[Ubuntu-x-swat] [Bug 1684755] Re: Missing dependency to libtxc-dxtn-s2tc:amd64
I was stung by this using the Mesa driver. I concur that it should be a dependency of libgl1-mesa-dri instead of recommended, unless there is some downside to it that I can't see. I'm not a 3d drivers expert. ** Also affects: mesa (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1684755 Title: Missing dependency to libtxc-dxtn-s2tc:amd64 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1684755/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem on Intel graphics card
@Kai-Heng I'm running that now it seems to be working well: $ uname -a Linux giacomo-awin-latitude 4.4.0-100-generic #123-Ubuntu SMP Thu Nov 2 10:16:13 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux I see many changes in the changelog, what's the patch that fixed it? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem on Intel graphics card
@Kai-Heng thanks a lot, using the modesetting driver helped! I just read that using the Intel driver is not recommended anymore on newer systems, I didn't know that. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem on Intel graphics card
@Kai-Heng: the problem is fixed here using your 4.4.0-99 version on my Dell Latitude E7470 with Skylake. Well it's buggy like on 4.4.0-72, after loggin both screens go black, but I have my workaround works again. If I switch to text mode (Ctrl+Alt+F1) and back (Alt+F7) both screens work -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem on Intel graphics card
Sorry for the delay, I tried: linux-image-4.4.0-83-generic doesn't work linux-image-4.8.0-040800-generic doesn't work linux-image-4.10.0-041000-generic works linux-image-4.11.0-041100-generic works By the way, I didn't mention is that even the kernel versions that work are far from perfect. When I first login one of the 2 external screens goes black or starts flickering, but there is a workaround. I have to switch to text mode (Ctrl+Alt+F1) and back. With the kernel versions that don't work I couldn't find any workaround, the external screens go black and they don't switch on anymore. Also, when I undock it while it's running it often crashes, and if it doesn't it crashes when I dock it back. Switching to text mode before docking/undocking seems to make more stable. That's most likely a different bug though. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem on Intel graphics card
@Kai-Heng I use a Dell E-Port Plus. This is my ouput of lsmod | grep i915: i915_bpo 1302528 5 intel_ips 20480 1 i915_bpo i2c_algo_bit 16384 1 i915_bpo drm_kms_helper155648 1 i915_bpo drm 364544 6 i915_bpo,drm_kms_helper video 40960 3 i915_bpo,dell_wmi,dell_laptop -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem on Intel graphics card
Version 4.4.0-72-generic seems to be the last version that works for everyone here, on different systems. I renamed this bug to mention Intel, but Shay Perlstein above had the same problem on NVidia. @Kai-Heng could it be the same bug even if on different graphic drivers? Do you know if there is any code/module that is used for external monitors regardless of the graphics card? For example this entry from the changelog sounds like it might be related: - drm/dp/mst: fix kernel oops when turning off secondary monitor I should have mentioned that I have this problem using a Dell docking station, and I have 2 external monitors connected to it, 1 connected using the display port, the other one using DVI. It wasn't working when using 2 display ports even before 4.4.0-72-generic. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem on Intel graphics card
The problem is only reproducible with some Kernel versions, how can it not be related to the Kernel? I actually have a Sky Lake, not a Haswell like the reporter. So maybe one of those commits for Baytrail caused a regression on other Intel Graphics processors? Another culprit seems to be Dell laptops... I'm on a Dell Latitude E7470, other people mentioned them too, although it might just be because it's a common brand. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem on Intel graphics card
@kaihengfeng this is my output of that command: ~ $ dpkg -l | grep linux-image hi linux-image-4.4.0-72-generic 4.4.0-72.93 amd64Linux kernel image for version 4.4.0 on 64 bit x86 SMP ii linux-image-4.4.0-78-generic 4.4.0-78.99 amd64Linux kernel image for version 4.4.0 on 64 bit x86 SMP hi linux-image-extra-4.4.0-72-generic4.4.0-72.93 amd64Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP ii linux-image-extra-4.4.0-78-generic4.4.0-78.99 amd64Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP ii linux-image-generic 4.4.0.78.84 amd64Generic Linux kernel image I marked the 4.4.0-72 version to hold. However maybe you wanted to grep for "intel" rather than linux-image? Isn't the graphics driver in the xserver-xorg-video-intel package? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem on Intel graphics card
** Summary changed: - External monitor connecting problem + External monitor connecting problem on Intel graphics card -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem
I have this problem since linux-image-4.4.0-75 linux-image-4.4.0-77 is also affected. linux-image-4.4.0-72 works ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem
@naveenkumarmula do you mind trying to boot with the previous kernel version and see if that fixes it for you too? You should be able to choose the Kernel to start at boot. Btw I'm also on Intel graphics -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem
Sorry for spamming everyone, as this started happening after a kernel upgrade is it a Kernel bug? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1686189] Re: External monitor connecting problem
I have the same problem on 16.04.2 Xenial since upgrading the Kernel to 4.4.0-75 yesterday. Booting the the older kernel version 4.4.0-72-generic seems to be a workaround. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1686189/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
