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I have a BU40N Blu-Ray drive, with the 6.12.7 kernel and it doesn't show up in /dev/ , but if I boot the system with the current LTS kernel (6.6.69), it works just fine. Any tips on how to fix that? Thanks.
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Which is the latest kernel that it works with? Could you retry the device after a reboot?
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I've tried rebooting 4-5 times, switching to and from the LTS kernel and the behaviour is always the same as above.
I have now tried the following kernel versions:
6.11.9 not working
6.10.10 not working
6.9.10 not working
6.9 not working
6.8.9 working!
so the latest one that works is 6.8.9
Last edited by Alesar1 (2025-01-04 13:00:23)
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Can you post output of commands:
lsscsi -ldgsv
sudo journalctl -b
when running current kernel and lts kernel?
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Could you try the non-stable 6.8 kernel and if that also does not work we could try to bisect between 6.8 and 6.9 ^_^
sudo pacman -U https://archive.archlinux.org/packages/l/linux/linux-6.8.arch1-1-x86_64.pkg.tar.zst
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The drive does work on 6.8.0-arch1-1
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Are you confident to do the bisection on your own or do you need some help?
If you want we could also provide you with pre-built kernel images for you to test (which greatly speeds up the test time)
Good info to get you started is:
- https://docs.kernel.org/admin-guide/rep … sions.html
- https://wiki.archlinux.org/title/Kernel … egressions
Since we already determined that there are multiple issues at hand here (sleep + brightness) I would like to have a look at the sleep issue.
Additionally it would be good to see if the latest release candidate for mainline is affected:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-6.13rc5-1-x86_64.pkg.tar.zst
(note that this installs the kernel as linux-mainline, so you need to configure your bootloader to boot it (for example via grub-mkconfig -o ... or by writing the systemd-boot loader entry))
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It doesn't work with 6.13.0-rc5-1-mainline
Yes, Ι need help to do the bisection, thank you.
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Please test the following image:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.8.r8073.g480e035-1-x86_64.pkg.tar.zst
Also verify that you have booted the right image by running for example "uname -r" after boot.
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Please also post the dmesg from a boot with and without the issue.
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with
uname -r
6.8.0-1-mainline-08073-g480e035fc4c7
the drive doesn't work
dmesg:
https://0x0.st/8iLi.txt 6.12.8-arch1-1 (drive doesn't work)
https://0x0.st/8iLH.txt 6.6.69-1-lts (drive works)
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Please test the following package:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.8.r5202.g9187210-1-x86_64.pkg.tar.zst
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With 6.8.0-1-mainline-05202-g9187210eee7d the drive works.
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Please try the following package:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.8.rc6.r1453.g119b225-1-x86_64.pkg.tar.zst
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6.8.0-rc6-1-mainline-01453-g119b225f01e4 the drive works
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Please try the following package:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.8.r5971.g6cdebf6-1-x86_64.pkg.tar.zst
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6.8.0-1-mainline-05971-g6cdebf62a159 the drive doesn't work
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Please try the following:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.8.r5567.gaa7d651-1-x86_64.pkg.tar.zst
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6.8.0-1-mainline-05567-gaa7d6513d68b the drive doesn't work
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Please try:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.8.r5384.g8c9c2f85-1-x86_64.pkg.tar.zst
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6.8.0-1-mainline-05384-g8c9c2f851b5a the drive works
Last edited by Alesar1 (2025-01-05 23:31:56)
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Please try the following:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.8.rc3.r91.g5094406-1-x86_64.pkg.tar.zst
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6.8.0-rc3-1-mainline-00091-g50944062f7d2 the drive works
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Please try:
sudo pacman -U https://pkgbuild.com/\~gromit/linux-bisection-kernels/linux-mainline-v6.8.rc3.r137.g3584240-1-x86_64.pkg.tar.zst
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6.8.0-rc3-1-mainline-00137-g3584240b9ce4 the drive works
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