https://bugs.freedesktop.org/show_bug.cgi?id=38030
--- Comment #19 from Filipe Brandenburger <[email protected]> 2011-07-04 19:10:40 PDT --- Hi, I'm having a problem very similar to the one reported by Phil Armstrong. I'm running: - Ubuntu 11.04 (Natty Narwhal) - kernel 2.6.38-8-generic-pae #42-Ubuntu i386 - Loading Radeon driver through KMS/DRM (passing radeon.modeset=1 parameter to kernel) - xserver-xorg 1:7.6+4ubuntu3.1 - xserver-xorg-video-ati/xserver-xorg-video-radeon 1:6.14.0-0ubuntu4 - ATI Mobility Radeon HD 5450 MXM Discrete Graphics Card - Dell ST2420L monitor - HDMI cable When I try to suspend/off the screen (either by inactivity through gnome-power-manager, or using xset dpms force off) it gets into a cycle where it prints the "going to sleep" message repeatedly, the monitor is still backlit. Workarounds that worked for me: - Using "sudo vbetool dpms off" - Using "xrandr --output HDMI-0 --off" - Using the fglrx driver (without KMS/DRM of course) - Using a VGA cable (this is the workaround I'm currently using) The problem happens only with the xserver-xorg-video-radeon cable, either with or without KMS/DRM, and with the HDMI cable. The issue seems to be in the HDMI code and in the xorg driver (not the KMS one, or maybe it's on both?). I found these messages in the dmesg output, but they don't match the times when I tried to suspend the screen so I don't think they are related (they might be though): [ 738.188630] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 1768.943075] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 2905.929263] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 2952.912733] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 6534.356949] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id I'll attach some files (Xorg.0.log, lspci output, etc.) to help you diagnose the issue. Let me know if there is any test I can do for you, I'm willing to patch/compile/add traces to any components on my system as long as you can give me some hints on what I should be looking for... Thanks! Fil -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
