Package: linux Version: 4.19.37-5 The version: Debian 10 Buster
The hardware: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV610/M74 [Mobility Radeon HD 2400 XT] On boot I see this message. In past Debian versions I can either install firmware-amd-graphics to silence the message or ignore it; either way the display would work fine. Jul 7 08:11:45 localhost kernel: [ 2.232573] [drm] radeon kernel modesetting enabled. Jul 7 08:11:45 localhost kernel: [ 2.232719] [drm:radeon_pci_probe [radeon]] *ERROR* radeon kernel modesetting for R600 or later requires firmware installed Jul 7 08:11:45 localhost kernel: [ 2.232786] See https://wiki.debia n.org/Firmware for information about missing firmware With Buster things seem to fall over and die: Jul 7 08:11:46 localhost systemd[1]: Starting GNOME Display Manager... Jul 7 08:11:47 localhost systemd[1]: Started GNOME Display Manager. Jul 7 08:11:50 localhost systemd[1]: Started Session c1 of user Debian-gdm. Jul 7 08:11:54 localhost gnome-shell[571]: Failed to create backend: Could not find a primary drm kms device Jul 7 08:11:54 localhost gnome-session[562]: gnome-session- binary[562]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1 Jul 7 08:11:54 localhost gnome-session-binary[562]: Unrecoverable failure in required component org.gnome.Shell.desktop Jul 7 08:11:54 localhost gnome-session-binary[562]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1 I decide to try to see if the firmware makes a difference. I enable nonfree, install firmware-amd-graphics, and reboot but nothing has changed. The exact same messages as above still appears; below. It's almost like the kernel still couldn't find it, even after it had been installed. I compiled a kernel from upstream which was able to load the firmware and get a graphical interface. Since replacing the kernel solved it I'm reporting this against the kernel. Jul 7 08:30:10 localhost kernel: [ 2.198524] [drm] radeon kernel modesetting enabled. Jul 7 08:30:10 localhost kernel: [ 2.198675] [drm:radeon_pci_probe [radeon]] *ERROR* radeon kernel modesetting for R600 or later requires firmware installed Jul 7 08:30:10 localhost kernel: [ 2.198745] See https://wiki.debia n.org/Firmware for information about missing firmware Jul 7 08:30:12 localhost systemd[1]: Starting GNOME Display Manager... Jul 7 08:30:13 localhost systemd[1]: Started GNOME Display Manager. Jul 7 08:30:16 localhost systemd[1]: Started Session c1 of user Debian-gdm. Jul 7 08:30:19 localhost gnome-shell[581]: Failed to create backend: Could not find a primary drm kms device Jul 7 08:30:20 localhost gnome-session[573]: gnome-session- binary[573]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1 Jul 7 08:30:20 localhost gnome-session-binary[573]: Unrecoverable failure in required component org.gnome.Shell.desktop Jul 7 08:30:20 localhost gnome-session-binary[573]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1
