[alsa-devel] Model quirks and duplicate device IDs
Hi,
A user reports that toshiba model is working fine with its laptop(Subsystem: 152d:0763). I checked the patch_realtek file and saw that the exact ID was mapped against ALC268_ACER 2 years ago for ALSA issue #3343.
Both laptops are not-so-popular local brands and checking against 152d points to:
152d QUANTA Computer Inc
according to the pci.ids database.
So how should we act on those situations seen that we can't match against DMI data(which would possibly be crap on those laptops)?
Thanks, Ozan Caglayan
At Mon, 06 Jul 2009 21:56:57 +0300, Ozan Çağlayan wrote:
Hi,
A user reports that toshiba model is working fine with its laptop(Subsystem: 152d:0763). I checked the patch_realtek file and saw that the exact ID was mapped against ALC268_ACER 2 years ago for ALSA issue #3343.
Both laptops are not-so-popular local brands and checking against 152d points to:
152d QUANTA Computer Inc
according to the pci.ids database.
So how should we act on those situations seen that we can't match against DMI data(which would possibly be crap on those laptops)?
We can check the codec SSID as well. If both PCI and codec SSID are identical, it's very likely that these are same models, but just a wrong model was chosen, or the model was changed during development and doesn't match properly any more.
Takashi
Takashi Iwai wrote:
So how should we act on those situations seen that we can't match against DMI data(which would possibly be crap on those laptops)?
We can check the codec SSID as well. If both PCI and codec SSID are identical, it's very likely that these are same models, but just a wrong model was chosen, or the model was changed during development and doesn't match properly any more.
This is the one which is reported to work well with model=toshiba:
PCI SSID: 152d:0763 Codec: Realtek ALC268 Codec SSID: 0x152d0763
More info at: http://www.alsa-project.org/db/?f=83c7d7cd0beec0ae4c926f162a31e4df430c20b5
This is the one reported at which is mapped to model=acer in 2007: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3343
# cat /proc/asound/card0/codec#0 Codec: Realtek ALC268 Address: 0 Vendor Id: 0x10ec0268 Subsystem Id: 0x152d0763
$ lspci -nv 00:00.0 0600: 8086:2a00 (rev 03) Subsystem: 152d:0763 Flags: bus master, fast devsel, latency 0 Capabilities: <access denied>
participants (2)
-
Ozan Çağlayan -
Takashi Iwai