[[framebuffer]]
 
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framebuffer [2015/06/08 01:48]
 framebuffer [2022/04/16 12:23] (current)
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 +=====  http://www.directfb.org , irc://irc.freenode.net/#DirectFB =====
 +
 +  file:///usr/src/linux/Documentation/fb/vesafb.txt
 +  file:///usr/share/doc/fbset/FAQ
 +
 + 
 +  * http://tldp.org/HOWTO/Framebuffer-HOWTO.html
 +  * http://home.tvd.be/cr26864/Linux/fbdev/
 +
 +
 +===== [[VGA]] =====
 +
 +  sudo modprobe -v vga16fb # must be compiled
 +
 +  cat /proc/fb
 +  0 VGA16 VGA
 +
 +
 +  sudo cat /etc/X11/xorg.conf | modeline2fb > /etc/fb.modes
 +
 +
 +=== [[RzR]]'s tests===
 +
 +
 +
 +
 +Tests done on my [[AmiloA]] [[Laptop]] on [[Debian]] :
 +
 +  Sat Sep  3 03:34:11 CEST 2005
 +  Linux nrv 2.6.13-k7-amiloa #5 Tue Aug 30 20:47:34 CEST 2005 i686 GNU/Linux
 +
 +  modprobe radeonfb
 +
 +  lsmod | grep fb
 +  radeonfb               88640  0
 +  i2c_algo_bit            8840  1 radeonfb
 +  i2c_core               17296  4 radeonfb,i2c_algo_bit,i2c_ali15x3,i2c_ali1535
 +
 +  find /lib/modules/`uname -r` -name "*fb*"
 +  /lib/modules/2.6.13-k7-amiloa/kernel/drivers/video/aty/radeonfb.ko
 +  /lib/modules/2.6.13-k7-amiloa/kernel/drivers/video/vfb.ko
 +
 +
 +
 +==== Radeon ====
 +  grep FB /usr/src/linux/.config
 +  CONFIG_FB_RADEON_OLD=m
 +  CONFIG_FB_RADEON=m
 +  CONFIG_FB_RADEON_I2C=y
 +
 +  #rzr@nrv:linux/$ cat /proc/fb
 +  0 ATI Radeon C6
 +  1 VESA VGA
 +
 +  $ fbset -i # sudo apt-get install fbset
 +
 +  mode "1024x768-60"
 +    # D: 65.003 MHz, H: 48.365 kHz, V: 60.006 Hz
 +    geometry 1024 768 1024 768 8
 +    timings 15384 168 16 30 2 136 6
 +    hsync high
 +    vsync high
 +    rgba 8/0,8/0,8/0,0/0
 +  endmode
 +
 +  Frame buffer device information:
 +    Name        : ATI Radeon C6
 +    Address     : 0xf8000000
 +    Size        : 33554432
 +    Type        : PACKED PIXELS
 +    Visual      : PSEUDOCOLOR
 +    XPanStep    : 8
 +    YPanStep    : 1
 +    YWrapStep   : 0
 +    LineLength  : 1024
 +    MMIO Address: 0xf0500000
 +    MMIO Size   : 16384
 +    Accelerator : ATI Radeon family
 +
 +
 +
 +
 +ToDo :
 +
 +  grep FB /usr/src/linux/.config
 +  CONFIG_FB=y
 +  CONFIG_FB_VGA16=m
 +  # CONFIG_FB_VESA is not set
 +  CONFIG_FB_RADEON_OLD=m
 +  CONFIG_FB_RADEON=m
 +  CONFIG_FB_RADEON_I2C=y
 +  CONFIG_FB_VIRTUAL=m
 +
 +  grep FRAME /usr/src/linux/.config
 +  CONFIG_FRAMEBUFFER_CONSOLE=m # fbcon ?
 +  # CONFIG_FRAME_POINTER is not set
 +
 +
 +=== VESA===
 +
 +links2 works fine not mplayer,  I am logging  errors , warnings if it helps : http://rzr.online.fr/q/FrameBuffer
 +
 +  grep FB /usr/src/linux/.config
 +  CONFIG_FB_VGA16=y
 +  CONFIG_FB_VESA=y
 +
 +  # (*) DirectFB/Graphics: MMX Software Rasterizer 0.6 (convergence integrated media GmbH)
 +
 +  cat /proc/fb
 +  0 VESA VGA
 +  1 VGA16 VGA
 +
 +[[WebBrowser]]
 +
 +  sudo apt-get install links2 # [[Debian]]
 +
 +  links2 -g http://rzr.online.fr/q/FrameBuffer
 +     ---------------------- DirectFB v0.9.20 ---------------------
 +             (c) 2000-2002  convergence integrated media GmbH
 +             (c) 2002-2003  convergence GmbH
 +      -----------------------------------------------------------
 +
 +  (*) Single Application Core. (with MMX support) (2005-01-31 07:23)
 +  (*) DirectFB/misc/memcpy: using MMXEXT optimized memcpy()
 +  (*) DirectFB/InputDevice: Keyboard 0.9 (convergence integrated media GmbH)
 +  (*) DirectFB/InputDevice: IMPS/2 Mouse (1) 0.9 (convergence integrated media GmbH)
 +  (*) DirectFB/InputDevice: IMPS/2 Mouse (2) 0.9 (convergence integrated media GmbH)
 +  (*) MMX detected and enabled
 +  (*) DirectFB/GraphicsDevice: MMX Software Rasterizer 0.6 (convergence integrated media GmbH)
 +  (===) DirectFB/core/fbdev: Panning display failed!===
 +    *-> Invalid argument
 +  (*) DirectFB/Layer: Enabled 'FBDev Primary Layer'.
 +  (===) DirectFB/core/fbdev: Panning display failed!===
 +    *-> Invalid argument
 +
 +
 +[[VideoPlayer]]
 +
 +  mplayer -vo directfb http://rzr.online.fr/docs/java/diet3d-nokia6630.mov 2>&1 >    ~/mplayer-log.txt
 +
 +  VDec: vo config request - 352 x 288 (preferred csp: Planar YV12)
 +  DirectFB: Format query: Planar YV12
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Format query: Planar I420
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  Could not find matching colorspace - retrying with -vf scale...
 +  Opening video filter: [[scale]]
 +  DirectFB: Format query: Planar YV12
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Format query: Planar I420
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Format query: Packed YUY2
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Format query: Packed UYVY
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Format query: BGRA
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Test format - added layer 0 scale/pos 0
 +  DirectFB: Format query: BGRA
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Test format - added layer 0 scale/pos 0
 +  DirectFB: Format query: BGRA
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Test format - added layer 0 scale/pos 0
 +  DirectFB: Format query: BGRA
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Test format - added layer 0 scale/pos 0
 +  VDec: using Planar YV12 as output csp (no 0)
 +  Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
 +  DirectFB: Format query: BGRA
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Test format - added layer 0 scale/pos 0
 +  SwScaler: using unscaled Planar YV12 -> BGRA special converter
 +  DirectFB: Format query: BGRA
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Test format - added layer 0 scale/pos 0
 +  VO: [[directfb]] 352x288 => 384x288 BGRA
 +  DirectFB: Format query: BGRA
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Test format - added layer 0 scale/pos 0
 +  DirectFB: Config entered [[352x288]]
 +  DirectFB: With requested format: BGRA
 +  (=====)  *** CAUTION [[letting unprivileged IDirectFBDisplayLayer::GetSurface() call pass until cooperative level handling is finished]] *** ../../../src/display/idirectfbdisplaylayer.c (147)=====
 +  DirectFB: Config - looking for suitable layer
 +  DirectFB: Test format - layer 0 scale/pos 0
 +  DirectFB: Test format - added layer 0 scale/pos 0
 +  DirectFB: Config - layer 0
 +  DirectFB: Config - switching layer to exclusive mode
 +  DirectFB: Layer reports format:201002
 +  DirectFB: Desired pixelformat: 401804
 +  DirectFB: Config - changing layer configuration (format)
 +  (===) DirectFB/core/fbdev: Panning display failed!===
 +    *-> Invalid argument
 +  (=====)  *** CAUTION [[setting new configuration failed]] *** ../../../src/core/layers.c (865)=====
 +  (===) DirectFB/core/fbdev: Panning display failed!===
 +    *-> Invalid argument
 +  DirectFB: Double buffering is active
 +  DirectFB: Requested field parity: Don't care
 +  DirectFB: Config - flipping = 1
 +  DirectFB: Config - surface size = 640x480
 +  DirectFB: Frame is active.
 +  DirectFB: Config finished [[384x288]] - [[352x288]]
 +  New_Face failed. Maybe the font path is wrong. 2 ??% ??% ??,?% 0 0 86%
 +  Please supply the text font file (~/.mplayer/subfont.ttf).
 +  subtitle font: load_sub_face failed.
 +  DirectFB: Uninit entered0.004 ct:  0.064  32/ 32  9% 45%  5.3% 0 0 67%
 +  DirectFB: Releasing frame
 +  DirectFB: Releasing layer
 +  (===) DirectFB/core/fbdev: Panning display failed!===
 +    *-> Invalid argument
 +  DirectFB: Releasing primary
 +  DirectFB: Uninit done.
 +
 +
 +==== [[OpenSource]] =====
 +
 +My test of direct fb :
 +
 +  * http://directfb.org/index.php?path=Main%2FSupport%2FGraphics
 +
 +  ed2k://|file|DirectFB-0.9.22.tar.gz|1977888|e77a9fcbbc86800fcfac9cebe7050046|
 +
 +  ./configure  --prefix=/usr/local/opt/directfb-0.9.22 && make && make install
 +
 +
 +  # Making install in include
 +  # make[[1]]: Entering directory `/tmp/DirectFB-0.9.22/include'
 +  # make[[1]]: *** No rule to make target `install'.  Stop.
 +  make -k install
 +
 +  # now testing
 +  /usr/local/opt/directfb-0.9.22/bin/dfbinfo
 +  #
 +  #      ---------------------- DirectFB v0.9.22 ---------------------
 +  #              (c) 2000-2002  convergence integrated media GmbH
 +  #             (c) 2002-2004  convergence GmbH
 +  #        -----------------------------------------------------------
 +  #
 +  # (*) DirectFB/Core: Single Application Core. (2005-09-03 01:04)
 +  # (*) Direct/Memcpy: Using SSE optimized memcpy()
 +  # (*) Direct/Thread: Running 'VT Switcher' (CRITICAL, 21799)...
 +  # (*) Direct/Thread: Running 'PS/2 Input' (INPUT, 21804)...
 +  #  (=====)  *** UNIMPLEMENTED [[fusion_reactor_set_lock]] *** [[reactor.c:802]]=====
 +  # (*) DirectFB/Input: IMPS/2 Mouse 1.0 (Convergence GmbH)
 +  # (*) Direct/Thread: Running 'Linux Input' (INPUT, 21805)...
 +  # (*) DirectFB/Input: AT Translated Set 2 keyboard (1) 0.1 (convergence integrated media GmbH)
 +  # (*) Direct/Thread: Running 'Linux Input' (INPUT, 21806)...
 +  # (*) DirectFB/Input: PS/2 Mouse (2) 0.1 (convergence integrated media GmbH)
 +  # (*) Direct/Thread: Running 'Linux Input' (INPUT, 21807)...
 +  # (*) DirectFB/Input: AlpsPS/2 ALPS GlidePoint (3) 0.1 (convergence integrated media GmbH)
 +  # (*) Direct/Thread: Running 'Keyboard Input' (INPUT, 21808)...
 +  # (*) DirectFB/Input: Keyboard 0.9 (convergence integrated media GmbH)
 +  # (*) DirectFB/Genefx: MMX detected and enabled
 +  # (*) DirectFB/Graphics: MMX Software Rasterizer 0.6 (convergence integrated media GmbH)
 +  # (*) DirectFB/Core/WM: Default 0.2 (Convergence GmbH)
 +
 +
 +  # Screen (00) FBDev Primary Screen            (primary screen)
 +  #    Caps: VSYNC POWER_MANAGEMENT
 +  #
 +  #      Layer (00) FBDev Primary Layer             (primary layer)
 +  #         Type:    GRAPHICS
 +  #         Caps:    SURFACE BRIGHTNESS CONTRAST SATURATION
 +
 +
 +  #  Input (01) IMPS/2 Mouse                    (primary mouse)
 +  #    Type: MOUSE
 +  #    Caps: AXES BUTTONS
 +
 +  #  Input (00) AT Translated Set 2 keyboard    (primary keyboard)
 +  #    Type: KEYBOARD
 +  #    Caps: KEYS
 +
 +  #  Input (10) PS/2 Mouse
 +  #    Type: MOUSE
 +  #    Caps: AXES BUTTONS
 +
 +  #  Input (11) AlpsPS/2 ALPS GlidePoint
 +  #    Type: MOUSE
 +  #    Caps: AXES BUTTONS
 +
 +  #  Input (12) Keyboard
 +  #    Type: KEYBOARD
 +  #    Caps: KEYS
 +
 +
 +=== radeonfb===
 +
 +  # dmesg  | grep "fb:"
 +  # radeonfb: Retreived PLL infos from BIOS
 +  # radeonfb: Reference=191.86 MHz (RefDiv=426) Memory=160.00 Mhz, System=133.00 MHz
 +  # radeonfb: PLL min 12000 max 35000
 +  # radeonfb: Monitor 1 type LCD found
 +  # radeonfb: Monitor 2 type no found
 +  # radeonfb: panel ID string: 1024x768
 +  # radeonfb: detected LVDS panel size from BIOS: 1024x768
 +  # radeonfb: Dynamic Clock Power Management enabled
 +  # radeonfb (0000:01:05.0): ATI Radeon C6
 +  # vesafb: cannot reserve video memory at 0xf8000000
 +  # vesafb: framebuffer at 0xf8000000, mapped to 0xdf900000, using 3072k, total 32704k
 +  # vesafb: mode is 1024x768x16, linelength=2048, pages=20
 +  # vesafb: protected mode interface info at c000:5137
 +  # vesafb: scrolling: redraw
 +  # vesafb: Truecolor: size=0:5:6:5, shift=0:11:5:0
 +  # fb1: VESA VGA frame buffer device
 +  # kobject_register failed for radeonfb (-17)
 +  #  [[<de86600f>]] radeonfb_old_init+0xf/0x13 [[radeonfb]]
 +
 +===MISC===
 +
 +  PCI: Unable to reserve mem region #1:4000000@f8000000 for device 0000:01:05.0
 +radeonfb (0000:01:05.0): cannot reserve PCI regions.  Someone already got them?
 +  ACPI: PCI interrupt for device 0000:01:05.0 disabled
 +  radeonfb: probe of 0000:01:05.0 failed with error -16
 +
 +
 +=== [[Kernel]] config===
 +
 +
 +  grep FB /usr/src/linux/.config
 +
 +  CONFIG_FB=y
 +  CONFIG_FB_CFB_FILLRECT=y
 +  CONFIG_FB_CFB_COPYAREA=y
 +  CONFIG_FB_CFB_IMAGEBLIT=y
 +  CONFIG_FB_SOFT_CURSOR=y
 +  CONFIG_FB_MODE_HELPERS=y
 +  CONFIG_FB_VGA16=m
 +  CONFIG_FB_VESA=y
 +  CONFIG_FB_VIRTUAL=m
 +  CONFIG_FRAMEBUFFER_CONSOLE=m
 +
 +  zcat /proc/config.gz |  grep -v "^#" |  grep FB
 +
 +  CONFIG_FB=y
 +  CONFIG_FB_CFB_FILLRECT=y
 +  CONFIG_FB_CFB_COPYAREA=y
 +  CONFIG_FB_CFB_IMAGEBLIT=y
 +  CONFIG_FB_SOFT_CURSOR=y
 +  CONFIG_FB_MODE_HELPERS=y
 +  CONFIG_FB_VGA16=m
 +  CONFIG_FB_VESA=y
 +  CONFIG_FB_RADEON_OLD=m
 +  CONFIG_FB_RADEON=m
 +  CONFIG_FB_RADEON_I2C=y
 +  CONFIG_FB_VIRTUAL=m
 +
 +
 +===== French =====
 +
 +  * http://kafka.fr.free.fr/articles/divers/prog-framebuffer/prog-framebuffer.html
 +
 +
 +===== MORE =====
 +
 +@TaG: [[XWindow]] [[mplayer]] [[radeonfb]] [[directfb]] [[Embedded]] [[linux-kernel]]
  
framebuffer.txt ยท Last modified: 2022/04/16 12:23 (external edit)
 
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