From: Andy Pont <andy.pont@wonksw.tech>
To: "intel-gfx@lists.freedesktop.org" <intel-gfx@lists.freedesktop.org>
Subject: Re: Timeout with USB-C video adapter
Date: Wed, 24 Apr 2024 15:11:07 +0000 [thread overview]
Message-ID: <em975139f9-4450-4cac-8cc5-60e2313607df@04c694f6.com> (raw)
In-Reply-To: <87sezaq27u.fsf@intel.com>
Jani wrote...
>Does it work all right with the stock UEFI boot, and you're only seeing
>issues with coreboot?
With the stock UEFI solution (AMI) the USB-C HDMI adapters work booting
from the same Ubuntu disk. Interestingly, they don’t work under Windows
11 with the AMI firmware so I’m not convinced their implementation is
correct either.
>Is /sys/kernel/debug/dri/0/i915_vbt the same for both?
Yes, the VBT file built into the coreboot firmware is the one I
extracted from /sys/kernel/debug/dri/0/i915_vbt having booted into
Ubuntu.
I’ll raise it as a bug (albeit I don’t think it is the driver at fault).
-Andy.
prev parent reply other threads:[~2024-04-24 15:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-24 12:51 Timeout with USB-C video adapter Andy Pont
2024-04-24 14:12 ` Jani Nikula
2024-04-24 15:11 ` Andy Pont [this message]
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