text emails work great, it's html emails that do not :) On Mon, Jan 01, 2018 at 11:12:24PM +0100, Roman Gruber wrote: > I send you my bug because kernel.org bugzilla pointed me here. > > https://bugzilla.kernel.org/show_bug.cgi?id=198329[https://deref-gmx.net/mail/client/HSud2NXiEWY/dereferrer/?redirectUrl=https%3A%2F%2Fbugzilla.kernel.org%2Fshow_bug.cgi%3Fid%3D198329] > > which is the same as > > https://bugs.gentoo.org/643024[https://deref-gmx.net/mail/client/TMVlGHzulI0/dereferrer/?redirectUrl=https%3A%2F%2Fbugs.gentoo.org%2F643024] > > which is described in details by myself here: > > https://www.linuxquestions.org/questions/linux-software-2/cups-no-printer-found-root-login-not-accepted-the-second-time-4175620647/[https://deref-gmx.net/mail/client/XMcEcZQi51M/dereferrer/?redirectUrl=https%3A%2F%2Fwww.linuxquestions.org%2Fquestions%2Flinux-software-2%2Fcups-no-printer-found-root-login-not-accepted-the-second-time-4175620647%2F] > > > Details can be asked please in personal messages in linuxquestion topic. > > -- > > Summary kernel 4.14 breaks cups functionality in regards of USB > Printer support on gentoo linux. > > A test kernel with the same kernel config with antique 4.1.x kernel on > gentoo, oldest stable available kernel on gentoo, as described on > kernel.org bugzilla, yielded in instantly working printer. But broken > wifi which seems to be more a changed symbol of the wifi module over > the kernel branches. > Root cause faulty kernel usb stack, as the only component exchanged > was the kernel to get it going. > > a test installation of newst linux mint, on a very old notebook MSI > Cr-700, + providing unzipped ppd file for my business printer > instantly made it working. linux mint uses outdated old software of > course. the old cups version is not in the gentoo portrage tree > anymore. kernel 4.10 afaik is also dated. > > Workaround now, bootup antique 4.1.x kernels to print something. > kernel 4.1.x is not an option as i need those ext4 patches which were > later introduced. Use another notebook with fresh linux mint, but > outdated software packages and outdated kernel. This is odd, in that for printers, USB is just a "pass-through" pipe to the hardware, the kernel should not be an issue here. What are the kernel log messages you get when you plug in the printer on the newer kernel version? Does it give you any clue as to things going wrong? Can you post them here please? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
