4

Dears, I installed the 4.4 rc7 kernel on my ubuntu 15.10 following this page github.com/awesomebytes/ubuntu14_dell_xps13_9350 just replacing code for rc6 with code for rc7.

when installing I got an error message that i915 was not found, as this seems linked to 3D acceleration, I am a bit worried that I am loosing some performance. What could/should I do ?

according to first comment I now installed rc8, I still used the same install script as in the link above.

Here is the output

Sélection du paquet linux-headers-4.4.0-040400rc8 précédemment
désélectionné. (Lecture de la base de données... 291800 fichiers et
répertoires déjà installés.) Préparation du dépaquetage de
linux-headers-4.4.0-040400rc8_4.4.0-040400rc8.201601051225_all.deb ...
Dépaquetage de linux-headers-4.4.0-040400rc8
(4.4.0-040400rc8.201601051225) ... Sélection du paquet
linux-headers-4.4.0-040400rc8-generic précédemment désélectionné.
Préparation du dépaquetage de
linux-headers-4.4.0-040400rc8-generic_4.4.0-040400rc8.201601051225_amd64.deb
... Dépaquetage de linux-headers-4.4.0-040400rc8-generic
(4.4.0-040400rc8.201601051225) ... Sélection du paquet
linux-image-4.4.0-040400rc8-generic précédemment désélectionné.
Préparation du dépaquetage de
linux-image-4.4.0-040400rc8-generic_4.4.0-040400rc8.201601051225_amd64.deb
... Done. Dépaquetage de linux-image-4.4.0-040400rc8-generic
(4.4.0-040400rc8.201601051225) ... Paramétrage de
linux-headers-4.4.0-040400rc8 (4.4.0-040400rc8.201601051225) ...
Paramétrage de linux-headers-4.4.0-040400rc8-generic
(4.4.0-040400rc8.201601051225) ... Examining
/etc/kernel/header_postinst.d. run-parts: executing
/etc/kernel/header_postinst.d/dkms 4.4.0-040400rc8-generic
/boot/vmlinuz-4.4.0-040400rc8-generic : Unable to find an initial ram
disk that I know how to handle. Will not try to make an initrd. :
Unable to find an initial ram disk that I know how to handle. Will not
try to make an initrd. Error! Problems with depmod detected. 
Automatically uninstalling this module. DKMS: Install Failed (depmod
problems).  Module rolled back to built state. Paramétrage de
linux-image-4.4.0-040400rc8-generic (4.4.0-040400rc8.201601051225) ...
Running depmod. update-initramfs: deferring update (hook will be
called later) Examining /etc/kernel/postinst.d. run-parts: executing
/etc/kernel/postinst.d/apt-auto-removal 4.4.0-040400rc8-generic
/boot/vmlinuz-4.4.0-040400rc8-generic run-parts: executing
/etc/kernel/postinst.d/dkms 4.4.0-040400rc8-generic
/boot/vmlinuz-4.4.0-040400rc8-generic : Unable to find an initial ram
disk that I know how to handle. Will not try to make an initrd.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools
4.4.0-040400rc8-generic /boot/vmlinuz-4.4.0-040400rc8-generic update-initramfs: Generating /boot/initrd.img-4.4.0-040400rc8-generic
W: Possible missing firmware /lib/firmware/i915/skl_guc_ver4.bin for
module i915 run-parts: executing /etc/kernel/postinst.d/pm-utils
4.4.0-040400rc8-generic /boot/vmlinuz-4.4.0-040400rc8-generic run-parts: executing /etc/kernel/postinst.d/unattended-upgrades
4.4.0-040400rc8-generic /boot/vmlinuz-4.4.0-040400rc8-generic run-parts: executing /etc/kernel/postinst.d/update-notifier
4.4.0-040400rc8-generic /boot/vmlinuz-4.4.0-040400rc8-generic run-parts: executing /etc/kernel/postinst.d/zz-update-grub
4.4.0-040400rc8-generic /boot/vmlinuz-4.4.0-040400rc8-generic Création du fichier de configuration GRUB… Attention : Définir GRUB_TIMEOUT à
une valeur non nulle si GRUB_HIDDEN_TIMEOUT est définie n’est plus
possible. Image Linux trouvée : /boot/vmlinuz-4.4.0-040400rc8-generic
Image mémoire initiale trouvée :
/boot/initrd.img-4.4.0-040400rc8-generic Image Linux trouvée :
/boot/vmlinuz-4.4.0-040400rc7-generic Image mémoire initiale trouvée :
/boot/initrd.img-4.4.0-040400rc7-generic Image Linux trouvée :
/boot/vmlinuz-4.2.0-23-generic Image mémoire initiale trouvée :
/boot/initrd.img-4.2.0-23-generic Image Linux trouvée :
/boot/vmlinuz-4.2.0-22-generic Image mémoire initiale trouvée :
/boot/initrd.img-4.2.0-22-generic Image Linux trouvée :
/boot/vmlinuz-4.2.0-16-generic Image mémoire initiale trouvée :
/boot/initrd.img-4.2.0-16-generic Found memtest86+ image:
/memtest86+.elf Found memtest86+ image: /memtest86+.bin fait

Installing BCM4350 driver Adding initramfs rules to load i915
(graphics) and nvme (SSD) update-initramfs: Generating
/boot/initrd.img-4.4.0-040400rc8-generic W: Possible missing firmware
/lib/firmware/i915/skl_guc_ver4.bin for module i915 update-initramfs:
Generating /boot/initrd.img-4.4.0-040400rc7-generic W: Possible
missing firmware /lib/firmware/i915/skl_guc_ver4.bin for module i915
update-initramfs: Generating /boot/initrd.img-4.2.0-23-generic
update-initramfs: Generating /boot/initrd.img-4.2.0-22-generic
update-initramfs: Generating /boot/initrd.img-4.2.0-16-generic Done,
now you can reboot (maybe you'll need to do it twice).

It seems that the i915 is at the end of the script on this part

sudo bash -c "echo 'i915
nvme' >> /etc/initramfs-tools/modules"
sudo update-initramfs -u -k all

It also yields some more issues before as well, but which seems less of a worry (DKMS is driver for the usb wifi dongle which I don't need anymore).

Thx, Timothé

closed as off-topic by David Foerster, Eric Carvalho, Fabby, Pilot6, waltinator Feb 7 '16 at 19:22

  • This question does not appear to be about Ubuntu within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

  • Try Kernel 4.4-rc8. Due to some issues there was a delay before they got posted on the mainline ppa. However, the successful rc8 builds just got posted about an hour ago. – Doug Smythies Jan 5 '16 at 19:31
  • And yes, there are issues with suspend. For one example (there are a few), see here – Doug Smythies Jan 5 '16 at 19:38
  • Could you edit your question and add the exact error message text. You should have this file: /lib/modules/4.4.0-040400rc7-generic/kernel/drivers/gpu/drm/i915/i915.ko – Doug Smythies Jan 5 '16 at 19:54
  • 4
    I'm voting to close this question as off-topic because custom kernels are off topic. – David Foerster Feb 3 '16 at 7:04
  • 3
    How is this off-topic? It is because lack of hardware support of current Ubuntu (not +1, not non-supported) that we have to go custom kernel. It could be tagged as not "official" kernel, but shouldn't be off-topic, should it? – Dolanor Feb 17 '16 at 11:34
2

I replaced curl with wget and this worked perfectly in regards to Possible missing firmware /lib/firmware/i915/skl_guc_ver4.bin for module i915

curl -O http://de.archive.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.157_all.deb
dpkg -i linux-firmware_1.157_all.deb
sudo update-initramfs -u -k all

1

I could solve the error, by downloading the missing module here: https://01.org/linuxgraphics/downloads/sklgucver43

Unfortunately I am doubtfull this solves everything, play I play avideo in VLC with graphics acceleration (overlay mode), I can still not resize the video, but I will open a separate request for this.

Timothé

  • This actually fixed my long-lasting problem with VLC, and now the video resizes well! – Ho1 Mar 3 '16 at 15:44

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