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archfan / coreboot

Coreboot for Lenovo Thinkpad T440P with additional patches
GNU General Public License v2.0
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No start possible since version 1.2 #10

Open sudo-gedit opened 4 years ago

sudo-gedit commented 4 years ago

Hi there,

my ThinkPad T440P has not started since the first alpha version of "v1.2". The screen remains black and there is no sound. I also tried to connect external monitors, which was unfortunately unsuccessful.

First I went back to version "v1.1".

I have installed an Intel i7-4910mq and no eGpu.

Thanks for the support. :-)

archfan commented 4 years ago

Thanks for testing! I will mark these releases as broken and hopefully get some interesting debugging output once my TTL adapter arrives.

sudo-gedit commented 4 years ago

current status:

v1.2_cw-alpha6: the system does not start; black screen; no sound; no fan noise; Nothing ...; v1.2_cw-alpha4: the system starts; i can see coreboot on the screen; no boot; no keys can be entered

I hope I can help you with that.

I would like it if you would also publish the coreboot config. Unfortunately I haven't found it yet.

archfan commented 4 years ago

Thanks for keeping me updated. My TTL adapter arrived today and I'm currently doing some more testing.

I will post my default config in the next few hours.

archfan commented 4 years ago

USB debugger seems to work which is good news.

Here's the output I'm getting with the 4960 HQ installed (alpha6 build). No screen output as expected. The CPU is however correctly being recognized.

https://pastebin.com/ArG94bg9

Output with i5 installed, graphics init disabled. This is how it should look like: i5_groff.log It seems to loop over and over again. Perhaps I have to enable more verbose debug settings.

archfan commented 4 years ago

Interesting. There's no debugging output when we build a ROM from the original coreboot repository on the 4960HQ

That's all we see:

pi@raspberrypi:~ $ cat /dev/ttyGS0
USB

USB

USB