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2 ACER ASPIRE 7750 : one is 100% OK, the other one : WIFI+Bluetooth+Brightness are KO

asked 2018-04-12 15:37:34 -0500

geplinux gravatar image

Hello, I'm absolutely totally new to FEDORA ... I really need some help, please !

FIRST OF ALL : Thanks to FEDORA !

FEDORA 27 is working perfectly in dual boot mode with Windows on my ... Asus TransformerBook T101H ! Everything works perfectly ! ( I've just a small issue with sound ... No sound card detected by Alsa server and sound does not work until I start VLC and run an MP4 Video. Then sound works perfectly ... until I shutdown my Transformer Book. I tried to kill PulseAudio... If you have an Idea to fix that it would be greaaaat....)

NOW MY PROBLEM :

I've installed FEDORA 27 on two identical Notebooks ACER ASPIRE 7750 : FEDORA is running with GNOME desktop + DashToDock + ( IconsOnDesktop = ShowIcons for Wine ), Wine is installed and runs perfectly with <desktop icons="" enabled=""> option on my 3 PCs 2x ACER + Asus...

My Notebook ACER ASPIRE 7750 is 100% OK

WIFI, Bluetooth,... and Brightness can be changed manually,. etc... (Dual Boot with Windows, Mono, Arduino, many Python & C++ IDE, Wine, Chromium installed )

My wife's Notebook ACER ASPIRE 7750 has SOME ISSUES !

No WIFI & no Bluetooth (No card dectected), impossible to change manually the Brightness of the display but ...

1) The PowerSaving of GNOME Dim effectively automatically the display : After 5 minutes the Blank Screen option switch off correctly the display...

2) I've installed on it the GNOME extension < Dim desktop 70 > it works perfectly ! : If we click on the LampBulb Icon on the menu bar : the display effectively reduces the brightness to 30% and reverse to 100% !

MY QUESTIONS :

1) How can we make working the Brightness slider on the menu bar to act on Display brightness ?

2) How can we force the WiFi & Bluetooth to work ? ( I tried to update Boot via CLI but no effects, Ethernet is OK )

OF COURSE :

Before asking for Help : I've installed twice FEDORA, updating && upgrading it, installed RPM fusion repo, etc... Installation made with Ethernet network connected and WIFI present.

NB : My wife's Notebook ACER ASPIRE 7750 has only FEDORA 27 ( No more Windows )

Thanks very much for your help and Best regards.

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answered 2018-04-13 06:29:54 -0500

ozeszty gravatar image

updated 2018-04-16 04:46:31 -0500

Hello, welcome to Ask Fedora and Fedora Community. It's easier to deal with one problem per question, so start a new one for Asus issue.

As for those Acers, update this question with output of inxi -SMGNxxxz, rfkill list and cat /proc/cmdline.

Use e.g. meld to compare and highlight differences between outputs of above commands run on both Acers. Different BIOS version and different hardware inside those laptops could cause such distinct experience.


Different parts in laptops from one model line is standard practice, it looks like the one with issues is a newer revision and has different WiFi adapter - which needs driver not provided with Fedora. You'll have to connect it to the internet with cable, enable RPMFusion repositories and then install and enable broadcom-wl driver like that:

su
dnf install https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm https://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm -y
dnf install broadcom-wl
modprobe wl

After that Bluetooth should be working, if not, run rfkill list again, maybe it just needs to be toggled. If bluetooth is soft blocked use keyboard shortcut to unblock it or run rfkill unblock all.


Follow those steps to temporarily add acpi_backlight=vendor into kernel boot parameters. If that enabled backlight control, add this parameter permanently:

su
nano /etc/default/grub

find rhgb quiet and change it into rhgb quiet acpi_backlight=vendor, save changes (Ctrl+O), exit editor (Ctrl+X) and run:

grub2-mkconfig -o /boot/grub2/grub.cfg

or for UEFI systems (not your case, from what I see):

grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
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Did you get everything to work?

ozeszty gravatar imageozeszty ( 2018-04-20 15:13:38 -0500 )edit

Post here in a comment output of rfkill list.

ozeszty gravatar imageozeszty ( 2018-04-23 08:19:44 -0500 )edit
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answered 2018-04-15 03:57:07 -0500

geplinux gravatar image

updated 2018-04-22 15:04:39 -0500

Thanks very much for your reply,

Different BIOS version and different hardware inside those laptops could cause such distinct experience.

You found the source of the problems !

I'm very very very surprised to see the differences between the 2 ACER 7750G labtops !

Specially concerning the Disdplay & the Wireless Card which makes problems.

Is it possible to fix something ?


inxi -SMGNxxxz

ACER 7750G N01 0K : inxi -SMGNxxxz

inxi -SMGNxxxz

System:    Host: FEDORA-C7750.RedHat Kernel: 4.15.15-300.fc27.x86_64 x86_64 
           bits: 64 gcc: 7.3.1
           Desktop: Gnome 3.26.2 info: gnome-shell dm: gdm 
           Distro: Fedora release 27 (Twenty Seven)
Machine:   Device: laptop System: Acer product: Aspire 7750G v: V1.10 serial: <filter>
           Mobo: Acer model: JE70_HR serial: N/A 
           BIOS: Acer v: V1.10 date: 04/25/2011
           Chassis: type: 10 v: V1.10 serial: N/A
Graphics:  Card: Advanced Micro Devices [AMD/ATI] Whistler [Radeon HD 6630M/6650M/6750M/7670M/7690M]
           bus-ID: 01:00.0 chip-ID: 1002:6741
           Display Server: wayland (X.org 1.19.6 ) driver: radeon tty size: 167x44 Advanced Data: N/A for root
Network:   Card-1: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet
           driver: atl1c v: 1.0.1.1-NAPI port: 2000 bus-ID: 02:00.0 chip-ID: 1969:1083
           Card-2: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express)
           driver: ath9k bus-ID: 03:00.0 chip-ID: 168c:002e

ACER 7750G N02 KO : inxi -SMGNxxxz

inxi -SMGNxxxz

System:    Host: FEDORA-F7750.RedHat Kernel: 4.15.15-300.fc27.x86_64 x86_64
           bits: 64 gcc: 7.3.1
           Desktop: Gnome 3.26.2 info: gnome-shell dm: gdm
           Distro: Fedora release 27 (Twenty Seven)
Machine:   Device: laptop System: Acer product: Aspire 7750G v: V1.20 serial: <filter>
           Mobo: Acer model: JE70_HR serial: N/A
           BIOS: Acer v: V1.20 date: 03/16/2012
           Chassis: type: 10 v: V1.20 serial: N/A
Graphics:  Card-1: Intel 2nd Generation Core Integrated Graphics Controller
           bus-ID: 00:02.0 chip-ID: 8086:0116
           Card-2: Advanced Micro Devices [AMD/ATI] Thames [Radeon HD 7500M/7600M Series]
           bus-ID: 01:00.0 chip-ID: 1002:6840
           Display Server: wayland (X.org 1.19.6 ) drivers: i915,radeon
           tty size: 80x24 Advanced Data: N/A for root
Network:   Card-1: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet
           driver: atl1c v: 1.0.1.1-NAPI port: 2000
           bus-ID: 02:00.0 chip-ID: 1969:1083
           Card-2: Broadcom Limited BCM43227 802.11b/g/n
           driver: bcma-pci-bridge bus-ID: 03:00.0 chip-ID: 14e4:4358

rfkill list

ACER 7750G N01 0K : rfkill list

rfkill list

0: acer-wireless: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: acer-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
3: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

ACER 7750G N02 KO : rfkill list

rfkill list
0: acer-wireless: Wireless LAN
    Soft blocked: no
    Hard blocked: no

cat /proc/cmdline

ACER 7750G N01 0K : cat /proc/cmdline

cat /proc/cmdline

BOOT_IMAGE=/vmlinuz-4.15.15-300.fc27.x86_64 root=/dev/mapper/fedora_fedora--c7750-root ro rd.lvm.lv=fedora_fedora-c7750/root rd.lvm.lv=fedora_fedora-c7750/swap rhgb quiet LANG ...
(more)
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Comments

You're welcome. Next time use edit at the bottom of your question to edit it and add requested details there.

ozeszty gravatar imageozeszty ( 2018-04-15 07:03:19 -0500 )edit

I updated my answer with more instructions, I hope that helps.

About editing your answer, I wasn't clear enough before, what I meant was that you should have edited your question (the first message you posted) and added there output of inxi, rfkill etc. so that all the necessary information was in one place. You don't have to do that now, just remember next time.

For messages pertaining my answer, use comments section below it.

ozeszty gravatar imageozeszty ( 2018-04-16 04:58:26 -0500 )edit

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Asked: 2018-04-12 15:15:52 -0500

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Last updated: Apr 22