A buddy is running a Pi 4 with the official 20.04 Pi image (freshly set up) and with the 1011 kernel WITHOUT ISSUES. His config looks like this:
cmdline.txt: root=LABEL=writable rootfstype=ext4 rootwait console=serial0,115200 console=tty1 net.ifnames=0 dwc_otg.lpm_enable=0 elevator=deadline fixrtc config.txt: [pi4] kernel=uboot_rpi_4.bin max_framebuffers=2 [all] arm_64bit=1 device_tree_address=0x03000000 enable_uart=1 dtparam=audio=on dtparam=i2c_arm=on dtparam=spi=on cmdline=cmdline.txt over_voltage=3 arm_freq=1900 gpu_freq=600 I don't have time to experiment at the moment, though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1880607 Title: Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1880607/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
