Hello List, i was affected by the same bug. Arthur already found a workaround with somebody from alsa. Apperently there is simply a device id missing and Intel Chipset Specific Workarounds were no applied for this new Intel Chipsets (H97/Z97) The following module options line fixes the issue for me options snd-hda-intel vid=8086 pid=8ca0 snoop=0 I simply put that in a /etc/modprobe.d file until the patch makes its way into the kernel. Credits: ArchLinux Forum alsa-user@xxxxxxxxxxxxxxxxxxxxx 2014-05-21 9:28 GMT+02:00 Arthur Borsboom <arthurborsboom@xxxxxxxxx>: > I recently switched to a new motherboard: Asus Z97-Deluxe > This motherboard has a ALC1150 audio chip, which uses the snd_hda_intel > driver. > > CPU: Intel i5-4670K > Kernel: 3.14.4-1-ARCH #1 > alsa-info: https://drive.google.com/file/d/0Bymxsci1WxB1VF9vVHVMSFpjSm8/edit > > Audio is playing bad: 'radio noise', skipping, repeating. It is unusable. > Before I used Pulseaudio, but to diagnose this problem I have removed it. > Now with Alsa left, it plays a little bit better, but the problem is still > there. > > The only moment when the audio works great is when the CPU is busy, such as > compiling a Linux kernel. > Sometimes moving the mouse gives a slight improvement due to less skipping; > although the 'scratching' stays. > > The following module options have been tried but without success, with each > option I have rebooted the system. > > * options snd-hda-intel enable_msi=1 > * options snd-hda-intel enable_msi=0 > * options snd-hda-intel bdl_pos_adj=-1 > * options snd-hda-intel bdl_pos_adj=1,48 > * options snd-hda-intel bdl_pos_adj=-1,64 > * options snd-hda-intel power_save=0 > > In Arch I do get a warning in dmesg, which I can't resolve by using the > above options. > > * hda-intel: IRQ timing workaround is activated for card #0. Suggest a > bigger bdl_pos_adj. > > The addition of the kernel parameter (suggested by another user) did not > help either. > > * GRUB_CMDLINE_LINUX_DEFAULT="processor.max_cstate=2" > > When I run directly from the Linux Mint 16 x64 LiveDVD, it has the same > issue. > > My gut feeling tells me the cause might be the BIOS, the driver, power > management or CPU scheduler. > Since I have been searching for about two days straight and trying most of > the offered obvious solutions, I am now searching for active help. > > Any suggestions how to approach this audio issue? > > -- > Arthur Borsboom > Email: arthurborsboom@xxxxxxxxx > Skype: Arthur Borsboom, The Hague, The Netherlands > > ------------------------------------------------------------------------------ > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > Instantly run your Selenium tests across 300+ browser/OS combos. > Get unparalleled scalability from the best Selenium testing platform > available > Simple to use. Nothing to install. Get started now for free." > http://p.sf.net/sfu/SauceLabs > _______________________________________________ > Alsa-user mailing list > Alsa-user@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/alsa-user > ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
