linux-kernel - Resume freezes laptop with Nova-TD Stick dvb-t tuner

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Message-ID: <BANLkTimeOj3KvZw3+SM3WGH4dTJ8KvsPZA@mail.gmail.com>
Date:	Mon, 18 Apr 2011 13:34:42 +0200
From:	Zdenek Kabelac <zdenek.kabelac@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>, linux-dvb@...uxtv.org,
	linux-media@...r.kernel.org,
	Olivier Grenie <olivier.grenie@...com.fr>,
	Mauro Carvalho Chehab <mchehab@...hat.com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: Resume freezes laptop with Nova-TD Stick dvb-t tuner

Hi

It seems like there is something broken with dvb-t driver.

Upon resume it requests firmware load - and this is freezing laptop.

usb 3-2: new high speed USB device number 2 using ehci_hcd
usb 3-2: New USB device found, idVendor=2040, idProduct=5200
usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-2: Product: NovaT 500Stick
usb 3-2: Manufacturer: Hauppauge
usb 3-2: SerialNumber: 4031595310
IR NEC protocol handler initialized
IR RC5(x) protocol handler initialized
IR RC6 protocol handler initialized
IR JVC protocol handler initialized
IR Sony protocol handler initialized
lirc_dev: IR Remote Control driver registered, major 252
dib0700: loaded with support for 20 different device-types
IR LIRC bridge handler initialized
dvb-usb: found a 'Hauppauge Nova-TD Stick (52009)' in cold state, will
try to load a firmware
dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.20.fw'
dib0700: firmware started successfully.
dvb-usb: found a 'Hauppauge Nova-TD Stick (52009)' in warm state.
dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
DVB: registering new adapter (Hauppauge Nova-TD Stick (52009))
--
SUSPEND
RESUME
--
ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None
ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
ata1.00: configured for UDMA/100
thinkpad_acpi: ACPI backlight control delay disabled
PM: resume of devices complete after 3537.435 msecs
dvb-usb: found a 'Hauppauge Nova-TD Stick (52009)' in cold state, will
try to load a firmware
thinkpad_acpi: fan watchdog: enabling fan
--


>From this discussion:

http://marc.info/?l=linux-kernel&m=130305862617225&w=2

firmware must be kept in memory - and not loaded from disk on resume.

Zdenek
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