Things worked well before I tried to upgrade to Tara 19. Then I had problems with bluetooth and audio. Downgrading to a 18.3 snapshot didn't fix the problem. For a few days I did many manipulations around bluez, pulseaudio and alsa during a few days. Things have more or less been fixed for that subject.
But.... At some time, the management of GPU's cards became impossible. (My laptop is equiped with 2 GPU's: one is the intel chipset, the other a Nvidia 384 card.)
On the linuxmint dashboard the green Nvidia applet disappeared, replaced by a red one with an X in the center, telling "active graphic card: unknown".
Following is a inxi listing
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System: Host: gerard-UX430UNR Kernel: 4.10.0-38-generic x86_64 (64 bit gcc: 5.4.0) Desktop: Cinnamon 3.6.7 (Gtk 3.18.9-1ubuntu3.3) Distro: Linux Mint 18.3 Sylvia Machine: System: ASUSTeK (portable) product: UX430UNR v: 1.0 Mobo: ASUSTeK model: UX430UNR v: 1.0 Bios: American Megatrends v: UX430UNR.304 date: 03/09/2018 CPU: Quad core Intel Core i7-8550U (-HT-MCP-) cache: 8192 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 15936 clock speeds: max: 4000 MHz 1: 719 MHz 2: 785 MHz 3: 777 MHz 4: 787 MHz 5: 699 MHz 6: 771 MHz 7: 784 MHz 8: 781 MHz Graphics: Card-1: Intel Device 5917 bus-ID: 00:02.0 Card-2: NVIDIA Device 1d10 bus-ID: 01:00.0 Display Server: X.Org 1.18.4 drivers: intel (unloaded: fbdev,vesa) Resolution: email@example.com GLX Renderer: Mesa DRI Intel Kabylake GT1.5 GLX Version: 3.0 Mesa 17.2.8 Direct Rendering: Yes Audio: Card Intel Device 9d71 driver: snd_hda_intel bus-ID: 00:1f.3 Sound: Advanced Linux Sound Architecture v: k4.10.0-38-generic Network: Card: Intel Device 24fd driver: iwlwifi bus-ID: 02:00.0 IF: wlp2s0 state: up speed: N/A duplex: N/A mac: <filter> Drives: HDD Total Size: 2605.1GB (56.6% used) ID-1: /dev/sda model: SanDisk_SD9SN8W5 size: 512.1GB ID-2: USB /dev/sdb model: Elements_25A2 size: 1000.2GB ID-3: USB /dev/sdc model: My_Passport_0830 size: 1000.2GB ID-4: USB /dev/sdf model: Ultra size: 31.1GB ID-5: USB /dev/sde model: Ultra size: 61.5GB Optical: No optical drives detected. Partition: ID-1: / size: 234G used: 58G (26%) fs: ext4 dev: /dev/sda5 RAID: No RAID devices: /proc/mdstat, md_mod kernel module present Sensors: System Temperatures: cpu: 42.5C mobo: N/A Fan Speeds (in rpm): cpu: N/A Info: Processes: 266 Uptime: 47 min Memory: 1446.1/15905.7MB Init: systemd runlevel: 5 Gcc sys: 5.4.0 Client: Shell (bash 4.3.481) inxi: 2.2.35
When I choose the Nvidia GPU, I'm told to close and reopen a session (as it always did...) but after I'v done so, the applet is still red in the dashboard ant the "Nvidia server settings" tool still show the intel chipset as the active GPU...
Following advices from some posts I read on this forum, I tried apt-get purge bumblebee, bbswitch and Nvidia; reinstalled Nvidia 384 driver. I even upgraded kernel from 4.10.0-38 to 4.13.0-45 (not the last but the one proposed by the LinuxMint update tool. None on this made things better... (so, for the kernel I came back to 4.10.0-38)
Has somebody any idea which could help me to fix that?