On Sun, Apr 10, 2022 at 10:05 PM James Hilliard james.hilliard1@gmail.com wrote:
On Sun, Apr 10, 2022 at 1:52 PM Patrik Jakobsson patrik.r.jakobsson@gmail.com wrote:
On Sun, Apr 10, 2022 at 9:40 PM James Hilliard james.hilliard1@gmail.com wrote:
On Sun, Apr 10, 2022 at 1:36 PM Patrik Jakobsson patrik.r.jakobsson@gmail.com wrote:
On Sat, Apr 9, 2022 at 6:23 AM James Hilliard james.hilliard1@gmail.com wrote:
Select the efi framebuffer if efi is enabled.
This appears to be needed for video output to function correctly.
Signed-off-by: James Hilliard james.hilliard1@gmail.com
Hi James, EFI_FB is its own driver and not needed by gma500 to drive its hardware. What makes you think it's required?
I wasn't getting any HDMI video output without it enabled for some reason, I assume it is doing some sort of initialization needed by gma500 during startup.
Then it sounds like you might just be using EFI_FB and not gma500. Can you provide the kernel log with drm.debug=0x1f set on kernel command-line.
Seems efifb loads first and then hands off to gma500
That is how it normally works but efifb shouldn't change the state of the currently set mode so shouldn't affect gma500.
From the logs I can see that you have LVDS (internal panel), HDMI and
DP (3 displays in total) connected. This sounds wrong. Your version of gma500 (Cedarview) doesn't support more than 2 crtcs/pipes. This might be a problem.