Monitor turns off booting with HD7850

[HAL]

Boot Haiku using the radeon_hd driver and just after the rocket icon the display turns off.

1. Boot Haiku normally with a HD7XXX graphics card.

Result: just after the rocket progress icon the display turns off.

2. Boot Fail Safe Video Mode from the debug menu just before booting. Result: Haiku will boot to a normal desktop.

I was testing with GCC4 hybrid hrev44483.

[HAL]

Debug screen 1 at boot

[HAL]

Debug screen 2 at boot.

[HAL]

Debug and back trace screen 3.

[HAL]

Back trace screen 4.

[kallisti5]

this is first mention of a backtrace... I thought you only saw a black screen?

[Bouncer]

The ticket does not mention this - but it is possible that his monitor is connected either by HDMI or DisplayPort. That may account for his display appearing to turning off immediately after the rocket. From my own testing - it appears the Radeon HD drivers still do not support DP.

[HAL]

Replying to kallisti5:

this is first mention of a backtrace... I thought you only saw a black screen?

The monitor turns of if I boot normally. If I boot in debug mode so as to take a picture of each page, I can get a back trace.

[HAL]

I just found that I can boot to the desktop without Safe Mode, vesa, by having a DVI to VGA adaptor and connecting to the VGA on my LCD monitor. As it is booting the monitor itself puts a message on the screen "Out of range 1280x768". 1280x768 is the correct resolution but during boot it seems to be getting something else. I think it is getting 1280x1024. As the Desktop comes up it changes to the correct resolution for the monitor.

[kallisti5]

try again with an image hrev44532 or later. I added lots of new table code which made my HD 7970 start working 100%.

Keep in mind displayport really only works by chance when it does work atm. (DP is unfinished, although close)

[HAL]

Its booting fine now. Thanks for the quik work.

[kallisti5]

Thanks!

Stay tuned for DisplayPort support in the future! :P

Fixed via hrev44532.