loganMac Posted October 16, 2019 Share Posted October 16, 2019 (edited) Solve: Remove graphic card and clean dust. Insert back in and boom, it's works. Update screenshot & note as of Oct 18 My spec: ASUS P8B75-M/CSM EVGA GeForce GT 740 SC 4GB (Kepler GK107 chip) Quote Clover for UEFI booting only Install Clover in the ESP UEFI Drivers-->ApfsDriverLoader, AptioMemoryFix, NTFS, and VBoxHfs EFI\CLOVER\Kext\Other --> FakeSMC, Lilu, WhateverGreen, RealtekRTL8111, USBInjectAll, and VoodooHDA Config.plist KernelAndKextPatches-->check mark on these Apple RTC and AppleIntelCPUPM SMBIOS--> iMac13,2 Step took one at a time: EC0 to EC shikigva=40 and iMac14.2 Remove all above and just use iMac14.2 Remove all above and only use shikigva=40 Clover v2.5k-5096 from CloverHackyColor's github Reinstall clean macOS but this time used Clover v2.5k-5093 from Dids's github None work for me SysInfo show correct drivers but desktop background is weird. Majority apps works as expected. YouTube video play fine. If I set display to scale and set one level lower than 1440x900, desktop background is fine but it's not as good as full 1440x900. For Mojave 10.14.6 and lower, resolution was at full 1440x900. Please help me. Thank you Edited October 19, 2019 by loganMac update - solve Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/ Share on other sites More sharing options...
loganMac Posted October 16, 2019 Author Share Posted October 16, 2019 22 minutes ago, Hervé said: Which CPU to you have in that platform? I'm only asking because you said you had selected AICPUPM and KernelPm patches and you should only ever need one or the other: AICPUPM for Sandy Bridge and Ivy Bridge, KernelPm for Haswell and later. This being said, it's not something that should affect graphics. Looking at the screenshots you posted, the GT740 is indeed supported OOB since you clearly have graphics acceleration working and I hope 1st gen Kepler such as your GK107 won't be suffering in Catalina like Fermi GF119 cards did in Sierra and beyond: officially supported by the vanilla kexts but poorly and with all sorts of defects... Kepler 2.0 cards (e.g. GK208/GK208B-based GT710/GT720/GT730) certainly don't appear to suffer from this in Catalina. SMBIOS iMac13,2 is Ok with an Nvidia card (that's what I use on my old C2D with Kepler 2.0 GT730). Did you update Lilu + WEG to latest versions? Your graphics section should be left empty too. CPU is Intel Core i5-2400 CPU @ 3.10 GHz 3.30 GHz (Sandy Bridge 32nm), https://ark.intel.com/content/www/us/en/ark/products/52207/intel-core-i5-2400-processor-6m-cache-up-to-3-40-ghz.html I will correct my conflg.plist. Clover default to those PM. Yes Graphic is left untouched. Lili + WEG both are latest version from acidanthera's github. I found this link, https://khronokernel-3.gitbook.io/catalina-gpu-buyers-guide/modern-gpus/nvidia-gpu but not sure (don't understand) if my GT740 is part of the Unsupported GPU Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2693856 Share on other sites More sharing options...
loganMac Posted October 16, 2019 Author Share Posted October 16, 2019 (edited) 19 minutes ago, Hervé said: Ok, good. Your card is supported (you would not have Metal support/graphics acceleration otherwise) but you will have noticed in that very useful article you linked that GK106 models suffer from weaknesses in Apple's Nvidia drivers. That may also effect your GT740. I know you said it was based on GK107 but there are GK106-based GT740 too... Nvidia GeForce GT700 Series The article makes one last mention that you could try: boot arg shikigva=40 + SMBIOS iMac14,2. Give that a try (but keep a backup of your current config that you may recall from Clover's main menu, just in case...). shikigva=40 boot flag: Swaps boardID to iMac14,2 for better Nvidia Support and whitelists patches What does the author mean by "and whitelists patches"? Is somethine else I to patch or just "boot arg shikigva=40 + SMBIOS iMac14,2" I will report back later tonight. Again, thank you for your fast reply. Edited October 16, 2019 by loganMac Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2693865 Share on other sites More sharing options...
loganMac Posted October 17, 2019 Author Share Posted October 17, 2019 @Hervé sorry for quoting. I tried all methods one at a time and even did a clean installation again, still no luck. But I noticed on your other post, about changing to EC. I view your kext screenshots and I saw you only had NVDAGK100Hal. Where as mine, I had both NVDAGK and NVDAGF in /S/L/E. Could this cause the conflict since my card could be GK106/107? The NVCAP string is the same as yours. Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2693933 Share on other sites More sharing options...
loganMac Posted October 17, 2019 Author Share Posted October 17, 2019 (edited) @Hervé Attach include the following: Hope this see my issues. iMac.ioreg (untouched) DSDT.aml (untouched) EFI https://www.dropbox.com/s/pf6ve7gkcb3ousj/CloverEFI.zip?dl=1 Oh, also Apple update 10.15 and now the login screen looks good except the desktop background. Edited October 17, 2019 by loganMac Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2693937 Share on other sites More sharing options...
droples Posted October 17, 2019 Share Posted October 17, 2019 Gigabyte GT 740 works without problems. CSM=Disabled. OpenCore. 1 Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2693940 Share on other sites More sharing options...
loganMac Posted October 17, 2019 Author Share Posted October 17, 2019 (edited) @droples I will try CSM=Disabled in Clover or else I will try OpenCore. Thank you both you and @Hervé Edited October 17, 2019 by loganMac Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2693942 Share on other sites More sharing options...
loganMac Posted October 17, 2019 Author Share Posted October 17, 2019 @droples My board, https://www.asus.com/us/Motherboards/P8B75MCSM When you say CSM=Disabled, are you referring to disable in motherboard bios or in Config.plist? I checked my bios user menu and I don't see Compatibility Support Module (CSM). This what it has: 2.7.6 UEFI/Legacy Boot/Both ---> UEFI Boot 2.7.7 PCI ROM Priority (Not sure what I set) [Legacy ROM] Launch Legacy ROM [EFI Compatibe ROM] Launch UEFI Compatible ROM If you refer to Config.plist, is that added to Boot Argument? Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2693954 Share on other sites More sharing options...
loganMac Posted October 18, 2019 Author Share Posted October 18, 2019 (edited) FYI Updated screenshot and edit a few things. Please see thread #1 for update. So far still no luck. Hope someone can guide me. I tried OpenCore but I'm confused what to do. It's totally different from Clover. So no success w/OpenCore. I'm not sure how @droples got GT740 to work but I noticed the ROM version (last 2 digit) is different from mine. Maybe because the card is 2Gb vs a 4Gb. I can't find CSM=Disabled in my MB bios or in Clover config.plist. Or not even sure where to add that in config.plist @droples, may I see your config.plist. Thank you Or maybe it's only work for HDMI instead of DVI? Unfortunately, my monitor do not have HDMI. Edited October 18, 2019 by loganMac Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2694105 Share on other sites More sharing options...
macattackjack Posted October 18, 2019 Share Posted October 18, 2019 I had a hard time getting this my 2 GB Evga 710 card to work with Sierra and High Sierra, and Mojave. For a clean install they worked at low resolution, but to get full compatibility, I can't tell you what I did exactly. I do know that I ended up replacing or adding the nVidia web drivers from this package WebDriver-387.10.10.10.40.118.pkg, and that was part of the process. The WhatEvergreen and lilU were needed as well? But then I'm on the X79 sabertooth, and that makes a difference of course. Once I followed the required updates for Mojave to Catalina, it all worked fine. Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2694176 Share on other sites More sharing options...
loganMac Posted October 19, 2019 Author Share Posted October 19, 2019 I did already disabled CSM in bios and still weird screen. Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2694191 Share on other sites More sharing options...
loganMac Posted October 19, 2019 Author Share Posted October 19, 2019 Ok got it works. I remove the graphic card, clean it and reinsert. Boom, it works. No boot argument in config.plist 1 Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2694200 Share on other sites More sharing options...
loganMac Posted October 19, 2019 Author Share Posted October 19, 2019 To prove if this is true about cleaning and inserting the card. I did a clean installation and nope the theory was wrong. The background still split in half. I think it might hardware issue itself either the dvi cable or the monitor. This is strange, if I change to plain background, desktop background is good. Any other background I used will cause issue as mentioned. Link to comment https://www.insanelymac.com/forum/topic/340764-solve-gt740-catalina-show-weird-screen/#findComment-2694246 Share on other sites More sharing options...
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