 (3)
[  111.288771] [drm:drm_framebuffer_unreference] ffff880234cf39c0: FB ID: 40
(4)
[  111.288772] [drm:intel_crtc_set_config] [CRTC:11] [NOFB]
[  111.288774] [drm:intel_set_config_compute_mode_changes] computed changes for
[CRTC:11], mode_changed=0, fb_changed=0
[  111.288775] [drm:intel_modeset_stage_output_state] [CONNECTOR:18:eDP-1] to
[CRTC:7]
[  111.288777] [drm:drm_framebuffer_reference] ffff880234cf39c0: FB ID: 40 (3)
[  111.288778] [drm:drm_framebuffer_unreference] ffff880234cf39c0: FB ID: 40
(4)
[  111.288778] [drm:intel_crtc_set_config] [CRTC:15] [NOFB]
[  111.288780] [drm:intel_set_config_compute_mode_changes] computed changes for
[CRTC:15], mode_changed=0, fb_changed=0
[  111.288781] [drm:intel_modeset_stage_output_state] [CONNECTOR:18:eDP-1] to
[CRTC:7]
[  111.288782] [drm:drm_framebuffer_reference] ffff880234cf39c0: FB ID: 40 (3)
[  111.288783] [drm:drm_framebuffer_unreference] ffff880234cf39c0: FB ID: 40
(4)
[  111.294820] [drm:drm_ioctl] pid=3778, dev=0xe200, auth=1,
DRM_IOCTL_DROP_MASTER

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