Description of problem: I have a r600 ATI card connected to my monitor with DisplayPort-cables. When my monitor goes into suspend, it won't come back on. This happens on 2.6.33.2 and 2.6.33.3, but not 2.6.33.1 and earlier. In /var/log/messages i get the following: Apr 30 16:34:22 localhost kernel: [drm:dp_link_train] *ERROR* clock recovery tried 5 times Apr 30 16:34:22 localhost kernel: [drm:dp_link_train] *ERROR* clock recovery failed Apr 30 16:34:22 localhost kernel: [drm:dp_link_train] *ERROR* channel eq failed: 5 tries Apr 30 16:34:22 localhost kernel: [drm:dp_link_train] *ERROR* channel eq failed lspci: 01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3470 Version-Release number of selected component (if applicable): xorg-x11-drv-ati-6.13.0-1.fc13.x86_64 mesa-dri-drivers-7.8.1-2.fc13.x86_64 mesa-dri-drivers-experimental-7.8.1-2.fc13.x86_64 mesa-libGL-7.8.1-2.fc13.x86_64 mesa-libGLU-7.8.1-2.fc13.x86_64 xorg-x11-server-Xorg-1.8.0-8.fc13.x86_64 Kernels that work: kernel-2.6.33.1-24.fc13.x86_64 Kernels that doesn't work: kernel-2.6.33.2-41.fc13.x86_64 kernel-2.6.33.2-57.fc13.x86_64 kernel-2.6.33.3-73.fc13.x86_64 How reproducible: Steps to Reproduce: 1. Boot 2.6.33.2 or newer kernels 2. Screensaver turns on 3. Monitor suspends Actual results: Won't come back on Expected results: Monitor should be turned on again Additional info:
It still doesn't work with these kernels: kernel-2.6.33.3-85.fc13.x86_64 kernel-2.6.33.4-95.fc13.x86_64 kernel-2.6.33.5-112.fc13.x86_64 For me this makes all kernel-updates useless.
Still doesn't work on kernel-2.6.33.6-147.fc13.x86_64. :-(
I have the same problem. Screen is black after suspend. As a workaround I have to press CTRL-ALT-F7 CTRL-ALT-F9, CTRL-ALT-F1 etc. until I get my desktop back. $ lspci 02:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 9600 GSO] (rev a2) mesa-dri-drivers-experimental-7.9-0.8.fc14.x86_64 xorg-x11-drv-nouveau-0.0.16-12.20100920gitf1ac413.fc14.x86_64
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