Project Home
Project Home		 Documents
Documents		 Wiki
Wiki		 Discussion Forums
Discussions		 Project Information
Project Info
Graphics/Discussion/Photon microGUI/io-graphics disables output from devc-con-hid/List of Posts
Forum Topic - io-graphics disables output from devc-con-hid: (4 Items)
   
Update
Michael Tasche
05/12/2014 5:42 AM
post110262
io-graphics disables output from devc-con-hid   
Hi, 

I am playing with an x86 system with 5 graphic outputs. 
1 x Onboard graphics and 
4 x pci graphics board (smi5xx)

The onboard graphics is only used as console interface (devc-con-hid).
The pci boards are used for 4 different Photon Sessions.

After starting the 1st io-graphics for one of the PCI-Boards, the console output(devc-con-hid) is no longer taking place
.
After slaying  io-graphics the console is back.

There is of course no Photon running for the onboard Interface.

Any idea? 

-Michael
Andrey Docuchaev
05/13/2014 5:46 AM
post110292
Re: io-graphics disables output from devc-con-hid   
Hello, Michael!

Please attach your 'display.conf' file and the output of 'pidin ar' for the 1st Photon Session, including command-line 
options of the io-graphics.

Best regards,
Andrey
Michael Tasche
05/13/2014 6:24 AM
post110293
Re: io-graphics disables output from devc-con-hid   
Hello Andrey, 

attached you will find display.conf.
Here are the info's from pidin ar :
  208927 io-graphics -dvid=0x126f,did=0x0501,deviceindex=0 -n /dev/photon0
  237603 io-graphics -dvid=0x126f,did=0x0501,deviceindex=1 -n /dev/photon1
  274469 io-graphics -dvid=0x126f,did=0x0501,deviceindex=2 -n /dev/photon2
  307240 io-graphics -dvid=0x126f,did=0x0501,deviceindex=3 -n /dev/photon3

The 4 graphics boards have no VGA-BIOS.
There is no graphics driver loaded for the onboard Interface!
The on board interface is only used by "devc-con-hid ".

It seems to me, io-graphics/devg-smi5xx.so  is errornously attaching my on board graphics by bios calls...

Regards
Michael
Attachment: Text display.conf 1.59 KB
Michael Tasche
05/14/2014 10:16 AM
post110327
Re: io-graphics disables output from devc-con-hid (solved)   
Hi all, 

seems to be a bug in many graphics drivers, used for x86.

The call  "disp_register_adapter()" uncondionally switches the device "/dev/con1" to invisible. 

I have patched the used driver devg-smi5xx.so, to solve the problem.

-Michael

Return


  A subsidiary of BlackBerry             All content ©2004-2013, QNX Software Systems