RX580

[rommy]

This set up for migrating to Big Sur is driving me crazy: try to solve an issue and a more complicated arises! Now I cannot boot Catalina with Clover nor Opencore. This panic appears, see image. How to solve it knowing the RX580 is the only GPU DVI connected to a monitor? No this kind of trouble until a couple of hours ago!!

 

[Feartech]

This set up for migrating to Big Sur is driving me crazy: try to solve an issue and a more complicated arises! Now I cannot boot Catalina with Clover nor Opencore. This panic appears, see image. How to solve it knowing the RX580 is the only GPU DVI connected to a monitor? No this kind of trouble until a couple of hours ago!!

i have given you your own thread in Graphics section as your issue is graphics related

 

[Bustycat]

You may need to check CSM and boot arguments.

Kernel Issues | OpenCore Install Guide

dortania.github.io

 

[rommy]

You may need to check CSM and boot arguments.

Kernel Issues | OpenCore Install Guide

dortania.github.io

Thanks both, but I didn't succeed in spite I litterally followed the guide. Booting Clover or Opencore leads me to crash always at the same point: IOConsoleUsers: gIOScreenLock.../gIOLockState (3...
I don't know what to do anymore. Since I have already prepared the installation USB key with Big Sur, do you believe I can overcome the issue? Also if I'm annoyed losing data and applications from actual installation

 

[Feartech]

Thanks both, but I didn't succeed in spite I litterally followed the guide. Booting Clover or Opencore leads me to crash always at the same point: IOConsoleUsers: gIOScreenLock.../gIOLockState (3...
I don't know what to do anymore. Since I have already prepared the installation USB key with Big Sur, do you believe I can overcome the issue? Also if I'm annoyed losing data and applications from actual installation

upload your OpenCore folder and let someone take a look

 

[rommy]

upload your OpenCore folder and let someone take a look

Here it is the whole folder. Many thanks in advance

 

[Bustycat]

Here it is the whole folder. Many thanks in advance

Also tried igfxonln=1? And you shouldn't leave csr-active-config and prev-lang:kbd as blank.

 

[rommy]

Also tried igfxonln=1? And you shouldn't leave csr-active-config and prev-lang:kbd as blank.

I already set igfxonln=1 but I removed it because not useful. In any case I tried again
I also set:

csr-active-config 00000000 (SIP enabled) or FF070000 (SIP disabled)
prev-lang:kbd en-US:0

No luck, the error remains the same

 

[rommy]

Also tried igfxonln=1? And you shouldn't leave csr-active-config and prev-lang:kbd as blank.

Sorry foer double post. Eliminate the last

 

[Feartech]

Here it is the whole folder. Many thanks in advance

just to let you know:

<dict>
                <key>Comment</key>
                <string>Rename GFX0 to IGPU (Graphics)</string>
                <key>Count</key>
                <integer>0</integer>
                <key>Disabled</key>
                <false/>
                <key>Find</key>
                <data>
                R0ZYMA==
                </data>
                <key>Limit</key>
                <integer>0</integer>
                <key>Mask</key>
                <data>
                </data>
                <key>OemTableId</key>
                <data>
                </data>
                <key>Replace</key>
                <data>
                SUdQVQ==
                </data>
                <key>ReplaceMask</key>
                <data>
                </data>
                <key>Skip</key>
                <integer>0</integer>
                <key>TableLength</key>
                <integer>0</integer>
                <key>TableSignature</key>
                <data>
                RFNEVA==
                </data>
            </dict>

is entered wrong, should be:

<dict>
                <key>Comment</key>
                <string>Rename GFX0 to IGPU (Graphics)</string>
                <key>Count</key>
                <integer>0</integer>
                <key>Enabled</key>
                <true/>
                <key>Find</key>
                <data>
                R0ZYMA==
                </data>
                <key>Limit</key>
                <integer>0</integer>
                <key>Mask</key>
                <data>
                </data>
                <key>OemTableId</key>
                <data>
                </data>
                <key>Replace</key>
                <data>
                SUdQVQ==
                </data>
                <key>ReplaceMask</key>
                <data>
                </data>
                <key>Skip</key>
                <integer>0</integer>
                <key>TableLength</key>
                <integer>0</integer>
                <key>TableSignature</key>
                <data>
                RFNEVA==
                </data>
            </dict>

however, you don't need those patches, but in the future if/when you do need to use a patch, then that would be the way to enter it in

would also be best to remove:

<dict>
                <key>Arch</key>
                <string>x86_64</string>
                <key>BundlePath</key>
                <string>USBInjectAll.kext</string>
                <key>Comment</key>
                <string></string>
                <key>Enabled</key>
                <true/>
                <key>ExecutablePath</key>
                <string>Contents/MacOS/USBInjectAll</string>
                <key>MaxKernel</key>
                <string></string>
                <key>MinKernel</key>
                <string></string>
                <key>PlistPath</key>
                <string>Contents/Info.plist</string>
            </dict>

and replace with your usbports.kexts if configured correctly and also disable:
XhciPortLimit

-f boot argument doesn't do anything nowadays

-x can be removed

iMac19,1 would be a better choice of smbios according to your hardware profile, or check over Headless Configuration:

An iDiot's Guide To Lilu and its Plug-ins

An iDiot's Guide To Lilu and its Plug-in's Last Update: 22nd Jan 2021 (Add note about OpenCore config.plist modifications) About this Guide Note: This guide was written when Clover was the boot loader of choice as such the config.plist examples in this guide are mostley Clover specific ... if...

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