From 0552deb8f1360886a67b34a4eada425b3e083846 Mon Sep 17 00:00:00 2001 From: Paolo Pisati Date: Thu, 21 Nov 2019 13:25:00 +0100 Subject: [PATCH] UBUNTU: [Config] FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER=y BugLink: https://bugs.launchpad.net/bugs/1836858 Impact: Flickerfree boot doesn't work with Eoan and Focal kernels - the flicker occurs seemingly during kernel startup following this pattern: 1. BIOS logo on a black background 2. Display mode resets, no image on a black background briefly 3. BIOS logo on a black background According to upstream, the required kernel option to achieve it (coupled with the quiet cmdline) is FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER. Fix: Apply the config change, recompile and reboot - a test kernel was provided and the reporter of this bug said "it doesn't completely solve the issue, but it's a step in the right direction, so please enable it". Regression potential: Low, config change for an option that is upstream. Proposing for Eoan and Focal. Signed-off-by: Paolo Pisati Acked-by: Stefan Bader Acked-by: Kleber Sacilotto de Souza Signed-off-by: Kleber Sacilotto de Souza --- debian.master/config/config.common.ubuntu | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/debian.master/config/config.common.ubuntu b/debian.master/config/config.common.ubuntu index e93decdd2395..212beaae80a0 100644 --- a/debian.master/config/config.common.ubuntu +++ b/debian.master/config/config.common.ubuntu @@ -3310,7 +3310,7 @@ CONFIG_FPGA_MGR_XILINX_SPI=m CONFIG_FPGA_MGR_ZYNQMP_FPGA=m CONFIG_FPGA_REGION=m CONFIG_FRAMEBUFFER_CONSOLE=y -# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set +CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER=y CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y CONFIG_FRAME_POINTER=y -- 2.39.5