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Date:      Mon, 14 Sep 2009 04:09:50 +0400
From:      Anonymous <swell.k@gmail.com>
To:        freebsd-current@FreeBSD.org
Cc:        Ed Schouten <ed@80386.nl>, delphij@FreeBSD.ORG, ddk ddk <ddkprog@yahoo.com>
Subject:   Re: vesa(4) and amd64
Message-ID:  <86ab0y4ca9.fsf@gmail.com>
In-Reply-To: <898308.64226.qm@web59103.mail.re1.yahoo.com> (ddk ddk's message of "Fri, 11 Sep 2009 10:50:01 -0700 (PDT)")
References:  <20090911155001.GU2829@hoeg.nl> <898308.64226.qm@web59103.mail.re1.yahoo.com>

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ddk ddk <ddkprog@yahoo.com> writes:

>> > ddk ddk wrote:
>> >=C2=A0 I think this is a problem that has added a new
>> terminal
>> >=C2=A0 teken by ed@
>> >=C2=A0=20
>> >=C2=A0 becouse there is no problem on freebsd 7 where
>> is no teken
>> >=C2=A0 where I can switch to any low mode=20
>>=20
>> Hmmm... As far as I know, syscons reinitializes the
>> terminal completely
>> when switching resolutions. Does it crash? If so, are you
>> capable of
>> obtainining a backtrace?
>>=20
>> In my newcons branch I do have a very small patch for
>> libteken that
>> changes the resizing behaviour. In my new vt console driver
>> I do resize
>> the terminal emulator without reinitializing it completely,
>> so I had to
>> make set_winsize() a bit more robust.
>>=20
>> I think it's very unlikely that this patch fixes the issue
>> you are
>> seeing, but please do try.
>>=20
>
> the problem was localized=20
> No more problems with switching to decrease the screen resolution in grap=
hics modes=20
> (I just updated to tag =3D.=20
> I used to use its working version of freebsd consisting of many patches)=
=20
>
> but exists problem in switching graphic screen back to text mode on ttyv0
> but only on ttyv0
>
> I can not provide backtrace because the system is fully freezes
>
> sequence that leads to the problem=20
> 1) boot freebsd=20
> 2) stay only on ttyv0
> 3) kldload vesa=20
> 4) vidcontrol MODE_277 (800x600x32)
> 5) vidcontrol MODE_24  (80x24 text mode)

I think r197174 fixed this. It would freeze if you leave INVARIANTS out,
but no more.

>
> The system immediately freezes
> switch to any of the consoles is an infinite beeeeeep
>
> if you do the same but on another ttyvX (/dev/ttyv1 .../dev/ttyv9)
> then there is no problem



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