Hi, On Tue, Oct 6, 2026 at 2:50 AM Gopikrishna Garmidi <[email protected]> wrote: > > The internal eDP panel of the Microsoft Surface Laptop 13.8" 8th Edition > is not in edp_panels[], so panel-edp falls back to conservative timings. > > EDID, read over the panel's DP AUX DDC bus: > > 00 ff ff ff ff ff ff 00 4d 10 72 15 a1 31 05 54 > 31 23 01 04 b5 1d 13 78 03 7d 77 ad 50 46 ad 26 > 0f 50 53 00 00 00 01 01 01 01 01 01 01 01 01 01 > 01 01 01 01 01 01 60 b6 00 a0 90 00 2b 60 30 20 > 3a 00 23 c2 10 00 00 18 60 b6 00 a0 90 00 56 66 > 30 20 3a 00 23 c2 10 00 00 18 00 00 00 fd 00 18 > 78 be be 2f 01 00 00 00 00 00 00 00 00 00 00 fc > 00 4c 51 31 33 38 50 31 4a 58 36 31 0a 20 01 4e > > 02 03 0f 00 e3 05 80 00 e6 06 05 01 73 6a 0b 00 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 aa > > Manufacturer: SHP > Model: 0x1572 > Made in: week 49 of 2025 > Display Product Name: 'LQ138P1JX61' > DTD 1: 2304x1536 120.000329 Hz 3:2 (291 mm x 194 mm) > DTD 2: 2304x1536 60.000164 Hz 3:2 (291 mm x 194 mm) > > No datasheet is available, so use delay_200_500_e200: it keeps the > 200 ms enable delay of the conservative fallback, but uses the 500 ms > unprepare delay of the real panels in the table. This matches the entry > for the closely related Sharp LQ120P1JX51 (SHP 0x15a7). > > Assisted-by: LLM > Signed-off-by: Gopikrishna Garmidi <[email protected]> > --- > drivers/gpu/drm/panel/panel-edp.c | 1 + > 1 file changed, 1 insertion(+)
Reviewed-by: Douglas Anderson <[email protected]> Pushed to drm-misc-next: [4/5] drm/panel-edp: Add Sharp LQ138P1JX61 (Surface Laptop 8th Ed.) commit: 7cf88d0a3f5324eb44c2ae9840568adb2374ec10
