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Date:      Wed, 6 Jan 2021 11:13:41 -0800
From:      Mark Millard <marklmi@yahoo.com>
To:        Cy Schubert <Cy.Schubert@cschubert.com>
Cc:        Toomas Soome <tsoome@me.com>, David Wolfskill <david@catwhisker.org>, John Kennedy <warlock@phouka.net>, chrisb <chrisb@fastmail.net>, Current FreeBSD <freebsd-current@freebsd.org>
Subject:   Re: boot loader blank screen
Message-ID:  <932D333B-8478-4C79-976C-9394D0E93995@yahoo.com>
In-Reply-To: <202101061751.106HpGrc002714@slippy.cwsent.com>
References:  <X/NA4Jk/P%2Bih5WSD@phouka1.phouka.net> <83EB3B04-EAE8-4EC3-820B-2F5C3BADE948@me.com> <66908803-BA6F-4538-9D93-6F85A95108C9@me.com> <831788F9-F97F-4A02-A6F9-AE05219DA2E9@me.com> <X/UYcsbSkXf44Yzs@albert.catwhisker.org> <63A29589-22B5-495B-8E0D-14E13091D939@yahoo.com> <202101061751.106HpGrc002714@slippy.cwsent.com>

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On 2021-Jan-6, at 09:51, Cy Schubert <Cy.Schubert at cschubert.com> =
wrote:

> In message <63A29589-22B5-495B-8E0D-14E13091D939@yahoo.com>, Mark =
Millard=20
> write
> s:
>>=20
>>=20
>> On 2021-Jan-5, at 17:54, David Wolfskill <david at catwhisker.org> =
wrote:
>>=20
>>> On Wed, Jan 06, 2021 at 12:46:08AM +0200, Toomas Soome wrote:
>>>> ...=20
>>>>> the 58661b3ba9eb should hopefully fix the loader text mode issue, =
it woul
>> d be cool if you can verify:)
>>>>>=20
>>>>> thanks,
>>>>> toomas
>>>>=20
>>>> I think, I got it fixed (at least idwer did confirm for his system, =
thanks
>> ). If you can test this patch: =
http://148-52-235-80.sta.estpak.ee/0001-loader
>> -rewrite-font-install.patch =
<http://148-52-235-80.sta.estpak.ee/0001-loader-r
>> ewrite-font-install.patch> it would be really nice.
>>>>=20
>>>> thanks,
>>>> toomas
>>>=20
>>> I tested with each of the following "stanzas' in /boot/loader.conf,
>>> using vt (vs. syscons) in each case (though that breaks video reset
>>> on resume after suspend):
>>>=20
>>> . . .
>>=20
>> I've done no experiments with an explicit vbe_max_resolution
>> setting. My context for hw.vga.textmode=3D"0" shows up as
>> 1920x1200. (I do have the font for this set to 8x16, making
>> for lots of character cells across and down.)
>>=20
>>=20
>> For the below I do not have hw.vga.textmode=3D"0".
>>=20
>>> # hw.vga.textmode=3D"0"
>=20
> textmode=3D1 doesn't work either. Been using it for years and this is =
the=20
> first time it's borked.
>=20
>>> # vbe_max_resolution=3D1280x800
>>>=20
>>> (That is, not specifying anything for hw.vga.textmode or
>>> vbe_max_resolution.)
>>>=20
>>> This boots OK, but I see no kernel probe messages or single- to
>>> multi-user mode messages.  I can use (e.g.) Ctl+Alt+F2 to switch to
>>> vty1, see a "login: " prompt, and that (also) works.  (This is the
>>> initial symptom I had reported.)
>>=20
>> So I tried commenting out hw.vga.textmode=3D"1" and I saw everything
>> I expected in my context. Whiteish on black background (or at least
>> something very dark). I did not take videos to do detailed
>> inspections.
>=20
> Didn't work for me. Then again my old eyes didn't detect much =
difference in=20
> contrast.
>=20
>>=20
>>=20
>>> hw.vga.textmode=3D"1"
>>> # vbe_max_resolution=3D1280x800
>>>=20
>>> This works -- boots OK, and I see kernel probe (&c.) messages; this =
is a
>>> text console (mostly blue text; some white, against a dark =
background.
>>> It's a medium-light blue, so it's easy enough to read (unlike a navy
>>> blue, for example).
>>=20
>> FYI: whiteish on black (or at least something very dark)
>> in my hw.vga.textmode=3D"1" context. I saw everything here
>> as well. I did not take videos to do detailed inspections.
>>=20
>> I did not notice any way to tell hw.vga.textmode=3D"1" from
>> having no hw.vga.textmode assignment at all. But, again,
>> I did not set up for an after-the-fact detailed review of
>> what is displayed.
>=20
> Everything becomes normal when X starts, except for the three machines=20=

> downstairs which don't use X.

FYI: My testing did not span using X. I do build lumina, but
basically as part of an environment cross-check on building,
not for use. Still, I could try to start lumina if needed.


=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)




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