On 20-09-2022 23:08, Niklas Cassel wrote: > Readding linux-ide to CC. > > On Tue, Sep 20, 2022 at 06:23:07PM +0200, J.J. Berkhout wrote: >> Hello, >> >> Thanks for looking into this. >> I do not see anything like "ASMT109x-". >> Output of lsscsi: >> >> [0:0:0:0] cd/dvd PIONEER BD-RW BDR-207M 1.60 /dev/sr0 [11:0] > > Ok, then we can rule out the patch that adds the ASMT109x quirk. > >> >> The output with the last non-working kernel is the same. >> >> Concerning the patch: I do not (yet) known how to apply it. Help would >> very much be appreciated. > > Basically: > git clone https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > cd linux > > Try to copy the running kernel's config: > zcat /proc/config.gz > .config > > If that didn't work, try copying the config file from /boot: > cp /boot/config-$(uname -r) .config > > Since the patch is only one line, you can apply it manually now. > (Note that there are three spaces between "BD-RW BDR-207M".) > > make olddefconfig > make -j$(nproc) > > sudo make modules_install > sudo make install > > > > Looking at the logs in the bug report, you do have a AMD Green Sardine > AHCI controller. > > The commit 1527f69204fe ("ata: ahci: Add Green Sardine vendor ID as > board_ahci_mobile") added the PCI vendor and device id to the list of > supported AHCI controllers using the low power board version: > { PCI_VDEVICE(AMD, 0x7901), board_ahci_low_power }, /* AMD Green Sardine */ > > Before the commit in question, your AHCI controller relied on this > catch-all entry: > /* Generic, PCI class code for AHCI */ > { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, > PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci }, > which does not enable/allow any low power mode at all. > > Now, I do think that low power modes *should* work with this AHCI > controller. Most likely, it is simply the optical drive that does > not work well when the HBA initiates a low power mode on the link. > > You should be able to test this theory by adding libata.force=nolpm > on the kernel command line on a recent (non-working) kernel, low power > modes should then be disabled, and the drive should work again. > (You can press 'e' in grub to temporarily add something to the kernel > command line, and then ctrl+x to boot.) > > But the proper fix is probably to add a quirk for you device, either: > + { "PIONEER BD-RW BDR-207M", NULL, ATA_HORKAGE_NOSETXFER }, > or > + { "PIONEER BD-RW BDR-207M", NULL, ATA_HORKAGE_NOLPM }, > > > Kind regards, > Niklas I just tested the libata.force=nolpm kernel parameter on my system running kernel 5.15.0-48-generic x86_64 (linux mint 20.3, base Ubuntu 20.04 focal). I am sorry to say, this parameter did not solve the problem. As for your patch concerning NOSETXFER, I will try to test this shortly, but it could take one or two days (medical stuff for me and my wife). Thanks for your help. With kind regards, Jaap Berkhout
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