#Ubuntu 10.04 was just a piece of cake. I almost forgot these gradient buttons. Today they look a bit clumsy but back then I was pretty neat. I really missed them in 11+. But most importantly it doesn't mess up my backlight. I wonder what happened between 10 and 12. The suspects are systemd with it's backlight daemon and unspecified kernel options. I guess there is only one way to understand: I need a system without systemd
I think I've found the exact bugfix that broke my backlight. And if I'm right 12.04.1 won't work. But first, testing 12.10. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/961880
I was wrong. 12.04.1 works fine. Moreover 12.04.2 is fine too. And it uses the same kernel version as 13.04 (3.5.0-17 vs 3.5.0-23). Diff shows not so many changes:
* usb otg unset
* amd_iommu_v2 added as module (virtualization)
* drm_i915_hsw added as module (intel graphics driver)
It's time to build the kernel, I guess
12.04.3 is broken. It uses 3.8.* branch of kernel, the same as 13.04. Something happened between 3.5 and 3.8. The problem is official kernels of these versions mysteriously disappeared from the wild and there no ubuntu distros with them. But I see the links to mainline ppa everywhere.
I give up. I'm reading the kernel's change logs starting with 3.6 and sloooowly downloading #ghostbsd. I hope the fixed an installer (they said it works already)
Patient: Acer Aspire 5742G
CPU: Intel Core i3 380M
Video: AMD 6370M/radeon (replaced)
Symptoms: backlight brightness level is being dropped to the lowest after every reboot starting with linux kernel between 3.6 and 3.8.
Diagnosis: backlight or video driver malfunction.
Which one is broken? This is the question
@replikvlt Yep. Is is not the only option I tried. The problem is that backlight is being dropped down not on load but on shutdown. I mean the display is dim even at the bios screen
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