My system comes up with a blank console after hardware suspend and resume.
The cursor is still visible, but no text is there. Switching to another
console and back fixes it. Vesafb is enabled with vga=791.
Hardware is a Toshiba Satellite 4100XCDT notebook with Trident Cyber9525DVD
graphics chipset, but this also can be reproduced with Dell notebooks.
I just verified the problem exists still with 2.4.20-rc1.
A binary search turned up 2.4.18-pre7 as the kernel which broke,
specifically the changes made to apm.c back then.
Relevant part of .config:
CONFIG_PM=y
# CONFIG_ACPI is not set
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
CONFIG_APM_DO_ENABLE=y
CONFIG_APM_CPU_IDLE=y
CONFIG_APM_DISPLAY_BLANK=y
# CONFIG_APM_RTC_IS_GMT is not set
CONFIG_APM_ALLOW_INTS=y
# CONFIG_APM_REAL_MODE_POWER_OFF is not set
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_VGA_CONSOLE=y
CONFIG_VIDEO_SELECT=y
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FB_CYBER2000=m
CONFIG_FB_VESA=y
CONFIG_FB_VGA16=m
CONFIG_VIDEO_SELECT=y
CONFIG_FB_TRIDENT=m
CONFIG_FBCON_ADVANCED=y
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB16=y
CONFIG_FBCON_CFB24=y
CONFIG_FBCON_CFB32=y
CONFIG_FBCON_VGA_PLANES=m
CONFIG_FBCON_VGA=m
CONFIG_FBCON_HGA=m
CONFIG_FBCON_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
/sbin/lsmod
Module Size Used by Not tainted
tulip 38016 1
ds 6368 2
yenta_socket 8704 2
pcmcia_core 31872 0 [ds yenta_socket]
nls_iso8859-1 2880 1 (autoclean)
nls_cp437 4384 1 (autoclean)
vfat 9244 1 (autoclean)
fat 28888 0 (autoclean) [vfat]
relevant part of dmesg:
apm: BIOS version 1.2 Flags 0x02 (Driver version 1.16)
Starting kswapd
VFS: Diskquotas version dquot_6.4.0 initialized
vesafb: framebuffer at 0xff800000, mapped to 0xcc80d000, size 2560k
vesafb: mode is 1024x768x16, linelength=2048, pages=0
vesafb: protected mode interface info at c000:6d44
vesafb: scrolling: redraw
vesafb: directcolor: size=0:5:6:5, shift=0:11:5:0
Console: switching to colour frame buffer device 128x48
fb0: VESA VGA frame buffer device
lspci -v
00:00.0 Host bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX Host bridge
(AGP disabled) (rev 03)
Subsystem: Toshiba America Info Systems: Unknown device 0001
Flags: bus master, medium devsel, latency 64
Memory at e0000000 (32-bit, prefetchable) [size=256M]
00:02.0 CardBus bridge: Toshiba America Info Systems ToPIC97 (rev 05)
Subsystem: Toshiba America Info Systems: Unknown device 0001
Flags: bus master, slow devsel, latency 0, IRQ 11
Memory at 10000000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=14, subordinate=14, sec-latency=0
Memory window 0: 10400000-107ff000 (prefetchable)
Memory window 1: 10800000-10bff000
I/O window 0: 00004000-000040ff
I/O window 1: 00004400-000044ff
16-bit legacy interface ports at 0001
00:02.1 CardBus bridge: Toshiba America Info Systems ToPIC97 (rev 05)
Subsystem: Toshiba America Info Systems: Unknown device 0001
Flags: bus master, slow devsel, latency 0, IRQ 11
Memory at 10001000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=15, subordinate=15, sec-latency=0
Memory window 0: 10c00000-10fff000 (prefetchable)
Memory window 1: 11000000-113ff000
I/O window 0: 00004800-000048ff
I/O window 1: 00004c00-00004cff
16-bit legacy interface ports at 0001
00:04.0 VGA compatible controller: Trident Microsystems Cyber 9525 (rev 49)
(prog-if 00 [VGA])
Subsystem: Toshiba America Info Systems: Unknown device 0001
Flags: bus master, 66Mhz, medium devsel, latency 8, IRQ 11
Memory at ff800000 (32-bit, non-prefetchable) [size=4M]
Memory at ff7e0000 (32-bit, non-prefetchable) [size=128K]
Memory at ff000000 (32-bit, non-prefetchable) [size=4M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [80] AGP version 1.0
Capabilities: [90] Power Management version 1
00:05.0 Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ISA (rev 02)
Flags: bus master, medium devsel, latency 0
00:05.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01) (prog-if
80 [Master])
Flags: bus master, medium devsel, latency 64
I/O ports at 1000 [size=16]
00:05.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 01)
(prog-if 00 [UHCI])
Flags: bus master, medium devsel, latency 64, IRQ 11
I/O ports at ffe0 [size=32]
00:05.3 Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ACPI (rev 02)
Flags: medium devsel, IRQ 9
00:07.0 Communication controller: Lucent Microelectronics 56k WinModem (rev 01)
Subsystem: Toshiba America Info Systems Internal V.90 Modem
Flags: bus master, medium devsel, latency 0, IRQ 3
Memory at ffefff00 (32-bit, non-prefetchable) [size=256]
I/O ports at 02f8 [size=8]
I/O ports at 1c00 [size=256]
Capabilities: [f8] Power Management version 2
00:0a.0 Communication controller: Toshiba America Info Systems FIR Port (rev 23)
Subsystem: Toshiba America Info Systems: Unknown device 0001
Flags: bus master, slow devsel, latency 64, IRQ 11
I/O ports at ff80 [size=32]
00:0c.0 Multimedia audio controller: ESS Technology ES1978 Maestro 2E (rev 10)
Subsystem: Toshiba America Info Systems ES1978 Maestro-2E Audiodrive
Flags: bus master, medium devsel, latency 64, IRQ 11
I/O ports at fc00 [size=256]
Capabilities: [c0] Power Management version 2
15:00.0 Ethernet controller: Abocom Systems Inc: Unknown device ab02 (rev 11)
Subsystem: Abocom Systems Inc: Unknown device ab02
Flags: bus master, medium devsel, latency 64, IRQ 11
I/O ports at 4800 [size=256]
Memory at 11000000 (32-bit, non-prefetchable) [size=1K]
Expansion ROM at 10c00000 [size=128K]
Capabilities: [c0] Power Management version 2
If you need any other info, please tell me.
Thanks for your help
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