| Summary: | KDE cannot set backlight anymore, kernel can | ||
|---|---|---|---|
| Product: | [Unmaintained] Powerdevil | Reporter: | azrdev |
| Component: | general | Assignee: | Plasma Development Mailing List <plasma-devel> |
| Status: | RESOLVED WORKSFORME | ||
| Severity: | normal | CC: | justin.zobel, kde |
| Priority: | NOR | ||
| Version First Reported In: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
Those packages confuse me. You have workspace 4.11.19 installed as well as plasma 15.04?! There's no plasma 15.04, that's application versioning scheme. @Kai: maybe this stems from the KDE4 → KF5 transition of archlinux, which started in december(?) by moving applications each as soon as it was ported - at least that's how I understood it. plasma was not yet migrated at that point, I'm not sure if it is ready now - the arch wiki [1][2] mostly says it's an exclusive decision, i.e. I cannot install plasma4 and 5 simultaneously. Having said that, my system currently consists of the plasma4 desktop, and some of the applications from KF5 (gwenview, konsole, ...), the others still on KDE4 (systemsettings, dolphin, ...). Both kded4 and kded5 are running. [1] <https://wiki.archlinux.org/index.php/KDE#Installation> [2] <https://wiki.archlinux.org/index.php/Plasma#Installation> I've just tested this on KDE Neon User Edition and I'm unable to replicate the issue. Can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved. I'm setting status to "needsinfo" pending your response, please change back to "reported" or "resolved" when you respond, thanks. Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone! This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone! |
Since the last KDE update[1] on my archlinux, KDE cannot set the screen backlight anymore. When `echo`ing to /sys/class/backlight/radeon_bl0/brightness it works fine (as before), but if I press the XF86MonBrightness{Down,Up} buttons, or use the battery plasma widget to adjust the brightness, nothing happens except some log messages [2] about backlighthelper being started. Those had been there identically when it still worked. The brightness control of the battery widget initially shows 0%, previously it showed the actual current level. uname: Linux host 4.0.4-2-ARCH #1 SMP PREEMPT Fri May 22 03:05:23 UTC 2015 x86_64 GNU/Linux As in the current archlinux repos, my system has mixed KDE4 and KF5 components running: I can tell the versions if there's anything specific of interest. My graphics card is the embedded Radeon HD 7340 in my E2-1800 Zacate CPU, see [3] [1] excerpt from /var/log/pacman.log : [2015-05-13 09:46] [ALPM] upgraded kdebase-workspace (4.11.18-1 -> 4.11.19-1) [2015-05-13 09:46] [ALPM] upgraded kdebase-plasma (15.04.0-3 -> 15.04.1-1) [2] from journal: Jun 08 15:39:50 host dbus[236]: [system] Activating service name='org.kde.powerdevil.backlighthelper' (using servicehelper) Jun 08 15:39:50 host org.kde.powerdevil.backlighthelper[16793]: QDBusConnection: system D-Bus connection created before QCoreApplication. Application may misbehave. Jun 08 15:39:50 host dbus[236]: [system] Successfully activated service 'org.kde.powerdevil.backlighthelper' [3] sudo lspci -nnk -v -s 00:01.0 # my graphics card 00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 7340] [1002:9808] (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:5105] Flags: bus master, fast devsel, latency 0, IRQ 32 Memory at e0000000 (32-bit, prefetchable) [size=256M] I/O ports at 3000 [size=256] Memory at f0b00000 (32-bit, non-prefetchable) [size=256K] Expansion ROM at <unassigned> [disabled] Capabilities: [50] Power Management version 3 Capabilities: [58] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> Kernel driver in use: radeon Kernel modules: radeon Reproducible: Always