Re: [Libreboot-dev] [Libreboot] blank screen with libreboot on x200

[Tudor SUCIU]

Hello,

I managed to trace what is happening on the X200 that I try to use with
libreboot.
It reads from spi the address 0x000200. In the libreboot image there is
0x7D at this address.
In the original rom there is 0x78.
I searched with advanced trigger but there is no second chip select edge.

Is there an obvious reason for this problem?

On Sat, Jun 25, 2016 at 11:40 PM, Tudor SUCIU <address@hidden> wrote:

> Hello,
>
> I tried the EHCI debug with the recommended beta x200 image.
>
> https://libreboot.org/beta/experimental-61-g03a48ed/rom/grub/libreboot_experimental-61-g03a48ed_grub_x200_8mb.tar.xz
>
> I suspect it's not a screen issue, but a ram issue.
> I don't get any EHCI Debug output. With the kernel parameter
> "earlyprintk=dbgp,keep" and original bios I get the printk output so the
> beaglebone black setup is buggy but working.
>
> Are there any recommended parameters in order to debug ram issues?
> I have 4 ram modules of 4 types. I have read that libreboot should be able
> to use a single module.
>
>
> On Thu, Jun 16, 2016 at 6:40 AM, Iru Cai <address@hidden> wrote:
>
>>
>>
>> On Thu, Jun 16, 2016 at 2:50 AM, Tudor SUCIU <address@hidden>
>> wrote:
>>
>>> Hello,
>>>
>>> I used the image 20150518 x200_8mb_usqwerty_vesafb.rom on a x200 type
>>> 7459-KM3.
>>> The pc starts normally, but the screen is always black. The vga output
>>> does
>>> not work either.
>>> There are some errors while writing/reading the images so the process is
>>> pretty slow.
>>> The system has proprietary bios again now. Are there any pieces of info
>>> that I should provide to help tracking the problem?
>>>
>>
>> You can connect a EHCI debug dongle to the X200 and get some debug output.
>>
>>
>>> Is there a different image(text mode) that I should try?
>>>
>>> Thank you,
>>>
>>
>>
>

scope.jpg
Description: JPEG image