| Message ID | 20191121122520.10711-1-paolo.pisati@canonical.com |
|---|---|
| State | New |
| Headers | show |
| Series | [SRU,Eoan/master] UBUNTU: [Config] FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER=y | expand |
On 21.11.19 13:25, Paolo Pisati wrote: > 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 <paolo.pisati@canonical.com> Acked-by: Stefan Bader <stefan.bader@canonical.com> > --- > 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 5c54854e3e99..ff0ccc7af000 100644 > --- a/debian.master/config/config.common.ubuntu > +++ b/debian.master/config/config.common.ubuntu > @@ -3309,7 +3309,7 @@ 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 >
On 2019-11-21 13:25, Paolo Pisati wrote: > 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 <paolo.pisati@canonical.com> Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com> > --- > 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 5c54854e3e99..ff0ccc7af000 100644 > --- a/debian.master/config/config.common.ubuntu > +++ b/debian.master/config/config.common.ubuntu > @@ -3309,7 +3309,7 @@ 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 >
On 2019-11-21 13:25, Paolo Pisati wrote: > 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 <paolo.pisati@canonical.com> > --- > 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 5c54854e3e99..ff0ccc7af000 100644 > --- a/debian.master/config/config.common.ubuntu > +++ b/debian.master/config/config.common.ubuntu > @@ -3309,7 +3309,7 @@ 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 > Applied to eoan/master-next branch. Thanks, Kleber
diff --git a/debian.master/config/config.common.ubuntu b/debian.master/config/config.common.ubuntu index 5c54854e3e99..ff0ccc7af000 100644 --- a/debian.master/config/config.common.ubuntu +++ b/debian.master/config/config.common.ubuntu @@ -3309,7 +3309,7 @@ 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
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 <paolo.pisati@canonical.com> --- debian.master/config/config.common.ubuntu | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)