Hello everybody I'm experiencing this bug too , I'm running Kubuntu 14.04 lts 64bit and using fglrx-updates (Radeon HD 7790) I don't know if this applies to other setups... distros... different window-managers etc ... This is the only scenario in which I could test and have this problem.
The steps I've taken to reproduce this behaviour are the following: 1 - Install fglrx-updates drivers 2 - Wait for the display to be switched off by the power-manager 3 - After the screen has fully switched off and entered stand-by mode, trying to move the mouse or hitting any of the keys on your keyboard simply does not wake up the screen. Your display is permanently stuck in sleep mode and you have to reboot your computer. There's "just" something wrong with the computer telling the screen to wake up because while the display is off, the system is still running I guess as I managed to avoid hard-resetting my computer by using the terminal and issuing a shutdown command (going by memory, since the display is OFF). I haven't tested the workarounds suggested above but I'll keep this post updated as soon as I try. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to fglrx-installer in Ubuntu. https://bugs.launchpad.net/bugs/958279 Title: FGLRX DPMS support totally broken, fails to wake up the monitor after putting it to sleep. Status in AMD fglrx video driver: Confirmed Status in “fglrx-installer” package in Ubuntu: Confirmed Bug description: I have filed a bug report in AMD's bugzilla about this. I would also like to file one here to track that one. --- For quite a while now, I've just turned DPMS off to keep anything from putting the monitor to sleep to work around this problem. When DPMS support is on (which is the default setting), and something attempts to put the display to sleep (in this case, KDE's desktop power management daemon, but I've had this problem with XFCE and GNOME, and under Ubuntu's Unity desktop as well), the monitor cannot come back on when the user returns and moves the mouse or presses a button on the keyboard. The rest of the system is apparently still functional as I've left music playing before, and then when I've returned, the display is asleep and not responding to my attempts to wake it up, but the music is still playing. Steps to reproduce: 1. I am assuming that for the purposes of reproducing this bug that the following is true, even though I've seen it on various distributions and several versions of Catalyst. You are using Ubuntu 11.10 or 12.04 development branch. You are using Catalyst 12.2 with FGLRX 8.95. You are using a RadeonHD 5670. You are using the Unity or KDE desktop environment. (Either one should provoke this problem.) 2. Wait for the display to be turned off/go into sleep mode. NOT dimmed! If you catch it while it is dimmed, but before it is turned off, you will end up back at your desktop. 3. After the display is off/asleep, attempt to move your mouse or press a button on the keyboard. Observe that the system is NOT responding and the monitor is stuck in sleep mode. Actual result: The display fails to resume, anything you left open is trashed, game over man, game over! :) Expected result: The display mode should be resumed properly in the state that it was previously in. The open source radeon driver always manages to do this right. Workaround: Generate a xorg.conf file with this command: sudo amdconfig --initial Open the xorg.conf file: sudo nano /etc/X11/xorg.conf Find this line: (under Section "Monitor") Option "DPMS" "true" change it to read Option "DPMS" "false" Restart the X server. Observe that your desktop is no longer able to put the display to sleep and that AMD's proprietary display driver is contributing to increased global warming and a higher electric bill. (But doesn't screw up the X server and cause all of user's open files to be lost) To manage notifications about this bug go to: https://bugs.launchpad.net/fglrx/+bug/958279/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
