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stockmind / gpd-pocket-ubuntu-respin

Collection of scripts and tweaks to adapt Ubuntu and Linux Mint ISO images to let them run smooth on GPD Pocket
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HDMI don't work after update to 4.15 kernel #92

Open lucashanak opened 6 years ago

lucashanak commented 6 years ago

Hi When I use kernel 4.15 and plug external display to hdmi port, system freeze and I must reset PC. When I boot 4.14 kernel, external display works OK. Ubuntu 17.10 and xfce. Anyone have same problem?

stockmind commented 6 years ago

Regression could happen! What kernel version (rc and build date) are you using at the moment? Could you post the output of "problem-reporting.sh" script? This will help debug

lucashanak commented 6 years ago

Kernel: 4.15.0-rc5-custom-matlala-3-1-2018 Desktop Environment: Display: :0.0 Monitor: DSI1 connected primary 1344x840+0+0 right (normal left inverted right x axis y axis) 95mm x 151mm Scripts: gpdfand gpdscreen gpdscreen-indicator EFI: [ 0.000000] efi: EFI v2.40 by American Megatrends EFI Release Date: 06/28/2017

Not sure now, but maybe it freezes only when I click extend right for second LCD on HDMI. I must try... And proble is only with 4.15 kernel, all tested versions Petr Matula, your, my, rc5, rc3.... 4.14 was OK.

lucashanak commented 6 years ago

Same system and settings, only reboot. 4.14 OK, 4.15 freeze.

R136a commented 6 years ago

Same for me. System freeze on kernel 4.15. Regards

stockmind commented 6 years ago

The issue persist on latest kernels? Can you attach your monitors.xml file? You can find it here: ~/.config/monitors.xml Thanks! Also @R136a are you on XFCE too?

gled-rs commented 6 years ago

I can confirm the problem still happens with 4.15 latest kernel and Xfce.

No issue running on 4.14.

4.15 is stable as long as the HDMI out is not used. I tried changing bios parameters ( mostly thermal ) but nothing improved. It also seems like the fan is running more under 4.14 compared to 4.15 but this is a feeling, nothing measured.

jnhollow commented 6 years ago

When I start with 4.15 using Debian Testing, display is highly magnified but doesn't freeze. Using HDMI. 4.14 works fine. AMD APU and ASUS motherboard.