On Wed, Apr 1, 2015 at 11:19 PM, Andy Lutomirski <[email protected]> wrote: > On Wed, Apr 1, 2015 at 1:53 PM, Kay Sievers <[email protected]> wrote: >> On Wed, Apr 1, 2015 at 10:45 PM, Andy Lutomirski <[email protected]> wrote: >>> On Apr 1, 2015 12:56 PM, "Kay Sievers" <[email protected]> wrote: >> >>>> Do you have an idea why the VM does not accept the custom font? If >>>> that is something obvious, and we can detect it, we could make >>>> vconsole-setup check for it. But then again, fixing setfont seems like >>>> the obvious fix here. >>> >>> I assume it's because the VM has no graphical console at all. >> >> We check the existence of the corresponding /dev/vcs%i, to check if >> the tty is allocated where we want to apply the font to. Do these >> devices exist on the running machine? > > Yes: > > # ls /dev/vcs* > /dev/vcs /dev/vcs2 /dev/vcs4 /dev/vcsa1 /dev/vcsa3 > /dev/vcs1 /dev/vcs3 /dev/vcsa /dev/vcsa2 /dev/vcsa4 > > Looking at the code, the vc_screen.c code seems to create those > devices unconditionally.
They should only get created when something accesses the corresponding tty. deallocvt(1) can kill unused ones and the device nodes should disappear. >> And what does this say? >> grep . /sys/class/tty/tty0/active /sys/class/tty/console/active > > # grep . /sys/class/tty/tty0/active /sys/class/tty/console/active > /sys/class/tty/tty0/active:tty1 > /sys/class/tty/console/active:ttyS0 > > vcs1 has, roughly: > > early console in decompress_kernel > Decompressing Linux... Parsing ELF... done. > Booting the kernel. > > Now I'm wondering how that buffer came to be. > > In any event, some tracing of the code suggests that I have > vga_video_type == VIDEO_TYPE_CGA, and that fails "if (vga_video_type < > VIDEO_TYPE_EGAM)" in vgacon_font_set. > > Indeed, /proc/ioports has: > > 03d4-03d5 : cga > > and dmesg says: > > [ 0.000000] Console: colour *CGA 80x25 > > I don't see this information in sysfs anywhere. Perhaps checking for > an active console and detecting -EINVAL from vgacon_font_get would > work. Hmm, yeah, maybe we could try one of the font-related ioctls to find out if the driver supports that before we spawn setfont. > /proc/fb is empty on this VM, so maybe that would help. Grr, this > stuff is really old and crufty. > > The offending qemu command line args appear to be -vga none -display > none. I assume I have "CGA" because it's the fallback case in > vgacon.c if nothing matches. Hehe, blast from the past. :) If you give kvm a VGA device, it all works fine? Kay _______________________________________________ systemd-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/systemd-devel
