ATI Sapphire HD7850 crashes at boot

[HAL]

The card crashes with Haiku boot to a debug screen, unless Fail Safe video mode is enabled before boot.

1. Boot Haiku with a HD7850 AMD/ATI card

Result is crash where the desktop would nomally show. If Fail Safe Video Mode is selected the crash does not happen and Haiku boots up to the correct resolution for my monitor: 1280x768. I will upload the debug with backtrace later. The Haiku version is: hrev44441 GCC4 Hybrid.

[diver]

Please attach your syslog.

[HAL]

Debug and backtrace 1

[HAL]

Debug and backtrace 2

[diver]

Is this a new problem or it worked before?

[HAL]

Replying to diver:

Is this a new problem or it worked before?

It never worked before with this video card. It is a new card. I tried a HD6670 before this and it booted properly.

[HAL]

Syslog booting with vesa driver (Fail Safe Graphics Mode)

[kallisti5]

strange.

75	KERN: radeon_hd: init_hardware
88	KERN: radeon_hd: init_driver
89	KERN: radeon_hd: init_driver: GPU(0) Radeon HD 7800, revision = 0x0
90	KERN: radeon_hd: publish_devices
91	KERN: register_domain(1, internet)
92	KERN: radeon_hd: find_device
93	KERN: loaded driver /boot/system/add-ons/kernel/drivers/dev/graphics/radeon_hd

The backtrace makes it look like my thermal query is failing....

[kallisti5]

yup.. forgot to add card register base to the register offset. Thanks for the *good* catch :)

fix commited in hrev44453

[HAL]

I booted with hrev44483 and had to enable Failsafe Video Mode still. This time the result was a bit different from the bug I reported here. The screen goes blank and the monitor shuts off, after the rocket icon. This might be a different bug now.

[kallisti5]

I get the same problem now on my 7970. Displayport works however (go figure)

Please submit a new ticket. Fixing the 7xxx is definitely on my short-list of todo items.