Hello, On Thu, Aug 15, 2024 at 03:38:16PM -0700, Mark Wittenberg wrote: > On Tue, 6 Aug 2024 08:14:55 +0100 Ralph Martin <MartinRR@cardiff.ac.uk> > wrote: > > I can confirm this issue on an LG Gram 16Z90Q laptop. A further side > > effect is that keyboard backlight control is affected. > > On my LG 17Z90R-K.ADS9U1 (running Linux Mint 21.3) the TLP STOP limit worked > up through and including kernel 6.9.6, and failed to work on kernel 6.9.9. > I haven't tested on 6.9.7 or 6.9.8 but as the OP saw the failure on 6.9.7 > (or maybe 6.9.8) I would guess that the problem began in 6.9.7. I can test > 6.9.7 and 6.9.8 if that would be helpful. The keyboard backlighting appears > to be functioning on 6.9.9. the following things would be helpful to debug this issue: - There are newer kernels packages in trixie, unstable and experimental in the meantime. Do these happen to fix the issue? - The information if 6.9.7 is good or bad in this respect - boot log from both a working and a broken setup from the same machine - A git bisection between 6.9.6 and 6.9.8 If you can provide any of these, please do so. Best regards Uwe
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