FS#63238 - [systemd] 242.32-3 incompatible with Zen+ (**NOT** Zen/Zen2) Ryzen CPUs, unbootable
Attached to Project:
Arch Linux
Opened by Noëlle Mercer (noellemercer) - Saturday, 20 July 2019, 18:09 GMT
Last edited by Laurent Carlier (lordheavy) - Thursday, 03 October 2019, 14:50 GMT
Opened by Noëlle Mercer (noellemercer) - Saturday, 20 July 2019, 18:09 GMT
Last edited by Laurent Carlier (lordheavy) - Thursday, 03 October 2019, 14:50 GMT
|
Details
Description: With my system, a Dell Inspiron 15 5585, Arch
is not installable or bootable; attempting to boot simply
gives a black screen with no information. This is likely to
be a systemd bug, as there have been reports of successful
boots when using OpenRC/sysvinit instead of systemd when I
asked about this issue on Reddit. My computer's specs are as
follows:
* CPU and GPU: AMD Ryzen 7 3700U Mobile Processor with Radeon Vega 10 (a "Zen+" CPU, a weird "middling" architecture, different from Zen and Zen2) * RAM: 16GB DDR4-2400 * SSD: 512GB M.2 PCIe * WLAN: Qualcomm QCA9377 Things I have tried: * Booting with the official release Arch ISO from 2019-07-01: Same issue occurs, a black screen on boot. * Booting with an Arch ISO created with archiso, including the latest packages/systemd: Same issue occurs, a black screen on boot. * Booting with SecureBoot on and off: Same issue occurs both ways, a black screen on boot. * Booting with nomodeset and variants: Same issue occurs, a black screen on boot. * Booting in legacy/BIOS mode: A kernel panic occurs. Text printed on screen is cutoff and illegible. Additional info: * [systemd] 242.32-3 * No log files; nothing is printed to the screen, it remains black. In legacy mode, text is illegible. * No upstream bug report, open or closed. Steps to reproduce: 1. Have a CPU 2. Build an Arch ISO with archiso including the latest systemd (the release installer has an old version that is also broken on Zen2) 3. Attempt to boot, observe a black screen regardless of kernel parameters, settings, etc. |
This task depends upon
Closed by Laurent Carlier (lordheavy)
Thursday, 03 October 2019, 14:50 GMT
Reason for closing: Fixed
Additional comments about closing: linux-5.3.1-1
Thursday, 03 October 2019, 14:50 GMT
Reason for closing: Fixed
Additional comments about closing: linux-5.3.1-1
Steps to reproduce:
1. Have a **Zen+** CPU
https://bugs.archlinux.org/task/63151#comment180241
Edit:
Alternately can you boot a busbybox based initrd (one generated by mkinitcpio without the systemd hook) with the option break which should leave the system at a rescue shell.