On 161215-19:31+0000, KatolaZ wrote: > On Thu, Dec 15, 2016 at 08:14:25PM +0100, Miroslav Rovis wrote: > > [cut] > > > > > It's related with ATI cards, but with the newer kernel than yours, so... > > > > (And there are some issues with some Nvidia cards on Gentoo users ML too.) > > > > Certainly, blank screen can indicate problems with graphics card... > > > > If this is the case, using a lowres vga mode should solve the > problem. It must be possible to pass "vga=ask" to the kernel line, and > get a list of vga mode available. Just select a standard 80x25 > > However, it seems that the boot stops when the kernel tries to > decompress the initrd, so technically speaking the screen is not blank > (the user reported that he could see something before the boot > stopped), so I would probably prefer to think that it's an issue with > initrd... > > My2Cents > > KatolaZ
May perfectly be as you write, kind veteran Unix Admin. However, I now remember I did have (well, on Gentoo, but it's the Unix version of Gentoo, not the systemd version, and I remember often issues were similar in Debian-based systems as in Gentoo)... [I now remember I did have] blank screens with kernels 4.8 I think, not the 4.9 ( sys-kernel/gentoo-sources-4.9.0 hangs at boot with blank screen https://bugs.gentoo.org/show_bug.cgi?id=602614 ), so likely it wasn't that issue in that bug, the https://marc.info/?l=gentoo-user&m=148167681011303&w=2 > ... CONFIG_VMAP_STACK... which appears only from the new kernel 4.9 . But the boot didn't appear irregular, just the screen went blank, and I lost all, keyboard, mouse, all, and there was no hard disk flashing at all. What did the > (the user reported that he could see something before the boot > stopped) ? There are 7 or more emails of Emiliano, wasn't able to find it with a quick search. [I now remember I did have] blank screens with kernels 4.8 I think, and the way I dealt with it, was, after resetting the machine, with the hardware button, I unplugged it from the mains, and I let it be still for 5 minutes (or was it more?)... And I was able to get it to boot afterwards. Just worth trying, maybe... Some issues with memory and swap could be overcome that way. -- Miroslav Rovis Zagreb, Croatia http://www.CroatiaFidelis.hr
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