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faq_knald [2014/12/12 21:39]
adavies
faq_knald [2017/05/23 03:49] (current)
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 ===== Troubleshooting ===== ===== Troubleshooting =====
 +
 +----
  
 ==== Knald isn’t working correctly. What can I do to fix the issues I am having? ==== ==== Knald isn’t working correctly. What can I do to fix the issues I am having? ====
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 === Driver Issues === === Driver Issues ===
-Some NVIDIA drivers have been reported to cause problems with OpenCL. Please do not use the following drivers with Knald+Some NVIDIA drivers have been reported to cause problems with OpenCL/OpenGL. Please do not use the following drivers with our software as they are unsupported by us. 
 + 
 +=== Driver Issues === 
 +Some NVIDIA drivers have been reported to cause problems with OpenCL/​OpenGL. Please do not use the following drivers with our software as they are unsupported by us. 
 + 
 +== Knald Unsupported Drivers == 
   * 344.11   * 344.11
   * 344.48   * 344.48
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   * 344.65   * 344.65
   * 344.75   * 344.75
 +
 +== Lys Unsupported Drivers ==
 +
 +  * 364.51
 +  * 364.72
 +  * 365.10
 +  * 365.19
 +  * 368.22
 +
 +=== Installing new drivers ===
 +
 +On some occasions errors within Knald are due to cached shaders that the driver hasn't compiled correctly or are corrupted in some way. Whenever you install a new driver we always recommend that you perform a clean installation and delete any cached shaders if they are present on your system. ​
 +
 +Performing a clean installation of your drivers and deleting shader cache is simple and you can learn how to do it on the [[clean_driver_installation|Clean Driver Installation]] page
  
 If you are still having issues, please contact us! You can reach us via e-mail at: support@knaldtech.com If you are still having issues, please contact us! You can reach us via e-mail at: support@knaldtech.com
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   * The amount of VRAM that your GPU has. The size of the image which Knald can process successfully is limited to the amount of VRAM that it takes to process, so using a very large image (4096² and above) may result in issues. Most modern graphics cards have at least 512MB of VRAM and therefore should be able to process a 2048² texture with ease. If you have more than 1GB of VRAM, you should be able to process a 4096² texture.   * The amount of VRAM that your GPU has. The size of the image which Knald can process successfully is limited to the amount of VRAM that it takes to process, so using a very large image (4096² and above) may result in issues. Most modern graphics cards have at least 512MB of VRAM and therefore should be able to process a 2048² texture with ease. If you have more than 1GB of VRAM, you should be able to process a 4096² texture.
 +
 +Below you will find a rough guide of how much contiguous VRAM is required on a single GPU in order to process the various texture sizes listed((As SLI/​Crossfire and Dual GPUs on a single card do not have contiguous VRAM blocks you will only be able to access half of the advertised amount on such systems.))
 +
 +  * 512² = 90mb
 +  * 1024² = 140mb
 +  * 2048² = 330mb
 +  * 4096² = 1.2GB
 +  * 8192² = 3.8GB
 +
   * Running multiple instances of Knald. Due to the amount of GPU VRAM required to process images within Knald, it is currently not recommended to run more than one instance of the program as VRAM may become exhausted. Rebooting your PC may free up stuck resources and can release VRAM which was being used by other applications and/or contended erroneously due to driver and/or application bugs.   * Running multiple instances of Knald. Due to the amount of GPU VRAM required to process images within Knald, it is currently not recommended to run more than one instance of the program as VRAM may become exhausted. Rebooting your PC may free up stuck resources and can release VRAM which was being used by other applications and/or contended erroneously due to driver and/or application bugs.
  
faq_knald.1418420381.txt.gz · Last modified: 2017/05/23 03:49 (external edit)