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go to AMD PBS on the top tab (on the bios).You can use the following tools to do that. Lenovo has hidden some advanced options that are useful for overclocking, enabling s3 support, and other advanced functionality which can be enabled by writing special value on the i/o port. If you are using the official kernel (for example in Ubuntu 20.10) be aware that you need to disable secure boot because of the default behaviour of Ubuntu kernel (relevant discussion #10). If you are using mainline kernel, skip this step. GRUB_EARLY_INITRD_LINUX_CUSTOM="acpi_s3_override" Here are the support table for some of Ubuntu kernel version Kernel versionĮxpanding this list is highly appreciated :) Modify DSDTĪll of the following commands assume root shell (sudo -i) Use the bios unlock method (see Unlock BIOS)ĭue to the everchanging nature of the Linux Kernel, some fixes may works on some kernel version only.Modify the system to advertise S3 support via modified DSDT (see DSDT Modification).Wait until Lenovo adds an option in the UEFI to advertise S3 support (similar to the options available in Thinkpad). Lenovo yoga bluetooth not working driver#Wait until the problem in amdgpu driver is fixed in newer kernel version.] *ERROR* amdgpu_device_ip_resume failed (-110). In order to support this mode, the BIOS must not advertise support for the traditional suspend (S3) Īmdgpu 0000:03:00.0: ] *ERROR* ring gfx test failed (-110) ![]() In recent times Microsoft has introduced something called " Modern Standby" which is essentially a new way to suspend with the advantage of allowing the system to do some task while suspending (e.g. on boot, you need to disable secure boot on the UEFI setting or follow Suspend Background Note: If you encounter error: /vmlinux- has invalid signature. Lenovo yoga bluetooth not working update#If for some reason you can't update your kernel using the normal way, the following alternative can be used to upgrade the kernel: Please update your system apt update & apt upgrade However, Ubuntu 20.04.2 provide Linux 5.8 which is compatible with AMD 4000 graphics. To get the best result wait for Ubuntu 20.04.2 or upgrade manually to the latest stable kernel (5.8 by the time of publication). FixesĭISCLAIMER I am not responsible for any damage and negative consequences to your system Graphicīy default Ubuntu 20.04.1 shipped with Linux 5.4, support for AMD 4000 graphics is still experimental on 5.4. Lsusb, lspci and other output can be found on the System Output page. On kernel 5.10.5+ microphone is broken again, see fix below.Ĭonnection through Wi-fi may be unavailable due to Windows fast startup (see below) It seems there's a bug on kernel 5.7, please use other kernel version. Should work on older software but broken on some system (see below) Lenovo yoga bluetooth not working pro#Lenovo Yoga Slim 7 Pro is a different model Summaryĭisable bitlocker on windows to access windows partition from Linux
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