[coreboot] Trouble with Coreboot on Lenovo G505s

[Vladimir]

Very sorry to hear that your LCD backlight problem is not resolved yet!
Are you confident that LCD backlight is not faulty, and have you tried
reinstalling coreboot?

If answer for both questions is "yes" - then you could try these two
advices:
1) Re-download a source code of coreboot from github, compile it and flash
again to your G505s.
Since your last try - at the end of January - there were 5 commits to
"coreboot/src/mainboard/lenovo/g505s" branch,
and also some commits to the common branches, changes that affect all the
mainboards supported by coreboot.
Maybe your issue will be resolved if you would try coreboot again, with
latest sources!

2) If 1st advice doesn't work, you could open
"coreboot/src/mainboard/lenovo/g505s/buildOpts.c" file
(which is the only file from G505s branch that has a reference to "LCD")
Go to line 158, try to change the "#define BLDCFG_CFG_LCD_BACK_LIGHT_CONTROL
200" parameter.
Default value seems to be 200 for most platforms, but you could try setting
it to 0. Then compile & flash again

=== Any advices from experienced coreboot members would be very welcome! ===

On 3 April 2015 at 17:46, 1 1 <zilogpnz at gmail.com> wrote:

> No. I not solved this problem.
>
> 2015-04-03 17:08 GMT+04:00 Vladimir <quickcracktime at gmail.com>:
>
>> > On Mon Jan 26 13:07:42 CET 2015 zilogpnz wrote:
>> >> I'm trying to run Coreboot on Lenovo G505s and have a problem:
>> >> - backlight of LCD is not turn on. But on the external LCD (by CRT
>> >> connector) is all good.
>> >>
>> >> Could you help me with a solution to this problem?
>>
>>
>> Sorry for such a long reply, but what is a current status of this problem?
>> Have you resolved the LCD backlight problem with your G505s - and, if
>> yes, how?
>>
>
>
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