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Hi Bunsen team! Im configuring Helium in my new laptop. Video works and X starts correctly, but i cant set brightness (/sys/class/backlight/ is empty) and cant change resolution using ARandR tool.
This is the output of xrand.
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
1920x1080 77.00*
Ubuntu detects all resolutions and not use defualt name, eDP1 instead.
This is the VGA section of lspci -knn output:
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:3185] (rev 03)
Subsystem: Intel Corporation Device [8086:2212]
00:0e.0 Audio device [0403]: Intel Corporation Device [8086:3198] (rev 03)
Subsystem: Device [1c6c:122a]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
Not show kernel driver in use line, but Ubuntu shows i915 driver.
I have installed last version of packages firmware-misc-nonfree and xserver-xorg-video-intel.
This is the output of modinfo i915:
filename: /lib/modules/4.9.0-11-amd64/kernel/drivers/gpu/drm/i915/i915.ko
license: GPL and additional rights
description: Intel Graphics
author: Intel Corporation
author: Tungsten Graphics, Inc.
firmware: i915/bxt_dmc_ver1_07.bin
...
But when i try to load the module i get an error:
insmod /lib/modules/4.9.0-11-amd64/kernel/drivers/gpu/drm/i915/i915.ko
insmod: ERROR: could not insert module /lib/modules/4.9.0-11-amd64/kernel/drivers/gpu/drm/i915/i915.ko: Unknown symbol in module
Any suggestions? Thanks!
Last edited by pepemopap (2019-10-02 10:47:32)
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Ok, I solve it updating to kernel 4.19.67-2~bpo9+1 from Debian Stretch backports.
Touchpad works too (not in 4.9).
Thanks to all.
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