The vcons issue is covered by bug 144178, and since it has a more detailed analysis of the issue let's focus this bug report on the broken DPMS issue.
The corruption and performance issues mentioned in comment #6 are covered by bug #154514. For the tuxpaint issue described in comment #7, bug #144182 seems to cover that. ** Summary changed: - [Gutsy] multiple regressions since Feisty + Screen blanks and freezes after a few minutes of idling, possibly due to broken DPMS ** Description changed: Since switching to Gutsy to verify whether the packages I maintain still - operate as expected, I have noticed several serious regressions in X: - - * I cannot switch to a vcons anymore. Doing the usual CTRL+ALT+F1 leads - me to a blank screen and doing CTRL+ALT+F7 does not return me to X. - - * After a few minutes of idle operation, the screen goes blank and - cannot be returned to normal. The only way to get screen content again - is to reboot, which is possible either by pressing the ACPI-enabled - power button or a remote SSH connection. Broken DPMS is suspected, - although I have no way of confirming this. - - I consider both of these regressions as serious, since they can result - in a situation where a user has content being worked on, on screen, - which they end up loosing because they have to reboot their system - blindfolded to get screen content again. + operate as expected, I have noticed that after a few minutes of idle + operation, the screen goes blank and cannot be returned to normal. The + only way to get screen content again is to reboot, which is possible + either by pressing the ACPI-enabled power button or a remote SSH + connection. Broken DPMS is suspected, although I have no way of + confirming this. Purposely downgrading xserver-xorg-core and anything that depend on it, then pining it to that version, while keeping all the rest of the packages to Gutsy versions solves it, which suggests something related to X.org upgrade from 1.2 to 1.3 might be at play. Note: someone on #ltsp mentions a similar situation using xserver-xorg- video-amd, yet the exact same AMD driver doesn't exhibit this behavior when compiled and used with earlier X releases. -- Screen blanks and freezes after a few minutes of idling, possibly due to broken DPMS https://bugs.launchpad.net/bugs/136853 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
