On Thu, 2026-05-14 at 11:28 +0530, Suraj Kandpal wrote: > In full-AUX VESA mode (aux_enable && aux_set) the driver never > touches the > native PCH PWM. If BIOS left the PWM CTL register enabled, the PCH > PWM keeps > the system alive during s2idle and blocks S0ix. This series sanitizes > that > stale BIOS state on first enable so S0ix is no longer blocked, while > keeping > runtime behaviour otherwise unchanged. > Patch 1 is a minor debug-message rename cleanup. > > Signed-off-by: Suraj Kandpal <[email protected]> > > Suraj Kandpal (2): > drm/i915/backlight: Rename debug message in the setup() callback > drm/i915/backlight: Sanitize BIOS-enabled PCH PWM in full-AUX VESA > path > > .../gpu/drm/i915/display/intel_backlight.c | 14 ++++---- > .../drm/i915/display/intel_dp_aux_backlight.c | 32 +++++++++++++---- > -- > 2 files changed, 30 insertions(+), 16 deletions(-) > Here's the info on my testing, I opened the bug in bugzilla and gitlab and tested the patch.
Tested-by: Todd Brandt <[email protected]> Reported-by: Todd Brandt <[email protected]> Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/work_items/16043 Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221486
