[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-07 Thread Alex Cabal
OK, I've filed a bug at https://gitlab.freedesktop.org/drm/intel/-/issues/2145 I'll keep this bug report updated. ** Bug watch added: gitlab.freedesktop.org/drm/intel/-/issues #2145 https://gitlab.freedesktop.org/drm/intel/-/issues/2145 -- You received this bug notification because you are a

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-07 Thread Kai-Heng Feng
According to the lspcon chip datasheet, there's an optional reset pin that can reset the chip. I wonder if it's not being used under Linux. Anyway, please file an upstream bug at Intel graphics upstream: https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs -- You received this bu

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-07 Thread Unmesh
Just to add to my previous comment, I see that if I remove HDMI cable and reconnect it again, I 'always' get lspcon error. If I need external monitor, I need to restart the machine. ** Attachment added: "dmesg_hdmi_reconnect.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886230/+at

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-06 Thread Unmesh
I recently purchased Thinkpad P1 Gen2(Intel® Core™ i7-9850H CPU @ 2.60GHz × 12 with Mesa Intel® UHD Graphics 630 (CFL GT2)) I have latest Ubuntu 20.04 installed. (5.4.0-40-generic #44-Ubuntu SMP Tue Jun 23 00:01:04 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux) I am seeing issues with an external monit

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-04 Thread Alex Cabal
Re. the bug report in the email thread, they state that "if HDMI cable isn't plugged before boot, the HDMI port becomes useless and never responds to cable hotplugging" However my situation seems to be the reverse: If the HDMI cable is plugged in before cold boot, then the port appears to work thr

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-04 Thread Alex Cabal
The patch did not fix the issue. However, during boot, some error text appeared that did not appear before: [1.868916] [drm:drm_lspcon_set_mode [drm_kms_helper]] *ERROR* LSPCON mode change timed out [1.868970] [drm:lspcon_change_mode.constprop.0 [i915]] *ERROR* LSPCON mode change failed

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-04 Thread Kai-Heng Feng
Can you please test this patch: https://lore.kernel.org/lkml/20200610075542.12882-1-kai.heng.f...@canonical.com/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886230 Title: Thinkpad P1 Gen2 HDMI do

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-04 Thread Alex Cabal
Should I report this to upstream instead? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886230 Title: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot To manage notifications about this

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-03 Thread Alex Cabal
Tested on stock Ubuntu kernel 5.4.0, then 5.7.7, then 5.8.0-rc3 with same results. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886230 Title: Thinkpad P1 Gen2 HDMI doesn't work after log out or re

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-03 Thread You-Sheng Yang
Hi, please test mainline builds: https://wiki.ubuntu.com/Kernel/MainlineBuilds -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886230 Title: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-03 Thread Alex Cabal
Note, this occurs in both Wayland and X. Thus I think it's probably a kernel issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886230 Title: Thinkpad P1 Gen2 HDMI doesn't work after log out or r

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-03 Thread Alex Cabal
dmesg output when HDMI is working ** Attachment added: "dmesg-working" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886230/+attachment/5389517/+files/dmesg-working -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://b

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-03 Thread Alex Cabal
dmesg output after reboot, and HDMI is broken ** Attachment added: "dmesg-broken-post-reboot" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886230/+attachment/5389518/+files/dmesg-broken-post-reboot -- You received this bug notification because you are a member of Ubuntu Bugs, which

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-03 Thread Alex Cabal
xrandr output after the bug occurs (i.e. HDMI is broken) ** Attachment added: "xrandr-broken" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886230/+attachment/5389516/+files/xrandr-broken -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscrib

[Bug 1886230] Re: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot

2020-07-03 Thread Alex Cabal
xrandr output when HDMI is working correctly ** Attachment added: "xrandr-working" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886230/+attachment/5389515/+files/xrandr-working -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubun