Public bug reported:
A video played with Broadcom Crystal HD acceleration will not be able to
use this acceleration after sending the machine to sleep and waking it
back up.
The syslog will show something like this:
Mar 15 07:43:43 Saffron kernel: [43680.046482] crystalhd 0000:0b:00.0:
restoring config space at offset 0xf (was 0x159, writing 0x10b)
Mar 15 07:43:43 Saffron kernel: [43680.046521] crystalhd 0000:0b:00.0:
restoring config space at offset 0x6 (was 0x4, writing 0xf0000004)
Mar 15 07:43:43 Saffron kernel: [43680.046538] crystalhd 0000:0b:00.0:
restoring config space at offset 0x4 (was 0x4, writing 0xf0800004)
Mar 15 07:43:43 Saffron kernel: [43680.046551] crystalhd 0000:0b:00.0:
restoring config space at offset 0x3 (was 0x0, writing 0x8)
Mar 15 07:43:43 Saffron kernel: [43680.046567] crystalhd 0000:0b:00.0:
restoring config space at offset 0x1 (was 0x100000, writing 0x100106)
Mar 15 07:43:43 Saffron kernel: [43680.049191] crystalhd 0000:0b:00.0: PCI INT
A -> GSI 19 (level, low) -> IRQ 19
Mar 15 07:43:43 Saffron kernel: [43680.049206] crystalhd 0000:0b:00.0: setting
latency timer to 64
Mar 15 07:43:43 Saffron kernel: [43680.049377] crystalhd 0000:0b:00.0: irq 47
for MSI/MSI-X
Mar 15 07:43:43 Saffron kernel: [43680.049439] crystalhd_hw_resume: Invalid
Arguments
Mar 15 07:43:43 Saffron kernel: [43680.049445] crystalhd 0000:0b:00.0: Crystal
HD Resume 1
The attached file goes to /etc/pm/sleep.d/ and unloads the module before
suspend and reloads it after resume. The permissions for /dev/crystalhd
are also reset to world-writable. This is not the default in Ubuntu and
I don't know if there are any security risks associated with it. You can
just leave that line out of course. Then people won't be worse off after
resume than before ... that is, only root will be able to play
accelerated video. Maybe that's for another bug report.
I agree that this workaround is not ideal. The "crystalhd_hw_resume:
Invalid Arguments" should never happen I suppose. But this is a working
kludge that might be the only way to fix this issue in time for 12.04
final.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: crystalhd-dkms 1:0.0~git20110715.fdd2f19-4
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
Date: Thu Mar 15 08:32:26 2012
EcryptfsInUse: Yes
InstallationMedia: Lubuntu 12.04 "Precise Pangolin" - Alpha amd64 (20120201.1)
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, user)
LANG=en_GB.UTF-8
SHELL=/usr/bin/fizsh
SourcePackage: crystalhd
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: crystalhd (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
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https://bugs.launchpad.net/bugs/955771
Title:
crystalhd doesn't survive suspend/resume
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