[Openchrome-users] Rv: Problems using VX855/VX875 Chrome 9 HCM Integrated Graphics

[Xavier Bachelot]

On 03/05/2014 11:18 PM, Isaac Pascual wrote:
> 
> 
> 
> El Martes 4 de marzo de 2014 22:17, Xavier Bachelot
> <xavier at bachelot.org> escribió:
> On 03/04/2014 08:13 PM, Isaac Pascual wrote:
>> Hello to all users and developers!
>>
>> First of all thanks for all the work you do!
>>
>> I have some trouble with the graphics chip VX855 the output of xinit
>> command is:
>>
>> DRM memory allocation failed -6
>>
>> Someone know whats happening?
>>
> DRM is not supported for Chrome9 chips, but this shouldn't prevent your
> GPU to work. Can you share your X log and details on your setup and what
> is happening when you start X ?
> 
> My setup is default (on Archlinux)
> 
By setup, I meant how the screen is connected to the board, but I wasn't
clear, sorry. Actually, I think I know what's is he happening from the
log and looking at the Artigo 1100 hardware spec.


> My Xorg.0.log grep by (EE):
> [  1706.859] (EE) open /dev/dri/card0: No such file or directory
> [  1706.951] (EE) CHROME(0): [drm] Failed to open DRM device for
> pci:0000:00:01.0: No such file or directory
> [  1707.008] (EE) AIGLX: reverting to software rendering
> [  1735.339] (EE) Server terminated successfully (0). Closing log file.
> 
> All log:
...snip...
> [  1706.967] (II) CHROME(0): ViaOutputsDetect
> [  1706.967] (==) CHROME(0): LVDS-0 : Digital output bus width is 12 bits.
> [  1706.967] (==) CHROME(0): LVDS-0 : DVI Center is disabled.
> [  1706.967] (==) CHROME(0): LVDS Panel will not be forced.
> [  1706.967] (==) CHROME(0): Panel size is not selected from config file.
> [  1706.967] (II) CHROME(0): Output VGA-1 has no monitor section
> [  1706.969] (II) CHROME(0): I2C device "I2C bus 1:ddc2" registered at
> address 0xA0.
> [  1706.975] (--) CHROME(0): Test for CRT with VSYNC
> [  1706.975] (II) CHROME(0): EDID for output VGA-1
> [  1706.975] (II) CHROME(0): Output VGA-1 disconnected
> [  1706.975] (WW) CHROME(0): No outputs definitely connected, trying
> again...
> [  1706.975] (II) CHROME(0): Output VGA-1 disconnected
> [  1706.975] (WW) CHROME(0): Unable to find connected outputs - setting
> 1024x768 initial framebuffer

>From the above log, I guess your board is connected to the screen with
HDMI. Unfortunately, HDMI is not support while the driver is in UMS
mode, and all you get when starting X is a black screen.
You'll have to either use the VGA port, or look a this page for
direction on how to setup KMS :
http://www.freedesktop.org/wiki/Openchrome/TtmGemKms/
KMS is still a work in progress thought and it still has a number of
limitations.

Regards,
Xavier