Bug 23334
| Summary: | I815 CD Audio problem | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Dan Taylor <daniel_a_taylor> |
| Component: | kernel | Assignee: | Doug Ledford <dledford> |
| Status: | CLOSED NOTABUG | QA Contact: | David Lawrence <dkl> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.1 | CC: | hp, mick_tantasirikorn, sopwith, todd_adams |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2001-03-22 04:29:09 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
Dan Taylor
2001-01-04 17:53:37 UTC
Adding lspci info per request: -------------------------------- 00:00.0 Host bridge: Intel Corporation 82820 820 (Camino) Chipset Host Bridge (MCH) (rev 03) Subsystem: Dell Computer Corporation: Unknown device 0095 Flags: bus master, fast devsel, latency 0 Memory at f0000000 (32-bit, prefetchable) [size=64M] Capabilities: [a0] AGP version 2.0 00:01.0 PCI bridge: Intel Corporation 82820 820 (Camino) Chipset PCI to AGP Bridge (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, 66Mhz, fast devsel, latency 64 Bus: primary=00, secondary=01, subordinate=01, sec-latency=64 Memory behind bridge: fc000000-fdffffff Prefetchable memory behind bridge: f4000000-f5ffffff 00:1e.0 PCI bridge: Intel Corporation 82801AA PCI Bridge (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=64 I/O behind bridge: 0000e000-0000efff Memory behind bridge: fa000000-fbffffff 00:1f.0 ISA bridge: Intel Corporation 82801AA ISA Bridge (LPC) (rev 02) Flags: bus master, medium devsel, latency 0 00:1f.1 IDE interface: Intel Corporation 82801AA IDE (rev 02) (prog-if 80 [Master]) Subsystem: Intel Corporation 82801AA IDE Flags: bus master, medium devsel, latency 0 I/O ports at ffa0 [size=16] 00:1f.2 USB Controller: Intel Corporation 82801AA USB (rev 02) (prog-if 00 [UHCI]) Subsystem: Intel Corporation 82801AA USB Flags: bus master, medium devsel, latency 0, IRQ 19 I/O ports at ff80 [size=32] 00:1f.3 SMBus: Intel Corporation 82801AA SMBus (rev 02) Subsystem: Intel Corporation 82801AA SMBus Flags: medium devsel, IRQ 17 I/O ports at dcd0 [size=16] 00:1f.5 Multimedia audio controller: Intel Corporation 82801AA AC'97 Audio (rev 02) Subsystem: Dell Computer Corporation: Unknown device 0095 Flags: bus master, medium devsel, latency 0, IRQ 17 I/O ports at d800 [size=256] I/O ports at dc80 [size=64] 01:00.0 VGA compatible controller: nVidia Corporation Riva TnT2 [NV5] (rev 11) (prog-if 00 [VGA]) Subsystem: Diamond Multimedia Systems: Unknown device 5a40 Flags: 66Mhz, medium devsel, IRQ 16 Memory at fc000000 (32-bit, non-prefetchable) [size=16M] Memory at f4000000 (32-bit, prefetchable) [size=32M] Expansion ROM at 80000000 [disabled] [size=64K] Capabilities: [60] Power Management version 1 Capabilities: [44] AGP version 2.0 02:0c.0 Ethernet controller: 3Com Corporation 3c905C-TX [Fast Etherlink] (rev 78) Subsystem: Dell Computer Corporation: Unknown device 0095 Flags: bus master, medium devsel, latency 64, IRQ 18 I/O ports at ec80 [size=128] Memory at fafffc00 (32-bit, non-prefetchable) [size=128] Expansion ROM at fb000000 [disabled] [size=128K] Capabilities: [dc] Power Management version 2 I'm not sure this is a kernel bug, but if it's a problem with 2.4 specifically or this particular CD drive, then the kernel people are the ones who understand it, so I'm moving the bug to them. Hmm I don't think its a kernel bug as it isnt happening with KDE. However I just found that it is doing it on a Optiplex GX110 as well (also uses the i810) . However I discovered it did not start happening until I selected the enable sound server and Sounds for events in the Gnome Control Center. Disabling these allows the CD audio to function properly. So where should this go? Ah, that would indicate some sort of esound issue. assigning to sopwith as its esound! Hi, I wish people would read further instead of latching onto the 'esound' word :) I am going to take a shot in the dark and blame this on the kernel even though it is assigned to esound for now. This is because esound does not control mixer levels (the mixer) at all - it just outputs sound. Normal inputs into the mixer should not produce erroneous outputs... Can you reproduce this behaviour on a system with different sound hardware? If not, that would be another pointer towards a kernel problem. Any further info available on reproducing the problem in a hardware-independant fashion? When I disable the onboard sound & install a SB Live card the problem goes away. I have been able to reproduce on both the i810 & i815 systems (both use the same sound module). Because the behaviour described by Daniel seems to indicate that this problem is specific to a particular type of hardware, I'm thinking that this is a problem with the I810/I815 sound driver rather than esound. If someone on the kernel side of things happens to come up with a hardware-independant theory, I'll keep myself on the Cc list for this bug just in case. Most likely it is just driver funkiness. Verified still occuring in beta3/fisher I'm unable to reproduce this here on the p330 workstation (i810 audio, unknown codec) Can you find out what the codec is on each of the machines that have this problem and report that back here. Also, when this happens, see if turning up the CD-ROM volume using a mixer will bring the CD-ROM back after it has faded out. This may be a relative level output issue with the codec (aka, if you let one volume setting get too much higher than another then the codec in question cuts out the the lower setting channels with a greater degree of rejection than it should). Update two new issues. 1)Running sound config: you can hear that Linus Torvalds sounds like the chipmunks. the bit rate is wierd. However, esd plays fine and Quake 3 runs fine. 2)Once you enable the sound server at startup in the Gnome utilities Quake 3 sound stops running. you have to disable it and reboot the system to have Q3 run with sound again. Same problem occurrs in qa0319 Please don't add new bug issues to an existing bug report, instead open new bug reports for the two new issues. In this case though, don't bother. The chipmunk sound issue is because sox doesn't upsample the sound sample to 16 bit stereo and that's the only mode the i810 chipset supports so the formats are mismatched. That problem has to be resolved with sox (if anywhere). The second issue isn't a bug, it's expected behavior. Once the esd daemon takes over the sound channel (which happens when you turn on sound events in gnome) then quake3 can no longer open the sound device and you don't get sound. You don't have to reboot to fix it though, simply changing the setting and the logging out of your X windows session so that the X session is restarted should be sufficient to get quake3 working again. So, having addressed those two issues, we are back to the original issue. So far, we know the following things: It only happens when using gnome and having sound events enabled (aka, only with esound running) and it only happens on certain i810 hardware (it doesn't happen on the 330 test machine I have here for example). It involves an interaction between increasing the PCM volume and listening to CD audio. Elliot, does esd play silence when there are no sounds currently being played or does it simply not play anything at all? Daniel, I need to know what codecs are on the failing machines. You can't find the codec by looking in the lspci output because it isn't a pci device, but the i810 sound driver outputs the codec signature on startup so the messages from the i810 sound driver init should be sufficient. Daniel, when the problem happens, is anything in particular playing on the PCM channel, or is it silent? What about the CD, I assume you have some musical CD you are listening to. Does it go totally silent or does it just get quiter? This slipped by me this is no longer happening in gold promblem fixed. |