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N2 drmfix #376

Open OtherCrashOverride opened 5 years ago

OtherCrashOverride commented 5 years ago

Note: FBDEV emulation needs to be enabled in the defconfig.

mdrjr commented 5 years ago

hi @OtherCrashOverride if this actually fixes the fbdev emulation on DRM can you include in your PR a change on defconfig to enable it as well?

OtherCrashOverride commented 5 years ago

@mdrjr, Enabling the feature has the potential to cause an infinite boot loop if there are any issues. This condition can only be recovered by using a second device like a PC to modify the boot.ini: drm_kms_helper.fbdev_emulation=0

I have only tested with 1080p currently. The behavior with 4K/HDR (2160p) needs to be verified on different monitors with different EDIDs. Therefore, I felt it best that HardKernel add the patch to enable it after they have tested it under various monitor configurations.