Hello Roman, On Wed, Nov 19, 2025 at 08:23:31PM +0200, Roman Savochenko wrote: > 19.11.25 19:05, Uwe Kleine-König: > > On Wed, Nov 12, 2025 at 06:19:07PM +0200, Roman Savochenko wrote: > > > 12.11.25 17:03, Christian König: > > > > On 11/12/25 15:28, Roman Savochenko wrote: > > > > > 12.11.25 13:14, Uwe Kleine-König: > > > > > > > On my hardware that doesn't work and there is no specific. > > > > > > > > > > > > > > Now just I set "radeon.dpm=1", I got immediately restart with > > > > > > > disabling USB, > > > > > > > so I have needed to restart for successful download with > > > > > > > "radeon.dpm=0". > > > > > > Can you try a different monitor? > > > > > I have only one, connected through DVI, and there is no problem on > > > > > Linux Kernel 5. > > > > Kernel 5 what? E.g. which concrete version number? (output of uname -a). > > > user@debian:~$ cat /proc/version > > > > > > Linux version 5.10.0-32-amd64 ([email protected]) (gcc-10 > > > (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) > > > 2.35.2) > > > #1 SMP Debian 5.10.223-1 (2024-08-10) > > > > > > > > > Can you try which Debian kernel was the last one working fine > > > > > > respective > > > > > > the first being broken in this regard? You can find all kernels on > > > > > > https://snapshot.debian.org/. Please ask if it's unclear how to do > > > > > > that. > > > > > I can try all kernels in Debian starting 7 and finishing 13, but I > > > > > have traced that before and the problem reproduction started from > > > > > Debian 9, terminated on Debian 11 and renewed on Debian 12. > > Not sure I follow. Does that mean that Debian 9, Debian 10, Debian 12 > > and Debian 13 show the symptom and Debian 11 doesn't? > > Yes, and in kernels that is 4, 6 show the symptom and 3, 5 don't.
I think this statement isn't helpful unless you're saying that Linux 5.19 was good and 6.0 was bad. Kernel versions started with 5 between 2019-03-03 and 2022-07-31, not taking stable releases into account. And there are 294457 commits in that range (`git rev-list v5.0..v5.19 | wc -l`). So "kernel 5" and "kernel 6" is a bit too fuzzy to work with. > > In that case the interesting interval is 5.10 .. 6.1. If you could > > pinpoint the oldest kernel image package that shows the symptoms that > > would be great. > > I can show only the last official kernels in the correspond Debian > distributive due to their applied in the Live Disks! > > That is, I have recorded a video when the problem reproduction started, that > is Debian 9 with kernel 4.9. Nobody in the OSS community is interested in 4.9 any more. This kernel version is EOL since January 2023. Can you please confirm that 5.19.x (e.g. a kernel package from https://snapshot.debian.org/package/linux/5.19.11-1/) works fine and 6.0.x (e.g. https://snapshot.debian.org/package/linux/6.0.12-1/) doesn't? (Or a similar statement with other consecutive mainline versions.) Note that even that might not be enough to spot the problem and you might have to get your hands dirty then and compile development kernels and test them. Best regards Uwe
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