comet man page on Tru64

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comet(7)							      comet(7)

NAME
       comet - PowerStorm 4D10T, Elsa GLoria, IntraServer Combo device driver

SYNOPSIS
       config_driver	   comet  pseudo-device	     ws config_driver	   pci
       callout after_c	  "../bin/mkdata pci"

DESCRIPTION
       The PowerStorm 4D10T, Elsa GLoria,  and	IntraServer  Combo  cards  are
       inexpensive  graphics  accelerators based on 3DLabs' Permedia2 graphics
       chip. Supported cards offer up to 8MB of video memory and a large range
       of video formats.

   Hardware Variants
       The following three configurations are supported: 8 MB of video memory.
       PCI Vend_ID: 0x104c, Dev_ID: 0x3d07, Sub_Vend_ID:  0x1011,  Sub_Dev_ID:
       0x4d10.	 8  MB	of video memory.  PCI Vend_ID: 0x104c, Dev_ID: 0x3d07,
       Sub_Vend_ID: 0x1048.  Combination card with  PCI-PCI  bridge  chip,  P2
       graphics device, and one or two ethernet controllers. The graphics com‐
       ponent has 4MB of video memory.	PCI Vend_ID: 0x3d3d, Dev_ID: 0x0009.

   Display Resolution
       The following table details the display resolutions that are  supported
       by  these  cards.  Setting  the resolution is a task performed by the X
       Server and the associated documentation should be read for the particu‐
       lars of the mechanisms used.

					Note

       Before  setting a video mode, consult the documentation for the monitor
       attached to the graphics	 adapter  to  verify  compatibility  with  the
       desired	refresh	 rate  and  resolution. Monitors can be damaged to the
       point of doing physical damage  to  the	monitor,  other	 objects,  and
       humans.

       Hvis  Vvis  Fv  Fh	Fp    Htot Hfp	Hsyn Hbp Vtot Vfp Vsyn Vbp 640
       480  60 29.82   23.86 800  16   64   80	497  1	 3    13 640  480   65
       32.31	25.84  800   16	  64   80  497	1   3	 13 640	 480  70 34.79
       27.83 800  16   64   80	497  1	 3    13 640  480   75	37.65	 30.72
       816   24	  64   88  502	1   3	 18 640	 480  85 42.92	 35.71 832  32
       64   96	505  1	 3    21 800  600  60 37.68   39.79 1056 40  128    88
       628   1	  4    23 800  600  65 40.82   43.11 1056 40  128   88	628  1
       4    23 800  600	 70 43.96   46.42 1056 40  128	 88  628  1   4	    23
       800  600	 75 46.88   49.50 1056 16   80	160  625  1   3	   21 800  600
       85 53.64	  56.21 1048 32	  64  152  631	1   3	 27 1024 768  60 48.36
       65.00  1344  24	 136  160  806	4   6	 28 1024 768  65 52.39	 70.41
       1344 24	136  160  806  4   6	28 1024 768  70 56.42	75.83 1344  24
       136  160	 806  4	  6    28 1024 768  75 60.00   78.72 1312 16   96  176
       800  1	3    28 1024 768  85 68.68   94.50 1376 48   96	 208   808   1
       3     36 1152 870  60 54.36   86.98 1600 64  128	 256  906  1   3    32
       1152 870	 65 58.59   94.22 1600 64  128	256  906  1   3	   32 1152 870
       70 63.42	 101.47 1600 64	 128  256  906	1   3	 32 1152 870  75 67.95
       108.72 1600 64  128  256	 906  1	  3    32 1152 870  85	77.61	122.31
       1576  64	 128  232  913	1   3	 39 1152 900  60 56.58	 85.10 1504 32
       128  192	 943  2	  8    33 1152 900  65 61.30   92.19 1504 32  128  192
       943   2	  8    33 1152 900  70 66.01   99.28 1504 32  128  192	943  2
       8    33 1152 900	 75 70.73  106.37 1504 32  128	192  943  2   8	    33
       1152  900   85  80.16   120.55 1504 32  128  192	 943  2	  8    33 1280
       1024 60 63.96  107.96 1688 48  112  248 1066  1	 3    38 1280 1024  65
       69.10   117.19  1696  32	 112  224 1063	3   3	 33 1280 1024 70 74.41
       126.20 1696 32  160  224 1063  3	  3    33 1280 1024 75	79.95	134.96
       1688  16	 144  248 1066	1   3	 38 1280 1024 85 91.12	157.46 1728 48
       160  240 1072  1	  3    44 1600 1200 60 75.00  162.00 2160 64  192  304
       1250   1	  3    46 1600 1200 65 81.25  175.50 2160 64  192  304 1250  1
       3    46 1600 1200 70 87.50  189.00 2160 64  192	304 1250  1   3	    46
       1600  1200  75  93.75   202.50 2160 64  192  304 1250  1	  3    46 1600
       1280 60 80.28  173.40 2160 64  192  304 1338  1	 3    54 1600 1280  65
       86.97   187.86  2160  64	 192  304 1338	1   3	 54 1600 1280 70 93.66
       202.21 2160 64  192  304 1338  1	  3    54 1600 1280 75	100.35	216.76
       2160  64	 192  304 1338	1   3	 54 1920 1080 60 67.50	159.84 2368 32
       144  272 1125  3	  3    39 1920 1080 65 73.13  173.16 2368 32  144  272
       1125   3	  3    39 1920 1080 70 78.75  186.48 2368 32  144  272 1125  3
       3    39 1920 1080 75 84.38  199.80 2368 32  144	272 1125  3   3	    39
       1920  1200  60  75.00   193.80 2584 72  256  336 1250  3	  3    44 1920
       1200 65 81.25  209.95 2584 72  256  336 1250  3	 3    44 1920 1200  70
       87.50   226.10  2584  72	 256  336 1250	3   3	 44 1920 1200 75 93.75
       242.25 2584 72  256  336 1250  3	  3    44

       Table Legend:

       Hvis   - Visible pixels in a line (e.g. width).	Vvis   - Visible lines
       in  a  field  (e.g. height).  Fv	    - Vertical refresh rate in Hz.  Fh
       - Horizontal sync pulse frequency in KHz.  Fp	 -  Pixel  clock  fre‐
       quency in MHz.  Htot   - Pixel-equivalent duration of the full horizon‐
       tal scanning
		period.	 Hfp	- Pixel-equivalent duration of the  horizontal
       front porch.  Hsyn   - Pixel-equivalent duration of the horizontal sync
       pulse.  Hbp    -	 Pixel-equivalent  duration  of	 the  horizontal  back
       porch.  Vtot   - Line-equivalent duration of the full vertical scanning
		period.	  Vfp	  -  Line-equivalent  duration of the vertical
       front porch.  Vsyn   - Line-equivalent duration of  the	vertical  sync
       pulse.  Vbp    - Line-equivalent duration of the vertical back porch.

   Device Configuration
       The  comet  driver  supports up to 15 devices in a single system. Prior
       releases of the system software supported seven or fewer devices. Other
       software,  such as the X Server or base operating system, may put addi‐
       tional restrictions on the number of units supported.

   Device Description
       In PCI-based systems, no more than one VGA  device  can	be  configured
       into  the  system. The comet cards typically have a jumper or miniature
       switch to enable and disable VGA operations.

MESSAGES
       Device driver messages are typically logged to  /var/adm/  messages  on
       UNIX  systems.  Should  problems arise, this file should be checked for
       informational messages. Some messages of interest are:  "comet0:	 %dx%d
       cursor glyph truncated to hardware limits"

	      The  X  Server  attempted	 to use a cursor larger than the 64x64
	      limits of the hardware. Cursor glyph will	 be  displayed	incor‐
	      rectly.  Application should be brought into conformance with X11
	      expectations.  "comet0: Video pixel fifo underflowed during pre‐
	      vious video format"

	      The  flow	 of pixel data from video memory to the video DACs was
	      exhausted possibly causing visual artifacts on the  display.  It
	      is  permissible  and  expected  that this may occur once shortly
	      after booting when the device hasn't been configured. But other‐
	      wise,  this should be reported to your technical support organi‐
	      zation, including in the description the video format  currently
	      in use as well as the application running at the time.

FILES
       The driver module, built into a kernel with the doconfig command.

SEE ALSO
       Xdec(1X)

								      comet(7)
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