Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Mon, 14 Aug 2023 11:35:28 -0500
From:   Bjorn Helgaas <helgaas@kernel.org>
To:     "Greenman, Gregory" <gregory.greenman@intel.com>
Cc:     Bjorn Helgaas <bhelgaas@google.com>,
        "usa@junocomputers.com" <usa@junocomputers.com>,
        linux-wireless@vger.kernel.org, linux-pci@vger.kernel.org,
        Mario Limonciello <mario.limonciello@amd.com>,
        linux-pm@vger.kernel.org
Subject: Re: firmware-iwlwifi: Wireless AC 7265 lacks D3cold support
Message-ID: <20230814163528.GA177266@bhelgaas>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <29c5e32631abc368e7272fd193b0289ff8da0f95.camel@intel.com>
Precedence: bulk

[+cc Mario, linux-pm]

On Sun, Aug 13, 2023 at 03:33:21PM +0000, Greenman, Gregory wrote:
> On Fri, 2023-08-11 at 15:34 -0400, Juno Computers USA wrote:
> > Any updates on this?

D3cold support has been a problem area, and there are some changes in
progress [1] that could be related.

Could you possibly collect the complete dmesg logs (with a recent
upstream kernel, e.g., v6.4, if possible)?  And the output of
"sudo lspci -vv"?  And the contents of /sys/firmware/acpi/tables/?
You can attach them to the Debian bug report if that's convenient for
you.

Bjorn

[1] https://lore.kernel.org/r/20230809185453.40916-1-mario.limonciello@amd.com

> > On Aug 3 2023, at 8:01 am, Juno Computers USA <usa@junocomputers.com> wrote:
> > > Dear Maintainer,
> > > 
> > > If D3Cold?is enabled from BIOS the tablet boots without Wifi.
> > > The only two ways to enable wifi support is either by disabling
> > > D3Cold from BIOS (not ideal) or adding pcie_port_pm=off to grub
> > > 
> > > [?? 12.681303] iwlwifi 0000:01:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210
> > > 
> > > This is needed for our new Juno Tab 2
> > > 
> > > https://junocomputers.com/us/product/juno-tab-2/
> > > 
> > > I also filed this under Debian bug-tracker.
> > > 
> > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1036633
> > > Thanks,
> > > 
> > > Giovanni Caligaris
> > > Juno Computers USA
> > > P: (215) 509-5472
> > > W: https://junocomputers.com/us
> 
> This device is very old and actually already EOL, so I'll not be
> able to get any support for this internally. D3 works fine with this
> NIC on standard, off the shelf laptops, so I'd guess that the probem
> could be rooted in the tablets' PCIe hardware or maybe the BIOS
> itself.