After an update, hdmi was not working anymore (no video and no sound).
So i did the command:
sudo gedit /etc/default/grub
and changed "GRUB_CMDLINE_LINUX_DEFAULT="NOMODESET"" into
"GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1""
then
sudo update-grub
it fixed the problem for me.
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** Changed in: linux (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1542934
Title:
hdmi not working
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I tested again and i changed the /etc/default/grub setting
GRUB_CMDLINE_LINUX_DEFAULT=NOMODESET, video and sound hdmi work now.
i also tested ubuntu 16.04 live usb, hdmi (sound video) works
correctly.
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System information:
Linux portable-londe 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22
11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64 bits - 8GB RAM - Bios A09 -
Intel® Core™ i5-5200U CPU @ 2.20GHz × 4 - Intel® HD Graphics 5500
i got err
I don't understand what you except from me since i post my comments with
kernel 4.5 R3 already here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542934/comments/9
Everything works fine: wifi, sound, hdmi (no freeze anymore), ...
System information:
Linux portable-londe 4.5.0-040500rc3-g
I don't know which kernel you call the Trusty kernel.
I had problems with kernel 3.19. So i decided to test kernels 3.13,3.19,3.16,
4.2,4.4 and 4.5 as well.
after a look at http://packages.ubuntu.com/fr/trusty/kernel/, kernels
3.13,3.19,3.16, 4.2 are maybe trusty?
So i will report with new tests
Just found in my logs with this command and still the same errors
dmesg|grep ERROR
[0.177668] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM
[ 372.223326] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe A FIFO underrun
The first error occurs always at the start of
Sorry for my previous post. The problem reappeared again.
After hours without problem when i unplugged the hdmi cable, the error came
again:
[ 4292.907985] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR*
CPU pipe A FIFO underrun
System information:
Linux portable-londe 4.5.0-040500rc3
I've got the same bug. It seems solved with kernel 4.5 RC3.
see
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1542934?comments=all
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https://bugs.launchpad.net/bugs/1488719
Title:
Since I updated the linux kernel to version 4.5 RC3, I cannot reproduce
the error. So it seems solved with kernel 4.5 RC3.
Linux portable-londe 4.5.0-040500rc3-generic #201602071930 SMP Mon Feb 8
00:34:43 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
System information: Dell Inc. Inspiron 5558 with Ubu
I updated the bios to A09
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
A09
12/30/2015
and i still get this error when i unplugged the hdmi cable connected to
the TV.
System information: Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64
bits - 8GB RAM - Bios A07 - Intel®
I put dmesg in attachment with the error
[ 299.696803] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR*
CPU pipe A FIFO underrun
** Attachment added: "dmesg"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1542934/+attachment/4566443/+files/dmesg
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Public bug reported:
Hello,
I get an error on my laptop with ubuntu 14.04 and kernel 4.5 RC2. No
HDMI cable plugged.
[ 299.696803] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR*
CPU pipe A FIFO underrun
System information: Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64
bits - 8GB
i have the same problem on my laptop with ubuntu 14.04 and kernel 4.5
RC2 connected to my TV with a hdmi cable.
[ 871.502227] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR*
CPU pipe A FIFO underrun
System information: Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64
bits - Bios A07 -
Quick test with Kernel 4.5 RC1 connected hdmi for a few seconds => the
problem seems to be solved. No error anymore and everything is working
fine :-).
System information: Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64
bits - Bios A07 - Intel® Core™ i5-5200U CPU @ 2.20GHz × 4 - Intel® HD
Graph
Also tested Kernel 4.4 RC8 => the same error appears in /var/log/syslog when i
connect my laptop to the tv with a hdmi cable.
The error appears only at the moment when i plug the hdmi cable. Then it stops.
Then i change the configuration of the sound to hdmi display port. And the same
error occu
Also tested Kernel 4.4 RC7 did not solve the problem on my laptop when i
plugged a hdmi cable to the tv => the same error appears in /var/log/syslog.
Error disappears when i unplugged the hdmi cable.
System information: Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64
bits - Bios A07 - Intel®
Kernel 4.4 RC6 did not solve the problem on my laptop when i plugged a hdmi
cable to the tv => same error.
System information: Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64
bits - Bios A07 - Intel® Core™ i5-5200U CPU @ 2.20GHz × 4 - Intel® HD
Graphics 5500
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I have the same error and random freeze with kernel 3.19.0-42-generic
(and other kernels), not with kernel 3.13.
on Dell Inc. Inspiron 5558 with Ubuntu 14.04.3 LTS 64 bits - Bios A07 -
Intel® Core™ i5-5200U CPU @ 2.20GHz × 4 - Intel® HD Graphics 5500
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