Screen flickering

Screen resolution, 3D Acceleration, nVidia, ATI
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Location: Greece

Screen flickering

Post by KostasP » Mon Jun 04, 2018 5:07 am

Started a couple of days ago, most noticeable on Chrome.

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System:    Host: togo-P5Q Kernel: 4.4.0-127-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: Gigabyte product: B250M-DS3H v: Default string
           Mobo: Gigabyte model: B250M-DS3H-CF v: x.x
           Bios: American Megatrends v: F2 date: 11/24/2016
CPU:       Dual core Intel Pentium G4600 (-HT-MCP-) cache: 3072 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 14401
           clock speeds: max: 3600 MHz 1: 1212 MHz 2: 805 MHz 3: 1488 MHz
           4: 890 MHz
Graphics:  Card: NVIDIA GM206 [GeForce GTX 950] bus-ID: 01:00.0
           Display Server: X.Org 1.18.4 drivers: nvidia (unloaded: fbdev,vesa,nouveau)
           Resolution: 1920x1200@59.95hz
           GLX Renderer: GeForce GTX 950/PCIe/SSE2
           GLX Version: 4.5.0 NVIDIA 384.90 Direct Rendering: Yes
Audio:     Card-1 Intel Device a2f0 driver: snd_hda_intel bus-ID: 00:1f.3
           Card-2 NVIDIA Device 0fba driver: snd_hda_intel bus-ID: 01:00.1
           Sound: Advanced Linux Sound Architecture v: k4.4.0-127-generic
Network:   Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8168 v: 8.041.00-NAPI port: d000 bus-ID: 03:00.0
           IF: eth1 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives:    HDD Total Size: 1140.2GB (19.0% used)
           ID-1: /dev/sda model: WDC_WD6400AAKS size: 640.1GB
           ID-2: /dev/sdb model: TOSHIBA_DT01ACA0 size: 500.1GB
Partition: ID-1: / size: 296G used: 197G (70%) fs: ext4 dev: /dev/sdb1
           ID-2: swap-1 size: 6.44GB used: 0.00GB (0%) fs: swap dev: /dev/sdb5
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 29.8C mobo: 27.8C gpu: 0.0:42C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 205 Uptime: 2:24 Memory: 1809.3/7942.6MB
           Init: systemd runlevel: 5 Gcc sys: 5.4.0
           Client: Shell (bash 4.3.481) inxi: 2.2.35 

Code: Select all

Screen 0: minimum 8 x 8, current 1920 x 1200, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm
   1920x1200     59.95*+
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   640x480       75.00    72.81    59.94  
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)

Hoser Rob
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Re: Screen flickering

Post by Hoser Rob » Mon Jun 04, 2018 8:15 am

You seem to have installed an Nvidia closed driver. Did you get that from the Mint Driver Manager? That's the most reliable way generally.

I see you're running a 4.4 kernel. The version installed in 18.3 is a 4.10 kernel. I suspect that you did a web upgrade to 18.3, which doesn't install a newer kernel by default. That's for good reason because a newer kernel may fail. But the older ones may not work properly either. There's no simple or hard and fast rule for which kernel is the right one, so I'd suggest updating the kernel for meltdown as instructed in the 18.3 section of the 1st post here:


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Location: Greece

Re: Screen flickering

Post by KostasP » Mon Jun 04, 2018 10:54 am

nvidia-384 is the recommended driver from the Driver Manager.

4.4 works best for me as I have tried 4.10 and other series and they have failed.

Could it be my 10-year old monitor slowly dying?

It is only/mostly happening when I am using the monitor after a hiatus, for example in the morning after we both rest at night. :)

Fortunately it only lasts a few minutes and it's only been a few days it is happening, but the concern is real.

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