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