[haiku-bugs] Re: [Haiku] #8457: Blank screen after boot on Radeon Mobility 4670 HD

  • From: "kvark" <trac@xxxxxxxxxxxx>
  • Date: Tue, 10 Apr 2012 00:27:42 -0000

#8457: Blank screen after boot on Radeon Mobility 4670 HD
   Reporter:  kvark                       |      Owner:  kallisti5
       Type:  bug                         |     Status:  new
   Priority:  normal                      |  Milestone:  R1
  Component:  Drivers/Graphics/radeon_hd  |    Version:  R1/Development
 Resolution:                              |   Keywords:  blank radeon
 Blocked By:                              |   Blocking:
Has a Patch:  0                           |   Platform:  x86

Comment (by kvark):

 Replying to [comment:6 kallisti5]:
 > building the accelerant and driver and dropping into the folder may not
 be a good test... a lot has changed in the image since A3. Could you test
 the latest nightly from an iso or dd'ed onto a usb drive?

 Sure, I will do that and post in a moment.

 > That shows AtomBIOS is actually reporting a lvds mode of 1400x1050 for
 this card. Is 1400x1050 the correct native resolution? We pass that value
 back to Haiku as the preferred mode if a preferred mode is found.

 As was mentioned before (here and on your blog), my native screen
 resolution is 1366x768. That is what WinXP, Win8, and Linux used to
 detect, at least. I have no idea why Haiku's LVDS queries give a different

Ticket URL: <http://dev.haiku-os.org/ticket/8457#comment:8>
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