[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-12-08 Thread AaronMa
** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1938999 Title: External displays not working on Thinkpad T490 with T

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-09-27 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 5.11.0-37.41 --- linux (5.11.0-37.41) hirsute; urgency=medium * hirsute/linux: 5.11.0-37.41 -proposed tracker (LP: #1944180) * CVE-2021-41073 - io_uring: ensure symmetry in handling iter types in loop_rw_iter() * Packaging resync (

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-09-21 Thread AaronMa
** Tags removed: verification-needed-hirsute ** Tags added: verification-done-hirsute -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1938999 Title: External displays not working on Think

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-09-21 Thread Kelsey Skunberg
Thank you for the note, Tomas. Aaron, may you please help with the verification on this? Thank you! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1938999 Title: External displays not wo

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-09-10 Thread Tomas Petricek
Thanks for the fix. I'm not sure to whom the previous message is addressed but I will not be able to test it because I'm will not be at the office until end of September. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. htt

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-09-07 Thread Ubuntu Kernel Bot
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- hirsute' to 'verification-done-hirsute'. If the problem still exists, change the tag 'verifi

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-31 Thread Kleber Sacilotto de Souza
** Changed in: linux (Ubuntu Hirsute) Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1938999 Title: External displays not working on Thinkpad

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-24 Thread Stefan Bader
** Changed in: linux (Ubuntu Hirsute) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Hirsute) Status: New => In Progress ** Changed in: linux (Ubuntu Hirsute) Assignee: (unassigned) => AaronMa (mapengyu) -- You received this bug notification because you are a member

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-16 Thread AaronMa
** Description changed: I have two external displays chained via Display port connected to the ThinkPad Thunderbolt 3 Dock. They are working with kernel 5.8.0-63 but not with the new 5.11.0-25 kernel. I could reproduce this behavior several times for both kernels, as follows: I b

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-16 Thread AaronMa
** Description changed: I have two external displays chained via Display port connected to the ThinkPad Thunderbolt 3 Dock. They are working with kernel 5.8.0-63 but not with the new 5.11.0-25 kernel. I could reproduce this behavior several times for both kernels, as follows: I b

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-16 Thread Bin Li
@aaron, Tried the 5.11.0-26.28-lp1938999-generic kernel, it works fine. You could check more about it from this log. Thanks! ** Attachment added: "journalctl.l15.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1938999/+attachment/5518358/+files/journalctl.l15.log -- You received

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-16 Thread AaronMa
Hi BinLi: Could you try ppa: https://launchpad.net/~mapengyu/+archive/ubuntu/bionic-oem -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1938999 Title: External displays not working on Thi

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-13 Thread AaronMa
Thanks BinLi, I will SRU it. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1938999 Title: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock Status in li

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-13 Thread Bin Li
I build a kernel based on v5.12-rc4, and cherry-pick below commit, this issue is fixed. 3f3a9bc1f6df drm/i915/ilk-glk: Fix link training on links with LTTPRs And I tried to cherry-pick the other two commits. It's still good. ab03631087f5 drm/i915: Disable LTTPR support when the LTTPR rev < 1.4 7

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-13 Thread AaronMa
I think the following commits are the fixes: ab03631087f5 drm/i915: Disable LTTPR support when the LTTPR rev < 1.4 7dffbdedb96a drm/i915: Disable LTTPR support when the DPCD rev < 1.4 3f3a9bc1f6df drm/i915/ilk-glk: Fix link training on links with LTTPRs -- You received this bug notification becau

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-13 Thread Bin Li
I also found the fixed patch should between v5.12-rc4 and v5.12-rc5. v5.12 works. v5.11.22 doesn't work. v5.12-rc4 doesn't work. v5.12-rc6 works. v5.12-rc5 works. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bu

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-13 Thread Bin Li
I tried the maniline kernel with bisect method. We need bisect the patch from v5.10.57 to v5.11-rc2, and v5.11-rc1 didn't provide deb package because of building failure. v5.10 works fine v5.10.57 works fine v5.11 doesn't work v5.11-rc4 doesn't work v5.11-rc2 doesn't work -- You received this bu

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-12 Thread Bin Li
I could reproduce this issue on L15, when I insert DP cable, it show a lot of '*ERROR* Link Training Unsuccessful'. And from the xrandr I found the DP monitor was recognized, and I could move mouse to this external monitor, but the screen is black. Aug 12 23:45:05 u-ThinkPad-L15-Gen-1 kernel: i915

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-12 Thread AaronMa
I am trying to find T490 to reproduce. Please wait a while. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1938999 Title: External displays not working on Thinkpad T490 with ThinkPad T

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-11 Thread Tomas Petricek
I also installed the 5.13.9 kernel, again with the same unmet dependency: dpkg: dependency problems prevent configuration of linux-headers-5.13.9-051309-generic: linux-headers-5.13.9-051309-generic depends on libc6 (>= 2.33); however: Version of libc6:amd64 on system is 2.31-0ubuntu9.2. To my

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-11 Thread Tomas Petricek
There seems to be a dependency problem with linux- headers-5.13.0-051300-generic: dpkg: dependency problems prevent configuration of linux-headers-5.13.0-051300-generic: linux-headers-5.13.0-051300-generic depends on libc6 (>= 2.33); however: Version of libc6:amd64 on system is 2.31-0ubuntu9.2

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-11 Thread Tomas Petricek
I tested again on kernels 5.8 and 5.11 with nvidia-driver-470. Logs are attached. With 5.8 kernel, the external displays eventually come to live, after connecting the dock and some waiting (~15 s). After first connection, it seemed to be doing several trials, in the end it worked too. With 5.11 k

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-10 Thread AaronMa
I didn't reproduce this issue on T590 with 5.11.0-25 kernel. Please try dock or DP again. And the 5.13 kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.13/amd64/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. h

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-09 Thread Tomas Petricek
Thanks for looking into this. I changed the drivers to nouveau to workaround some previous issues I had with external displays and then I forgot made this change. Could you point me to how to test with 5.13/5.14 kernels, please? If possible I would like to stick to the default drivers/kernel. For

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-05 Thread AaronMa
nouveau is used instead of nvidia-driver. external display highly depends on nvidia gpu. Could you try 5.13/5.14 kernel? Or 5.13 with nvidia-driver? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.n

[Kernel-packages] [Bug 1938999] Re: External displays not working on Thinkpad T490 with ThinkPad Thunderbolt 3 Dock

2021-08-05 Thread Launchpad Bug Tracker
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: linux (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1938999