Support Board
Date/Time: Sun, 24 Nov 2024 13:41:20 +0000
Screen Flickering issue with NVIDIA GPU
View Count: 486
| [2024-03-28 18:10:40] |
| masedi - Posts: 40 |
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I am facing an issue similar to what is described in this old thread: Screen flickering (disappearing/reappearing) My Old setup had a laptop with a 1080p screen and a 4K monitor- both at 100% scaling. I was using OpenGL + integrated intel GPU with acceptable graphics performance. I got a new laptop with 4k screen @200% scaling connected to the same 4K monitor @100% scaling. Laptop has an nvidia GPU RTX A2000 I copied the sierra chart folder from the old laptop to the new laptop. When starting sierra for the first time on the new laptop the fonts and graphics were all messed up (blurry / small size), so I used right click on sierra.exe "compatibility" -> "high DPI Settings" -> " High DPI scaling override -> system" Graphics and fonts look great with this setting. ========================== The issue: I have multiple charts open some in the foreground and some in the background. Intermittently for a fraction of a second the chart in the background shows up on the chart in the foreground and disappears again to the background. I have OpenGL enabled and mapped the graphics settings in windows to use the using dedicated GPU After extensive troubleshooting I found the following: - OpenGL enabled: issue happens when using nvidia GPU, it does not happen when using integrated intel GPU - OpenGL disabled: issue does not happen, but GPUs are not utilized and causing high CPU utilization (from handling the graphics) specially when moving/scrolling graphs I read in some other posts that AMD graphics has flickering issues on the DOM and hence I opted for the nvidia GPU recommended by sierra chart support. I want to make use of OpenGL and utilize the dedicated GPU to offload the main CPU and for better graphics experience. ========================== Questions: - Are there any known issues with nvidia GPUs? Or is there a special setting to avoid this issue? - Would it make sense to install a fresh sierra chart on the new laptop to pick up the new laptop environment rather than using the folder copied over from the old laptop? If yes, how will I copy over all the global settings without copying over the font sizes which will appear too small? Any suggestions are appreciated. Date Time Of Last Edit: 2024-03-28 18:13:34
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| [2024-05-28 19:15:12] |
| masedi - Posts: 40 |
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Attn: Engineering Team. I have commented on an old thread: Screen flickering (disappearing/reappearing) and was asked to open a new thread with full description. This is the thread I had posted 2 months ago with no replies describing the same issue in detail. Please check and let me know if you have any thought on the root cause of this issue. |
| [2024-05-28 19:23:20] |
| VLiviu - Posts: 223 |
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Happens for me too. Same situation, new laptop, 4K monitor, Nvidia latest card etc |
| [2024-05-28 20:26:29] |
| Sierra_Chart Engineering - Posts: 17156 |
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We would not recommend setting any special DPI settings for Sierra Chart in the operating system compatibility settings: I copied the sierra chart folder from the old laptop to the new laptop. When starting sierra for the first time on the new laptop the fonts and graphics were all messed up (blurry / small size), so I used right click on sierra.exe "compatibility" -> "high DPI Settings" -> " High DPI scaling override -> system"
Instead just simply increase the font sizes as required: Graphics Settings: Fonts and Text Appearance And also simply increase the Line Widths of studies and chart bars as required. We definitely would not do any special scaling for Sierra Chart. No just do what we say above: - Would it make sense to install a fresh sierra chart on the new laptop to pick up the new laptop environment rather than using the folder copied over from the old laptop?
We are highly suspicious, of letting the operating system perform rescaling. We would never let the operating system do this. This is the only issue you see?: I have multiple charts open some in the foreground and some in the background. Intermittently for a fraction of a second the chart in the background shows up on the chart in the foreground and disappears again to the background. For now avoid using OpenGL, and instead just use multiple instances of Sierra Chart to distribute graphics load : Using DTC Server for Data and Trading in Another Sierra Chart Instance Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2024-05-28 20:29:35
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