From: Jani Nikula <jani.nikula@linux.intel.com>
To: Paul Zimmerman <pauldzim@gmail.com>, Timo Aaltonen <tjaalton@ubuntu.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [Intel-gfx] [PATCH RFC] Revert "drm/i915: Try to use fast+narrow link on eDP again and fall back to the old max strategy on failure"
Date: Tue, 11 May 2021 15:56:38 +0300 [thread overview]
Message-ID: <877dk5v37d.fsf@intel.com> (raw)
In-Reply-To: <87a6p1v39b.fsf@intel.com>
On Tue, 11 May 2021, Jani Nikula <jani.nikula@linux.intel.com> wrote:
> On Mon, 10 May 2021, Paul Zimmerman <pauldzim@gmail.com> wrote:
>> On Mon, May 10, 2021 at 7:00 AM Timo Aaltonen <tjaalton@ubuntu.com> wrote:
>>>
>>> On 9.5.2021 7.43, Paul Zimmerman wrote:
>>> > This reverts commit 2bbd6dba84d44219387df051a1c799b7bac46099.
>>> >
>>> > Since 5.12-rc2, my Dell XPS-15 laptop has had a blank screen on boot.
>>> > The system seems to run fine other than having no display, I am able
>>> > to ssh into the machine. I don't see anything interesting in the dmesg
>>> > log. I bisected the problem down to this commit, and reverting it fixes
>>> > the problem.
>>>
>>> Have you tried with drm-tip? It has acca7762eb71bc0 which hopefully
>>> helps here.
>>
>> I picked that one commit from the drm-tip tree (wasn't sure how to merge
>> the entire tree into the kernel) and can confirm that it does fix the problem.
>> Thank you! I hope the fix will be sent to Linus pretty soon, and it will need
>> backporting to the 5.12 kernel as well.
>
> I've picked up 2bbd6dba84d4 ("drm/i915: Try to use fast+narrow link on
> eDP again and fall back to the old max strategy on failure") to
> drm-intel-fixes, and it should find itself in v5.13-rc2 and subsequently
> v5.12 stable in the coming weeks.
I mean I've picked up acca7762eb71 ("drm/i915/dp: Use slow and wide link
training for everything").
>
> BR,
> Jani.
--
Jani Nikula, Intel Open Source Graphics Center
WARNING: multiple messages have this Message-ID (diff)
From: Jani Nikula <jani.nikula@linux.intel.com>
To: Paul Zimmerman <pauldzim@gmail.com>, Timo Aaltonen <tjaalton@ubuntu.com>
Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [Intel-gfx] [PATCH RFC] Revert "drm/i915: Try to use fast+narrow link on eDP again and fall back to the old max strategy on failure"
Date: Tue, 11 May 2021 15:56:38 +0300 [thread overview]
Message-ID: <877dk5v37d.fsf@intel.com> (raw)
In-Reply-To: <87a6p1v39b.fsf@intel.com>
On Tue, 11 May 2021, Jani Nikula <jani.nikula@linux.intel.com> wrote:
> On Mon, 10 May 2021, Paul Zimmerman <pauldzim@gmail.com> wrote:
>> On Mon, May 10, 2021 at 7:00 AM Timo Aaltonen <tjaalton@ubuntu.com> wrote:
>>>
>>> On 9.5.2021 7.43, Paul Zimmerman wrote:
>>> > This reverts commit 2bbd6dba84d44219387df051a1c799b7bac46099.
>>> >
>>> > Since 5.12-rc2, my Dell XPS-15 laptop has had a blank screen on boot.
>>> > The system seems to run fine other than having no display, I am able
>>> > to ssh into the machine. I don't see anything interesting in the dmesg
>>> > log. I bisected the problem down to this commit, and reverting it fixes
>>> > the problem.
>>>
>>> Have you tried with drm-tip? It has acca7762eb71bc0 which hopefully
>>> helps here.
>>
>> I picked that one commit from the drm-tip tree (wasn't sure how to merge
>> the entire tree into the kernel) and can confirm that it does fix the problem.
>> Thank you! I hope the fix will be sent to Linus pretty soon, and it will need
>> backporting to the 5.12 kernel as well.
>
> I've picked up 2bbd6dba84d4 ("drm/i915: Try to use fast+narrow link on
> eDP again and fall back to the old max strategy on failure") to
> drm-intel-fixes, and it should find itself in v5.13-rc2 and subsequently
> v5.12 stable in the coming weeks.
I mean I've picked up acca7762eb71 ("drm/i915/dp: Use slow and wide link
training for everything").
>
> BR,
> Jani.
--
Jani Nikula, Intel Open Source Graphics Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2021-05-11 12:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-09 4:43 [PATCH RFC] Revert "drm/i915: Try to use fast+narrow link on eDP again and fall back to the old max strategy on failure" Paul Zimmerman
2021-05-09 4:43 ` [Intel-gfx] " Paul Zimmerman
2021-05-09 23:19 ` Paul Zimmerman
2021-05-09 23:19 ` [Intel-gfx] " Paul Zimmerman
2021-05-10 10:31 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for " Patchwork
2021-05-10 13:59 ` [Intel-gfx] [PATCH RFC] " Timo Aaltonen
2021-05-10 13:59 ` Timo Aaltonen
2021-05-10 20:49 ` Paul Zimmerman
2021-05-10 20:49 ` Paul Zimmerman
2021-05-11 12:55 ` Jani Nikula
2021-05-11 12:55 ` Jani Nikula
2021-05-11 12:56 ` Jani Nikula [this message]
2021-05-11 12:56 ` Jani Nikula
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