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Re: [Libreboot] lcd-panel 1440x900 not working (external monitor ok)

From: Leah Rowe
Subject: Re: [Libreboot] lcd-panel 1440x900 not working (external monitor ok)
Date: Sat, 30 Jul 2016 01:11:37 +0100
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You can get them using cbmem -c

cbmem is in lbireboot under coreboot/util in one of the coreboot src
directories. You might also be able to get the same logs from serial
device (ehci debug dongle) but I'm guessing you don't have that?

If you can't do these things, don't worry,it's not critical

Op 29/07/16 om 13:59 schreef Marcel Maci:
> Hi Leah, Excuse my newbie question: what do you mean by coreboot
> logs? The file dmesg or any other file under /var/log? Metal
> chassis: of course, but note that I'm a complete amateur (so my
> soldering skills are not good ...) Marcel
> On Thu, 28 Jul 2016 23:13:12 +0100 Leah Rowe <address@hidden>
> wrote:
> Hi Marcel,
> Op 28/07/16 om 18:32 schreef Marcel Maci:
>>>> Hi Leah
>>>> Thx for your answer. I tried experimental_86_g07ed7f9 with
>>>> my Thinkpad T400 today. Everything is running (I can tell
>>>> from the noise of the HDD and also indicator of wifi comes up
>>>> after blindly logging into the system), but graphics fail
>>>> completely: not even external VGA-Monitor works and LCD-panel
>>>> doesnt even flicker. Sewed an opening in the metal chassis
>>>> today, so that I can access the flash chip more easily now
>>>> (see photo attached, I was really fed up with all those
>>>> screws, the heatsink and thermal paste ... :-), so flashing
>>>> and testing a new image is much more straightforward now.
>>>> As to the Thinkpad x60s: the improvements sound great, but I
>>>> will leave it as it is for the moment (I use it as my main
>>>> computer for office work at the moment, so it has to work ...
>>>> ;-), but I have another Thinkpad x60 (not the s model) which
>>>> I can try instead.
>>>> Let me know if you want me to test another release
>>>> candidate.
>>>> Marcel
> Thank you for your report. If you also have coreboot logs, that
> would be great.
> It seems that upstream coreboot has a regression somewhere in
> native graphics initialization on the T400. Previous betas worked,
> before we updated the revision of coreboot used for your laptop.
> We'll have to revert back to the previous revision for now, and
> disable text mode on it, until this can be fixed. Other people also
> reported the same issue as you with the T400.
> We also need to do this for now on X200, because USB is broken for 
> some reason in text mode on that system (unless it's fixed).
> By the way, what you've done to that metal chassis around the board
> is not good. That part of it is needed for structural integrity. If
> you want easier access to the chip, you could solder wires and
> route those instead. You've already done it now, so no point
> worrying.

- -- 
Leah Rowe

Libreboot developer

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