vt does not resume properly after zzz

[John Baldwin]

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

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?

-- 
John Baldwin