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From: "pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de>
To: Mathieu Othacehe <m.othacehe@gmail.com>
Cc: 40538@debbugs.gnu.org
Subject: bug#40538: installer: Support uvesafb to install on machines without KMS.
Date: Tue, 14 Apr 2020 10:16:52 +0200	[thread overview]
Message-ID: <20200414081652.vjdu7d6w2u5piud4@pelzflorian.localdomain> (raw)
In-Reply-To: <871roqlebf.fsf@gmail.com>

On Tue, Apr 14, 2020 at 09:24:52AM +0200, Mathieu Othacehe wrote:
> 
> Hello Florian,
> 
> > Please try adding nomodeset to the kernel parameters.  I hope this
> > makes the Intel machine work fine.
> 
> Yes it works fine with nomodeset! Do you think we can do something about
> it, besides adding a few lines in the documentation to warn that old
> hardware may require this option?
> 
> Thanks,
> 
> Mathieu

That is good to hear!  The options I know of are:

1) Make the loading of the uvesafb kernel module by the installer
conditional.  For your GPU, don’t load uvesafb, if before it worked
without.

2) Add modprobe.blacklist=i915 to the default kernel parameters (or
whatever the kernel module for this GPU is), so this kind of GPU
always only uses uvesafb.

3) Add nomodeset to the default kernel parameters for the installer,
so all GPUs always use uvesafb.

I do not know if uvesafb works on all display technologies though.

uvesafb certainly is not supported on ARM (though maybe it works; the
README of uvesafb’s helper program v86d just says it is not supported).

Regards,
Florian

  reply	other threads:[~2020-04-14  8:17 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-10 12:54 bug#40538: installer: Support uvesafb to install on machines without KMS pelzflorian (Florian Pelz)
2020-04-10 14:38 ` Ludovic Courtès
2020-04-10 14:58   ` pelzflorian (Florian Pelz)
2020-04-12  6:37     ` Bengt Richter
2020-04-12  8:35       ` Bengt Richter
2020-04-12  8:56       ` pelzflorian (Florian Pelz)
2020-04-11 18:43   ` pelzflorian (Florian Pelz)
2020-04-11 19:03     ` pelzflorian (Florian Pelz)
2020-04-11 20:59     ` Ludovic Courtès
2020-04-11 21:11       ` Efraim Flashner
2020-04-12  9:23         ` pelzflorian (Florian Pelz)
2020-04-12 14:28           ` Ludovic Courtès
2020-04-12 18:33             ` pelzflorian (Florian Pelz)
2020-04-12  9:02       ` pelzflorian (Florian Pelz)
2020-04-12 11:24         ` pelzflorian (Florian Pelz)
2020-04-12 12:33           ` pelzflorian (Florian Pelz)
2020-04-12 14:48           ` Mathieu Othacehe
2020-04-12 15:30             ` pelzflorian (Florian Pelz)
2020-04-12 17:48               ` Bengt Richter
2020-04-12 18:11                 ` pelzflorian (Florian Pelz)
2020-04-13  5:00                   ` Bengt Richter
2020-04-13  5:37                     ` pelzflorian (Florian Pelz)
2020-04-14  8:57                       ` pelzflorian (Florian Pelz)
2020-04-14  7:24               ` Mathieu Othacehe
2020-04-14  8:16                 ` pelzflorian (Florian Pelz) [this message]
2020-04-14  8:34                   ` pelzflorian (Florian Pelz)
2020-04-14 10:09                   ` Ludovic Courtès
2020-04-14 10:28                     ` pelzflorian (Florian Pelz)
2020-04-14 13:14                       ` pelzflorian (Florian Pelz)
2020-04-14 14:12                         ` Ludovic Courtès
2020-04-14 17:09                         ` Mathieu Othacehe
2020-04-14 21:31                           ` pelzflorian (Florian Pelz)

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