Dell Mon USB 收唔到信號

deardaniel2000

我用 U3219Q, 平時一條 USB C 線做曬所有野。

最近個 Mon detect唔到 video 信號，但幫laptop差電、USB Hub (Mouse KB) 繼續用到。

我暫時用多一條 HDMI 頂住。

請問有冇soulution？

hkhappy945

回覆 1# deardaniel2000

check 下dell 有冇 bios update 俾你update

deardaniel2000

回覆  deardaniel2000

check 下dell 有冇 bios update 俾你update
hkhappy945 發表於 2025-6-3 00:12

Mon 都可以update！？
張知識，謝謝師兄。我試試

maniac_corp

回覆 1# deardaniel2000

I have same experience as your case, Type-C display function lost signal for sometimes.... finally i disassembly the case and find Type-C connector (SMT type connector, without any mounting legs to enhance soldering on PCB) with fake soldering... some connection pins for the Type-C connector cannot connect to PCB well.

deardaniel2000

回覆  deardaniel2000

I have same experience as your case, Type-C display function lost signal for  ...
maniac_corp 發表於 2025-6-6 17:27

Wow! Just wow!

I guess hardware repair is a bit too much for me at this point. Haha.

^^Andy^^

Have you tried using another USB-C cable? I once have problem with the cable.

hkhappy945

回覆 3# deardaniel2000 sorry 睇錯, 應該係講你部notebook 有冇 bios update,  我有部hp notebook 有兩次都係咁, 搵番hp bios 有update, update 完ok

deardaniel2000

Have you tried using another USB-C cable? I once have problem with the cable.
^^Andy^^ 發表於 2025-6-7 00:03

試過了好多條線。

個port可以差到電，過道mouse signal，就係有一日突然video 過唔到

hkhappy945

https://www.reddit.com/r/UsbCHar ... ly_stopped_working/  試下hard reset 部notebook ?

hkhappy945

https://support.hp.com/hk-en/document/ish_1997208-1551050-16  今日我部nb 又係咁 (差到電,係冇hdmi signal), hard reset 後ok