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I was on kernel 4.18.20 and wanted to upgrade to 4.19. So, I visited the ubuntu.kernel.com and found that 4.19.118 to be latest one. I can understand the low-latency kernel versions but I couldn't understand the generic and non-generic linux-headers. Below I am attaching a screenshot. A bit of explanation will be much appreciated.

screenshot from https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.118/

sam
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  • What OS/release are you using? Both 4.18 and 4.19 are EOL in the Ubuntu amd64/i386 universe? (security patches are not back-ported to those kernels; the last backport to 4.18 was mid-2019; 4.19 never went beyond testing) – guiverc Apr 27 '20 at 08:09
  • I am using 18.04 LTS and post kernel 4.20 my laptop cannot detect the pch_cannonlake and WiFi sensors. I use to have occasional lags and battery backup is horrible. Although nvidia graphic card is detected but upon issuing the command sensors-detect for lm-sensors, my laptop reboots after sometime. – sam Apr 27 '20 at 08:13
  • I would suggest using the non-HWE or GA kernel 4.15 which has all security patches of later kernels back-ported to it, rather than unsupported kernels you have to maintain yourself. I wouldn't recommend un-patched/EOL kernels. – guiverc Apr 27 '20 at 08:16
  • @guiverc Could you please confirm if this is the link regarding the kernel https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15.18/ – sam Apr 27 '20 at 09:06
  • The patched 4.15 kernel doesn't require the use of PPAs; it's found in normal sources and the linux-generic package. If you want the proposed (testing features) just enabled the -proposed repo (fixes are first tested via PPA, once they have a positive test they go to proposed) – guiverc Apr 27 '20 at 11:31

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