On יום ראשון, 15 בינואר 2017 19:44:36 IST Felix Miata wrote: > Jimmy Johnson composed on 2017-01-15 13:43 (UTC-0800): > > The 965 is only using "ro", the 4.8 and 4.9 kernel are installed but not > > working. The 4.7.0-1 kernel works swell, if the newer kernel's are not > > working later on I will do something else, like import another kernel > > that will be updated. > > ro has no remaining effect long before starting Xorg or sddm are attempted. > From the man page: > > ro [KNL] Mount root device read-only on boot > > > The ATI is basically working with the 4.8.0-2 kernel and with the 4.9 > > kernel if I assist it by pressing key's on the keyboard or it dies and > > it's just using "ro". > > Is Plymouth both required and installed on your systems? If installed and > not required for your configuration, try disabling it, or removing it > entirely. > > The Nvidia has to use "ro nomodeset nouveau.modeset=0" and is working > > swell with the 4.8.0-2 kernel but dies with the 4.9 kernel. > > It seems as though you are equating the FOSS Xorg driver named modesetting > with kernel modesetting (KMS). They are not the same thing. > > The proprietary NVidia Xorg driver, unless something has changed lately that > I'm unaware of, requires that KMS be disabled (exclusively via kernel > cmdline???, such as nomodeset or *.modeset=0) in order for it to function. > AFIAK, as I've never tried using it, AMD's proprietary drivers require the > same. > > Disabling KMS via kernel cmdline disables these FOSS Xorg drivers: > > Intel > AMD/ATI/Radeon > Nouveau >
I used to use the nomodeset. I also tested for it and brute-force switched between Nouveau and Nvidia legacy based on it. I have not had nomodeset since that "trick" (copying one or other Xorg.conf) became deprecated and I did a new 64-bit install. With no appends on kernel command line, Xorg works with either driver until I try to use KDE, Kwin, compositing. Then Nouveau will hang up, Nvidia legacy 304 will have missing window decorations.
