Okay, I've can now circle the problem out. What did I do: * I used vanilla-3.9.2 kernel, but brougth drivers/gpu/drm/gma500 to the state of Linus' git tree commit id 0cdbee3e811b1bbb347c61814c8570658f2ab15c. This was shortly after gma500 moved out of staging * then I did "git format-patch 0cdbee3e811b1bbb347c61814c8570658f2ab15c..master drivers/gpu/drm/gma500/" * I then took the following patches to get this antique gma500 driver compile against kernel 3.9.2 with it's updated DRM: ** psb/0001-drm-gma500-fix-compile-error.patch ** psb/0002-drm-move-the-fb-bpp-depth-helper-into-the-core.patch ** psb/0020-drm-Replace-pitch-with-pitches-in-drm_framebuffer.patch ** psb/0095-gma500-remove-the-second-argument-of-k-un-map_atomic.patch ** psb/0151-drm-Make-the-.mode_fixup-operations-mode-argument-a-.patch (modified) ** psb/0152-drm-kill-reclaim_buffers-callback.patch ** psb/0175-mm-kill-vma-flag-VM_RESERVED-and-mm-reserved_vm-coun.patch ** psb/0178-drm-gma500-drm_connector_property-drm_object_propert.patch (modified) Now this franken-gma500_gfx driver runs perfectly with xserver-xorg-video-fbdev and doesn't have the displaced vertical screen issue. Now I can roll in other patches until I find the culprit. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
