Package: firmware-amd-graphics Version: 20161130-2 Severity: important Dear Maintainer, Using a newer kernel (4.7.10 worked. 4.8.4 and 4.10.1 failed) results in the x-window system falling back to software rendering. The package firmware-amd-graphics has been updated to version 20161130-2 as suggested in bug report 843061. However this did not help. Looking into dmesg, radeon/PITCAIRN_mc2.bin loaded successfully radeon/si58_mc.bin failed: [ 4.855636] si_fw: mixing new and old firmware! [ 4.855771] [drm:si_init [radeon]] *ERROR* Failed to load firmware! [ 4.855812] radeon 0000:01:00.0: Fatal error during GPU init The message about new and old firmware is a bit misleading here. si58_mc.bin is simly missing. Copying si58_mc.bin from https://people.freedesktop.org/~agd5f/radeon_ucode/ to /lib/firmware/radeon fixed the problem. Looking into the sourcecode of gpu/drm/radeon/si.c, it looks to me like the firmware is required when the card has some special memory configuration. My card reports as: VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Curacao PRO [Radeon R9 270] (rev 81) Greetings, Malte
-- System Information: Debian Release: 8.7 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.10.1 (SMP w/4 CPU cores) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Init: sysvinit (via /sbin/init) firmware-amd-graphics depends on no packages. firmware-amd-graphics recommends no packages. Versions of packages firmware-amd-graphics suggests: ii initramfs-tools 0.120+deb8u2 -- no debconf information