Xscreensaver won't switch off display

fsflover · August 13, 2023, 9:14pm

lock screen does not turn off backlight while active (nouveau/ThinkPad P52)

opened 09:07AM - 26 Apr 19 UTC

closed 05:51PM - 14 Aug 23 UTC

T: bug R: duplicate C: desktop-linux P: minor hardware support affects-4.1

**Qubes OS version** R4.0, kernel-latest **Affected component(s) or function…ality** X11 **Brief summary** Activate the lock screen. The backlight stays on. **To Reproduce** See summary. **Expected behavior** While the screen is locked the backlight should be turned off. **Actual behavior** It glows eerily in the dark. **Additional context** Backlight control on Lenovo P52 with nouveau started working with kernel 5.0.7 BUT currently requires a modified xen.cfg enty: kernel=vmlinuz-5.0.9-1.pvops.qubes.x86_64 [...] acpi_backlight=vendor acpi_osi="Linux" thinkpad-acpi.brightness_enable=1 nouveau.modeset=1 [...] It seems that the currently used lockscreen is not up to the task and also cannot be configured to use alternative ways of controlling screen brightness. **Solutions you've tried** Installing Arch Linux helps tremendously. Please consider replacing the component.

github.com/QubesOS/qubes-issues

Monitor DPMS power-saving not working

opened 08:36PM - 14 Feb 18 UTC

tasket

T: bug P: major C: desktop-linux-xfce4 hardware support affects-4.1

#### Qubes OS version:  R4.0-rc4 --- ### Steps to reproduce the behavior: In `xfce4-power-manager-settings` adjust the display to suspend and/or power off after a set time, then wait. ### Expected behavior: As with R3.2, monitor goes into standby/suspend/low power mode. ### Actual behavior: Monitor display is blanked, but remains fully powered-on. ### General notes: This may be related to the fact that I used KDE on R3.2, and now I use Xfce on R4.0. --- #### Related issues: Maybe issue #2212

@adw these issues look the same to me. One could probably be closed as a duplicate.

There is a workaround: