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fast scrolling and playing videos problem - screen problem

Started by Boki007, February 13, 2021, 11:33:01 AM

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Hello all,

First i have to say sparky is looking good on my system, working really great. Thanks to developers, super good job. Simple, nice and easy.
The problem:
When i do fast scrolling in web browser or watching movies with fast scenes moving across my screen, i notice a diagonal line across the screen.
It is not an actual line, it looks like the screen is divided in 2 sections and they get updated slightly different with a small time delay. I can't notice it in normal use. Only when doing fast scrolling or watching a movie with quick changes of the scene. i suspect it could be related to my video card?
VLC is not working on my system (i tried to fix it, but didn't succeed), so i installed MPV and it works nice. There is the line present in movies. I tought it was the player, but then saw the same problem on youtube and later in my browser scrolling up and down quickly.

Is there anything i can do to improve it?

Thank you for your help. Boki


As always posting output of inxi  helps.   You neglect to mention your DE or version of Sparky.   

"inxi -FrG"          ##  would show us that in a machine outputted version         

As always, using the # button to mark up as code earns brownie points. 
Search forum for "More info easier via inxi"    If requested -  no inxi, no help for you by  me.


Thank you for your help. Here is the data.
System:    Host: Zotac Kernel: 4.19.0-14-amd64 x86_64 bits: 64 Desktop: LXQt 0.14.1 Distro: SparkyLinux 5.14 (Nibiru)
Machine:   Type: Desktop Mobo: ZOTAC model: ION serial: <root required> BIOS: American Megatrends v: 080015 date: 10/18/2010
CPU:       Topology: Dual Core model: Intel U2300 bits: 64 type: MCP L2 cache: 1024 KiB
           Speed: 1200 MHz min/max: N/A Core speeds (MHz): 1: 1200 2: 1200
Graphics:  Device-1: NVIDIA C79 [ION] driver: nouveau v: kernel
           Display: x11 server: X.Org 1.20.4 driver: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz
           OpenGL: renderer: NVAC v: 3.3 Mesa 18.3.6
Audio:     Device-1: NVIDIA MCP79 High Definition Audio driver: snd_hda_intel
           Device-2: Logitech Webcam C170 type: USB driver: snd-usb-audio,uvcvideo
           Sound Server: ALSA v: k4.19.0-14-amd64
Network:   Device-1: NVIDIA MCP79 Ethernet driver: forcedeth
           IF: eth0 state: down mac: 00:01:2e:2b:bb:88
           Device-2: Ralink RT2790 Wireless 802.11n 1T/2R PCIe driver: rt2800pci
           IF: wlan0 state: up mac: 74:f0:6d:70:3c:f1
Drives:    Local Storage: total: 2.04 TiB used: 1.76 TiB (86.3%)
           ID-1: /dev/sda vendor: Crucial model: CT240BX500SSD1 size: 223.57 GiB
           ID-2: /dev/sdb type: USB vendor: Western Digital model: WD10JMVW-11AJGS3 size: 931.48 GiB
           ID-3: /dev/sdc type: USB vendor: Seagate model: ST1000LM024 HN-M101MBB size: 931.51 GiB
Partition: ID-1: / size: 219.06 GiB used: 6.85 GiB (3.1%) fs: ext4 dev: /dev/sda1
Sensors:   System Temperatures: cpu: 59.0 C mobo: N/A gpu: nouveau temp: 54 C
           Fan Speeds (RPM): N/A
Repos:     Active apt repos in: /etc/apt/sources.list
           1: deb buster main contrib non-free
           2: deb-src buster main contrib non-free
           3: deb buster/updates main contrib non-free
           4: deb-src buster/updates main contrib non-free
           5: deb buster-updates main contrib non-free
           6: deb-src buster-updates main contrib non-free
           7: deb buster main non-free
           No active apt repos in: /etc/apt/sources.list.d/dropbox.list
           No active apt repos in: /etc/apt/sources.list.d/liquorix.list
           Active apt repos in: /etc/apt/sources.list.d/sparky.list
           1: deb core main
           2: deb-src core main
           3: deb nibiru main
           4: deb-src nibiru main
           Active apt repos in: /etc/apt/sources.list.d/teams.list
           1: deb [arch=amd64] stable main
Info:      Processes: 152 Uptime: 14m Memory: 7.55 GiB used: 863.8 MiB (11.2%) Shell: bash inxi: 3.0.32


OK. So i tried antiX and manjaro live distros. In both the scrolling and video plays smooth. 


I saw the nvidia and since I have not used nvidia in about a decade I left for others.   Quick peek today, it is older nvidia so nouveau would probably be the way to go.  Glad it worked elsewhere.   
Search forum for "More info easier via inxi"    If requested -  no inxi, no help for you by  me.


Hello guys. I think i found an answer how to improve performance and i think it is fair to share with everyone.
So sparky still looks wonderful and now even performs really good.
It all started as i have replaced the hdd with ssd, and i installed sparky as it looks the best and is fast. But the video wasn't the best. So i was tweaking and tweaking around the bios and rememberd, when i installed ssd i pressed load the best defaults button.
So i checked the cpu settings and noticed it was set on low voltage, since it is CULV cpu. I had nothing to loose so i bumped the voltage up and voila. The videos play much better. I can still see that parts of the screen are updated a little differently, but in very rare occasions. Maybe videos showing explosions. Mostly it is ok, still i wish it could be as good as other distros. I checked also mx linux and the videos play a little better. But now it is close. Have to say that sparky is awesome... looking super good and fast!!!!
Thanks guys.

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