[Openchrome-users] VGA output disconnected

[vereecke.jan at skynet.be]

I applied the patch you sent me and tried again. The effect was the same. 
As soon as X starts the VGA screen becomes blank and switching to the 
console (Ctrl-Alt-F1) has no effect.
My guess is that the driver tries to output on the DVI connector (I 
cannot check since I don't have a flatscreen with DVI) and disables all 
output on VGA).

Is the patch you sent me not meant to do exactly that ?

FYI, this PC is a HP Thin client "hp t5630w", with both a VGA and a DVI 
connector.

On another HP thin client with an intel driver, the driver also detected 
an LVDS connector on the chip, so it though the thin client was a 
laptop and tried to output to the non-existant laptop screen.
The driver had an xorg.conf option to disable LVDS.
A similar issue may be happening here too.


On Wed, 2 Jan 2013, jan wrote:

> On 31/12/2012 19:49, James Simmons wrote:
> 
> For days I am strugling to try to get the openchrome driver to work with the
> following configuration:
> 
> uname -a
> Linux Eos 3.6.4-gentoo #7 Tue Dec 18 21:20:34 CET 2012 i686 VIA Eden Processor
> 1000MHz CentaurHauls GNU/Linux
> 
> lspci -v
> 00:01.0 VGA compatible controller: VIA Technologies, Inc. VX800/VX820 Chrome 9
> H                                      C3 Integrated Graphics (rev 11)
> (prog-if 00 [VGA controller])
>         Subsystem: VIA Technologies, Inc. VX800/VX820 Chrome 9 HC3 Integrated
> Gr                                      aphics
>         Flags: bus master, fast devsel, latency 32, IRQ 10
>         Memory at d8000000 (32-bit, prefetchable) [size=64M]
>         Memory at de000000 (32-bit, non-prefetchable) [size=16M]
>         Memory at c0000000 (32-bit, non-prefetchable) [size=256M]
>         [virtual] Expansion ROM at 3bf00000 [disabled] [size=64K]
>         Capabilities: [60] Power Management version 2
>         Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
> 
> I installed:
> x11-base/xorg-server-1.12.4
> x11-drivers/xf86-video-openchrome-0.3.1
>
>  /etc/X11/xorg.conf.d/ only contains file related to my keyboard setup, so
> everything should be autodetected.
> However, instead the monitor is put in a sleep mode, and it is not even
> possible to switch to console mode using ctrl-alt-F1.
> In fact the log says that it does not detect anything connected to the VGA
> connector.
> Is there a way to force this detection ?
> 
> ...
> 
> [   683.214] (--) CHROME(0): Detected VIA Epia M700. Card-Ids (1106|1122)
> [   683.214] (II) CHROME(0): Detected MemClk 6
> [   683.214] (II) CHROME(0): ViaGetMemoryBandwidth. Memory type: 6
> [   683.214] (II) CHROME(0): Detected TV standard: NTSC.
> [   683.214] (II) Loading sub module "ramdac"
> [   683.214] (II) LoadModule: "ramdac"
> [   683.214] (II) Module "ramdac" already built-in
> [   683.214] (II) Loading sub module "i2c"
> [   683.215] (II) LoadModule: "i2c"
> [   683.215] (II) Module "i2c" already built-in
> [   683.215] (II) CHROME(0): ViaI2CInit
> [   683.215] (II) CHROME(0): ViaI2CBus1Init
> [   683.215] (II) CHROME(0): I2C bus "I2C bus 1" initialized.
> [   683.215] (II) CHROME(0): ViaI2cBus2Init
> [   683.215] (II) CHROME(0): I2C bus "I2C bus 2" initialized.
> [   683.215] (II) CHROME(0): ViaI2CBus3Init
> [   683.215] (II) CHROME(0): I2C bus "I2C bus 3" initialized.
> [   683.215] (II) Loading sub module "ddc"
>   683.215] (II) Module "ddc" already built-in
> [   683.215] (II) CHROME(0): ViaOutputsDetect
> [   683.215] (==) CHROME(0): LVDS-0 : Digital output bus width is 12 bits.
> [   683.215] (==) CHROME(0): LVDS-0 : DVI Center is disabled.
> [   683.215] (==) CHROME(0): LVDS Panel will not be forced.
> [   683.215] (==) CHROME(0): Panel size is not selected from config file.
> [   683.215] (II) CHROME(0): Output VGA-1 has no monitor section
> [   683.217] (II) CHROME(0): I2C device "I2C bus 1:ddc2" registered at address
> 0xA0.
> [   683.220] (II) CHROME(0): ViaDisplayDisableCRT
> [   683.220] (II) CHROME(0): EDID for output VGA-1
> [   683.220] (II) CHROME(0): Output VGA-1 disconnected
> [   683.220] (WW) CHROME(0): No outputs definitely connected, trying again...
> [   683.220] (II) CHROME(0): Output VGA-1 disconnected
> [   683.220] (WW) CHROME(0): Unable to find connected outputs - setting
> 
> Let me guess you have a DVI connection instead of the VGA one. If that is 
> the case can you try this patch
> 
> diff --git a/src/via_outputs.c b/src/via_outputs.c
> index 75d312c..b0b31f6 100644
> --- a/src/via_outputs.c
> +++ b/src/via_outputs.c
> @@ -862,7 +862,7 @@ ViaOutputsDetect(ScrnInfoPtr pScrn)
>      /* TV encoder */
>      via_tv_init(pScrn);
> 
> -    if (pVia->ActiveDevice & VIA_DEVICE_DFP) {
> +    //if (pVia->ActiveDevice & VIA_DEVICE_DFP) {
>          switch (pVia->Chipset) {
>          case VIA_CX700:
>          case VIA_VX800:
> @@ -871,7 +871,7 @@ ViaOutputsDetect(ScrnInfoPtr pScrn)
>              via_dp_init(pScrn);
>              break;
>          }
> -    }
> +    //}
>  }
>
>  #ifdef HAVE_DEBUG
> 
> I have both a DVI and a VGA connector (not instead). The monitor is connected to the VGA connector. I'll try the
> situation anyway and report back.
> 
> 
> 
>