Lenovo X230 - suspend/resume video issues

[Adrian Chadd]

Hi,

Ignore xorg. Like, just pretend I don't even know it exists. I'm just
using syscons. Why isn't the video display resuming?




-adrian

On 8 August 2013 22:34, Kevin Oberman <rkoberman at gmail.com> wrote:
> On Thu, Aug 8, 2013 at 4:00 PM, Adrian Chadd <adrian at freebsd.org> wrote:
>>
>> Hiya,
>>
>> I have an Lenovo Thinkpad X230 running FreeBSD-10. I'd like some help
>> in sorting out the following issues:
>>
>> * the ACPI and IBM sysctls for twiddling the LCD brightness don't at all
>> work
>> * The backlight comes on during resume, but the video definitely doesn't
>> * I'm still investigating whether xorg actually comes back from resume
>> (and it's a video problem) or whether it hangs on resume.
>>
>> The files are here:
>>
>> http://people.freebsd.org/~adrian/laptop/lenovo_x230
>>
>> Thanks!
>>
>>
>> -adrian
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>
>
> Adrian,
>
> Take a look at the thread "Fixing X220 Video The Right Way" in the ACPI ML.
> Also look at "Fixing suspend/resume on Lenovo x220". Both went over several
> months, but ended in mid-June. Whether this aproach will work on the X230 is
> not entirely clear. Use of ACPI_CALL is really a mostly unworkable kludge.
>
> The suspend/resume issues will almost certainly not be resolved on any
> platform with recent Intel or Radeon GPUs requiring KMS until the newcons
> code is committed. That likely won't resolve all issues, but will deal with
> a major one and one that largely blocks resolving (or even identifying)
> others.
>
> I have a T550 which has a BIOS that largely is similar to the X220. One
> issue that Thinkpads of this vintage all seem to have is the inability to
> boot a gpt disk.. (Actually, if you have another drive (even USB) with
> booteasy on it, you can, but BIOS refuses to run an MBR from a GPT formatted
> disk. It assumes that GPT disks are all EUFI, which is seriously broken. I'd
> love to see that this is fixed. Guess I should see if Lenovo has a new BIOS
> that might fix it.
> --
> R. Kevin Oberman, Network Engineer
> E-mail: rkoberman at gmail.com