[Openchrome-users] Sylvania (VX700) - black screen at 'modprobe viafb', problem resuming
Tzafrir Cohen
tzafrir
Sun Nov 20 14:16:01 PST 2011
Hi,
I'm not really sure if this is the right place, as I suspect my issues
are on the kernel-level, but I figure this would be a good start.
I'm playing with a Sylvania netbook based on VIA C7-M CPU with a
VX700-based display adapter (see lspci and such below). It originally
had a system called gOS which I didn't really like. I installed Debian
Testing on it. It is currently running an up-to-date system with the
latest kernel from Debian Unstable. Though I also had similar issues
with various other Debian kernels (2.6.32-5-686 from Stable, 2.6.32,
3.0) and with self-compiled 3.0.8 and 3.2.0-rc2.
When viafb is loaded the screen blacks-out immediately. If I disable
loading it, I manage to get a display working. OpenChrome seems to be
used in X. Not good enough for Gnome3, but it works.
However if I try to suspend and resume, the system resumes OK, but the
display is messed up. pm-suspend --quirk-s3-bios seems to work around
it.
Occasionally the system just hangs completely. I have no idea what makes
it hang. I ran it with memtest86+ for a number of days and no problem
was found. I see no aparant error message on the console. I tried
running a network console a few times and got no useful output.
I'm really at loss on how to debug/fix this.
$ uname -a
Linux vanmojo 3.1.0-1-686-pae #1 SMP Mon Nov 14 08:24:20 UTC 2011 i686 GNU/Linux
$ lspci -nn
00:00.0 Host bridge [0600]: VIA Technologies, Inc. CX700/VX700 Host Bridge [1106:0324] (rev 10)
00:00.1 Host bridge [0600]: VIA Technologies, Inc. CX700/VX700 Host Bridge [1106:1324]
00:00.2 Host bridge [0600]: VIA Technologies, Inc. CX700/VX700 Host Bridge [1106:2324]
00:00.3 Host bridge [0600]: VIA Technologies, Inc. CX700/VX700 Host Bridge [1106:3324]
00:00.4 Host bridge [0600]: VIA Technologies, Inc. CX700/VX700 Host Bridge [1106:4324]
00:00.7 Host bridge [0600]: VIA Technologies, Inc. CX700/VX700 Host Bridge [1106:7324]
00:01.0 PCI bridge [0604]: VIA Technologies, Inc. VT8237/VX700 PCI Bridge [1106:b198]
00:0f.0 IDE interface [0101]: VIA Technologies, Inc. CX700/VX700 RAID Controller [1106:0581]
00:10.0 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 90)
00:10.1 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 90)
00:10.2 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 90)
00:10.4 USB Controller [0c03]: VIA Technologies, Inc. USB 2.0 [1106:3104] (rev 90)
00:11.0 ISA bridge [0601]: VIA Technologies, Inc. CX700/VX700 PCI to ISA Bridge [1106:8324]
00:11.7 Host bridge [0600]: VIA Technologies, Inc. CX700/VX700 Internal Module Bus [1106:324e]
00:13.0 PCI bridge [0604]: VIA Technologies, Inc. CX700/VX700 Host Bridge [1106:324b]
00:13.1 PCI bridge [0604]: VIA Technologies, Inc. CX700/VX700 PCI to PCI Bridge [1106:324a]
01:00.0 VGA compatible controller [0300]: VIA Technologies, Inc. CX700/VX700 [S3 UniChrome Pro] [1106:3157] (rev 03)
02:01.0 Audio device [0403]: VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) [1106:3288] (rev 10)
03:09.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ [10ec:8139] (rev 10)
$ cat /proc/cpuinfo
processor : 0
vendor_id : CentaurHauls
cpu family : 6
model : 13
model name : VIA C7-M Processor 1200MHz
stepping : 0
cpu MHz : 400.000
cache size : 128 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
cmov pat clflush acpi mmx fxsr sse sse2 tm nx up pni est tm2 xtpr rng
rng_en ace ace_en ace2 ace2_en phe phe_en pmm pmm_en
bogomips : 799.93
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 32 bits virtual
power management:
$ lsmod
Module Size Used by
acpi_cpufreq 12807 1
mperf 12421 1 acpi_cpufreq
cpufreq_powersave 12422 0
cpufreq_stats 12762 0
cpufreq_userspace 12520 0
cpufreq_conservative 12987 0
bnep 17288 2
rfcomm 28564 0
bluetooth 103666 10 bnep,rfcomm
crc16 12327 1 bluetooth
via 34703 2
drm 129839 3 via
fuse 52153 1
loop 17804 0
i2c_algo_bit 12713 0
snd_hda_codec_via 32166 1
snd_hda_intel 21725 2
snd_hda_codec 58429 2 snd_hda_codec_via,snd_hda_intel
snd_hwdep 12943 1 snd_hda_codec
arc4 12418 2
joydev 17010 0
snd_pcm 53258 2 snd_hda_intel,snd_hda_codec
snd_timer 22356 1 snd_pcm
snd 38551 10 snd_hda_codec_via,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore 12921 1 snd
i2c_viapro 12451 0
rtl8187 30849 0
evdev 17225 12
snd_page_alloc 12867 2 snd_hda_intel,snd_pcm
psmouse 46143 0
shpchp 26717 0
uvcvideo 56932 0
mac80211 166120 1 rtl8187
videodev 61627 1 uvcvideo
cfg80211 113073 2 rtl8187,mac80211
pci_hotplug 26600 1 shpchp
media 13692 2 uvcvideo,videodev
rfkill 18516 3 bluetooth,cfg80211
eeprom_93cx6 12423 1 rtl8187
pcspkr 12515 0
serio_raw 12738 0
i2c_core 19116 4 drm,i2c_algo_bit,i2c_viapro,videodev
video 17412 0
battery 12957 0
processor 27389 2 acpi_cpufreq
ac 12552 0
button 12817 0
power_supply 13283 2 battery,ac
ext3 138178 1
jbd 47307 1 ext3
mbcache 12897 1 ext3
ums_realtek 12961 0
usb_storage 35183 1 ums_realtek
uas 13096 0
sg 21476 0
sd_mod 35425 3
crc_t10dif 12332 1 sd_mod
ata_generic 12439 0
pata_via 12733 2
libata 124945 2 ata_generic,pata_via
8139too 22028 0
8139cp 22212 0
mii 12595 2 8139too,8139cp
uhci_hcd 22337 0
ehci_hcd 35509 0
usbcore 100005 8 rtl8187,uvcvideo,ums_realtek,usb_storage,uas,uhci_hcd,ehci_hcd
scsi_mod 135128 5 usb_storage,uas,sg,sd_mod,libata
fan 12594 0
thermal 13103 0
thermal_sys 17752 4 video,processor,fan,thermal
$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter
Bus 001 Device 003: ID 5986:0101 Acer, Inc USB2.0 Camera
Bus 001 Device 004: ID 0bda:0158 Realtek Semiconductor Corp. USB 2.0 multicard reader
--
Tzafrir Cohen | tzafrir at jabber.org | VIM is
http://tzafrir.org.il | | a Mutt's
tzafrir at cohens.org.il | | best
tzafrir at debian.org | | friend
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