Re: Linux 3.2.5
From: Matthias Schniedermeyer
Date: Tue Feb 07 2012 - 06:24:06 EST
On 07.02.2012 11:58, Matthias Schniedermeyer wrote:
> On 07.02.2012 11:19, Clemens Ladisch wrote:
> > Matthias Schniedermeyer wrote:
> > > On 06.02.2012 10:16, Greg KH wrote:
> > >> I'm announcing the release of the 3.2.5 kernel.
> > >>
> > >> It contains one PCI patch, it is up to you to decide to upgrade or not.
> > >
> > > This one makes my Soundblaster Live (alsa/emu10k1) silent.
> > > It is detected, i can e.g. change the mixer, but i can't hear any sound.
> > Back in the PCI days, the Emu10k1 chip was known to be quite inefficient
> > (many small transfers, and IIRC even latency timer bugs) and to be
> > problematic when used with other high-bandwidth PCI chips like TV capture
> > cards.
> > > There is a difference in syslog output regarding aspm, the emu10k1 line
> > > is the same.
> > Your PCIe/PCI bridge (5:0.0, iTE IT8892) which handles the PCI bus is
> > affected by the change.
> > I do not know if this is an actual hardware bug, or if the bridge is
> > just too slow to wake up the PCIe link.
> > Please show the output of "lspci -v -s 5:0".
> With 3.2.4 running:
> lspci -v -s 5:0
> 05:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8892 (rev
> 10) (prog-if 00 [Normal decode])
> Flags: bus master, fast devsel, latency 0
> Bus: primary=05, secondary=06, subordinate=06, sec-latency=32
> I/O behind bridge: 0000c000-0000cfff
> Memory behind bridge: fbe00000-fbefffff
> Capabilities: <access denied>
Ups. I did that with my user-account. Now with root:
lspci -v -s 5:0
05:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8892 (rev 10) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=05, secondary=06, subordinate=06, sec-latency=32
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fbe00000-fbefffff
Capabilities:  Express PCI/PCI-X Bridge, MSI 00
Capabilities:  Power Management version 2
Capabilities: [a0] Subsystem: Gammagraphx, Inc. (or missing ID) Device 0000
Capabilities:  Device Serial Number 00-00-00-00-00-00-00-00
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