vt does not resume properly after zzz

[marekrud at gmail.com]

John Baldwin <jhb at freebsd.org> writes:

> On Wednesday, October 08, 2014 05:47:14 PM marekrud at gmail.com wrote:
>> John Baldwin <jhb at freebsd.org> writes:
>> > On Saturday, October 04, 2014 04:24:11 PM Kevin Oberman wrote:
>> >> On Thu, Oct 2, 2014 at 1:52 PM, <marekrud at gmail.com> wrote:
>> >> >  - DELL M1330 with Intel graphics card (Xorg used to work with intel
>> >> >
>> >> >    driver
>> >>
>> >> All of the information I can find says that this unit has nVidia
>> >> graphics,
>> >> but Intel may be a low-priced option, as well. Again, /var/log/Xorg.0.log
>> >> should have this information as should "pciconf -lv | grep -A3 vga". This
>> >> laptop goes back to 2007, so it should be using the old UMS Intel
>> >> graphics.
>> >> It should not be using VESA, but if it is, that might point out a common
>> >> thread.
>> >>
>> >> I don't know the details and the actual problem was never identified, but
>> >> I
>> >> know that some systems needed to have a kernel built with "NOOPTION VESA"
>> >> to get it to resume. I had this problem on my Lenovo T520 (which I am
>> >> using
>> >> to send this reply).
>> >
>> > That doesn't apply to his system.  I have an older HP netbook (i386) that
>> > resumes fine in text mode with syscons, but does not resume in text mode
>> > in
>> > vt(4).  (This is a case where the VESA bits actually help rather than
>> > hurt.) However, if I kldload the kms driver ('kldload i915kms') when
>> > using vt(4), then resume works fine (and it also works fine in X).
>> >
>> > Marek,
>> >
>> > Can you try 'kldload i915kms' before you suspend and see if that fixes
>> > your
>> > issue?
>>
>> 1. On the laptop with Intel graphics card, when i915kms is loaded, vt
>> resumes without problems.  On the laptop with the ATI graphics card
>> (Radeon HD 8240), I use vesa driver at the moment, and it does not
>> resume the screen.
>
> Let's just be clear:
>
> For laptop 1 with Intel graphics card:
> - syscons + text mode: resumes ok
> - syscons + X: resumes ok?
> - vt: blank screen
> - vt + i915kms + text mode: resumes ok
> - vt + X: resumes ok?


For laptop 1 with Intel graphics card:
- syscons + text mode: resumes ok
- syscons + X: resumes ok
- vt: blank screen
- vt + i915kms + text mode: resumes ok
- vt + X: blank screen
- vt + i915kms + X: resumes ok



> For laptop 2 with ATI graphics card:
> - syscons + text mode: resumes ok
> - syscons + X: resumes ok?
> - vt + text mode: blank screen
> - vt + X: ???


For laptop 2 with ATI graphics card:
- syscons + text mode: resumes ok
- syscons + X: resumes ok
- vt + text mode: blank screen
- vt + X: blank screen



> For ATI, there is a radeonkms driver I believe.  Can you try loading that when
> you are using vt(4) to see if it makes a difference?

- vt + text mode + radeonkms: blank screen



Marek