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spf=pass (aspmx1.migadu.com: domain of help-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=help-guix-bounces@gnu.org X-Migadu-Spam-Score: -3.10 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=mailbox.org header.s=mail20150812 header.b=fHuG6om1; dkim=pass header.d=mailbox.org header.s=mail20150812 header.b=J86Ceka0; dmarc=pass (policy=reject) header.from=mailbox.org; spf=pass (aspmx1.migadu.com: domain of help-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=help-guix-bounces@gnu.org X-Migadu-Queue-Id: D0488947F X-Spam-Score: -3.10 X-Migadu-Scanner: scn0.migadu.com X-TUID: qpFMUfjXV8j/ Oh sorry, I didn't wrote that. Your solution is exactly what I mean. Thank you. 29. September 2021 15:02, "Tobias Geerinckx-Rice" schrieb: > Marco, >=20 >=20Hullo and welcome! >=20 >=20"Marco Menne" via =E5=86=99=E9=81=93=EF=BC=9A >=20 >>=20I searched a lot in the net but did'nt find an useful answer for >> Guix system. >> I know to blacklist the nouveau graphics driver on boot but how >> can I blacklist it permanentely? >=20 >=20You don't mention how you do so on boot. >=20 >=20I assume you're talking about adding > =E2=80=98modprobe.blacklist=3Dnouveau[,=E2=80=A6]=E2=80=99 to the kerne= l command line[0] in > GRUB. >=20 >=20You can easily ask[1] Guix to add it to the default kernel command > line at each boot, like so: >=20 >=20(operating-system > [=E2=80=A6] > (kernel-arguments > (cons* "modprobe.blacklist=3Dnouveau[,=E2=80=A6]" > [=E2=80=A6] > %default-kernel-arguments)) > [=E2=80=A6]) >=20 >=20Don't forget to reconfigure and optionally reboot. >=20 >>=20My second question is about the hda-intel sound driver. >> I have hda-intel and nvidia-hdmi sound modules. On Slackware I >> cloud blacklist the Nvidia driver and could get the intel driver >> working. >> But as in Guix system there is no /etc/modprobe.d/ folder I >> don't know how to get my sound working. >=20 >=20You forgot to mention how you'd use /etc/modprobe.d to do so=E2=80=A6= ;-) > So here too I can only guess an answer. >=20 >=20If you just want to add default module options, you can do so on > the kernel command line as well: either manually in GRUB (to test) > or the kernel-arguments field mentioned above. >=20 >=20For a random example plucked from =E2=80=98modinfo snd_hda_intel=E2= =80=99: to > disable power saving, simply add "snd_hda_intel.power_save=3D0", and > the kernel will set this option for you whenever snd_hda_intel is > loaded, no matter when or how or who loads it. >=20 >=20Kind regards, >=20 >=20T G-R >=20 >=20[0]: > https://guix.gnu.org/manual/devel/en/guix.html#Initial-RAM-Disk > [1]: > https://guix.gnu.org/manual/devel/en/guix.html#operating_002dsystem-Ref= erence