2014-05-09 18:48 GMT+09:00 David Demelier <demelier.da...@gmail.com>:
> On 08/05/2014 17:09, Ed Maste wrote:
>> On 8 May 2014 04:16, David Demelier <demelier.da...@gmail.com> wrote:
>>> Hi there,
>>> I'm currently trying vt(9) on a CURRENT kernel (only the kernel not the
>>> base). I have very small bugs, not really serious. I'm currently using
>>> the
>>> radeon KMS driver.

>>> * When I don't use the native resolution (i.e the radeon firmwares are
>>> not
>>> loaded) switching from a tty to another results sometimes in a black
>>> screen
>>> when only some colors are displayed. This does not seems to appear when
>>> the
>>> native resolution is set.
>> Can you describe the corruption in some more detail, or share a
>> picture of it?  I haven't observed something like this with stock vt,
>> and the vt_vga driver.

I also have similar display corruption when I switch between ttys.
The monitor sometime become black screen with only cursor displayed,
or sometimes get messed like this picture:

Toggling between ttys a few times get things normal, so it is not
really a problem.
I see it on current r265145 and stable/10 r265146.

the (head of) dmesg for the PC running stable/10 is:

Copyright (c) 1992-2014 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 10.0-STABLE #28 r265146: Thu May  8 00:46:23 JST 2014
    root@:/usr/obj/usr/src/sys/OIKUMENE i386
FreeBSD clang version 3.4 (tags/RELEASE_34/final 197956) 20140216
CPU: Intel(R) Atom(TM) CPU N270   @ 1.60GHz (1608.03-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x106c2  Family = 0x6  Model = 0x1c
Stepping = 2
  AMD Features=0x100000<NX>
  AMD Features2=0x1<LAHF>
  TSC: P-state invariant, performance statistics
real memory  = 2147483648 (2048 MB)
avail memory = 2081185792 (1984 MB)
Event timer "LAPIC" quality 400
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
FreeBSD/SMP: 1 package(s) x 1 core(s) x 2 HTT threads
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP/HT): APIC ID:  1
WARNING: VIMAGE (virtualized network stack) is a highly experimental feature.
ACPI BIOS Warning (bug): Optional FADT field Pm2ControlBlock has zero
address or length: 0x0000000000000820/0x0 (20130823/tbfadt-630)
ACPI BIOS Warning (bug): Invalid length for FADT/Pm2ControlBlock: 0,
using default 8 (20130823/tbfadt-682)
ioapic0: Changing APIC ID to 2
ioapic0 <Version 2.0> irqs 0-23 on motherboard
random: <Software, Yarrow> initialized
kbd0 at kbdmux0
acpi0: <A_M_I_ OEMXSDT> on motherboard
acpi0: Power Button (fixed)
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, 7f700000 (3) failed
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
attimer0: <AT timer> port 0x40-0x43 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
atrtc0: <AT realtime clock> port 0x70-0x71 irq 8 on acpi0
Event timer "RTC" frequency 32768 Hz quality 0
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 950
Event timer "HPET" frequency 14318180 Hz quality 450
Event timer "HPET1" frequency 14318180 Hz quality 440
Event timer "HPET2" frequency 14318180 Hz quality 440
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0xec80-0xec87 mem
0xfeb80000-0xfebfffff,0xd0000000-0xdfffffff,0xfeb40000-0xfeb7ffff irq
16 at device 2.0 on pci0
agp0: <Intel 945GME SVGA controller> on vgapci0
agp0: aperture size is 256M, detected 7932k stolen memory
vgapci0: Boot video device
vgapci1: <VGA-compatible display> mem 0xfea80000-0xfeafffff at device
2.1 on pci0
hdac0: <Intel 82801G HDA Controller> mem 0xfeb38000-0xfeb3bfff irq 16
at device 27.0 on pci0
pcib1: <ACPI PCI-PCI bridge> irq 16 at device 28.0 on pci0
pci4: <ACPI PCI bus> on pcib1
re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port
0xdc00-0xdcff mem 0xfe8ff000-0xfe8fffff,0xbfef0000-0xbfefffff irq 16
at device 0.0 on pci4
re0: Using 1 MSI-X message
re0: Chip rev. 0x3c000000
re0: MAC rev. 0x00400000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX,
100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master,
1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow,
1000baseT-FDX-flow-master, auto, auto-flow
re0: Ethernet address: 00:23:54:c6:c1:12
pcib2: <ACPI PCI-PCI bridge> irq 17 at device 28.1 on pci0
pci3: <ACPI PCI bus> on pcib2
ral0: <Ralink Technology RT2790> mem 0xfe7f0000-0xfe7fffff irq 17 at
device 0.0 on pci3

the PC running current is similar, for it is a netbook with an Atom CPU.
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