I installed the test kernel:
linux-headers-5.0.0-28_5.0.0-28.29~lp1840835_all.deb
linux-headers-5.0.0-28-generic_5.0.0-28.29~lp1840835_amd64.deb
linux-image-unsigned-5.0.0-28-generic_5.0.0-28.29~lp1840835_amd64.deb
linux-modules-5.0.0-28-generic_5.0.0-28.29~lp1840835_amd64.deb
linux-modules-extra-5.0.0-28-generic_5.0.0-28.29~lp1840835_amd64.deb

uname -r: 5.0.0-28-generic

Power consumption was completely normal, idling at less than 4 watts as 
expected. While using iGPU, I noticed that each time I run lspci, it lags for 
less than a second and the following messages appear on dmesg:
[    7.587195] snd_hda_codec_hdmi hdaudioC1D0: Unable to sync register 
0x7f0800. -5
[    7.587200] snd_hda_codec_hdmi hdaudioC1D0: HDMI: invalid ELD buf size -1

On file dmesg50028 I provide the dmesg output.

I switch to nvidia gpu for test purposes. Everything is normal, and
those messages only appear at gpu initialization, and lspci didnt lag at
all. On file dmesg50028nvidia I provide the dmesg output after switching
to nvidia gpu.

Excluding those messages, I conclude that it fixes the power consumption
problem.

** Attachment added: "dmesg50028"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840835/+attachment/5285032/+files/dmesg50028

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1840835

Title:
  High power consumption using 5.0.0-25-generic

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840835/+subscriptions

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to