[haiku-bugs] Re: [Haiku] #1729: [radeon] monitor turns off after boot logo

#1729: [radeon] monitor turns off after boot logo
-------------------------------------+--------------------------------------
 Reporter:  diver                    |       Owner:  euan          
     Type:  bug                      |      Status:  new           
 Priority:  normal                   |   Milestone:  R1            
Component:  Drivers/Graphics/radeon  |     Version:  R1/Development
 Keywords:                           |   Blockedby:                
 Platform:  All                      |    Blocking:                
-------------------------------------+--------------------------------------
Changes (by siarzhuk):

  * blocking:  5348 =>


Comment:

 Replying to [comment:5 axeld]:

 I have the following graphics hardware on one of our PCs:

 {{{
 device Display controller (VGA compatible controller, VGA controller)
 [3|0|0]
   vendor 1002: ATI Technologies Inc
   device 5a61: RC410 [Radeon Xpress 200]
 }}}

 This is normal PC with onboard graphics with external LCD Monitor attached
 to VGA output.

 I observe the above described behavior with r35333. Just after the system
 finishes coloring all boot icons the monitor first display an "Invalid
 signal range" message for one second than goes to "No signal" state. It is
 only possible to boot with fail-safe video mode.


 > What happens if you press "Command + Control + Escape" after a while?


 No effect on the screen but lot of tracing in the debug output. Look into
 attached softdc-07-2.log for details after "sync: device 3 couldn't sync:
 Operation not supported" line. Yes, I have pressed Alt-Ctrl-Esc and Ctrl-
 Alt-Esc twice. :-)


 > Also, if that doesn't help, can you log into the system, and execute the
 following application?


 The specific of this PC is that there is the only possibility to load
 Haiku - booting from the Live-CD. I have compiled this "DPMS reset"
 program but with "return 1;" and replaced the
 /boot/system/bin/ReadOnlyBootPrompt with it's executable. ;-) I do this
 just to automaticaly force it to be started during loading Live-CD
 session. Unfortunately that doesn't help to switch the display on.

-- 
Ticket URL: <http://dev.haiku-os.org/ticket/1729#comment:8>
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