Re: [9front] installing 9front on Dell Optiplex 790

[James <jamex1642@gmail.com>]

On Sat, Apr 30, 2016 at 8:09 PM,  <cinap_lenrek@felloff.net> wrote:
> monitor=vesa implies that aux/vga is using the vesa driver and *not*
> the igfx driver.
>

thanks for the reply. setting monitor=auto along with the changes below and
i'm getting something on the screen now.

looks like this:

http://fqa.9front.org/reactorcat.gif

:)

seriously, it's a pretty cool rainbow coloured snow effect..
i tried a bunch of different resolutions, but still the same pattern
at different scales.

i noticed this in the log  aux/vga -V -m auto -l 1600x900x32

igfx: dpauxio: dp a, cmd 9, addr 0, len 16: receive timeout
...
x 4


that's the only error i could find and it's repeatable..

i'm using standard d-sub vga connector and tried two monitors in
total. both had the same snow effect.

thanks for the help,
james








> if you set monitor to a entry in vgadb or in case of igfx, you
> can set it to "auto" as the driver should detect the attached
> monitors itself.
>
> dump the registers and dump edid info of attached monitors:
>
> aux/vga -m auto -p
>
> then load a mode like:
>
> aux/vga -m auto -l 1280x800x32
>
> for this to work, the driver and the vgadb need to know the pci id.
>
> so you need to add ctlr entry in vgadb like
>
> ctlr
>         vid=0x8086 did=0x0102   # Intel 2nd Gen Core
>         link=vga
>         ctlr=igfx linear=1
>
> and in /sys/src/cmd/aux/vga/igfx.c:^devtype
>
> static int
> devtype(Igfx *igfx)
> {
>         if(igfx->pci->vid != 0x8086)
>                 return -1;
>         switch(igfx->pci->did){
>         case 0x0102:    /* 2nd Gen Core */
>                 return TypeSNB;
>         ...
>
> documentation on the card can be found here:
>
> https://01.org/linuxgraphics/documentation/driver-documentation-prms/2011-intel-core-processor-family
>
> --
> cinap