Surface Pro 7 Display-related failure
This computer is really important for uni, so please leave a reply with ANY information or other resource you suspect might be useful. Thanks!
Two days ago while writing in onenote, the display on my 3 year old Surface Pro 7 just froze up with thick lines of digital noise covering a large part of the screen. After restarting the computer it can't get past the Microsoft boot logo. Video output using the USB-C port is completely fine, but although it lists two displays, the OS shows the built-in display as greyed out (disconnected?).
Tried: All types of force-restarting, draining battery, booting to BIOS (can't display it)
I suspect part of the screen is broken for some reason, but what puzzles me is the boot logo? Obviously the LCD isn't broken if it can display the logo without problems. What I'm wondering now is what part of the computer is responsible for showing the Microsoft boot logo on the display?
- Is it the OS or BIOS? (In this case, this would mean the screen can accept a signal, right?)
- Is it programmed into the display board shown in this guide?
In the second case, I suspect a screen replacement wouldn't necessarily resolve anything if the display board has lost its signal in or out?
Es esta una buena pregunta?
Breaking this comment up because there is a character limit.
(Part 1 - Similar Situation)
I Dropped my surface and the screen cracked. It was still working, but the glass was shattered, and it needed to be replaced. I purchased a replacement screen from here and very carefully went through with removing and replacing it myself. However, now the new screen is plugged in and when I power it on, I get the Windows logo for 3-5seconds. It then disappears and I am stuck with a black screen. Plugging it into an external display the computer is usable. Camera (with the FaceID and LED), speakers, keyboard all work. Sound familiar to you?
- de Kyle Lawson
(Part 2 - Things To Look At:)
-in Device Manager the internal monitor is not listed under Monitors.
-My Display Adapters - Intel Iris. Device status is working properly. However, the Events tab I have some "Device not started" events. Device PCI\VEN_8086&DEV_8A5A&SUBSYS_00371414&REV_07\3&11583659&0&10 had a problem starting.
Under Human Interface Devices, I have 2 devices with error warnings. Intel Precise Touch Device - "This device cannot start. (Code 10) STATUS_DEVICE_DATA_ERROR" & Surface Tcon Device - "This device cannot start. (Code 10) STATUS_DEVICE_POWER_FAILURE"
I will be trying the smaller touch screen digitizer board you mentioned in your post, but it seems strange to me that the display would be disabled based on this board being shorted. Still worth the shot and I will let you know how it goes.
- de Kyle Lawson
@piper4123w Please do! It doesn't sound like our device managers show the same thing though. While I can't check right now, I believe that literally everything worked for me, except the display. I've asked around on different forums and apparently the boot logo on surface devices is handled by a independent chip that will show it even with the CPU/GPU removed. Since I don't know if this chip is on the display assembly or the motherboard I don't know if I should fork out the 200 euros for a new display just yet. Currently it's 400 for a microsoft (guarateed) repair vs 200 for a (probably unlikely) DIY repair.
- de Chris
@chriiis I would be interested in seeing a link to the forum that mentioned the separate chip responsible for the logo. It seems weird to have the screen be responsible for that for diagnostics reasons. Not to mention it gives hope to someone post-repair and then immediately crushes those dreams.
Anyways, The iFixIt screen is actually my second screen replacement attempt for this issue. The first screen I got form Amazon. It did the same thing but I blamed the part/non official supplier. I also have attempted to replace all ribbon cables and have a replacement touch digitizer on the way. If all of these things keep my machine broken, then I am inclined to blame the motherboard which is the most intrusive and expensive to replace.
Assuming our problems are at least similar, it is likely worth considering the Microsoft Option. I will get back to you Monday after the new digitizer board arrives but my hopes are not super high.
- de Kyle Lawson
@piper4123w I got it from badcaps.net (https://www.badcaps.net/forum/showthread...) although that was just my working theory because it was the only info I had. The block diagram of the Pro 7 didn't show any special IC but also not even the BIOS chip.
- de Chris