After doing a normal @world update, X could no longer be started on my PowerBook G4. The following upgrades were done: x11-libs/libdrm-2.4.40 [2.4.33] app-admin/eselect-opengl-1.2.6.1 [1.2.5-r1] x11-proto/glproto-1.4.16 [1.4.15] media-libs/mesa-9.0 [8.0.3] x11-base/xorg-server-1.13.0-r1 [1.12.4] x11-drivers/xf86-video-nouveau-1.0.4 [0.0.16_pre20120322] Reverting these packages to their previous versions solved the problem instantly. Checking /var/log/Xorg.0.log, I found that libdrm is apparently no longer able to find my card; with the previous version I get: [ 847.105] (II) NOUVEAU driver for NVIDIA chipset families : [ 847.105] RIVA TNT (NV04) [ 847.105] RIVA TNT2 (NV05) [ 847.105] GeForce 256 (NV10) [ 847.105] GeForce 2 (NV11, NV15) [ 847.105] GeForce 4MX (NV17, NV18) [ 847.105] GeForce 3 (NV20) [ 847.105] GeForce 4Ti (NV25, NV28) [ 847.105] GeForce FX (NV3x) [ 847.106] GeForce 6 (NV4x) [ 847.106] GeForce 7 (G7x) [ 847.106] GeForce 8 (G8x) [ 847.106] GeForce GTX 200 (NVA0) [ 847.106] GeForce GTX 400 (NVC0) [ 847.106] (--) using VT number 2 [ 847.109] drmOpenDevice: node name is /dev/dri/card0 [ 847.109] drmOpenDevice: open result is 9, (OK) [ 847.109] drmOpenByBusid: Searching for BusID pci:0000:00:10.0 [ 847.109] drmOpenDevice: node name is /dev/dri/card0 [ 847.109] drmOpenDevice: open result is 9, (OK) [ 847.109] drmOpenByBusid: drmOpenMinor returns 9 [ 847.109] drmOpenByBusid: drmGetBusid reports pci:0000:00:10.0 [ 847.109] (II) [drm] nouveau interface version: 1.0.0 But with the updated packages, I get: [ 4379.948] (II) NOUVEAU driver [ 4379.948] (II) NOUVEAU driver for NVIDIA chipset families : [ 4379.948] RIVA TNT (NV04) [ 4379.948] RIVA TNT2 (NV05) [ 4379.948] GeForce 256 (NV10) [ 4379.948] GeForce 2 (NV11, NV15) [ 4379.948] GeForce 4MX (NV17, NV18) [ 4379.948] GeForce 3 (NV20) [ 4379.948] GeForce 4Ti (NV25, NV28) [ 4379.948] GeForce FX (NV3x) [ 4379.948] GeForce 6 (NV4x) [ 4379.949] GeForce 7 (G7x) [ 4379.949] GeForce 8 (G8x) [ 4379.949] GeForce GTX 200 (NVA0) [ 4379.949] GeForce GTX 400 (NVC0) [ 4379.949] (--) using VT number 2 [ 4379.951] (II) [drm] nouveau interface version: 1.0.0 [ 4379.951] (EE) No devices detected. [ 4379.952] Fatal server error: [ 4379.952] no screens found
*** This bug has been marked as a duplicate of bug 446253 ***