linux-kernel - Re: [PATCH] drm/edid: Add Vive Pro 2 to non-desktop list

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <87sff9vl6j.fsf@intel.com>
Date:   Mon, 13 Feb 2023 13:50:28 +0200
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Dmitry Osipenko <dmitry.osipenko@...labora.com>,
        Yaroslav Bolyukin <iam@...h.pw>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Cc:     David Airlie <airlied@...ux.ie>,
        Thomas Zimmermann <tzimmermann@...e.de>
Subject: Re: [PATCH] drm/edid: Add Vive Pro 2 to non-desktop list

On Mon, 13 Feb 2023, Dmitry Osipenko <dmitry.osipenko@...labora.com> wrote:
> On 2/13/23 12:56, Jani Nikula wrote:
>> On Sun, 12 Feb 2023, Dmitry Osipenko <dmitry.osipenko@...labora.com> wrote:
>>> Hi,
>>>
>>> On 1/18/22 20:00, Yaroslav Bolyukin wrote:
>>>
>>> Add a brief commit message, describing a user-visible effect of this
>>> patch. Tell that this change prevents exposing headset as a regular
>>> display to the system, while it will work with SteamVR.
>>>
>>>> Signed-off-by: Yaroslav Bolyukin <iam@...h.pw>
>>>> ---
>>>>  drivers/gpu/drm/drm_edid.c | 3 ++-
>>>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
>>>> index 12893e7be..fdb8f0a6f 100644
>>>> --- a/drivers/gpu/drm/drm_edid.c
>>>> +++ b/drivers/gpu/drm/drm_edid.c
>>>> @@ -200,9 +200,10 @@ static const struct edid_quirk {
>>>>  	EDID_QUIRK('V', 'L', 'V', 0x91be, EDID_QUIRK_NON_DESKTOP),
>>>>  	EDID_QUIRK('V', 'L', 'V', 0x91bf, EDID_QUIRK_NON_DESKTOP),
>>>>  
>>>> -	/* HTC Vive and Vive Pro VR Headsets */
>>>> +	/* HTC Vive, Vive Pro and Vive Pro 2 VR Headsets */
>>>
>>> Nit: I'd keep the original comment, or change it to a generic "HTC VR
>>> Headsets" to prevent further comment changes
>>>
>>>>  	EDID_QUIRK('H', 'V', 'R', 0xaa01, EDID_QUIRK_NON_DESKTOP),
>>>>  	EDID_QUIRK('H', 'V', 'R', 0xaa02, EDID_QUIRK_NON_DESKTOP),
>>>> +	EDID_QUIRK('H', 'V', 'R', 0xaa04, EDID_QUIRK_NON_DESKTOP),
>>>>  
>>>>  	/* Oculus Rift DK1, DK2, CV1 and Rift S VR Headsets */
>>>>  	EDID_QUIRK('O', 'V', 'R', 0x0001, EDID_QUIRK_NON_DESKTOP),
>>>>
>>>> base-commit: 99613159ad749543621da8238acf1a122880144e
>>>
>>> Please send the v2 patch with the added EDID for Cosmos VR and the
>>> addressed comments. Thanks!
>> 
>> Yeah, we'll need to EDID to check that it doesn't have the Microsoft
>> VSDB to indicate non-desktop. See 2869f599c0d8 ("drm/edid: support
>> Microsoft extension for HMDs and specialized monitors").
>
> Do you mean to skip using the EDID_QUIRK_NON_DESKTOP if MS VSDB entry
> presents in the EDID?
>
> These HTC EDIDs don't have MS VSDB, otherwise the quirk wouldn't be needed.

Okay, I didn't know that. I just observed that the original patch was
sent before the the MS VSDB parsing was added.

BR,
Jani.



-- 
Jani Nikula, Intel Open Source Graphics Center