* [9fans] vga support for Via Unichrome
@ 2009-10-07 19:15 Lyndon Nerenberg - VE6BBM/VE7TFX
2009-10-07 20:37 ` W B Hacker
2009-10-08 10:21 ` Richard Miller
0 siblings, 2 replies; 6+ messages in thread
From: Lyndon Nerenberg - VE6BBM/VE7TFX @ 2009-10-07 19:15 UTC (permalink / raw)
To: 9fans
Is anyone working on Unichrome vga support?
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] vga support for Via Unichrome
2009-10-07 19:15 [9fans] vga support for Via Unichrome Lyndon Nerenberg - VE6BBM/VE7TFX
@ 2009-10-07 20:37 ` W B Hacker
2009-10-07 20:48 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2009-10-07 20:52 ` W B Hacker
2009-10-08 10:21 ` Richard Miller
1 sibling, 2 replies; 6+ messages in thread
From: W B Hacker @ 2009-10-07 20:37 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
Lyndon Nerenberg - VE6BBM/VE7TFX wrote:
> Is anyone working on Unichrome vga support?
>
>
Besides Unichrome, which CPU, RAM, MB & ~bridge chips are you trying to use it with?
ISTR having it up on a VIA C3 ~ 700 MHz, 1 GB SDRAM with embedded Unichrome
onboard about 2+ years ago..
And the CD still here boots fine on a Pentium-M Lenovo laptop.
However - it will not boot on a newer VIA C6 1.5 GHz 2 GB DDR2 RAM, also with
(newer) embedded unichrome on-board.
I suspect the VIA ~bridge chipset is not au fait with getting Plan9 to the CDR.
NB: XCPU live CD is happy - but that isn't booting a Plan9 - just hosting it on
Fedora.
Bill Hacker
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] vga support for Via Unichrome
2009-10-07 20:37 ` W B Hacker
@ 2009-10-07 20:48 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2009-10-07 21:17 ` W B Hacker
2009-10-07 20:52 ` W B Hacker
1 sibling, 1 reply; 6+ messages in thread
From: Lyndon Nerenberg (VE6BBM/VE7TFX) @ 2009-10-07 20:48 UTC (permalink / raw)
To: 9fans
> Besides Unichrome, which CPU, RAM, MB & ~bridge chips are you trying to use it with?
>
> ISTR having it up on a VIA C3 ~ 700 MHz, 1 GB SDRAM with embedded Unichrome
> onboard about 2+ years ago..
It's a 1GHz C7 EPIA mini-ITX board, CN400 chipset (I *think* -- I
can't get at it right this second to spot the model number). But I'm
interested in Unichrome generically. VESA works fine, but I only want
enough native support to make the vncv mouse turds go away. I'm just
curious to know if anyone else is working on this and wants to share
code/doc/whatever. I'm a couple of weeks away from starting (the
hardware is currently occupied doing other things).
--lyndon
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] vga support for Via Unichrome
2009-10-07 20:48 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
@ 2009-10-07 21:17 ` W B Hacker
0 siblings, 0 replies; 6+ messages in thread
From: W B Hacker @ 2009-10-07 21:17 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
Lyndon Nerenberg (VE6BBM/VE7TFX) wrote:
>> Besides Unichrome, which CPU, RAM, MB & ~bridge chips are you trying to use it with?
>>
>> ISTR having it up on a VIA C3 ~ 700 MHz, 1 GB SDRAM with embedded Unichrome
>> onboard about 2+ years ago..
>
> It's a 1GHz C7 EPIA mini-ITX board, CN400 chipset (I *think* -- I
> can't get at it right this second to spot the model number). But I'm
> interested in Unichrome generically. VESA works fine, but I only want
> enough native support to make the vncv mouse turds go away. I'm just
> curious to know if anyone else is working on this and wants to share
> code/doc/whatever. I'm a couple of weeks away from starting (the
> hardware is currently occupied doing other things).
>
> --lyndon
>
>
ACK - mine are the mini-ATX (PC-2500?).
VESA is probably all you will get - but I've not had problems with VNC artifacts
with that (when I still used it...).
Bill
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] vga support for Via Unichrome
2009-10-07 20:37 ` W B Hacker
2009-10-07 20:48 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
@ 2009-10-07 20:52 ` W B Hacker
1 sibling, 0 replies; 6+ messages in thread
From: W B Hacker @ 2009-10-07 20:52 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
W B Hacker wrote:
> Lyndon Nerenberg - VE6BBM/VE7TFX wrote:
>> Is anyone working on Unichrome vga support?
>>
>
> Besides Unichrome, which CPU, RAM, MB & ~bridge chips are you trying to
> use it with?
>
> ISTR having it up on a VIA C3 ~ 700 MHz, 1 GB SDRAM with embedded
> Unichrome onboard about 2+ years ago..
>
> And the CD still here boots fine on a Pentium-M Lenovo laptop.
>
> However - it will not boot on a newer VIA C6 1.5 GHz 2 GB DDR2 RAM, also
> with (newer) embedded unichrome on-board.
>
> I suspect the VIA ~bridge chipset is not au fait with getting Plan9 to
> the CDR.
>
> NB: XCPU live CD is happy - but that isn't booting a Plan9 - just
> hosting it on Fedora.
>
> Bill Hacker
>
Scratch that - it should boot IF the CDR is the 'zeroth' device.
Mine is not, and I am too tired to open the case and mess with it.
BTW - 9 renders very cleanly on the Lenovo at a manually-entered 1280x800x16
using the onboard Wintel 945GM/GMS/GME graphics controller, ergo I presume 9 is
in VESA mode.
The Unichrome has always been comfortable with VESA under other OS'en that don't
have a bespoke S3 driver handy, so unless you are looking for a bespoke,
accelerated driver....
Bill
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] vga support for Via Unichrome
2009-10-07 19:15 [9fans] vga support for Via Unichrome Lyndon Nerenberg - VE6BBM/VE7TFX
2009-10-07 20:37 ` W B Hacker
@ 2009-10-08 10:21 ` Richard Miller
1 sibling, 0 replies; 6+ messages in thread
From: Richard Miller @ 2009-10-08 10:21 UTC (permalink / raw)
To: 9fans
> Is anyone working on Unichrome vga support?
I made a start a few years ago, attempting to extract the register
initialisation code from via's published framebuffer driver, but
eventually I lost the will to live -- too many chipset variants,
different interfaces for lcd vs crt vs dvi vs tv, etc etc. If
there's proper documentation available I'd recommend trying that
instead.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2009-10-08 10:21 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-10-07 19:15 [9fans] vga support for Via Unichrome Lyndon Nerenberg - VE6BBM/VE7TFX
2009-10-07 20:37 ` W B Hacker
2009-10-07 20:48 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2009-10-07 21:17 ` W B Hacker
2009-10-07 20:52 ` W B Hacker
2009-10-08 10:21 ` Richard Miller
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