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Old 10-06-2014, 08:56 PM   #1
psquar3d
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Hdmi out not working on acer c720, running bodhi


Hi, I'm a bit of a newbie, so any help is appreciated. My machine is an Acer C720 chromebook. When you start it up, you need to hit ctrl+l to load bodhi. Before bodhi is loaded, the hdmi works. As soon as you start Bodhi, the hdmi stops, and the tv says that nothing is connected. I'm at a loss for what to do, does anyone have something I could try?
 
Old 10-08-2014, 11:16 AM   #2
business_kid
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try
Quote:
modprobe snd-hda-intel
then try
Quote:
aplay -l
lspci
and post the output of each
 
Old 12-26-2014, 08:06 PM   #3
psquar3d
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Sorry this took me awhile, but I'm still not having any luck. Here's what I got.

patrick@patrick-Peppy:~$ modprobe snd-hda-intel
patrick@patrick-Peppy:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: MID [HDA Intel MID], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: MID [HDA Intel MID], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: MID [HDA Intel MID], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC283 Analog [ALC283 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
patrick@patrick-Peppy:~$ lspci
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04)
00:15.0 DMA controller: Intel Corporation Lynx Point-LP Low Power Sub-System DMA (rev 04)
00:15.1 Serial bus controller [0c80]: Intel Corporation Lynx Point-LP I2C Controller #0 (rev 04)
00:15.2 Serial bus controller [0c80]: Intel Corporation Lynx Point-LP I2C Controller #1 (rev 04)
00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 1 (rev e4)
00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)
00:1f.6 Signal processing controller: Intel Corporation Lynx Point-LP Thermal (rev 04)
01:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)
 
Old 12-28-2014, 10:13 AM   #4
business_kid
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That's OK, it just shows you're not in a desparate hurry ;-)

Looking there, you have 2 sound cards - one is your sound card with speakers on it, and one is your hdmi audio output in the GPU, or to be precise, the APU. What can be happening is that output is directed at card 0 when you want it directed at card 1 and vice versa. When I had that problem I sorted it with modules options and clever stuff in modprobe.d
 
Old 12-29-2014, 06:56 PM   #5
psquar3d
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My problem isn't with audio, I can't get the screen to display anything on the tv. I can go into my screen setup through the settings, and it shows a 2nd display. But selecting it doesn't do anything, and I can't figure out why it won't play. Anything else I can try?
 
Old 12-30-2014, 04:28 AM   #6
business_kid
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Is your 2nd display vga, or hdmi?

Either way you might have to restart X. I have the previous generation Intel thing (HD 4000) and forget the name of it (Sandy bridge? Ivy Bridge? Dirty bridge?) and occasionally I have to restart X for that.

Plug in the 2nd monitor and switch it on. Restart X. There is often a Fn+F4 (or some other number) combination to switch output around. Typically, you get output only on screen, on external screen, or both.
 
  


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