No Audio on Headphone Jack on Sylvania G

[aastaneh]

I recently purchased a Sylvania G Netbook (which is pretty much a rebranded cloudbook)

Installed Xubuntu on it, works nicely, except one detail.

Sound works through the laptop speakers, however when I plug in my headphones I don't hear a thing. I've googled this problem however I haven't seen anything with this type of hardware before.

Here's some hardware information that may be useful:

root@ronin:~# lspci | grep Audio
02:01.0 Audio device: VIA Technologies, Inc. VIA High Definition Audio Controller (rev 10)

root@ronin:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: VT82xx [HDA VIA VT82xx], device 0: VT1708 Analog [VT1708 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0

root@ronin:~# lsmod
Module Size Used by
via 43648 2
drm 82452 3 via
rfcomm 41744 2
l2cap 25728 13 rfcomm
bluetooth 61156 4 rfcomm,l2cap
ppdev 10372 0
dock 11280 0
container 5632 0
sbs 15112 0
sbshc 7680 1 sbs
cpufreq_powersave 2688 0
cpufreq_conservative 8712 0
cpufreq_ondemand 9740 0
cpufreq_userspace 5284 0
cpufreq_stats 7104 0
freq_table 5536 2 cpufreq_ondemand,cpufreq_stats
iptable_filter 3840 0
ip_tables 14820 1 iptable_filter
x_tables 16132 1 ip_tables
ipv6 267780 8
parport_pc 36260 0
lp 12324 0
parport 37832 3 ppdev,parport_pc,lp
loop 18948 0
joydev 13120 0
af_packet 23812 2
snd_hda_intel 344728 0
snd_pcm_oss 42144 0
snd_mixer_oss 17920 1 snd_pcm_oss
snd_pcm 78596 2 snd_hda_intel,snd_pcm_oss
snd_page_alloc 11400 2 snd_hda_intel,snd_pcm
snd_hwdep 10500 1 snd_hda_intel
arc4 2944 2
ecb 4480 2
blkcipher 8324 1 ecb
snd_seq_dummy 4868 0
evdev 13056 6
snd_seq_oss 35584 0
serio_raw 7940 0
snd_seq_midi 9376 0
rtl8187 36096 0
mac80211 165652 1 rtl8187
snd_rawmidi 25760 1 snd_seq_midi
uvcvideo 58116 0
snd_seq_midi_event 8320 2 snd_seq_oss,snd_seq_midi
psmouse 40336 0
cfg80211 15112 1 mac80211
compat_ioctl32 2304 1 uvcvideo
videodev 29440 1 uvcvideo
v4l1_compat 15492 2 uvcvideo,videodev
v4l2_common 18304 2 uvcvideo,videodev
eeprom_93cx6 3200 1 rtl8187
snd_seq 54224 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_mid i_event
snd_timer 24836 2 snd_pcm,snd_seq
snd_seq_device 9612 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi ,snd_seq
snd 56996 11 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,sn d_hwdep,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_ seq,snd_timer,snd_seq_device
soundcore 8800 1 snd
video 19856 0
output 4736 1 video
pcspkr 4224 0
battery 14212 0
ac 6916 0
button 9232 0
i2c_viapro 9876 0
i2c_core 24832 1 i2c_viapro
shpchp 34452 0
pci_hotplug 30880 1 shpchp
via_agp 11136 1
agpgart 34760 2 drm,via_agp
ext3 136712 1
jbd 48404 1 ext3
mbcache 9600 1 ext3
sg 36880 0
usb_storage 73664 0
libusual 19108 1 usb_storage
sd_mod 30720 3
8139cp 24704 0
8139too 27520 0
mii 6400 2 8139cp,8139too
pata_acpi 8320 0
pata_via 13316 2
ata_generic 8324 0
ehci_hcd 37900 0
uhci_hcd 27024 0
libata 159344 3 pata_acpi,pata_via,ata_generic
usbcore 146028 7 rtl8187,uvcvideo,usb_storage,libusual,ehci_hcd,uhc i_hcd
scsi_mod 151436 4 sg,usb_storage,sd_mod,libata
thermal 16796 0
processor 36872 2 thermal
fan 5636 0
fbcon 42912 0
tileblit 3456 1 fbcon
font 9472 1 fbcon
bitblit 6784 1 fbcon
softcursor 3072 1 bitblit
fuse 50708 1

Any help would be appreciated.

[aastaneh]

Solution Procedure-

1. Download the alsa-drivers source:
ftp://ftp.alsa-project.org/pub/drive...1.0.16.tar.bz2

2. Follow the patching and installation instructions from here:
http://ubuntuforums.org/showthread.php?t=556217

3. Reboot, and use alsamixer to unmute the "Headphones" control and set its volume.

4. Enjoy the now-working headphone jack.

I would hope that the alsa-project developers commit some changes upstream, or I will have to maintain a driver install from source (which is silly for a package-based distribution lauded for it's ease of use).

[guest128]

Sorry to revive an old thread, but I wanted to know if you're talking about the regular Sylvania G, and not the Sylvania G Meso. I just ordered the former with the purpose of using it as a brain for a robot. I've already done the robot thing with Ubuntu, so I was thinking about wiping the HD and throwing Ubuntu on there, but I wanted to make sure that wireless and sound are functional. But any info about the Sylvania G and Ubuntu seems to be talking about the Meso.

I suppose anyone who has installed Ubuntu (or some flavor of it) on the non-Meso Sylvania G would be able to answer my question.

Also, if I wipe gOS off of the HD, will it be hard to setup again if I have to? I've heard something to the effect that the restore disk for the netbook has gOS, but Windows drivers instead of linux drivers. this is a concern.

Thanks for your time
-guest128

[caitlynmaire]

I have the original g. If I were you I'd plan on doing some significant work on the g before being able to use it for much of anything. The hardware is brilliant. The gOS configuration is horrible and leaves you with a crippled machine.

Here are the issues and fixes:

1. It ships with gOS 2.92, a beta with issues. It can be upgraded to gOS 3.0 using an iso on the Sylvania site. You need an external (usb) CD drive to install it.

2. gOS 2.92 comes with a Realtek wireless driver that is the absolute pits. It has very limited range and drops connections. gOS 3.0 does fix this or else you can blacklist the driver and install one that actually works. The gOS 3.0 solution is, in fact, ndiswrapper and a Windows driver. There is another Linux native driver that works but I need to do some more searching to find it again

3. The processor is a 1.2GHz Via C7-M ULV which supports frequency scaling. In gOS 2.92 or 3.0 you have an old 2.6.24.x kernel that doesn't have this support. If you don't install a kernel patch the system comes up underclocked to 600MHz (yes, half speed) and is slow and can't be changed. Once patched powernowd does work well.

4. gOS 2.92 or 3.0 ships with an older proprietary Via Chrome video driver with broken 3D acceleration. Upgrading to the newest open source Via Chrome driver fixes the problem. 3D works well with the new driver.

5. gOS makes their system idiot proof by hiding the terminal and any tools needed to install or upgrade software. You need to edit the .desktop files in /usr/share/applications to reenable Synaptic and gnome-terminal or else create launchers for them. Doing all the Hardy updates doesn't break anything AFAIK.

6. Some apps are poorly configured and open in windows that are too large for the screen resolution.

If you fix all those things then you do have a brilliant little machine. I love mine. I just don't recommend it for anyone who isn't computer savvy.

HTH

[willreed]

I want to thank all of you that started and posted to this thread. I've been searching the forum waiting for someone that

has one of these to make a list such as the above.

I purchased my little g netbook in July and I've been relatively content with it. I've burned gOS 3 to a cd. However I've

been using it without installing it on my little g book because of some of the problems mentioned above.

What I need to ask is this.

Is it possible to apply all these patches/fixes then recompile the kernal and burn a new ISO? The reason I ask is that I'm

not up on how an ISO file structure is compressed and even if I had a chance at replacing the kernal that's offered with

the ISO download with one with the list of fixes you've mentioned above.

I've installed Linux on dozens of machines since 1998 but in the last few years I've been spoiled by using (nearly hands off) Linux installs.

I would be thankful for any help on this.

I want to add that this is the g netbook pre Meso

[intrepid7]

I updated my gnetbook to gOS 3.0 , everything is pretty smooth but I have been trying to fix the freq scaling issue. I follow the directions here:http://www.a110wiki.de/wiki/CPU

$ wget http://www.a110wiki.de/wiki/images/6...ckport.tar.bz2
$ tar xfvj Cpufreq-2.6.25_backport.tar.bz2
$ cd cpufreq
$ make

However, when I try to make the module I get a slew of returned errors, ie:
mpdion@gnetbook:~/cpufreq$ make
make -C /lib/modules/`uname -r`/build M=`pwd` modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.24.3'
/usr/src/linux-headers-2.6.24.3/arch/x86/Makefile:15: /usr/src/linux-headers-2.6.24.3/arch/x86/Makefile_32: No such file or directory
CC [M] /home/mpdion/cpufreq/e_powersaver.o
In file included from include/linux/kernel.h:11,
from /home/mpdion/cpufreq/e_powersaver.c:9:
include/linux/linkage.h:4:25: error: asm/linkage.h: No such file or directory
In file included from include/linux/posix_types.h:47,
from include/linux/types.h:11,
from include/linux/kernel.h:13,
.
.
.
and so on. I have installed the build-essentials package. Has anyone had this problem, any fixes? Thanks

[sixteenkats]

[deleted by author]

[zerker2000]

I have the same problem, though I installed #! instead of pOS 3 since I couldn't find an external cd drive. I am currently looking for a solution.