Blank screen after boot on Radeon Mobility 4670 HD
|Reported by:||kvark||Owned by:||kallisti5|
|Has a Patch:||yes||Platform:||x86|
I'm running Haiku A3 on MSI EX625 laptop, which has Radeon Mobility 4670 HD on board. The PCIID for this card was added to radeon_hd driver listing very recently. I've built radeon_hd driver and the accelerator as of "hrev43937", and put them in places of the original files:
With new radeon_hd I'm getting a bright garbage-looking screen on boot (screenshot to be attached). I can boot fine with fail-safe video mode (which forces VESA and disables radeon_hd).
It might be relevant that "connector_read_mode_lvds" sees my native resolution as 1400x900, where the actual screen resolution is 1366x768. However, I get the same white garbage if I try to boot with a forced 1024x768 resolution (via the boot option), which works fine with VESA driver.
Change History (74)
comment:25 by , 6 years ago
|Summary:||Blank screen after boot on Radeon Mobility 4670 HD → radeon_hd ignores lvds edid patch table resulting in incorrect lvds resolutions|
comment:27 by , 6 years ago
|Summary:||radeon_hd ignores lvds edid patch table resulting in incorrect lvds resolutions → Blank screen after boot on Radeon Mobility 4670 HD|