1. 30 Mar, 2020 1 commit
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  3. 26 Mar, 2020 1 commit
    • Hans de Goede's avatar
      drm/vboxvideo: Add missing remove_conflicting_pci_framebuffers call, v2 · a65a97b4
      Hans de Goede authored
      The vboxvideo driver is missing a call to remove conflicting framebuffers.
      
      Surprisingly, when using legacy BIOS booting this does not really cause
      any issues. But when using UEFI to boot the VM then plymouth will draw
      on both the efifb /dev/fb0 and /dev/drm/card0 (which has registered
      /dev/fb1 as fbdev emulation).
      
      VirtualBox will actual display the output of both devices (I guess it is
      showing whatever was drawn last), this causes weird artifacts because of
      pitch issues in the efifb when the VM window is not sized at 1024x768
      (the window will resize to its last size once the vboxvideo driver loads,
      changing the pitch).
      
      Adding the missing drm_fb_helper_remove_conflicting_pci_framebuffers()
      call fixes this.
      
      Changes in v2:
      -Make the drm_fb_helper_remove_conflicting_pci_framebuffers() call one of
       the first things we do in our probe() method
      
      Cc: stable@vger.kernel.org
      Fixes: 2695eae1
      
       ("drm/vboxvideo: Switch to generic fbdev emulation")
      Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
      Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
      Link: https://patchwork.freedesktop.org/patch/msgid/20200325144310.36779-1-hdegoede@redhat.com
      a65a97b4
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