desmondam 1 Posted October 10, 2020 Share Posted October 10, 2020 I installed Catalina 15.2 on my dell Inspiron 3593 laptop >Intel Core i3 1005G1 @1.2Ghz ( Ice Lake ) >4 Gb ram >Intel UHD graphics for 10th gen proccessors ( G1) The system boots into mac os but there is no graphics acceleration. Please help. Link to post Share on other sites
desmondam 1 Posted October 10, 2020 Author Share Posted October 10, 2020 7 minutes ago, prabhat04 said: Can you please tell which image you used for macOS I went to install niresh Catalina and it did not boot and I have same  spec of i3 and 8 gb ram can you share your efi Sure. My EFI is little larger so i attached the link here because there is size limit for attching files.  https://drive.google.com/file/d/1jvnUnarrz6buX1ftp-S8yxcOmQF0Oaml/view?usp=sharing Link to post Share on other sites
desmondam 1 Posted October 10, 2020 Author Share Posted October 10, 2020 5 hours ago, prabhat04 said: i got an error ocsb no suitable signature security violation ocb load image image failed That is because Since 0.6.1 is AppleSecureBoot implemented. Add in your config.plist into Misc-Security string key named SecureBootModel with value Disabled. or use GibMacOS method which is pure vanilla  Link to post Share on other sites
Administrators MaLd0n 1,001,149 Posted October 10, 2020 Administrators Share Posted October 10, 2020 config.plist.zip Link to post Share on other sites
desmondam 1 Posted October 11, 2020 Author Share Posted October 11, 2020 (edited) 4 hours ago, prabhat04 said: now i have this error IMG_0120.zip 1.85 MB · 2 downloads now i have this error Niresh Catalina is old for your system so you need to use Gib Mac Os method and make a installation drive using latest catalina version.I reccomond catalina 15.6 or later Edited October 11, 2020 by desmondam Link to post Share on other sites
desmondam 1 Posted October 11, 2020 Author Share Posted October 11, 2020 I think yow have downloaded image that is for original mac or you did not unzip the compressed file containing the image or try using transmac. If it also doesnt work let me know. I will provide the link from where i downloaded. Link to post Share on other sites
desmondam 1 Posted October 12, 2020 Author Share Posted October 12, 2020 10 hours ago, prabhat04 said: Please give me the link as I have already messed up with niresh Catalina and Oralia and it took about 2 hrs to download the image. I cannot share the link here give me your telegram or instagram  account link. Link to post Share on other sites
bss111 6 Posted October 23, 2020 Share Posted October 23, 2020 Read this all your solution here > Â Link to post Share on other sites
bss111 6 Posted October 23, 2020 Share Posted October 23, 2020 Fixing DRM support and iGPU performance HERE > https://dortania.github.io/OpenCore-Post-Install/universal/drm.html#testing-hardware-acceleration-and-decoding Link to post Share on other sites
bss111 6 Posted October 23, 2020 Share Posted October 23, 2020 (edited) Try this > go to NVRM section > change (boot args) to the exact this line copy, past (delete old befor) = -v keepsyms=1 alcid=(your no ALC) -no_compat_check debug=0x100 -igfxsku -igfxcdc -igfxdvmt -wegnoegpu -shikigva=64 Important: some laptops need building OS usb from a-z for personal copy so you must be prepeare it by yuor self read my post above. Edited October 24, 2020 by bss111 tracking Link to post Share on other sites
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