Hi,
When I'm viewing charts on Tradingview in Firefox, and some other sites, the charts flicker all over the place. It's quite chaotic, going between the current chart and snapshots from older charts. Sections of the screen go blank and then come back, and move around. It seems like my video drivers are up to date. I don't know how to fix this ..
Welcome to the Forum!
What Graphics Card do you use?
Do Your System run in Wayland or Xorg?
Is the Firefox Version you use the Flatpak or the .deb Version?
Thank you very much!
My graphics card is a GEFORCE DUAL-RTX2060-O5G-EVO.
Apologies, but I don't know what Wayland or Xorg is. I've just installed Zorin a couple of weeks ago, and I'm new to all this.
I'm just using the version of Firefox that came standard with the ZorinOS 17.1 install. I've run apt update so I think it's all up to date.
Okay, a Nvidia Card. then we should try to change to Xorg.
To explain it shortly Xorg ans Wayland are Window Managers. There are making that you can see Your UI like it is. That is a VERY short Explanation. The Theme itself is much more bigger. Wayland is in direct Comparison a newer Standard than Xorg. But Xorg is for Nvidia Cards more reliable. So, it is worth a Test.
To change the Mode go to the Login Screen and click on your Profile so that the Password Field appears. The Field must apppeared; that is important. Then You should see in the bottom right Corner a Gear Icon. Click on it. There You have 2 Option:
Which Option is active you can see at the Dot Marker. So, click on the Xorg Option and log in and test if it runs.
This is unfortunately a bit complicated. Could You please take a Look at Your ISO? Look at the File Name and there at the Ende if there is a ''-r2''. Alternatively open the Terminal and type there flatpak list and look if there is Firefox listed.
Thank you,
Re Xorg, I don't seem to have the option. I only have Zorin Desktop and Zorin on Wayland.
The ISO file I installed Zorin 17.1 from does have "-r2" on the end - Zorin-OS-17.1-Core-64-bit-r2.iso
Running flatpak list in Terminal does not show any Firefox.
It is okay, In your Case the Zorin Desktop Option is the Xorg Option. Maybe it is switched in Your Case because You have an Nvidia Card.
Okay, and the Firefox Thing is good, too.
Do you use Fractional Scaling in your Display Settings? That could be a Point. Another Thing You could try is to disable the Hardware Acceleration in Firefox.
I do have Fractional Scaling in the Display Settings. What does it do?
Do you have it active? Normal Scaling Steps are 100%, 200%, 300% ... etc. Fractional Scaling offers interim Steps. You can set up 150% for Example. But the Function is a bit unstable which can make Issues.
It was off. I turned it on, and things seem to have stabilised, but I haven't changed the Scale. I left it on 100%. I'm not sure if the flickering will continue. Sometimes it seems stable for a while and then it starts. If it starts again, I'll try disabling Hardware Acceleration in Firefox and let you know.
Thank you very much for you help
As from 17.1r2 Firefox should be delivered as an apt, instead of Flatpak.
unfortunately, turning on Fractional Scaling didn't make any difference, and neither did disabling Hardware Acceleration in Firefox. anymore ideas?
Perhaps some extension you installed on Firefox could be causing this?
Have you tested with another browser?
What for a Nvidia Driver do You have installed?
Screenshot says "No proprietary drivers are in use" so you are using Open Source driver not NVIDIA ?
Thank you for the Picture. There stand ''Continue using a manually installed driver''
Do You have manually installed an Nvidia Driver?
i don't know. when i installed ZorinOS i selected the option that was specifically for NVIDIA. perhaps i should install a "proprietary driver"?
all i did was install Zorin OS and select the option that was specifically for NVIDIA. i cant remember exactly what it said. how do i install the proper "proprietary" drivers?
i downloaded the .run file for my card from the nvidia webside and followed some online instructions to install the drivers but all i get is errors and fails. is there a drivers manager in zorin os that i can use?
If Software & Updates > Additional drivers is not supplying the Nvidia driver you need, open terminal and run this command to remove and purge any existing drivers that may conflict:
sudo apt-get remove --purge '^nvidia-.*'
Add the Ubuntu advanced Drivers repository:
sudo add-apt-repository ppa:graphics-drivers/ppa
Update your sources, then install:
sudo apt update && sudo apt install nvidia-driver-550 nvidia-dkms-550
You can change the 550 for 555 or 545 depending on performace.
Reboot to utilize the driver.
