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################################################################################
1		################################################################################
2		## Raspberry Pi Configuration Settings
3		##
4	-	## Details taken from the eLinux wiki 2012/06/27
4	+	## Revision 4, 2012/07/04
5		##
6		## Details taken from the eLinux wiki
7		## For up-to-date information please refer to wiki page.
8		##
9		## Wiki Location : http://elinux.org/RPi_config.txt
10		##
11		################################################################################
12
13		################################################################################
14		## Standard Definition Video Settings
15		################################################################################
16
17		## sdtv_mode
18		## defines the TV standard for composite output
19		##
20		## Value Description
21		## -------------------------------------------------------------------------
22		## 0 Normal NTSC (Default)
23		## 1 Japanese version of NTSC - no pedestal
24		## 2 Normal PAL
25		## 3 Brazilian version of PAL - 525/60 rather than 625/50, different subcarrier
26		##
27		#sdtv_mode=0
28
29		## sdtv_aspect
30		## defines the aspect ratio for composite output
31		##
32		## Value Description
33		## -------------------------------------------------------------------------
34		## 1 4:3 (Default)
35		## 2 14:9
36		## 3 16:9
37		##
38		#sdtv_aspect=1
39
40		################################################################################
41		## High Definition Video Settings
42		################################################################################
43
44		## hdmi_safe
45		## Use "safe mode" settings to try to boot with maximum hdmi compatibility.
46		##
47		## Value Description
48		## -------------------------------------------------------------------------
49		## 0 Disabled (Default)
50		## 1 Enabled (this does: hdmi_force_hotplug=1, config_hdmi_boost=4, hdmi_group=1, hdmi_mode=1, disable_overscan=0)
51		##
52		#hdmi_safe=1
53
54		## hdmi_force_hotplug
55		## overrides the normal selection of composite if no HDMI is detected
56		##
57		## Value Description
58		## -------------------------------------------------------------------------
59		## 0 Disabled (Default)
60		## 1 Use HDMI mode even if no HDMI monitor is detected
61		##
62		#hdmi_force_hotplug=1
63
64		## hdmi_drive
65		## chooses between HDMI and DVI modes
66		##
67		## Value Description
68		## -------------------------------------------------------------------------
69		## 1 Normal DVI mode (No sound)
70		## 2 Normal HDMI mode (Sound will be sent if supported and enabled)
71		##
72		#hdmi_drive=2
73
74		## hdmi_ignore_edid
75		## Enables the ignoring of EDID/display data
76		##
77		#hdmi_ignore_edid=0xa5000080
78
79		## hdmi_group
80		## defines the HDMI type
81		##
82		## [rgh] I think values are 0 and 1 really, and the default 0 for CEA - at least with the latest firmware as of May 25th 2012.
83		##
84		## Value Description
85		## -------------------------------------------------------------------------
86		## 1 CEA (Default)
87		## 2 DMT
88		##
89		#hdmi_group=1
90
91		## hdmi_mode
92		## defines screen resolution in CEA or DMT format
93		##
94		## H means 16:9 variant (of a normally 4:3 mode).
95		## 2x means pixel doubled (i.e. higher clock rate, with each pixel repeated twice)
96		## 4x means pixel quadrupled (i.e. higher clock rate, with each pixel repeated four times)
97		##
98		## Value hdmi_group=CEA hdmi_group=DMT
99		## -------------------------------------------------------------------------
100		## 1 VGA 640x350 85Hz
101		## 2 480p 60Hz 640x400 85Hz
102		## 3 480p 60Hz H 720x400 85Hz
103		## 4 720p 60Hz 640x480 60Hz
104		## 5 1080i 60Hz 640x480 72Hz
105		## 6 480i 60Hz 640x480 75Hz
106		## 7 480i 60Hz H 640x480 85Hz
107		## 8 240p 60Hz 800x600 56Hz
108		## 9 240p 60Hz H 800x600 60Hz
109		## 10 480i 60Hz 4x 800x600 72Hz
110		## 11 480i 60Hz 4x H 800x600 75Hz
111		## 12 240p 60Hz 4x 800x600 85Hz
112		## 13 240p 60Hz 4x H 800x600 120Hz
113		## 14 480p 60Hz 2x 848x480 60Hz
114		## 15 480p 60Hz 2x H 1024x768 43Hz DO NOT USE
115		## 16 1080p 60Hz 1024x768 60Hz
116		## 17 576p 50Hz 1024x768 70Hz
117		## 18 576p 50Hz H 1024x768 75Hz
118		## 19 720p 50Hz 1024x768 85Hz
119		## 20 1080i 50Hz 1024x768 120Hz
120		## 21 576i 50Hz 1152x864 75Hz
121		## 22 576i 50Hz H 1280x768 reduced blanking
122		## 23 288p 50Hz 1280x768 60Hz
123		## 24 288p 50Hz H 1280x768 75Hz
124		## 25 576i 50Hz 4x 1280x768 85Hz
125		## 26 576i 50Hz 4x H 1280x768 120Hz reduced blanking
126		## 27 288p 50Hz 4x 1280x800 reduced blanking
127		## 28 288p 50Hz 4x H 1280x800 60Hz
128		## 29 576p 50Hz 2x 1280x800 75Hz
129		## 30 576p 50Hz 2x H 1280x800 85Hz
130		## 31 1080p 50Hz 1280x800 120Hz reduced blanking
131		## 32 1080p 24Hz 1280x960 60Hz
132		## 33 1080p 25Hz 1280x960 85Hz
133		## 34 1080p 30Hz 1280x960 120Hz reduced blanking
134		## 35 480p 60Hz 4x 1280x1024 60Hz
135		## 36 480p 60Hz 4x H 1280x1024 75Hz
136		## 37 576p 50Hz 4x 1280x1024 85Hz
137		## 38 576p 50Hz 4x H 1280x1024 120Hz reduced blanking
138		## 39 1080i 50Hz reduced blanking 1360x768 60Hz
139		## 40 1080i 100Hz 1360x768 120Hz reduced blanking
140		## 41 720p 100Hz 1400x1050 reduced blanking
141		## 42 576p 100Hz 1400x1050 60Hz
142		## 43 576p 100Hz H 1400x1050 75Hz
143		## 44 576i 100Hz 1400x1050 85Hz
144		## 45 576i 100Hz H 1400x1050 120Hz reduced blanking
145		## 46 1080i 120Hz 1440x900 reduced blanking
146		## 47 720p 120Hz 1440x900 60Hz
147		## 48 480p 120Hz 1440x900 75Hz
148		## 49 480p 120Hz H 1440x900 85Hz
149		## 50 480i 120Hz 1440x900 120Hz reduced blanking
150		## 51 480i 120Hz H 1600x1200 60Hz
151		## 52 576p 200Hz 1600x1200 65Hz
152		## 53 576p 200Hz H 1600x1200 70Hz
153		## 54 576i 200Hz 1600x1200 75Hz
154		## 55 576i 200Hz H 1600x1200 85Hz
155		## 56 480p 240Hz 1600x1200 120Hz reduced blanking
156		## 57 480p 240Hz H 1680x1050 reduced blanking
157		## 58 480i 240Hz 1680x1050 60Hz
158		## 59 480i 240Hz H 1680x1050 75Hz
159		## 60 1680x1050 85Hz
160		## 61 1680x1050 120Hz reduced blanking
161		## 62 1792x1344 60Hz
162		## 63 1792x1344 75Hz
163		## 64 1792x1344 120Hz reduced blanking
164		## 65 1856x1392 60Hz
165		## 66 1856x1392 75Hz
166		## 67 1856x1392 120Hz reduced blanking
167		## 68 1920x1200 reduced blanking
168		## 69 1920x1200 60Hz
169		## 70 1920x1200 75Hz
170		## 71 1920x1200 85Hz
171		## 72 1920x1200 120Hz reduced blanking
172		## 73 1920x1440 60Hz
173		## 74 1920x1440 75Hz
174		## 75 1920x1440 120Hz reduced blanking
175		## 76 2560x1600 reduced blanking
176		## 77 2560x1600 60Hz
177		## 78 2560x1600 75Hz
178		## 79 2560x1600 85Hz
179		## 80 2560x1600 120Hz reduced blanking
180		## 81 1366x768 60Hz
181		## 82 1080p 60Hz
182		## 83 1600x900 reduced blanking
183		## 84 2048x1152 reduced blanking
184		## 85 720p 60Hz
185		## 86 1366x768 reduced blanking
186		##
187		#hdmi_mode=1
188
189		## config_hdmi_boost
190		## configure the signal strength of the HDMI interface.
191		##
192		## Value Description
193		## -------------------------------------------------------------------------
194		## 0 (Default)
195		## 1
196		## 2
197		## 3
198		## 4 Try if you have interference issues with HDMI
199		## 5
200		## 6
201		## 7 Maximum
202		##
203		#config_hdmi_boost=0
204
205		################################################################################
206		## Overscan Video Settings
207		################################################################################
208
209		## overscan_left
210		## number of pixels to skip on left
211		##
212		#overscan_left=0
213
214		## overscan_right
215		## number of pixels to skip on right
216		##
217		#overscan_right=0
218
219		## overscan_top
220		## number of pixels to skip on top
221		##
222		#overscan_top=0
223
224		## overscan_bottom
225		## number of pixels to skip on bottom
226		##
227		#overscan_bottom=0
228
229		## disable_overscan
230		## set to 1 to disable overscan
231		##
232		## Value Description
233		## -------------------------------------------------------------------------
234		## 0 Overscan Enabled (Default)
235		## 1 Overscan Disabled
236		##
237		#disable_overscan=1
238
239		################################################################################
240		## Framebuffer Video Settings
241		################################################################################
242
243		## framebuffer_width
244		## console framebuffer width in pixels. Default is display width minus overscan.
245		##
246		#framebuffer_width=0
247
248		## framebuffer_height
249		## console framebuffer height in pixels. Default is display height minus overscan.
250		##
251		#framebuffer_height=0
252
253		## framebuffer_depth
254		## console framebuffer depth in bits per pixel.
255		##
256		## Value Description
257		## -------------------------------------------------------------------------
258		## 8 valid, but default RGB palette makes an unreadable screen
259		## 16 (Default)
260		## 24 looks better but has corruption issues as of 2012/06/15
261		## 32 has no corruption issues but needs framebuffer_ignore_alpha=1 and shows the wrong colors as of 2012/06/15
262		##
263		#framebuffer_depth=16
264
265		## framebuffer_ignore_alpha
266		## set to 1 to disable alpha channel. Helps with 32bit.
267		##
268		## Value Description
269		## -------------------------------------------------------------------------
270		## 0 Enable Alpha Channel (Default)
271		## 1 Disable Alpha Channel
272		##
273		#framebuffer_ignore_alpha=0
274
275		################################################################################
276		## Test Settings
277		################################################################################
278
279		## test_mode
280		## enable test sound/image during boot for manufacturing test.
281		##
282		## Value Description
283		## -------------------------------------------------------------------------
284		## 0 Disable Test Mod (Default)
285		## 1 Enable Test Mode
286		##
287		#test_mode=0
288
289		################################################################################
290		## Cache Settings
291		################################################################################
292
293		## disable_l2cache
294		## disable arm access to GPU's L2 cache. Needs corresponding L2 disabled kernel.
295		##
296		## Value Description
297		## -------------------------------------------------------------------------
298		## 0 Enable L2 Cache (Default)
299		## 1 Disable L2 cache
300		##
301		#disable_l2cache=0
302
303		################################################################################
304		## Boot Option Settings
305		################################################################################
306
307		## disable_commandline_tags
308		## Stops start.elf from filling in ATAGS (memory from 0x100) before launching kernel
309		##
310		#disable_commandline_tags=0
311
312		## cmdline (string)
313		## Command line parameters. Can be used instead of cmdline.txt file
314		##
315		#cmdline=""
316
317		## kernel (string)
318		## Alternative name to use when loading kernel.
319		##
320		#kernel=""
321
322		## kernel_address
323		## address to load kernel.img file at
324		##
325		#kernel_address=0x00000000
326
327		## ramfsfile (string)
328		## ramfs file to load
329		##
330		#ramfsfile=""
331
332		## device_tree_address
333		## address to load device_tree at
334		##
335		#device_tree_address=0x00000000
336
337		## init_uart_baud
338		## initial uart baud rate. Default 115200
339		##
340		#init_uart_baud=115200
341
342		## init_uart_clock
343		## initial uart clock. Default 3000000
344		##
345		#init_uart_clock=3000000
346
347		## init_emmc_clock
348		## initial emmc clock. Default 50000000 (50mhz default. increasing this can speedup your SD-card)
349		##
350		#init_emmc_clock=50000000
351
352		## boot_delay
353		## Waits for given number of seconds in start.elf before loading kernel.img.
354		##
355		#boot_delay=0
356
357		################################################################################
358		## Overclocking Settings
359		################################################################################
360
361		## arm_freq
362		## frequency of ARM in MHz. Default 700.
363		##
364		#arm_freq=700
365
366		## gpu_freq
367		## Sets core_freq, h264_freq, isp_freq, v3d_freq together.
368		##
369		#gpu_freq=250
370
371		## core_freq
372		## frequency of GPU processor core in MHz. Default 250.
373		##
374		#core_freq=250
375
376		## h264_freq
377		## frequency of hardware video block in MHz. Default 250.
378		##
379		#h264_freq=250
380
381		## isp_freq
382		## frequency of image sensor pipeline block in MHz. Default 250.
383		##
384		#isp_freq=250
385
386		## v3d_freq
387		## frequency of 3D block in MHz. Default 250.
388		##
389		#v3d_freq=250
390
391		## sdram_freq
392		## frequency of SDRAM in MHz. Default 400.
393		##
394		#sdram_freq=400
395
396		################################################################################
397		## Voltage Settings
398		##
399		## WARNING: Setting any of the parameters which over volt your Raspberry Pi
400		## will set a permanent bit within the SOC and your warranty is void. So If
401		## you care about the warranty do not adjust voltage.
402		##
403		################################################################################
404
405		## over_voltage
406		## ARM/GPU core voltage adjust.
407		##
408		## Value Description
409		## -------------------------------------------------------------------------
410		## -16 0.8 V
411		## -15 0.825 V
412		## -14 0.85 V
413		## -13 0.875 V
414		## -12 0.9 V
415		## -11 0.925 V
416		## -10 0.95 V
417		## -9 0.975 V
418		## -8 1.0 V
419		## -7 1.025 V
420		## -6 1.05 V
421		## -5 1.075 V
422		## -4 1.1 V
423		## -3 1.125 V
424		## -2 1.15 V
425		## -1 1.175 V
426		## 0 1.2 V (Default)
427		## 1 1.225 V
428		## 2 1.25 V
429		## 3 1.275 V
430		## 4 1.3 V
431		## 5 1.325 V
432		## 6 1.35 V
433		## 7 1.375 V
434		## 8 1.4 V
435		##
436		#over_voltage=0
437
438		## over_voltage_sdram
439		## Sets over_voltage_sdram_c, over_voltage_sdram_i, over_voltage_sdram_p together
440		##
441		## Value Description
442		## -------------------------------------------------------------------------
443		## -16 0.8 V
444		## -15 0.825 V
445		## -14 0.85 V
446		## -13 0.875 V
447		## -12 0.9 V
448		## -11 0.925 V
449		## -10 0.95 V
450		## -9 0.975 V
451		## -8 1.0 V
452		## -7 1.025 V
453		## -6 1.05 V
454		## -5 1.075 V
455		## -4 1.1 V
456		## -3 1.125 V
457		## -2 1.15 V
458		## -1 1.175 V
459		## 0 1.2 V (Default)
460		## 1 1.225 V
461		## 2 1.25 V
462		## 3 1.275 V
463		## 4 1.3 V
464		## 5 1.325 V
465		## 6 1.35 V
466		## 7 1.375 V
467		## 8 1.4 V
468		##
469		#over_voltage_sdram=0
470
471		## over_voltage_sdram_c
472		## SDRAM controller voltage adjust.
473		##
474		## Value Description
475		## -------------------------------------------------------------------------
476		## -16 0.8 V
477		## -15 0.825 V
478		## -14 0.85 V
479		## -13 0.875 V
480		## -12 0.9 V
481		## -11 0.925 V
482		## -10 0.95 V
483		## -9 0.975 V
484		## -8 1.0 V
485		## -7 1.025 V
486		## -6 1.05 V
487		## -5 1.075 V
488		## -4 1.1 V
489		## -3 1.125 V
490		## -2 1.15 V
491		## -1 1.175 V
492		## 0 1.2 V (Default)
493		## 1 1.225 V
494		## 2 1.25 V
495		## 3 1.275 V
496		## 4 1.3 V
497		## 5 1.325 V
498		## 6 1.35 V
499		## 7 1.375 V
500		## 8 1.4 V
501		##
502		#over_voltage_sdram_c=0
503
504		## over_voltage_sdram_i
505		## SDRAM I/O voltage adjust.
506		##
507		## Value Description
508		## -------------------------------------------------------------------------
509		## -16 0.8 V
510		## -15 0.825 V
511		## -14 0.85 V
512		## -13 0.875 V
513		## -12 0.9 V
514		## -11 0.925 V
515		## -10 0.95 V
516		## -9 0.975 V
517		## -8 1.0 V
518		## -7 1.025 V
519		## -6 1.05 V
520		## -5 1.075 V
521		## -4 1.1 V
522		## -3 1.125 V
523		## -2 1.15 V
524		## -1 1.175 V
525		## 0 1.2 V (Default)
526		## 1 1.225 V
527		## 2 1.25 V
528		## 3 1.275 V
529		## 4 1.3 V
530		## 5 1.325 V
531		## 6 1.35 V
532		## 7 1.375 V
533		## 8 1.4 V
534		##
535		#over_voltage_sdram_i=0
536
537		## over_voltage_sdram_p
538		## SDRAM phy voltage adjust.
539		##
540		## Value Description
541		## -------------------------------------------------------------------------
542		## -16 0.8 V
543		## -15 0.825 V
544		## -14 0.85 V
545		## -13 0.875 V
546		## -12 0.9 V
547		## -11 0.925 V
548		## -10 0.95 V
549		## -9 0.975 V
550		## -8 1.0 V
551		## -7 1.025 V
552		## -6 1.05 V
553		## -5 1.075 V
554		## -4 1.1 V
555		## -3 1.125 V
556		## -2 1.15 V
557		## -1 1.175 V
558		## 0 1.2 V (Default)
559		## 1 1.225 V
560		## 2 1.25 V
561		## 3 1.275 V
562		## 4 1.3 V
563		## 5 1.325 V
564		## 6 1.35 V
565		## 7 1.375 V
566		## 8 1.4 V
567		##
568		#over_voltage_sdram_p=0