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Old 12-27-2010, 10:46 AM   #1
Danotto94
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Can't get HDMI working on Dell Inspiron 1525


Hello Linux Questions! Well, I'm on a Dell Inspiron 1525 running Arch Linux with an Intel 965 GM video chipset (from dmesg). I'm using the xf86-video-intel driver, and Xorg (using xfce4) works flawlessly, including compositing. Before getting into details about the HDMI, I'd like to ask why I don't gave an xorg.conf.d/10-moniter.conf, it's not there, just evdev, quirks, and synaptics (because I figured that moniter.conf could be modified to include HDMI). So, basically when I'm on my XFCE4 desktop, I plug in the HDMI cable and to the TV, and on windows, it would would work, but on Arch the TV just says: "No input", and my desktop just stays the same, so absolutely nothing happens. If I have it connected upon bootup, the HDMI displays (the BIOS and grub menu on the TV) until I select to boot Arch linux on Grub, then the tv screen goes blank. Any ideas? I've tried Googling this but I got no decent results, just a bunch of random posts of audio not working with Nvidia. Thanks for the support.

PS - I did dmesg and lspci (with grep HDMI) and no results, so maybe it doesn't even recognize it, but then what do I do? There's obviously Linux support for HDMI...
 
Old 12-27-2010, 12:10 PM   #2
markush
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Hi Danotto94 and welcome to LQ,

there are special kernelmodules for laptops and (in the case of dell) additional configurations for the kernel. These modules are needed for example to activate the functional-buttons on a laptop. As you know there is a button which switches between HDMI (or in general extern Monitor) and the laptop-screen.

In order to find out which modules there are already loaded, please post the output of
Code:
lsmod | sort
there are at least two modules which may apply to your laptop, "dell_laptop" and "dell_wmi", you may try to load them with modprobe
Code:
modprobe dell_wmi
modprobe dell_laptop
if the modules are not there, maybe you'll have to rebuild the kernel.
Also check the kernelconfiguration if there are other modules available for your machine.

Markus
 
Old 12-27-2010, 01:48 PM   #3
Danotto94
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Re: HDMI

Hey thanks for replying, Markush. Both of the modules you mentioned were loaded when I did lsmod | sort, and I don't think there's a button on my laptop that switches between HDMI and laptop moniter, unless it's F8 - CRT/LCD. I keep trying Google, yet nothing relevant comes up...

lsmod|sort:

Quote:
ac 2329 0
agpgart 22816 2 drm,intel_agp
ahci 17589 4
arc4 1070 2
ata_piix 17935 0
b43 156259 0
battery 8007 0
button 3746 1 i915
cdrom 31410 1 sr_mod
cfg80211 123270 2 b43,mac80211
crc_itu_t 1053 1 firewire_core
dcdbas 4292 1 dell_laptop
dell_laptop 5035 0
dell_wmi 2515 0
drm 142871 3 i915,drm_kms_helper
drm_kms_helper 23055 1 i915
ecb 1589 2
ehci_hcd 32908 0
evdev 6660 18
ext2 55752 1
ext3 110866 2
fat 42802 1 vfat
firewire_core 42849 1 firewire_ohci
firewire_ohci 23516 0
hid 60496 1 usbhid
i2c_algo_bit 4183 1 i915
i2c_core 15634 6 videodev,i2c_i801,i915,drm_kms_helper,drm,i2c_algo_bit
i2c_i801 6946 0
i915 283884 3
intel_agp 24011 2 i915
ipv6 244945 14
iTCO_vendor_support 1433 1 iTCO_wdt
iTCO_wdt 8677 0
jbd 39278 1 ext3
joydev 7631 0
led_class 1811 2 b43,sdhci
libahci 15598 1 ahci
libata 140500 4 ata_piix,pata_acpi,ahci,libahci
mac80211 174591 1 b43
mbcache 4298 2 ext2,ext3
mmc_core 52813 3 b43,sdhci,ssb
Module Size Used by
nls_cp437 4525 0
output 1416 1 video
pata_acpi 2308 0
pci_hotplug 21555 1 shpchp
pcmcia 31744 2 b43,ssb
pcmcia_core 9745 1 pcmcia
pcspkr 1359 0
processor 22776 2
psmouse 49765 0
rfkill 12854 2 cfg80211,dell_laptop
scsi_mod 106987 5 usb_storage,sg,sr_mod,sd_mod,libata
sdhci 14469 1 sdhci_pci
sdhci_pci 5492 0
sd_mod 24384 5
serio_raw 3566 0
sg 20996 0
shpchp 23005 0
sky2 39391 0
snd 43283 13 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_o ss,snd_pcm,snd_mixer_oss,snd_timer
snd_hda_codec 69419 3 snd_hda_codec_idt,snd_hda_codec_intelhdmi,snd_hda_intel
snd_hda_codec_idt 47317 1
snd_hda_codec_intelhdmi 9553 1
snd_hda_intel 19180 2
snd_hwdep 4764 1 snd_hda_codec
snd_mixer_oss 14654 1 snd_pcm_oss
snd_page_alloc 5981 2 snd_hda_intel,snd_pcm
snd_pcm 59168 4 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_pcm_oss 33694 0
snd_seq 41688 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 4369 3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_seq_dummy 1079 0
snd_seq_midi_event 4496 1 snd_seq_oss
snd_seq_oss 25040 0
snd_timer 15455 3 snd_seq,snd_pcm
soundcore 4929 1 snd
sr_mod 13217 0
ssb 38692 1 b43
thermal 9690 0
uhci_hcd 19059 0
usbcore 115834 6 usb_storage,uvcvideo,usbhid,uhci_hcd,ehci_hcd
usbhid 32137 0
usb_storage 33980 0
uvcvideo 54705 0
v4l1_compat 13530 2 uvcvideo,videodev
vfat 8176 0
video 15857 1 i915
videodev 56947 1 uvcvideo
wmi 7015 1 dell_wmi

Last edited by Danotto94; 12-27-2010 at 02:05 PM. Reason: Forgot to post lsmod output
 
Old 12-27-2010, 01:53 PM   #4
Danotto94
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repeat, sorry

Last edited by Danotto94; 12-27-2010 at 02:22 PM.
 
Old 12-27-2010, 02:02 PM   #5
markush
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Maybe you boot an Ubuntu LiveCD and find out if your HDMI works with it. If it works, you may compare the configuration (modules and others). I have some experience with Arch and I know that it is not easy to compare the configuration of both Arch and Ubuntu, but maybe that points you in the right direction.

Markus
 
Old 12-27-2010, 02:10 PM   #6
Danotto94
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Thanks, is it possible for me delete one of my posts if I accidentally repeated it twice, or is it automatically deleted?
 
Old 12-27-2010, 02:14 PM   #7
markush
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You can't delete a post, but edit it and delete the text.
Please substitute the deleted text with a hint.

Markus
 
Old 12-27-2010, 02:25 PM   #8
Danotto94
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You're German? I love Germany, I speak a little in fact, but let's not get off topic So I'll try Ubuntu and see what happens.
 
Old 12-27-2010, 02:48 PM   #9
markush
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If you boot the liveCD of Ubuntu, don't forget to save the output of lsmod and some other configuration anywhere on the harddisk, so that you can access it afterwards when back in Arch.

Mh, yes I'm from Germany, and you?

Markus
 
Old 12-27-2010, 03:13 PM   #10
Danotto94
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Hey Markush, apparently my problem was the key , F8. So all was good from the beginning, my mistake! BTW, I'm in Panama, central america, FYU.
 
Old 12-27-2010, 03:16 PM   #11
markush
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I'm happy to read that you found a solution, please don't forget to mark this thread as SOLVED with "Thread Tools" above.

Markus
 
Old 12-27-2010, 03:19 PM   #12
Danotto94
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It was simply a matter of pressing F8 Thanks Markush
 
Old 12-27-2010, 04:28 PM   #13
Danotto94
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The only bug now is that to the left of the tv there are a series of small black lines flashing rapidly, which is probably a bug with the module, no? Should I report it? It doesn't bother me so much but I figured it could be mentioned

BTW sounds works and everything
 
Old 12-27-2010, 04:41 PM   #14
markush
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Quote:
Originally Posted by Danotto94 View Post
The only bug now is that to the left of the tv there are a series of small black lines flashing rapidly, which is probably a bug with the module, no? Should I report it? ...
I'd recommend to open another thread with this issue. But post it in the hardwareforum http://www.linuxquestions.org/questi...x-hardware-18/ maybe they find a solution.

Markus
 
  


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