Oooppss, with the attachment now ...

>Date: Sun, 26 Aug 2001 22:20:54 +0200
>To: 9fans@cse.psu.edu
>From: Philippe Anel <philippe.anel@noos.fr>
>Subject: G4xx Driver Bundle, /lib/vgadb, Vesa DPMS, Howto and  Help needed...
>
>  Dear Plan9 users
>
>You'll find attached the newest version of the G400 and G450 cards
>driver.  Unfortunatly, the 2D accel feature isn't yet implemented for
>I wasn't home last week.  I'm working on it and I ask you to be
>patient a little more
>
>In order to install this driver, you must run this bundle (man bundle)
>which will copy two files "vgamga4xx.c" in "/sys/src/9/pc" and
>"mga4xx" in "/sys/src/cmd/aux/vga".  After that, you must do the
>following :
>
>In the directory /sys/src/cmd/aux/vga : in the file "data.c", you must
>add the two next lines to ctlrs[] :
>
>--------------------------------------------cut-here----
>         &mga4xx,
>         &mga4xxhwgc,
>--------------------------------------------cut-here----
>
>In the file "mkfile", you must add the line to OFILES :
>
>--------------------------------------------cut-here----
>         mga4xx.$O       \
>--------------------------------------------cut-here----
>
>In the file "vga.h", ou must add the two next lines :
>
>--------------------------------------------cut-here----
>         extern Ctlr mga4xx;
>         extern Ctlr mga4xxhwgc;
>--------------------------------------------cut-here----
>
>In the directory /sys/src/9/pc (or alphapc - alpha not tested though):
>in your kernel config file ("pcdisk" for example) add the next line :
>
>--------------------------------------------cut-here----
>         vgamga4xx       +cur
>--------------------------------------------cut-here----
>
>Finally here are a few lines from my /lib/vgadb :
>
>--------------------------------------------cut-here----
>ctlr
>         0xC002D="MATROX/Matrox G400"
>         0xC002D="MATROX/Matrox G450"
>         link=vga
>         ctlr=mga4xx linear=1
>         hwgc=mga4xxhwgc
>--------------------------------------------cut-here----
>
>I hope everything will be all right on your config and I wait for any
>feedback.  However, I found two bugs as of yet which I cant seem to be
>able to get rid off :
>
>  First, the resolutions 1920x1440x8 and 1800x1350x8 don't work on my
>computer .. sounds like the hsync and vsync were badly set. But I took
>the following values (for my vgadb) with the help of xvidtune from
>X11R6. (Here are my vgadb monitor lines)
>
>         #
>         # IIYAMA Vision Master Pro 450
>         #
>         a901ht
>         videobw=300
>                 alias=multisync
>         a901ht = 1920x1440
>                 defaultclock=297
>                 shb=2064 ehb=2288 ht=2640
>                 shs=2030
>                 vrs=1441 vre=1444 vt=1500
>                 hsync=- vsync=-
>         a901ht = 1800x1350              # 60Hz, 89.4KHz
>                defaultclock=220         # 219.5MHz @ 1800x1440
>                shb=1872 ehb=2128 ht=2248
>                shs=1824 ehs=1896
>                vrs=1356 vre=1368 vt=1394
>         a901ht = 1600x1200              # 72Hz, 90.0KHz
>                defaultclock=200         # 195.9MHz
>                shb=1664 ehb=2088 ht=2144
>                shs=1648
>                vrs=1202 vre=1208 vt=1240
>         a901ht = 1024x768
>                clock=79
>                include=1024x768
>
>The driver features some code to take care of the blanking directly
>with the hardware. In order to take care of the various blanking modes,
>I've used a variable in plan9.ini, which can take the following values :
>
>         *dpms=off
>         *dpms=suspend
>         *dpms=standby
>
>However, the 32 bits mode runs strangely.  The CRTC seems correctly
>initialized since I can see the mouse cursor. But nothing's printed on
>the screen !.  But when launching "rio", the screen becomes black (the
>frame buffer seems full) !.  When I click on the right mouse button,
>the menu appears with the current selection on mauve/purple. So, it
>seems the CRTC and the DAC ( for the pixel clock at least) are
>correctly initialized.  if someone happens to come by an idea, or a
>patch to fix one or both problems, please, tell me for I'm interested
>by any suggestion and/or comment.
>
>         Philippe,
>
>PS: I've decided not to support 15 or 16 bits resolutions which I
>consider being fake modes and only for game addicts (no hard feeling there).
>If, however, some of you are interested by these color depth, I'll add them
>when the driver will be finished (after the bugs fix and after the 2d
>accel feature).
>
>PS2: a thousand apologizes to Kenji Okatomo and to Carl D. Todaro for
>not having replied faster than that. I hope this message will help
>them to forgive me.