External monitor not displaying when connected to HDMI port

Question

MacBook Pro（13 英寸，配备 Retina 显示屏2015 年初期）

2015年3月更新的 13 英寸 MacBook Pro 配备 Retina 显示屏，型号为A1502，采用第五代英特尔酷睿 i5 和 i7 处理器，并配备 Force Touch触控板。

20 个问题查看全部 | 37配件购买

Matt @mattrh

声誉积分: 13

1

发帖于: 2019年10月29日

更多选项

External monitor not displaying when connected to HDMI port

Hi all. My MacBook Pro (Early 2015, 13 inch Retina) has been suffering from some issues lately. I usually connect my laptop to two external monitors. Monitor A connects through HDMI (which connects to my laptop’s actual HDMI port). Monitor B connects through a VGA to DisplayPort 2 Adapter.

This setup has worked fine for a few months, however, I started to notice some display connection issues earlier today when I opened up my laptop. Monitor A wasn’t displaying anything. I tried reconnecting the HDMI cable and using a different HDMI cable (that has been confirmed to work with another device). Neither worked. I tried to reset the SMC the NVRAM/PRAM but neither techniques worked.

I also connected Monitor A to my laptop through an HDMI to DisplayPort 2 adapter. This worked, and my monitor was displaying things again, so I’m guessing that this means that the problem doesn’t have to do with the monitor or the HDMI cable itself.

Is this a software or a hardware issue? Could there be a problem with the HDMI port on my computer? Also, it seems like my Mac still detects that something is connected. When I open up my Displays option, I still see Monitor A in the “Arrangement” tab. My mouse still “moves” through the monitor, even though I don’t see anything, and some program windows are “open” in monitor A (even though I can’t see anything). I can click and drag programs between my three displays.

Also, I don’t know if this could be related, but my laptop also started to have some issues with the trackpad and keyboard over the past few days. Both the keyboard and trackpad are unresponsive, and I need to connect an external keyboard/mouse in order to use my laptop. Keyboard and trackpad are unreponsive?… Could this issue be related to the HDMI port?

EDIT: Added a screenshot of CoconutBattery

回答此问题我也有这个问题

这是一个好问题吗？

是否

得分 1

2条评论

Let’s check your battery as it can swell up pressing on the keyboard and trackpad cables messing them up.

Download this gem of an app CoconutBattery take a snapshot of the window and post it here for us to see 在已经存在的问题里加入图片

由 DanJ 完成的 2019年10月29日

Sure, I've attached a screenshot to my original post.

由 Matt 完成的 2019年10月29日

添加一条评论

2个答案

Let’s check your battery as it can swell up pressing on the keyboard and trackpad cables messing them up.

Download this gem of an app CoconutBattery take a snapshot of the window and post it here for us to see 在已经存在的问题里加入图片 — DanJ

DanJ @danj 声誉积分: 496.2千 Self employed contract worker 35 338 974 · Answer 1 · 2019-10-29T19:43:33-07:00

最有帮助的答案

DanJ @danj

声誉积分: 496.2千

Self employed contract worker

35

338

974

发帖于: 2019年10月29日

更多选项

@mattrh - Well that didn't help ;-{

Time to pop the bottom cover off and visually inspect the battery. Follow this guide MacBook Pro（13 英寸，配备 Retina 显示屏2015 年初期）电池更换 for the first steps, then compare your battery to the images in the rest of the guide any of the cells seem puffy?

If the battery cells look OK then I would first try cleaning the battery when the cable crosses over and the cable its self removing any sand and lastly the bottom cover when the cable rests against.

After reseating the cable if the keyboard and trackpad still have a problem then replace the trackpad cable MacBook Pro 13" Retina (Early 2015) Trackpad Cable then replace the MacBook Pro 13" Retina (Early 2015) Trackpad following this guide MacBook Pro 13" Retina 显示屏 2015早期触摸板更换.

Once the keyboard and trackpad issue is fixed lets move back to your external display issues.