Takashi Iwai wrote, on 06/08/12 17:52: > At Fri, 08 Jun 2012 17:45:17 +0200, > Jörg-Volker Peetz wrote: >> >> Hello Takashi, >> >> Takashi Iwai wrote, on 06/08/12 15:03: >>> At Fri, 08 Jun 2012 13:26:57 +0200, >>> Jörg-Volker Peetz wrote: >>>> >>>> Takashi Iwai wrote, on 06/07/12 12:15: >>>>> Hi, >>>>> >>>>> this is a series of patches to fix the regressions of HD-audio HDMI >>>>> on D-GPUs in 3.5-rc1 due to the support of VGA-switcheroo audio clients. >>>>> >>>>> The first patch adds a new helper function to vga-switcheroo and the >>>>> second just uses that instead of an open code. >>>>> >>>>> Dave, if the first patch is OK, I'm going to apply it though sound tree. >>>>> Let me know if any problem is found. >>>>> >>>>> Joerg, could you check whether this doesn't break your setup, too? >>>>> >>>>> >>>>> thanks, >>>>> >>>>> Takashi >>>> >>>> Hello Takashi, >>>> >>>> I applied both your patches on 3.5-rc1. With this kernel I made three tests. >>>> 1) After booting I switched off the discrete GPU via vga_switcheroo. >>>> Then ca. 210 times the message >>>> >>>> hda-intel: spurious response 0x0:0x0, last cmd=0x170503 >>>> >>>> appears on the console and in the logs. >>>> Starting X and using the built-in USB web-cam work, as well as sound with >>>> mplayer2 works. >>>> >>>> 2) After booting I switched to the discrete GPU via >>>> >>>> echo -n DDIS > /sys/kernel/debugfs/vgaswitcheroo/switch >>>> >>>> Then I started X via startx. The desktop screen appears but the system >>>> freezes. No reaction on keyboard or touchpad input. The computer is not >>>> reachable via ethernet wire. >>> >>> Hm, these issues aren't seen on 3.5-rc1 before my patches? >>> If so, we need to fix now. >>> >> No, these issues aren't seen on 3.5-rc1 without your patches. I'm able to start >> X with the discrete GPU in use, direct rendering and the built-in USB camera work. > > OK, it means that the switching from the audio-ON to audio-OFF doesn't > work. Could you try the patch below in additon? > Applying all your three patches on 3.5-rc1 makes the discrete GPU work on my system: after mounting debugfs and switching to "DDIS", I can start X and direct rendering, sound and built-in USB camera work. By the way, writing "DDIS" to /sys/kernel/debugfs/vgaswitcheroo switches off the integrated GPU. That's the reason for loosing the control over the screen brightness. Switching on also the integrated GPU (writing "ON" to /sys/kernel/debugfs/vgaswitcheroo) enables the brightness control of the screen. Of course for the energy consumption this is awkward. I write all this as information about the state of vga_switcheroo for David. Many thanks to you and David for all your work. >> Probably unrelated: in both cases I'm unable to lower the screen brightness from >> highest value. Without your patches it appears a warning: >> >> ACPI Warning: _BQC returned an invalid level (20120320/video-472) > > Hmm, I see no relation between this and the HDMI audio part. > It's of course possible that some non-working state gives > side-effects... > > > thanks, > > Takashi > <snip> -- Best regards, Jörg-Volker. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
