[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
Try mainline kernel here: http://kernel.ubuntu.com/~kernel- ppa/mainline/v4.12-rc2/ Or intel-drm-nightly here: http://kernel.ubuntu.com/~kernel-ppa/mainline /drm-intel-nightly/current/ File an upstream bug if intel-drm-nightly does not solve your issue. -- 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Released Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
I've just reproduced the same behaviour on 17.04 - 4.10.0-22-generic - so it seems this is still an issue on latest versions of the kernel/ubuntu. -- 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Released Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
I'm also experiencing the same problem on a Gigabyte Brix J1900 unit (similar to Intel Nuc). When I plug in a monitor before turning the unit on, console shows a login on the display. If I plug a monitor after boot, it shows no input signal. Same kernel/ubuntu version. Here is output from lspci -v: 00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e) (prog-if 00 [VGA controller]) DeviceName: Onboard IGD Subsystem: Gigabyte Technology Co., Ltd Atom Processor Z36xxx/Z37xxx Series Graphics & Display Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at d000 (32-bit, non-prefetchable) [size=4M] Memory at c000 (32-bit, prefetchable) [size=256M] I/O ports at f080 [size=8] Expansion ROM at [disabled] Capabilities: [d0] Power Management version 2 Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [b0] Vendor Specific Information: Len=07 Kernel modules: i915 -- 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Released Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
Full PCI device info (with lspci -v) 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller]) DeviceName: Onboard IGD Subsystem: Holco Enterprise Co, Ltd/Shuttle Computer Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at f780 (64-bit, non-prefetchable) [size=4M] Memory at e000 (64-bit, prefetchable) [size=256M] I/O ports at f000 [size=64] Expansion ROM at [disabled] Capabilities: Kernel modules: i915 -- 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Released Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
I'm using 4.4.0-79-generic and experiencing this problem (Ubuntu Server 16.04.2) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09) This is a Shuttle XS35-V2 with a Pentium G2020 CPU. If booting with the monitor plugged in, it shows the console login. If connecting a monitor after the boot, the monitor shows no input signal. Any ideas? -- 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Released Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
yakkety has this via 4.8 ** Changed in: linux (Ubuntu) Importance: Medium => Undecided ** Changed in: linux (Ubuntu) Status: Triaged => 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Released Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
This bug was fixed in the package linux - 4.4.0-38.57 --- linux (4.4.0-38.57) xenial; urgency=low [ Tim Gardner ] * Release Tracking Bug - LP: #1620658 * CIFS client: access problems after updating to kernel 4.4.0-29-generic (LP: #1612135) - Revert "UBUNTU: SAUCE: (namespace) Bypass sget() capability check for nfs" - fs: Call d_automount with the filesystems creds * apt-key add fails in overlayfs (LP: #1618572) - SAUCE: overlayfs: fix regression in whiteout detection linux (4.4.0-37.56) xenial; urgency=low [ Tim Gardner ] * Release Tracking Bug - LP: #1618040 * [Feature] Instruction decoder support for new SKX instructions- AVX512 (LP: #1591655) - x86/insn: perf tools: Fix vcvtph2ps instruction decoding - x86/insn: Add AVX-512 support to the instruction decoder - perf tools: Add AVX-512 support to the instruction decoder used by Intel PT - perf tools: Add AVX-512 instructions to the new instructions test * [Ubuntu 16.04] FCoE Lun not visible in OS with inbox driver - Issue with ioremap() call on 32bit kernel (LP: #1608652) - lpfc: Correct issue with ioremap() call on 32bit kernel * [Feature] turbostat support for Skylake-SP server (LP: #1591802) - tools/power turbostat: decode more CPUID fields - tools/power turbostat: CPUID(0x16) leaf shows base, max, and bus frequency - tools/power turbostat: decode HWP registers - tools/power turbostat: Decode MSR_MISC_PWR_MGMT - tools/power turbostat: allow sub-sec intervals - tools/power turbostat: Intel Xeon x200: fix erroneous bclk value - tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding - tools/power turbostat: re-name "%Busy" field to "Busy%" - tools/power turbostat: add --out option for saving output in a file - tools/power turbostat: fix compiler warnings - tools/power turbostat: make fewer systems calls - tools/power turbostat: show IRQs per CPU - tools/power turbostat: show GFXMHz - tools/power turbostat: show GFX%rc6 - tools/power turbostat: detect and work around syscall jitter - tools/power turbostat: indicate SMX and SGX support - tools/power turbostat: call __cpuid() instead of __get_cpuid() - tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump - tools/power turbostat: bugfix: TDP MSRs print bits fixing - tools/power turbostat: SGX state should print only if --debug - tools/power turbostat: print IRTL MSRs - tools/power turbostat: initial BXT support - tools/power turbostat: decode BXT TSC frequency via CPUID - tools/power turbostat: initial SKX support * [BYT] display hotplug doesn't work on console (LP: #1616894) - drm/i915/vlv: Make intel_crt_reset() per-encoder - drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() - drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() - drm/i915: Enable polling when we don't have hpd * [Feature]intel_idle enabling on Broxton-P (LP: #1520446) - intel_idle: add BXT support * [Feature] EDAC: Update driver for SKX-SP (LP: #1591815) - [Config] CONFIG_EDAC_SKX=m - EDAC, skx_edac: Add EDAC driver for Skylake * [Feature] KBL: Sandy Peak(3168) WiFi/BT support (LP: #1591648) - Bluetooth: Add support for Intel Bluetooth device 3168 [8087:0aa7] * MacBookPro11,4 fails to poweroff or suspend (LP: #1587714) - SAUCE: PCI: Workaround to enable poweroff on Mac Pro 11 * Support Edge Gateway's Bluetooth LED (LP: #1512999) - SAUCE: Bluetooth: Support for LED on Edge Gateways - SAUCE: Bluetooth: Use host bridge subsystem IDs to identify Edge Gateways * Please add support for alps touchpad. (LP: #1616813) - [Config] CONFIG_HID_ALPS=m - HID: add Alps I2C HID Touchpad-Stick support - HID: alps: struct u1_dev *priv is internal to the driver - HID: alps: pass correct sizes to hid_hw_raw_request() - HID: alps: match alps devices in core - HID: alps: a few cleanups * DINO2M - System hangs with a black screen during s4 stress test (LP: #1616781) - x86/power/64: Fix kernel text mapping corruption during image restoration * Xenial update to v4.4.17 stable release (LP: #1611833) - USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails - x86/quirks: Apply nvidia_bugs quirk only on root bus - x86/quirks: Reintroduce scanning of secondary buses - x86/quirks: Add early quirk to reset Apple AirPort card - dmaengine: at_xdmac: align descriptors on 64 bits - dmaengine: at_xdmac: fix residue corruption - dmaengine: at_xdmac: double FIFO flush needed to compute residue - mm, sl[au]b: add __GFP_ATOMIC to the GFP reclaim mask - mm, compaction: abort free scanner if split fails - fs/nilfs2: fix potential underflow in call to crc32_le - mm, compaction: prevent VM_BUG_ON when terminating freeing scanner - mm, meminit: always return a valid node from early_pfn_to_nid
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
verified on my BYT NUC ** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Triaged Status in linux source package in Xenial: Fix Committed Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
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- xenial' to 'verification-done-xenial'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-xenial -- 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Triaged Status in linux source package in Xenial: Fix Committed Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => Medium -- 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Triaged Status in linux source package in Xenial: Fix Committed Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
** Changed in: linux (Ubuntu Xenial) 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Triaged Status in linux source package in Xenial: Fix Committed Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1616894] Re: [BYT] display hotplug doesn't work on console
I've tested the patches myself, and hotplug works with them. ** Description changed: - Baytrail (server) machines can't be booted up without a monitor - connected, because hotplug doesn't work without X. This has been fixed - upstream in v4.8-rc1, four commits need to be backported: + Baytrail (server) machines can't be booted up without a display + connected, because hotplug doesn't work (X kinda works around it). This + has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd + + Test case: + + 1. + - boot without a display attached + - switch to vt1 + - attach the display + - hit a key, the display should wake up + + 2. + - boot with a display + - switch to vt1 + - detach & attach the display + - hit a key, the display should wake up -- 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/1616894 Title: [BYT] display hotplug doesn't work on console Status in linux package in Ubuntu: Triaged Status in linux source package in Xenial: In Progress Bug description: Baytrail (server) machines can't be booted up without a display connected, because hotplug doesn't work (X kinda works around it). This has been fixed upstream in v4.8-rc1, four commits need to be backported: 4570d833390b100 drm/i915/vlv: Make intel_crt_reset() per-encoder 4c732e6ee9e7190 drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init() 21842ea84f161ae drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug() 84c8e0963da434d drm/i915: Enable polling when we don't have hpd Test case: 1. - boot without a display attached - switch to vt1 - attach the display - hit a key, the display should wake up 2. - boot with a display - switch to vt1 - detach & attach the display - hit a key, the display should wake up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616894/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
