Choosing a config.plist
The Clover installer places a default config.plist at /EFI/Clover/config.plist. It is almost universally wrong and most likely will not work at all for most laptops.
You should choose one that matches your hardware from this repository:
https://github.com/RehabMan/OS-X-Clover-Laptop-Config
As you can tell by looking at the listing of files, the configs vary by graphics hardware configuration. If your screen is 1366x768, pick one of those. If your system is mixed (eg. HD3000 on 7-series, or HD4000 on 6-series) be sure to take that into account. If your screen is 1600x900 (or greater) use one of the 1600x900 config files. Haswell graphics (and later) are not dependent on screen resolution.
Note: Clover cannot read HTML (config.plist is a plist/xml), so make sure to download from the "Raw" link or download the entire ZIP to get all files:
https://github.com/RehabMan/OS-X-Clover-Laptop-Config/archive/master.zip
For Ivy Bridge (HD4000), you may need to change the ig-platform-id that is used at /Graphics/ig-platform-id. But these configurations work most of the time.
Common ig-platform-ids:
0x01660003: HD4000 1366x768
0x01660004: HD4000 1600x900, 1920x1080
0x01660008, 0x01660009: HD4000 1600x900, 1920x1080
Or alternate Haswell values:
0xa260006: HD4400/HD4600/HD5000
Other Haswell ig-platform-id values: 0xa260005, 0xa260000, 0xa160000, 0xa2e0008, 0xa2e000a
Always use a plist editor (such as Xcode or PlistEdit Pro) when making changes to config.plist.
By default, config.plist/Graphics/ig-platform-id is commented out as #ig-platform-id. Of course, #ig-platform-id is ignored, and must be changed to ig-platform-id before it will become effective.
Note: HD4200, HD4400, and HD4600 on 10.10+ needs special patches/injections, thus the separate config_HD4600_4400_4200.plist. If you're installing Mavericks, use the
config_HD5000_5100_5200.plist instead even for HD4200, HD4400 and HD4600. Actually, either one will work, but there is less work arounds (FakeID) required in 10.9.x. Of course, if you ever update beyond 10.9.x, you will need the appropriate changes to FakeID.
Note: HD5600 on 10.11+ needs special patches/injections, thus the separate config_HD5600.plist. If you're installing Yosemite (not recommended with Broadwell), use config_HD5300_5500_6000.plist.
Copy your selected configuration file, and paste it to /EFI/Clover,
make sure it is re-named as config.plist. Clover will only load configurations from /EFI/Clover/config.plist.
In case you cannot boot with a valid ig-platform-id (may need to inject EDID, or patch IOKit/CoreDisplay when you have a 4k display, or other problems), use an invalid ig-platform-id (0x12345678) and deal with the graphics issue at post-install. You can change the ig-platform-id on the fly within Clover options.