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Hi everyone,
The screen of my laptop is too bright and I have not been able to change it. I had tried Fn+F2 or Fn+F3 or any other combination but nothing is working. I install xbacklight and when run:
# xbacklight -set 50
It returns with:
No outputs have backlight property
Also the directory /sys/class/backlight/ is empty. Here is the content of /sys/class directory:
# ls /sys/class/
ata_device block dma graphics input memstick_host phy scsi_device spi_master video4linux
ata_link bluetooth dmi hidraw iommu misc powercap scsi_disk thermal vtconsole
ata_port bsg drm hwmon leds mmc_host power_supply scsi_generic tpm watchdog
backlight devcoredump firmware i2c-adapter mei net rfkill scsi_host tty wmi
bdi devfreq gpio ieee80211 mem pci_bus rtc sound vc
xfce-power-manager does not have the option for change the brightness of the screen...
Here some command outputs
# lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Device 191b (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 139b (rev a2)
# glxinfo | egrep "OpenGL vendor|OpenGL renderer"
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.5, 256 bits)
lshw -c video
*-display UNCLAIMED
description: VGA compatible controller
product: NVIDIA Corporation
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list
configuration: latency=0
resources: memory:de000000-deffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:e000(size=128) memory:df000000-df07ffff
*-display UNCLAIMED
description: VGA compatible controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 06
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list
configuration: latency=0
resources: memory:dd000000-ddffffff memory:a0000000-bfffffff ioport:f000(size=64) memory:c0000-dffff
# lspci -vnn | grep VGA -A 12
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:191b] (rev 06) (prog-if 00 [VGA controller])
Subsystem: CLEVO/KAPOK Computer Device [1558:0152]
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at dd000000 (64-bit, non-prefetchable) [size=16M]
Memory at a0000000 (64-bit, prefetchable) [size=512M]
I/O ports at f000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [40] Vendor Specific Information: Len=0c <?>
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [ac] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [100] #1b
Capabilities: [200] Address Translation Service (ATS)
--
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:139b] (rev a2) (prog-if 00 [VGA controller])
Subsystem: CLEVO/KAPOK Computer Device [1558:0152]
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at de000000 (32-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
Memory at d0000000 (64-bit, prefetchable) [size=32M]
I/O ports at e000 [disabled] [size=128]
Expansion ROM at df000000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [250] Latency Tolerance Reporting
# modinfo -F filename `lshw -c video | awk '/configuration: driver/{print $2}' | cut -d= -f2`
modinfo: ERROR: missing module or filename.
# lspci -nnk | grep -i vga -A3 | grep 'in use'
(no output)
# xrandr --listproviders
Providers: number : 0
I do appreciate any suggestion.
Kind regards
Naddan
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Can you use xrandr directly? ( 'man xrandr' ref. --brightness)
--brightness brightness
Multiply the gamma values on the crtc currently attached to the output to specified floating value.
Useful for overly bright or overly dim outputs. However, this is a software only modification, if your
hardware has support to actually change the brightness, you will probably prefer to use xbacklight.
For example (use the connected display name for your system)
xrandr --output eDP-1-1 --brightness 1.1
I use this script bound to keybinds...
#!/bin/bash
##
BRIGHTNESS="$HOME/.config/mon-brightness.rc"
if [[ -f $BRIGHTNESS ]];then
VAL=$(<$BRIGHTNESS)
else
VAL=1.0
echo $VAL > $BRIGHTNESS
fi
if [[ $1 = plus ]];then
VAL=$(awk -v "VAL=$VAL" 'BEGIN { print VAL + 0.1 }')
elif [[ $1 = minus ]];then
VAL=$(awk -v "VAL=$VAL" 'BEGIN { print VAL - 0.1 }')
else
notify-send -t 3000 "Use 'brightness plus/minus'"
exit 1
fi
echo $VAL > $BRIGHTNESS
XCMND="xrandr --output eDP-1-1 --brightness"
##pgrep -x redshift && pkill redshift
$XCMND $VAL
"$HOME/.config/mon-brightness.rc" is used by my redshift script, and just contains the value "0.8"
Last edited by damo (2017-02-15 18:32:34)
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# lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Device 191b (rev 06) 01:00.0 VGA compatible controller: NVIDIA Corporation Device 139b (rev a2)
Is this an Optimus machine?
Have you tried disabling the NVIDIA card from your frimware ("BIOS") options?
That Intel card seems to be a Broadwell (drivers introduced for kernel 3.19) and I presume that the NVIDIA is similarly new, support will be poor in a stock BL system.
You can try to upgrade the drivers:
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I have similar issues with my hardware, and even with Mint I couldn't get the backlight keys working, which is why I have scripted it to use xrandr.
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FORUM RULES and posting guidelines «» Help page for forum post formatting
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The Google is telling me that could be a Skylake system, but the same advice applies. My Skylake 520 laptop had no brightness control, audio, touchpad, wifi, etc., with the stock Jessie kernel, but everything is working hunky-dory with the backported kernel, drivers, and firmware. You should get a better idea of your hardware if you update your PCI ID database with
su -c 'update-pciids'
If you are running 64-bit, and want to get 32-bit Steam or Wine Windows programs working with Optimus-Bumblebee switching, you have to also install the :i386 versions of the Nvidia and Mesa packages that you have also have amd64 versions installed.
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Thanks everyone for your reply.
To Damo: I can not use xrandr
xrandr
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 0.00*
To stevep:
Ran the command but reboot and nothing has changed.
To Head_on_a_stick:
It is not an Optimus machine. I can not disable the nvidia card in the BIOS but the default kernel boot options are set to:
nomodeset i915.modeset=0 nouveau.modeset=0
also I had tried the boot option:
acpi_backlight=vendor
and nothing. I will upgrade the drives and report soon.
Many thanks.
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Update drivers according to https://forums.bunsenlabs.org/viewtopic.php?id=1185
# cat /var/log/Xorg.0.log | grep "intel"[ 6.989] (==) Matched intel as autoconfigured driver 0
[ 6.989] (II) LoadModule: "intel"
[ 6.990] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[ 6.997] (II) Module intel: vendor="X.Org Foundation"
[ 7.003] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
[ 7.003] (II) intel: Driver for Intel(R) HD Graphics
[ 7.003] (II) intel: Driver for Intel(R) Iris(TM) Graphics
[ 7.003] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics
But
xrandr
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 0.00*
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Looks like you have a kernel module for the Intel card, can we confirm the status:
lspci -knn | grep -iA2 vga
Have you tried acpi_backlight=video or acpi_backlight=native?
If they don't work, please post the output of:
find /sys/class/backlight
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It was my impression that a laptop with both integrated Intel and discrete Nvidia GPUs is the very definition of an Optimus machine. Modern Optimus systems don't have an option to disable the Nvidia card in the BIOS or UEFI settings. Chances are that you'll have to use the proprietary Nvidia driver, possibly the one in jessie-backports, to get the Bumblebee GPU switching framework working.
Google says you need the backports Nvidia driver, as you have a GTX960M.
If you install inxi, what does
inxi -G
report for your current graphics?
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I run an Optimus system, I dont have this issue. (wich actually doesnt mean much)
However, on another distro I had to install xfce4-power-manager.
(Check if you have it, or reinstall it.)
and yes,
xbacklight -set 50
doesnt need xfce4-power-manager to work.
Last edited by imp2021 (2017-02-17 06:18:05)
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Hi,
To imp2021: I tried it and however xfce4-power-manager does not display the backlight option at all.
To stevep: To be honest, I do not know if the definition of an Optimus system is having double graphic card (nvidia and intel), but what I know (now, after checking nvidia website) is that, you are right, GTX960M supports Optimus technology. Now, please correct me if I am wrong, since my installation of BunsenLabs boot options are set to
nomodeset i915.modeset=0 nouveau.modeset=0
it is not loading any driver for the use of the nvidia card, therefore nvida card is not in use at all, correct?
Google says you need the backports Nvidia driver, as you have a GTX960M.
At the moment I do not want to mess trying to enable the nvidia card because last time I did, it was a completed mess, so I had to rollback to intel.
Here is the output of inxi -G
# inxi -G
Graphics: Card-1: Intel HD Graphics 530
Card-2: NVIDIA GM107M [GeForce GTX 960M]
Display Server: X.org 1.16.4 drivers: fbdev,vesa,intel tty size: 137x39 Advanced Data: N/A for root
To Head_on_a_Stick: output
# lspci -knn | grep -iA2 vga
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 530 [8086:191b] (rev 06)
Subsystem: CLEVO/KAPOK Computer Device [1558:0152]
00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller [8086:a12f] (rev 31)
--
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM107M [GeForce GTX 960M] [10de:139b] (rev a2)
Subsystem: CLEVO/KAPOK Computer Device [1558:0152]
03:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)
The directory
/sys/class/backlight
does exist but it is empty
# ls -l /sys/class/backlight
total 0
Have you tried acpi_backlight=video or acpi_backlight=native?
Yes, I tried: acpi_backlight=video, acpi_backlight=vendor, acpi_backlight=native and acpi_backlight=none
and xrandr gives the same output in every case
# xrandr
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 0.00*
and in every case the directory /sys/class/backlight is empty
Thanks
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OK, but can you run the inxi commands as a regular user instead with sudo or as root?umbl
With an hybrid laptop like yours, the Intel GPU is going to handle all the graphics chores that the system can see regardless if Bumblebee switching is there or not--when you do set up switching with Bumblebee, that just means that the discrete GPU will do the 3D rendering when requested and hand it to the Intel device to present to the system. That means the user doesn't set up any special xorg.conf files for Nvidia, or maybe even none at all, since an Intel GPU usually doesn't need one. But first thing is to make sure that the Intel GPU is working correctly, then Bumblebee can be installed.
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xfce4-power-manager does not display the backlight option at all.
If you are using the backported version of xfce4-power-manager then right-clicking on the battery icon should show a backlight slider.
since my installation of BunsenLabs boot options are set to
nomodeset i915.modeset=0 nouveau.modeset=0
it is not loading any driver for the use of the nvidia card, therefore nvida card is not in use at all, correct?
Those options disable kernel mode setting for *both* of your cards but still allow userspace control.
Have you tried booting without those options?
# lspci -knn | grep -iA2 vga 00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 530 [8086:191b] (rev 06) Subsystem: CLEVO/KAPOK Computer Device [1558:0152] 00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller [8086:a12f] (rev 31) -- 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM107M [GeForce GTX 960M] [10de:139b] (rev a2) Subsystem: CLEVO/KAPOK Computer Device [1558:0152] 03:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)
Hmmm, still no drivers loaded
Can we confirm the packages please:
apt-cache policy linux-image-amd64 xserver-xorg-video-intel libegl1-mesa libgl1-mesa-glx libgl1-mesa-dri
Also, I'm not sure if this is an Optimus device because both cards are described as "VGA" outputs — a discrete GPU card should be listed as a "3D" output, I think.
Perhaps PRIME is the methodology that is needed here:
https://wiki.archlinux.org/index.php/PRIME
Unfortunately, I know absolutely nothing about this.
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nomodeset i915.modeset=0 nouveau.modeset=0
I tried without the last 2 options and nothing changes, removing all the 3 options the systen just hang.
Output for
# apt-cache policy linux-image-amd64 xserver-xorg-video-intel libegl1-mesa libgl1-mesa-glx libgl1-mesa-dri
linux-image-amd64:
Installed: 4.9+78~bpo8+1
Candidate: 4.9+78~bpo8+1
Version table:
*** 4.9+78~bpo8+1 0
100 http://httpredir.debian.org/debian/ jessie-backports/main amd64 Packages
100 /var/lib/dpkg/status
3.16+63 0
500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages
xserver-xorg-video-intel:
Installed: 2:2.99.917+git20161206-1~bpo8+1
Candidate: 2:2.99.917+git20161206-1~bpo8+1
Version table:
*** 2:2.99.917+git20161206-1~bpo8+1 0
100 http://httpredir.debian.org/debian/ jessie-backports/main amd64 Packages
100 /var/lib/dpkg/status
2:2.21.15-2+b2 0
500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages
libegl1-mesa:
Installed: 13.0.4-1~bpo8+1
Candidate: 13.0.4-1~bpo8+1
Version table:
*** 13.0.4-1~bpo8+1 0
100 http://httpredir.debian.org/debian/ jessie-backports/main amd64 Packages
100 /var/lib/dpkg/status
10.3.2-1+deb8u1 0
500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages
libgl1-mesa-glx:
Installed: 13.0.4-1~bpo8+1
Candidate: 13.0.4-1~bpo8+1
Version table:
*** 13.0.4-1~bpo8+1 0
100 http://httpredir.debian.org/debian/ jessie-backports/main amd64 Packages
100 /var/lib/dpkg/status
10.3.2-1+deb8u1 0
500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages
libgl1-mesa-dri:
Installed: 13.0.4-1~bpo8+1
Candidate: 13.0.4-1~bpo8+1
Version table:
*** 13.0.4-1~bpo8+1 0
100 http://httpredir.debian.org/debian/ jessie-backports/main amd64 Packages
100 /var/lib/dpkg/status
10.3.2-1+deb8u1 0
500 http://httpredir.debian.org/debian/ jessie/main amd64 Packages
I tried to follow https://wiki.archlinux.org/index.php/PRIME but I did not go too far because:
# glxinfo | grep "OpenGL renderer"
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.8, 256 bits)
which apparently should be Intel by default, but it isn't.
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Well, I have absolutely no idea why those drivers aren't loading for you.
Everything seems to be set up and you have all the packages.
Are there are any blacklists for the Intel drivers?
grep -R blacklist /etc/modprobe.d
cat /proc/cmdline
We could also try stevep's suggestion:
Google says you need the backports Nvidia driver, as you have a GTX960M.
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Hi,
I followed stevep's suggestion and installed the backports Nvidia driver https://wiki.debian.org/NvidiaGraphicsD … ckports.29 [Version 367.44 (via jessie-backports)] and then I installed bumblebee and primus following https://wiki.debian.org/Bumblebee/ManualInstall I did
# apt-get install bumblebee primus
(no backports)
checking the service I get this
# service bumblebeed status
● bumblebeed.service - Bumblebee C Daemon
Loaded: loaded (/lib/systemd/system/bumblebeed.service; enabled)
Active: active (running) since Tue 2017-02-21 14:45:38 GMT; 37s ago
Main PID: 4759 (bumblebeed)
CGroup: /system.slice/bumblebeed.service
└─4759 /usr/sbin/bumblebeed
Feb 21 14:45:38 host systemd[1]: Started Bumblebee C Daemon.
Feb 21 14:45:38 host bumblebeed[4759]: [ 209.118845] [INFO]/usr/sbin/bumblebeed 3.2.1 started
Feb 21 14:45:38 host bumblebeed[4759]: rmmod: ERROR: Module nvidia is in use by: nvidia_modeset
Feb 21 14:45:41 host bumblebeed[4759]: [ 212.128843] [ERROR]Unloading nvidia driver timed out.
Now removing bumblebee and primus and install them using the backports
apt-get install -t jessie-backports bumblebee primus
and the service status is
# service bumblebeed status
● bumblebeed.service - Bumblebee C Daemon
Loaded: loaded (/lib/systemd/system/bumblebeed.service; enabled)
Active: active (running) since Tue 2017-02-21 13:49:05 GMT; 21s ago
Main PID: 5026 (bumblebeed)
CGroup: /system.slice/bumblebeed.service
└─5026 /usr/sbin/bumblebeed
Feb 21 13:49:05 host systemd[1]: Started Bumblebee C Daemon.
Feb 21 13:49:05 bumblebeed[5026]: [ 995.351578] [INFO]/usr/sbin/bumblebeed 3.2.1 started
but rebooting the system, it just hangs at boot time. So I removed bumblebee backported version. I can report that now I can adjust the backlight of the screen.
Here some command outputs
cat /var/log/Xorg.0.log | grep "nvidia"
[ 5.378] (II) Applying OutputClass "nvidia" to /dev/dri/card0
[ 5.378] loading driver: nvidia
[ 5.378] (==) Matched nvidia as autoconfigured driver 1
[ 5.382] (II) LoadModule: "nvidia"
[ 5.383] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[ 5.390] (II) Module nvidia: vendor="NVIDIA Corporation"
# glxinfo | grep OpenGL
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Error: couldn't find RGB GLX visual or fbconfig
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
# xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 350mm x 190mm
1920x1080 60.02*+ 59.93
1680x1050 59.88
1600x1024 60.17
1400x1050 59.98
1600x900 60.00
1280x1024 60.02
1440x900 59.89
1280x960 60.00
1368x768 60.00
1360x768 59.80 59.96
1152x864 60.00
1280x720 60.00
1024x768 60.00
1024x576 60.00
960x540 60.00
800x600 60.32 56.25
864x486 60.00
640x480 59.94
720x405 60.00
640x360 60.00
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
# xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x48 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 4 outputs: 5 associated providers: 0 name:Intel
Blacklist
grep -R blacklist /etc/modprobe.d
/etc/modprobe.d/amd64-microcode-blacklist.conf:blacklist microcode
/etc/modprobe.d/fbdev-blacklist.conf:# This file blacklists most old-style PCI framebuffer drivers.
/etc/modprobe.d/fbdev-blacklist.conf:blacklist arkfb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist aty128fb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist atyfb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist radeonfb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist cirrusfb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist cyber2000fb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist kyrofb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist matroxfb_base
/etc/modprobe.d/fbdev-blacklist.conf:blacklist mb862xxfb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist neofb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist pm2fb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist pm3fb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist s3fb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist savagefb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist sisfb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist tdfxfb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist tridentfb
/etc/modprobe.d/fbdev-blacklist.conf:blacklist vt8623fb
/etc/modprobe.d/bumblebee.conf:blacklist nouveau
/etc/modprobe.d/bumblebee.conf:blacklist nvidia
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-current
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-current-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-304
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-304-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-304
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-310
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-310-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-310
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-313
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-313-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-313
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-319
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-319-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-319
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-325
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-325-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-325
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-331
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-331-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-331
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-334
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-334-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-334
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-337
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-337-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-337
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-340
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-340-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-340
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-343
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-343-updates
/etc/modprobe.d/bumblebee.conf:blacklist nvidia-experimental-343
/etc/modprobe.d/nvidia-blacklists-nouveau.conf:blacklist nouveau
/etc/modprobe.d/blacklist.conf:blacklist btusb
/etc/modprobe.d/intel-microcode-blacklist.conf:blacklist microcode
cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-4.9.0-0.bpo.1-amd64 root=UUID=5bf1544c-71db-42f7-99f7-84e0b1d00faa ro quiet
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but rebooting the system, it just hangs at boot time.
Did you try re-adding the modeset parameters to the bootloader configuration?
What you describe as "hanging" may just be the screen blanking — disabling kernel mode setting is the usual fix for this.
So I removed bumblebee backported version. I can report that now I can adjust the backlight of the screen.
So is this problem now [SOLVED]?
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So is this problem now [SOLVED]?
Yes, able to adjust backlight now.
I ended removing nvidia driver and bumblebee and set boot options to nouveau.modeset=0 and backlight is working and graphics are render via Intel GPU rather than via CPU. (I updated intel drivers according to https://forums.bunsenlabs.org/viewtopic.php?id=1185)
xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x48 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 4 outputs: 5 associated providers: 0 name:Intel
# glxinfo | grep "OpenGL renderer"
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 530 (Skylake GT2)
# glxinfo | grep rendering
direct rendering: Yes
However I start to notice some weird behavior: if I tried to delete some characters if this very line, as the cursor moves backward, it prints itself behind or just back or the whole line gets mess up but after switching to a different window and going back to it everything is alright or even if I tried to take a screenshot image get back to normal. Maybe it has to do with frame per seconds that the intel card can deliver (?)
#glxgears -info
reports 60FPS that is absolutely rubbish in comparison with the 3000FPS deliver when the CPU does the render.
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So is this problem now [SOLVED]?
Yes, able to adjust backlight now.
....
For future reference you can edit the title of your first post to add [SOLVED]
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^^ Please open a new issue about frame rate if you'd like (we're trying, mostly, to keep threads on one topic to make searching for an issue easier). Thanks!
I don't care what you do at home. Would you care to explain?
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