Frame Rate Drops when pulling charger. 18.3 X64 Cinnamon

[HellDragon]

Hello i have a wierd problem. I have an laptop that is equipped with an Nvidia GTX 850M and an Intel Core i5 with an integreated graphics chip. The Nvidia Driver works fine until i plug out the charger of my laptop then the frame rates drop from 3000 to less then 50. i tested that a few times with glxgears if i put the charger back in the frame rate stays still low. I never had expericend such an issue before and i dont know what to do. I tried using the old drivers (nvidia 340 but after a reinstalling of linux mint they dont work anymore)

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System:    Host: HomeOS Kernel: 4.13.0-32-generic x86_64 (64 bit)
           Desktop: Cinnamon 3.6.7  Distro: Linux Mint 18.3 Sylvia
Machine:   System: Micro-Star product: GE70 2PC v: REV:1.0
           Mobo: Micro-Star model: MS-1759 v: REV:0.B
           Bios: American Megatrends v: E1759IMS.62D date: 04/13/2015
CPU:       Dual core Intel Core i5-4210H (-HT-MCP-) cache: 3072 KB 
           clock speeds: max: 3500 MHz 1: 2893 MHz 2: 2893 MHz 3: 2893 MHz
           4: 2893 MHz
Graphics:  Card-1: Intel 4th Gen Core Processor Integrated Graphics Controller
           Card-2: NVIDIA GM107M [GeForce GTX 850M]
           Display Server: X.Org 1.18.4 drivers: intel (unloaded: fbdev,vesa) FAILED: nouveau
           Resolution: 1920x1080@60.01hz, 1280x720@60.00hz
           GLX Renderer: N/A GLX Version: N/A
Audio:     Card-1 Intel 8 Series/C220 Series High Definition Audio Controller
           driver: snd_hda_intel
           Card-2 Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
           driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture v: k4.13.0-32-generic
Network:   Card-1: Qualcomm Atheros Killer E220x Gigabit Ethernet Controller
           driver: alx
           IF: enp4s0 state: down mac: 44:8a:5b:ed:d9:b4
           Card-2: Intel Wireless 3160 driver: iwlwifi
           IF: wlp5s0 state: up mac: 30:3a:64:f4:72:75
Drives:    HDD Total Size: 1016.2GB (0.9% used)
           ID-1: USB /dev/sda model: Mobile_Line size: 16.0GB
           ID-2: /dev/sdb model: WDC_WD10S21X size: 1000.2GB
Partition: ID-1: / size: 100G used: 7.3G (8%) fs: btrfs dev: /dev/sdb3
           ID-2: /home size: 832G used: 857M (1%) fs: btrfs dev: /dev/sdb2
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 29.8C mobo: 27.8C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 243 Uptime: 5 min Memory: 950.6/11929.5MB
           Client: Shell (bash) inxi: 2.2.35 

[ClixTrix]

Did you install Bumblebee? That's the open source version of Optimus for Linux.

[HellDragon]

Yep and i ran into the same problem.

[ClixTrix]

Well, I see the open source nouveau driver (failed), but I don't see the nvidia proprietary driver that's required to work with Bumblebee.

Did you install the proprietary nvidia driver from Driver Manager. ( Menu - Administration - Driver Manager )

[HellDragon]

Yes I have but sometimes the Nvidia Driver refuses to start.
https://imgur.com/a/Fe5Cz

[ClixTrix]

OK, I see you did try 340. It might simply be a specific version needed to get it working with Bumblebee.

Any chance you have a BIOS setting that specifically sets use only of the nVidia discreet processor?

Edit: I was just checking the GE70 and Bumblebee. I see a lot of old problems getting the discreet GPU to work. Don't know where that currently stands.

[HellDragon]

Sadly Not. The MSI Bios is shit. You have not many settings to choose and you cant enable or disable the integrated graphics card or select the dedicate. Btw if i try to run bumblebee with the new driver i get

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 ERROR]Cannot access secondary GPU, secondary X is not active

. i tried to google it but i didnt found a solution to that either. I buyed this laptop before i came into linux else i wouldnt have buyed an laptop with an nvidia xD

[ClixTrix]

Yeah, I think that's the error I saw in a bug report at Bumblebee. I'll spend some time over coffee in the morning - looking for anyone who's got this laptop working. Sadly, that's the problem with vendors not supporting Linux. Optimus only got full Windows support from nVidia.

[HellDragon]

Well. Wierd that its working until i plug the charger. Somehow the nvidia turns off. Anyway i played a bit around with nvidia drivers and ended up in recovery mode. Tomrrow morning im gonna do an fresh install of mint and see what happens if i pick the old driver and use bumblebee then. If nothing works im gonna take the nouveau driver. Thank your for your support so far

https://youtu.be/IVpOyKCNZYw

[HellDragon]

Well I have news. The Nvidia 340 Driver Working with the kernel 4.13 I can pull the ac adapter without getting lags the frame rate stays the same. But when i upgrade the kernel to 4.15 the 340. Drivers dont work anymore. Since Linux Mint 19 will probaly take a newer kernel im afraid i cant use the nvidia 340 driver anymore then :/

[ClixTrix]

Well I have news. The Nvidia 340 Driver Working with the kernel 4.13 I can pull the ac adapter without getting lags the frame rate stays the same. But when i upgrade the kernel to 4.15 the 340. Drivers dont work anymore. Since Linux Mint 19 will probaly take a newer kernel im afraid i cant use the nvidia 340 driver anymore then :/

Well, that's progress. Yeah, I would not have advised trying the 4.15 Kernel yet.

I'm only finding old bug reports and no solid advise. I do see there were apparently multiple models of your laptop with different GPUs. The only semi-relevant post in the forum is for older Mint 17.

viewtopic.php?f=49&t=203234&p=1056350&h ... 0#p1056350

This is an interesting post on the Turkey Forum including install set. It lists the other pieces of the Bumblebee install with config advise.

https://forum.linuxmint.net.tr/index.php?topic=6258.0 (need use browser with translation to read)

[HellDragon]

Thank You for your help. I will stick to the 4.13 Kernel for now. I hope when Tara comes out the patches will be integrated into that kernel that arent in the mainline kernel yet.