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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-09-29 21:45:36 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-09-30 11:20:40 +0300 |
| commit | f5b8c316092f2501ca32ac32f5c6303e2c58ef50 (patch) | |
| tree | 313a4b9bb6972f8279f3f3969b9b165f5e76c263 /drivers/gpu/drm/i915/display/intel_dpt.c | |
| parent | cff4c2c645cbb3e95d7aec9afb1a803dd2668ec7 (diff) | |
drm/i915: Reject user modes that don't match fixed mode's refresh rate
When using a panel with a fixed mode we don't change the refresh
rate of the display. Reject any user requested mode which doesn't
match that fixed refresh rate.
Unfortunately when Xorg sees the scaling_mode property on the
connecor it likes to automagically cook up modes whose refresh
rate is a fair bit off from the fixed refresh rate we use. So
we have to give it some extra latitude so that we don't start to
reject all of it.
v2: sDVO now uses intel_panel_compute_config() too
v3: Add a debug message to inform the user what happened
References: https://gitlab.freedesktop.org/drm/intel/-/issues/2939
References: https://gitlab.freedesktop.org/drm/intel/-/issues/3969
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210929184536.8332-1-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dpt.c')
0 files changed, 0 insertions, 0 deletions