radeon.man revision b13dfe66
1.ds q \N'34'
2.TH RADEON __drivermansuffix__ __vendorversion__
3.SH NAME
4radeon \- ATI RADEON video driver
5.SH SYNOPSIS
6.nf
7.B "Section \*qDevice\*q"
8.BI "  Identifier \*q"  devname \*q
9.B  "  Driver \*qradeon\*q"
10\ \ ...
11.B EndSection
12.fi
13.SH DESCRIPTION
14.B radeon
15is an __xservername__ driver for ATI RADEON-based video cards with the
16following features:
17.PP
18.PD 0
19.TP 2
20\(bu
21Full support for 8-, 15-, 16- and 24-bit pixel depths;
22.TP
23\(bu
24RandR 1.2 and RandR 1.3 support;
25.TP
26\(bu
27TV-out support (only on RV/RS1xx, RV/RS2xx, R/RV/RS3xx. Experimental
28support on R/RV5xx, R/RV6xx, and R/RV7xx through the
29.B ATOMTvOut
30option);  TV-out is not supported on cards that use the Rage Theatre
31chip for TV-out (R100, R200).
32.TP
33\(bu
34Full EXA 2D acceleration;
35.TP
36\(bu
37Full XAA 2D acceleration (only on R/RV/RS1xx, R/RV/RS2xx, R/RV/RS3xx,
38R/RV/RS4xx, R/RV5xx, RS6xx. XAA Render acceleration supported only on R/RV100,
39R/RV/RS2xx and RS3xx);
40.TP
41\(bu
42Textured XVideo acceleration including anti-tearing support (Bicubic filtering
43only available on R/RV3xx, R/RV/RS4xx, R/RV5xx, and RS6xx/RS740);
44.TP
45\(bu
46Overlay XVideo acceleration (only on R/RV/RS1xx, R/RV/RS2xx,
47R/RV/RS3xx, R/RV/RS4xx);
48.TP
49\(bu
503D acceleration;
51.PD
52.SH SUPPORTED HARDWARE
53The
54.B radeon
55driver supports PCI, AGP, and PCIE video cards based on the following ATI chips:
56.PP
57.PD 0
58.TP 12
59.B R100
60Radeon 7200
61.TP 12
62.B RV100
63Radeon 7000(VE), M6, RN50/ES1000
64.TP 12
65.B RS100
66Radeon IGP320(M)
67.TP 12
68.B RV200
69Radeon 7500, M7, FireGL 7800
70.TP 12
71.B RS200
72Radeon IGP330(M)/IGP340(M)
73.TP 12
74.B RS250
75Radeon Mobility 7000 IGP
76.TP 12
77.B R200
78Radeon 8500, 9100, FireGL 8800/8700
79.TP 12
80.B RV250
81Radeon 9000PRO/9000, M9
82.TP 12
83.B RV280
84Radeon 9200PRO/9200/9200SE/9250, M9+
85.TP 12
86.B RS300
87Radeon 9100 IGP
88.TP 12
89.B RS350
90Radeon 9200 IGP
91.TP 12
92.B RS400/RS480
93Radeon XPRESS 200(M)/1100 IGP
94.TP 12
95.B R300
96Radeon 9700PRO/9700/9500PRO/9500/9600TX, FireGL X1/Z1
97.TP 12
98.B R350
99Radeon 9800PRO/9800SE/9800, FireGL X2
100.TP 12
101.B R360
102Radeon 9800XT
103.TP 12
104.B RV350
105Radeon 9600PRO/9600SE/9600/9550, M10/M11, FireGL T2
106.TP 12
107.B RV360
108Radeon 9600XT
109.TP 12
110.B RV370
111Radeon X300, M22
112.TP 12
113.B RV380
114Radeon X600, M24
115.TP 12
116.B RV410
117Radeon X700, M26 PCIE
118.TP 12
119.B R420
120Radeon X800 AGP
121.TP 12
122.B R423/R430
123Radeon X800, M28 PCIE
124.TP 12
125.B R480/R481
126Radeon X850 PCIE/AGP
127.TP 12
128.B RV505/RV515/RV516/RV550
129Radeon X1300/X1400/X1500/X2300
130.TP 12
131.B R520
132Radeon X1800
133.TP 12
134.B RV530/RV560
135Radeon X1600/X1650/X1700
136.TP 12
137.B RV570/R580
138Radeon X1900/X1950
139.TP 12
140.B RS600/RS690/RS740
141Radeon X1200/X1250/X2100
142.TP 12
143.B R600
144Radeon HD 2900
145.TP 12
146.B RV610/RV630
147Radeon HD 2400/2600
148.TP 12
149.B RV620/RV635
150Radeon HD 3450/3470
151.TP 12
152.B RV670
153Radeon HD 3850/3870
154.TP 12
155.B RS780
156Radeon HD 3100/3200/3300
157.TP 12
158.B RS880
159Radeon HD 4100/4200/4290
160.TP 12
161.B RV710
162Radeon HD 4350/4550
163.TP 12
164.B RV730
165Radeon HD 4650/4670
166.TP 12
167.B RV770
168Radeon HD 4850/4870
169.TP 12
170.B CEDAR
171Radeon HD 5450
172.TP 12
173.B REDWOOD
174Radeon HD 5550/5570/5670
175.TP 12
176.B JUNIPER
177Radeon HD 5750/5770
178.TP 12
179.B CYPRESS
180Radeon HD 5850/5870
181.TP 12
182.B HEMLOCK
183Radeon HD 5970
184.TP 12
185.B PALM
186Radeon HD 6310/6250
187.TP 12
188.B BARTS
189Radeon HD 6850/6870
190.TP 12
191.B TURKS
192Radeon HD 6570/6670
193.TP 12
194.B CAICOS
195Radeon HD 6450
196.PD
197.SH CONFIGURATION DETAILS
198Please refer to __xconfigfile__(__filemansuffix__) for general configuration
199details.  This section only covers configuration details specific to this
200driver.
201.PP
202The driver auto\-detects all device information necessary to initialize
203the card.  However, if you have problems with auto\-detection, you can
204specify for UMS (Userspace Modesetting):
205.PP
206.RS 4
207VideoRam \- in kilobytes
208.br
209MemBase  \- physical address of the linear framebuffer
210.br
211IOBase   \- physical address of the MMIO registers
212.br
213ChipID   \- PCI DEVICE ID
214.RE
215.PP
216In addition, the following driver
217.B Options
218are supported for both
219.B UMS
220(Userspace Modesetting) and
221.B KMS
222(Kernel Modesetting):
223.TP
224.BI "Option \*qSWcursor\*q \*q" boolean \*q
225Selects software cursor.  The default is
226.B off.
227.TP
228.BI "Option \*qNoAccel\*q \*q" boolean \*q
229Enables or disables all hardware acceleration.
230.br
231The default is to
232.B enable
233hardware acceleration.
234.TP
235.BI "Option \*qZaphodHeads\*q \*q" string \*q
236Specify the RandR output(s) to use with zaphod mode for a particular driver
237instance.  If you use this option you most use this option for all instances
238of the driver.
239.br
240For example:
241.B
242Option \*qZaphodHeads\*q \*qLVDS,VGA-0\*q
243will assign xrandr outputs LVDS and VGA-0 to this instance of the driver.
244.TP
245.BI "Option \*qEXAVSync\*q \*q" boolean \*q
246This option attempts to avoid tearing by stalling the engine until the display
247controller has passed the destination region.  It reduces tearing at the cost
248of performance and has been known to cause instability on some chips.
249The default is
250.B off.
251
252.PP
253The following driver
254.B Options
255are supported for
256.B KMS
257(Kernel Modesetting):
258.TP
259.BI "Option \*qColorTiling\*q \*q" "boolean" \*q
260The framebuffer can be addressed either in linear or tiled mode. Tiled mode can provide
261significant performance benefits with 3D applications.  Tiling will be disabled if the drm
262module is too old or if the current display configuration does not support it. KMS
263ColorTiling is not currently supported on R/RV/RS1XX, R/RV/RS2XX, and RS3XX.
264.br
265The default value is
266.B on
267for R/RV3XX, R/RV4XX, R/RV5XX, RS6XX, RS740 and
268.B off
269for R/RV6XX, R/RV7XX, RS780, RS880, and EVERGREEN.
270.TP
271.BI "Option \*qEXAPixmaps\*q \*q" boolean \*q
272Under KMS, to avoid thrashing pixmaps in/out of VRAM on low memory cards,
273we use a heuristic based on VRAM amount to determine whether to allow EXA
274to use VRAM for non-essential pixmaps.  This option allows us to override the
275heuristic.  The default is
276.B on
277with > 32MB VRAM, off with < 32MB.
278.TP
279.BI "Option \*qSwapbuffersWait\*q \*q" boolean \*q
280This option controls the behavior of glXSwapBuffers and glXCopySubBufferMESA
281calls by GL applications.  If enabled, the calls will avoid tearing by making
282sure the display scanline is outside of the area to be copied before the copy
283occurs.  If disabled, no scanline synchronization is performed, meaning tearing
284will likely occur.  Note that when enabled, this option can adversely affect
285the framerate of applications that render frames at less than refresh rate.
286.IP
287The default value is
288.B on.
289.TP
290.BI "Option \*qEnablePageFlip\*q \*q" boolean \*q
291Enable DRI2 page flipping.  The default is
292.B on.
293Pageflipping is supported on all radeon hardware.
294.PP
295The following driver
296.B Options
297are supported for
298.B UMS
299(Userspace Modesetting):
300.TP
301.BI "Option \*qDac6Bit\*q \*q" boolean \*q
302Enables or disables the use of 6 bits per color component when in 8 bpp
303mode (emulates VGA mode).  By default, all 8 bits per color component
304are used.
305.br
306The default is
307.B off.
308.TP
309.BI "Option \*qVideoKey\*q \*q" integer \*q
310This overrides the default pixel value for the YUV video overlay key.
311.br
312The default value is
313.B 0x1E.
314.TP
315.BI "Option \*qScalerWidth\*q \*q" integer \*q
316This sets the overlay scaler buffer width. Accepted values range from
3171024 to 2048, divisible by 64.  Values other than 1536 and 1920 may
318not make sense.  This should be set automatically, but no one knows
319what the limit is for which chip. If you think quality is not optimal
320when playing back HD video (with horizontal resolution larger than
321this setting), increase this value.  If you get an empty area at the
322right (usually pink), decrease it. Note that this only affects the "true"
323overlay via Xv, and won't affect things like textured video.
324.br
325The default value is either 1536 (for most chips) or 1920.
326.TP
327.BI "Option \*qAGPMode\*q \*q" integer \*q
328Set AGP data transfer rate.
329(used only when DRI is enabled)
330.br
3311      \-\- 1x (before AGP v3 only)
332.br
3332      \-\- 2x (before AGP v3 only)
334.br
3354      \-\- 4x
336.br
3378      \-\- 8x (AGP v3 only)
338.br
339others \-\- invalid
340.br
341The default is to
342.B leave it unchanged.
343.TP
344.BI "Option \*qAGPFastWrite\*q \*q" boolean \*q
345Enable AGP fast writes.  Enabling this is frequently the cause of
346instability. Used only when the DRI is enabled. If you enable
347this option you will get *NO* support from developers.
348.br
349The default is
350.B off.
351.TP
352.BI "Option \*qBusType\*q \*q" string \*q
353Used to replace previous ForcePCIMode option.
354Should only be used when driver's bus detection is incorrect
355or you want to force a AGP card to PCI mode. You should NEVER force
356a PCI card to AGP bus.
357.br
358PCI    \-\- PCI bus
359.br
360AGP    \-\- AGP bus
361.br
362PCIE   \-\- PCI Express bus
363.br
364(used only when DRI is enabled)
365.br
366The default is
367.B auto detect.
368.TP
369.BI "Option \*qDisplayPriority\*q \*q" string \*q
370.br
371Used to prevent flickering or tearing problem caused by display buffer underflow.
372.br
373AUTO   \-\- Driver calculated (default).
374.br
375BIOS   \-\- Remain unchanged from BIOS setting.
376          Use this if the calculation is not correct
377          for your card.
378.br
379HIGH   \-\- Force to the highest priority.
380          Use this if you have problem with above options.
381          This may affect performance slightly.
382.br
383The default value is
384.B AUTO.
385.TP
386.BI "Option \*qColorTiling\*q \*q" "boolean" \*q
387The framebuffer can be addressed either in linear or tiled mode. Tiled mode can provide
388significant performance benefits with 3D applications.  For 2D it shouldn't matter
389much. Tiling will be disabled if the virtual x resolution exceeds 2048 (3968 for R300 
390and above), or if DRI is enabled and the drm module is too old.
391.br
392If this option is enabled, a new DRI driver is required for direct rendering.
393.br
394Color tiling will be automatically disabled in interlaced or doublescan screen modes.
395.br
396The default value is
397.B on.
398.TP 
399.BI "Option \*qIgnoreEDID\*q \*q" boolean \*q
400Do not use EDID data for mode validation.  DDC is still used
401for monitor detection. This is different from NoDDC option.
402.br
403The default value is
404.B off.
405.TP 
406.BI "Option \*qCustomEDID\*q \*q" string \*q
407Forces the X driver to use the EDID data specified in a file rather
408than the display's EDID. Also overrides DDC monitor detection.
409.br
410You may specify a semicolon-separated list of output name and filename pairs
411with an optional flag, "digital" or "analog", to override the digital bit in
412the EDID which is used by the driver to determine whether to use the
413analog or digital encoder associated with a DVI-I port.
414The output name is the RandR output name, e.g., "VGA-0" or "DVI-0";
415consult the Xorg log for the supported output names of any given system.
416.br
417The file must contain a raw 128-byte EDID block, as captured by
418.B
419get-edid.
420.br
421For example:
422.B
423Option \*qCustomEDID\*q \*qVGA-0:/tmp/edid1.bin; DVI-0:/tmp/edid2.bin:digital\*q
424will assign the EDID from the file /tmp/edid1.bin to the output device
425VGA-0, and the EDID from the file /tmp/edid2.bin to the output device
426DVI-0 and force the DVI port to use the digital encoder.
427.br
428Note that a output name must always be specified,
429even if only one EDID is specified.
430.br
431.B
432Caution:
433Specifying an EDID that doesn't exactly match your display may
434damage your hardware, as it allows the driver to specify timings beyond
435the capabilities of your display. Use with care.
436.TP 
437.BI "Option \*qPanelSize\*q \*q" "string" \*q
438Should only be used when driver cannot detect the correct panel size.
439Apply to both desktop (TMDS) and laptop (LVDS) digital panels.
440When a valid panel size is specified, the timings collected from
441DDC and BIOS will not be used. If you have a panel with timings
442different from that of a standard VESA mode, you have to provide
443this information through the Modeline.
444.br
445For example, Option "PanelSize" "1400x1050"
446.br
447The default value is
448.B none.
449.TP
450.BI "Option \*qEnablePageFlip\*q \*q" boolean \*q
451Enable page flipping for 3D acceleration. This will increase performance
452but not work correctly in some rare cases, hence the default is
453.B off.
454It is currently only supported on R/RV/RS4xx and older hardware.
455.TP
456.BI "Option \*qForceMinDotClock\*q \*q" frequency \*q
457Override minimum dot clock. Some Radeon BIOSes report a minimum dot
458clock unsuitable (too high) for use with television sets even when they
459actually can produce lower dot clocks. If this is the case you can
460override the value here.
461.B Note that using this option may damage your hardware.
462You have been warned. The
463.B frequency
464parameter may be specified as a float value with standard suffixes like
465"k", "kHz", "M", "MHz".
466.TP
467.BI "Option \*qRenderAccel\*q \*q" boolean \*q
468Enables or disables hardware Render acceleration.  It is supported on all
469Radeon cards when using EXA acceleration and on Radeon R/RV/RS1xx,
470R/RV/RS2xx and RS3xx when using XAA.  The default is to
471.B enable
472Render acceleration.
473.TP
474.BI "Option \*qAccelMethod\*q \*q" "string" \*q
475Chooses between available acceleration architectures.  Valid options are
476.B XAA
477and
478.B EXA.
479XAA is the traditional acceleration architecture and support for it is very
480stable.  EXA is a newer acceleration architecture with better performance for
481the Render and Composite extensions.  The default is
482.B EXA.
483.TP
484.BI "Option \*qAccelDFS\*q \*q" boolean \*q
485Use or don't use accelerated EXA DownloadFromScreen hook when possible (only
486when Direct Rendering is enabled, e.g.).
487Default:
488.B off
489with AGP due to issues with GPU->host transfers with some AGP bridges,
490.B on
491otherwise.
492.TP
493.BI "Option \*qFBTexPercent\*q \*q" integer \*q
494Amount of video RAM to reserve for OpenGL textures, in percent. With EXA, the
495remainder of video RAM is reserved for EXA offscreen management. Specifying 0
496results in all offscreen video RAM being reserved for EXA and only GART memory
497being available for OpenGL textures. This may improve EXA performance, but
498beware that it may cause problems with OpenGL drivers from Mesa versions older
499than 6.4. With XAA, specifying lower percentage than what gets reserved without
500this option has no effect, but the driver tries to increase the video RAM
501reserved for textures to the amount specified roughly.
502Default:
503.B 50.
504.TP
505.BI "Option \*qDepthBits\*q \*q" integer \*q
506Precision in bits per pixel of the shared depth buffer used for 3D acceleration.
507Valid values are 16 and 24. When this is 24, there will also be a hardware
508accelerated stencil buffer, but the combined depth/stencil buffer will take up
509twice as much video RAM as when it's 16.
510Default:
511.B The same as the screen depth.
512.TP
513.BI "Option \*qDMAForXv\*q \*q" boolean \*q
514Try or don't try to use DMA for Xv image transfers. This will reduce CPU
515usage when playing big videos like DVDs, but may cause instabilities.
516Default:
517.B on.
518.TP
519.BI "Option \*qSubPixelOrder\*q \*q" "string" \*q
520Force subpixel order to specified order.
521Subpixel order is used for subpixel decimation on flat panels.
522.br
523NONE   \-\- No subpixel (CRT like displays)
524.br
525RGB    \-\- in horizontal RGB order (most flat panels)
526.br
527BGR    \-\- in horizontal BGR order (some flat panels)
528
529.br
530This option is intended to be used in following cases:
531.br
5321. The default subpixel order is incorrect for your panel.
533.br
5342. Enable subpixel decimation on analog panels.
535.br
5363. Adjust to one display type in dual-head clone mode setup.
537.br
5384. Get better performance with Render acceleration on
539digital panels (use NONE setting).
540.br
541The default is 
542.B NONE 
543for CRT, 
544.B RGB 
545for digital panels
546.TP
547.BI "Option \*qClockGating\*q \*q" boolean \*q
548Enable dynamic clock gating.  This can help reduce heat and increase battery
549life by reducing power usage.  Some users report reduced 3D performance
550with this enabled.  The default is
551.B off.
552.TP
553.BI "Option \*qForceLowPowerMode\*q \*q" boolean \*q
554Enable a static low power mode.  This can help reduce heat and increase battery
555life by reducing power usage at the expense of performance. The default is
556.B off.
557.TP
558.BI "Option \*qDynamicPM\*q \*q" boolean \*q
559Enable dynamic power mode switching.  This can help reduce heat and increase battery
560life by reducing power usage when the system is idle (DPMS active). The default is
561.B off.
562.TP
563.BI "Option \*qVGAAccess\*q \*q" boolean \*q
564Tell the driver if it can do legacy VGA IOs to the card. This is
565necessary for properly resuming consoles when in VGA text mode, but
566shouldn't be if the console is using radeonfb or some other graphic
567mode driver. Some platforms like PowerPC have issues with those, and they aren't
568necessary unless you have a real text mode in console. The default is
569.B off
570on PowerPC and SPARC and
571.B on
572on other architectures.
573.TP
574.BI "Option \*qReverseDDC\*q \*q" boolean \*q
575When BIOS connector information isn't available, use this option to
576reverse the mapping of the two main DDC ports. Use this if the X server
577obviously detects the wrong display for each connector. This is
578typically needed on the Radeon 9600 cards bundled with Apple G5s. The
579default is
580.B off.
581.TP
582.BI "Option \*qLVDSProbePLL\*q \*q" boolean \*q
583When BIOS panel information isn't available (like on PowerBooks), it
584may still be necessary to use the firmware-provided PLL values for the
585panel or flickering will happen. This option will force probing of
586the current value programmed in the chip when X is launched in that
587case.  This is only useful for LVDS panels (laptop internal panels).
588The default is
589.B on.
590.TP
591.BI "Option \*qTVDACLoadDetect\*q \*q" boolean \*q
592Enable load detection on the TV DAC.  The TV DAC is used to drive both
593TV-out and analog monitors. Load detection is often unreliable in the
594TV DAC so it is disabled by default.
595The default is
596.B off.
597.TP
598.BI "Option \*qDefaultTMDSPLL\*q \*q" boolean \*q
599Use the default driver provided TMDS PLL values rather than the ones
600provided by the BIOS. This option has no effect on Mac cards.  Enable
601this option if you are having problems with a DVI monitor using the
602internal TMDS controller.
603The default is
604.B off.
605.TP
606.BI "Option \*qDefaultTVDACAdj\*q \*q" boolean \*q
607Use the default driver provided TVDAC Adj values rather than the ones
608provided by the BIOS. This option has no effect on Mac cards.  Enable
609this option if you are having problems with a washed out display on
610the secondary DAC.
611The default is
612.B off.
613.TP
614.BI "Option \*qDRI\*q \*q" boolean \*q
615Enable DRI support.  This option allows you to enable to disable the DRI.
616The default is
617.B off 
618for RN50/ES1000 and
619.B on 
620for others.
621.TP
622.BI "Option \*qDefaultConnectorTable\*q \*q" boolean \*q
623Enable this option to skip the BIOS connector table parsing and use the
624driver defaults for each chip.
625The default is
626.B off 
627.TP
628.BI "Option \*qMacModel\*q \*q" string \*q
629.br
630Used to specify Mac models for connector tables and quirks.  If you have
631a PowerBook or Mini with DVI that does not work properly, try the alternate
632options as Apple does not seem to provide a good way of knowing whether
633they use internal or external TMDS for DVI.  Only valid on PowerPC.
634On Linux, the driver will attempt to detect the MacModel automatically.
635.br
636ibook                \-\- ibooks
637.br
638powerbook-external   \-\- Powerbooks with external DVI
639.br
640powerbook-internal   \-\- Powerbooks with integrated DVI
641.br
642powerbook-vga        \-\- Powerbooks with VGA rather than DVI
643.br
644mini-external        \-\- Mac Mini with external DVI
645.br
646mini-internal        \-\- Mac Mini with integrated DVI
647.br
648imac-g5-isight       \-\- iMac G5 iSight
649.br
650emac                 \-\- eMac G4
651.br
652The default value is
653.B undefined.
654.TP
655.BI "Option \*qTVStandard\*q \*q" string \*q
656.br
657Used to specify the default TV standard if you want to use something other than
658the BIOS default. Valid options are:
659.br
660ntsc
661.br
662pal
663.br
664pal-m
665.br
666pal-60
667.br
668ntsc-j
669.br
670scart-pal
671.br
672The default value is
673.B undefined.
674.TP
675.BI "Option \*qForceTVOut\*q \*q" boolean \*q
676Enable this option to force TV-out to always be detected as attached.
677The default is
678.B off 
679.TP
680.BI "Option \*qIgnoreLidStatus\*q \*q" boolean \*q
681Enable this option to ignore lid status on laptops and always detect
682LVDS as attached.
683The default is
684.B on. 
685.TP
686.BI "Option \*qInt10\*q \*q" boolean \*q
687This option allows you to disable INT10 initialization.  Set this to
688False if you are experiencing a hang when initializing a secondary card.
689The default is
690.B on.
691.TP 
692.BI "Option \*qATOMTvOut\*q \*q" boolean \*q
693This option enables experimental TV-out support for R/RV5xx, R/RV6xx, and R/RV7xx
694AtomBIOS chips. TV-out is experimental and may not function on these chips as
695well as hoped for.
696The default is
697.B off.
698.TP 
699.BI "Option \*qR4xxATOM\*q \*q" boolean \*q
700This option enables modesetting on R/RV4xx chips using AtomBIOS.
701The default is
702.B off.
703
704.SH TEXTURED VIDEO ATTRIBUTES
705The driver supports the following X11 Xv attributes for Textured Video.
706You can use the "xvattr" tool to query/set those attributes at runtime.
707
708.TP
709.BI "XV_VSYNC"
710XV_VSYNC is used to control whether textured adapter synchronizes
711the screen update to the monitor vertical refresh to eliminate tearing.
712It has two values: 'off'(0) and 'on'(1). The default is
713.B 'on'(1).
714
715.TP
716.BI "XV_CRTC"
717XV_CRTC is used to control which display controller (crtc) the textured
718adapter synchronizes the screen update with when XV_VSYNC is enabled.
719The default, 'auto'(-1), will sync to the display controller that more
720of the video is on.  This attribute is useful for things like clone mode
721where the user can best decide which display should be synced.
722The default is
723.B 'auto'(-1).
724
725.TP
726.BI "XV_BICUBIC"
727XV_BICUBIC is used to control whether textured adapter should apply
728a bicubic filter to smooth the output. It has three values: 'off'(0), 'on'(1)
729and 'auto'(2). 'off' means never apply the filter, 'on' means always apply
730the filter and 'auto' means apply the filter only if the X and Y
731sizes are scaled to more than double to avoid blurred output.  Bicubic
732filtering is not currently compatible with other Xv attributes like hue,
733contrast, and brightness, and must be disabled to use those attributes.
734The default is
735.B 'off'(0).
736
737.SH SEE ALSO
738__xservername__(__appmansuffix__), __xconfigfile__(__filemansuffix__), Xserver(__appmansuffix__), X(__miscmansuffix__)
739.IP " 1." 4
740Wiki page:
741.RS 4
742http://www.x.org/wiki/radeon
743.RE
744.IP " 2." 4
745Overview about radeon development code:
746.RS 4
747http://cgit.freedesktop.org/xorg/driver/xf86-video-ati/
748.RE
749.IP " 3." 4
750Mailing list:
751.RS 4
752http://lists.x.org/mailman/listinfo/xorg-driver-ati
753.RE
754.IP " 4." 4
755IRC channel:
756.RS 4
757#radeon on irc.freenode.net
758.RE
759.IP " 5." 4
760Query the bugtracker for radeon bugs:
761.RS 4
762https://bugs.freedesktop.org/query.cgi?product=xorg&component=Driver/Radeon
763.RE
764.IP " 6." 4
765Submit bugs & patches:
766.RS 4
767https://bugs.freedesktop.org/enter_bug.cgi?product=xorg&component=Driver/Radeon
768.RE
769
770.SH AUTHORS
771.nf
772Authors include:
773Rickard E. (Rik) Faith   \fIfaith@precisioninsight.com\fP
774Kevin E. Martin          \fIkem@freedesktop.org\fP
775Alan Hourihane           \fIalanh@fairlite.demon.co.uk\fP
776Marc Aurele La France    \fItsi@xfree86.org\fP
777Benjamin Herrenschmidt   \fIbenh@kernel.crashing.org\fP
778Michel D\(:anzer            \fImichel@tungstengraphics.com\fP
779Alex Deucher             \fIalexdeucher@gmail.com\fP
780Bogdan D.                \fIbogdand@users.sourceforge.net\fP
781Eric Anholt              \fIeric@anholt.net\fP
782