Check MST topology change on resume
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- v2 Latest2 patches 12 repliesIn review
Changes in v2 from the cover letter
- update functions that have been renamed since the original patch
- add a null check for the cached EDID in case a new device was added
- checkpatch fixes
Patches in v2 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | drm/dp/mst: Reprobe EDID for MST ports on resumedrivers/ | +93 | 10 replies | |
| 2/2 | drm/i915/mst: Reset MST after resume when necessarydrivers/ | +6 | 0 replies |
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Cover letter [RESEND PATCH v2 0/2] Check MST topology change on resume
Updated and resending these patches from Lyude:
https://lkml.org/lkml/2016/5/19/361
https://lkml.org/lkml/2016/5/19/360
As Lyude explains in patch 1/2, we can't rely on MST hubs to handle hotplugs during suspend. This patchset will check if any EDID's changed upon resume and reset the MST connections if they did.
This resolves issues with monitors not being detected when hotplugging them during suspend.
Changes since v1:
- update functions that have been renamed since the original patch
- add a null check for the cached EDID in case a new device was added
- checkpatch fixes
Lyude (2):
drm/dp/mst: Reprobe EDID for MST ports on resume drm/i915/mst: Reset MST after resume when necessary
drivers/gpu/drm/drm_dp_mst_topology.c | 94 ++++++++++++++++++++++++++- drivers/gpu/drm/i915/intel_dp.c | 7 +- 2 files changed, 99 insertions(+), 2 deletions(-)
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