Cannot Support Dri With Frame Buffer Width

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Frame Buffer Library — The Linux Kernel documentation

    https://dri.freedesktop.org/docs/drm/driver-api/frame-buffer.html
    Frame Buffer Library¶ The frame buffer drivers depend heavily on four data structures. These structures are declared in include/linux/fb.h. They are fb_info, fb_var_screeninfo, fb_fix_screeninfo and fb_monospecs. The last three can be made available to and from userland. fb_info defines the current state of a particular video card.

Direct Rendering Infrastructure / List dri-devel Archives

    https://sourceforge.net/p/dri/mailman/dri-devel/?viewmonth=200304&viewday=27
    It allocates AGP memory for all the framebuffer stuff - the chip doesn't have a frame-buffer of its own (well, the BIOS will have pre-allocated a small "private area" at bootup, but that one is usually just a few megs in size). So the AGP allocations are used for just plain frame buffer allocation. Linus

4.2. Video Overlay Interface - Direct Rendering Infrastructure

    https://dri.freedesktop.org/docs/drm/media/uapi/v4l/dev-overlay.html
    4.2.4.1. struct v4l2_window¶ struct v4l2_rect w Size and position of the window relative to the top, left corner of the frame buffer defined with VIDIOC_S_FBUF.The window can extend the frame buffer width and height, the x and y coordinates can be negative, and it can lie completely outside the frame buffer. The driver clips the window accordingly, or if that is not possible, modifies its ...

DRI User Guide - DRI Wiki

    http://dri.sourceforge.net/doc/DRIuserguide.html
    The DRI Compilation Guide explains how to download, compile and install the DRI for yourself. 12.3 Support. The DRI-users mailing list at SourceForge is a forum for people to discuss DRI problems. In the future there may be IHV and Linux vendor support resources for the DRI.

eclipse PurpleFloyd's Blog

    https://purplefloyd.wordpress.com/tag/eclipse/
    Apr 08, 2008 · Cannot support DRI with frame buffer width > 2048. In other words, the driver was telling me my virtual desktop size (3200 pixels wide) was too big for the hardware to support. Odd, I’ve had this working before I thought. I finally discovered that one of the caveats of XRandR is that it: …hardware does not support unlimited coordinates.

Framebuffer (Linux) - Toradex

    https://developer.toradex.com/knowledge-base/framebuffer-(linux)
    The framebuffer (fbdev) is a character device providing access to graphics hardware. Beside the framebuffer, other interfaces exist to access graphics hardware such as the DRI (direct rendering interface) or proprietary interfaces (NVIDIA drivers). Typically, the framebuffer doesn't support any 2D/3D hardware acceleration.

[PATCHv2,2/3] ARM: drm: Intel FPGA VIP Frame Buffer II drm ...

    https://patchwork.freedesktop.org/patch/152580/
    "Intel FPGA VIP Frame Buffer II DRM Driver" ( rev: 1) in ... This driver provides support for the > +# Direct Rendering Infrastructure (DRI) ... in the simple display pipe's atomic_check, make sure that the mode chosen is the width/height you can support.

DRI Driver Features

    http://dri.sourceforge.net/doc/dri_driver_features.phtml
    NOTE: This information reflects the status of the drivers in the DRI CVS trunk, unless a branch tag is indicated. The currently released XFree86/DRI drivers available from XFree86.org, OS distributions, etc. may not support all the features listed here.

minigui-docs/Release-Notes-for-MiniGUI-4.0.md at master ...

    https://github.com/VincentWei/minigui-docs/blob/master/supplementary-docs/Release-Notes-for-MiniGUI-4.0.md
    MiniGUI mainly uses this library to support dumb frame buffer (no hardware acceleration). However, you can write a driver for your graphics card or GPU to implement the hardware accelerating features. To avoid modifying the MiniGUI source code when supporting a new GPU, the …



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