From: Jani Nikula <jani.nikula@linux.intel.com>
To: Randy Dunlap <rdunlap@infradead.org>,
intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [Intel-gfx] Intel UHD resolutions
Date: Wed, 15 Sep 2021 16:02:46 +0300 [thread overview]
Message-ID: <87fsu6xa89.fsf@intel.com> (raw)
In-Reply-To: <d7487c6a-43c9-3940-4f42-b8fa31704e2e@infradead.org>
On Fri, 10 Sep 2021, Randy Dunlap <rdunlap@infradead.org> wrote:
> Hi,
>
> I would like to use QHD resolution (2560x1440) with my shiny new
> computer and display. That resolution works if I boot Windows 10
> (cough).
>
> What do I need to do to use that resolution in Linux?
>
> I first tried openSUSE 15.3 (kernel 5.3.18-59.19-default)
> then I build a v5.14 kernel and tried that.
> Both of them max out at FHD (1920x1080).
>
> I am booting with "i915.force_probe=4c8a" on the kernel command line.
I'm guessing you're hitting some dual mode adapter limit.
Please file a bug over at [1], add drm.debug=14 module parameter, and
attach dmesg from boot to hitting the issue.
BR,
Jani.
[1] https://gitlab.freedesktop.org/drm/intel/issues/new
--
Jani Nikula, Intel Open Source Graphics Center
prev parent reply other threads:[~2021-09-15 13:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-11 2:50 Intel UHD resolutions Randy Dunlap
2021-09-11 2:50 ` [Intel-gfx] " Randy Dunlap
2021-09-11 11:37 ` o1bigtenor
2021-09-11 11:37 ` [Intel-gfx] " o1bigtenor
2021-09-11 14:45 ` Randy Dunlap
2021-09-11 14:45 ` [Intel-gfx] " Randy Dunlap
2021-09-15 13:02 ` Jani Nikula [this message]
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