Comment # 10
on bug 90320
from Samir Ibradžić
(In reply to N.Leiten from comment #8) > Created attachment 115731 [details] > FHD Panel Datasheet. > > Due this datasheet the panel looks the same as for DP configuration > comparing whith N133HSE-EA1 (asus u38n) panel. So it needs 2 lanes to init > video stream. > > As for your dmesg, I see problem in dp_aux_ch and training procedure (the > voltage and emphasis is 0 which is not right at this point). Need to debug > further when I publish my patch and if it not help. > > One more thing, do you have FullHD (1920x1080) panel or WHD (1366x768) one. > Because on Lenovo site I see Thinkpad e455 base model with WHD. The last one > need only 1 DisplayPort lane to work. Are you saying these may be an issue: [drm:radeon_dp_aux_transfer_native] dp_aux_ch flags not zero: 00000201 [drm:drm_dp_i2c_do_msg] transaction failed: -5 ?
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