| Summary: | Backlight stopped working with kernels 4.14.x - Nvidia with nouveau | ||
|---|---|---|---|
| Product: | Mageia | Reporter: | Chris B <shybluenight> |
| Component: | RPM Packages | Assignee: | Kernel and Drivers maintainers <kernel> |
| Status: | RESOLVED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | Normal | CC: | marja11, tmb |
| Version: | 6 | ||
| Target Milestone: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| URL: | https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.16-rc6&id=9e75dc61eaa9acd1bff83c3b814ac2af6dc1f64c | ||
| Whiteboard: | |||
| Source RPM: | kernel-desktop-4.14.20-1.mga6 | CVE: | |
| Status comment: | fixed upstream in kernel-4.16-rc6 | ||
| Bug Depends on: | 22909 | ||
| Bug Blocks: | |||
|
Description
Chris B
2018-05-11 15:53:22 CEST
Marja Van Waes
2018-05-12 08:54:00 CEST
Status comment:
(none) =>
fixed upstream in kernel-4.16-rc6 Patch added in kernel-4.14.40-1.mga6 currently building CC:
(none) =>
tmb Thank you, Thomas. That was fast! When the new kernel hits updates_testing, I'll install it and report back.
Thomas Backlund
2018-05-13 10:22:25 CEST
Depends on:
(none) =>
22909 Installed: - cpupower-4.14.40-1.mga6.x86_64 - kernel-desktop-4.14.40-1.mga6-1-1.mga6.x86_64 - kernel-desktop-devel-4.14.40-1.mga6-1-1.mga6.x86_64 - kernel-desktop-devel-latest-4.14.40-1.mga6.x86_64 - kernel-desktop-latest-4.14.40-1.mga6.x86_64 - kernel-userspace-headers-4.14.40-1.mga6.x86_64 - broadcom-wl dkms-broadcom - etc. Installed cleanly, first reboot into the new kernel ok. Backlight is working, function keys are working, network/broadcom wifi chip working, suspend and resume from suspend working. Applications working. After rebooting, again into the new kernel: boot process stopped. Had to hard reset the laptop. Booted back into kernel 4.9.56: everything is normal. Not related to this specific bug: After extensive testing - I've got the impression it's the cpupower and setting the frequency that goes crazy with the new kernel. Uninstalled the newer cpupower package, installed the older cpupower rpm. frequency was set to ondemand. Set it to performance, made sure cpupower service is running at boot time. Somehow I managed to boot the system with the new kernel again. Odd: cpupower now reports a frequency that is not supported, it throttles back and forth and sets different (not supported? only 800, 1200 and 1400 should be there?) frequencies, for example 1322, but within the range. But ‘lscpu | grep MHz’ reports a fixed frequency, in my case with the gouvernor ‘performance’ it is 1400. It does not do this with the older kernels. So, this specific bug is fixed. And meanwhile I can boot the new kernel again. Made 4 reboot tests. I've forget something. It's possible that I missed installing a package from updates_testing. I manually selected the packages. Maybe this leads to the booting problem. * The module in use is: acpi_cpufreq * There are more (minor linux related) problems with this old MacBook Air 2010, but it still runs pretty fast and almost stable, overall very enjoyable with M6. But I guess I'm the only one still using this hardware, with linux that is. Therefore I'm unsure if it's worth to post my findings/problems at https://bugs.mageia.org/show_bug.cgi?id=22909 An update for this issue has been pushed to the Mageia Updates repository. https://advisories.mageia.org/MGASA-2018-0249.html Status:
ASSIGNED =>
RESOLVED |