[Kernel-packages] [Bug 1369633] Re: 4k laptop eDP display not working on newer laptops
** Changed in: hwe-next Status: New => 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/1369633 Title: 4k laptop eDP display not working on newer laptops Status in HWE Next Project: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Trusty: Fix Released Bug description: Impact: Some new laptops with 4k screens are starting to use dp 1.2 only feature of supporting 5.4ghz link rates over displayport which was not turned on until 3.15 even though the plumbing for it was (mostly) there. This should only make more devices work since it has to advertise support for the feature in the dpcd. previously dp 1.2 screens which needed 5.4ghz link rates were forced to use 2.7ghz instead, which would not provide enough bandwidth for some high resolution/high bandwidth screens. It only affects haswell for trusty, broadwell is handled through i915_bdw module which already as this fix and the fix was upstream in 3.15-rc1 so utopic is unaffected. Fix: Allow the 5.4ghz link rate over displayport. This has been tested on an affected OEM laptop with a 4K display that requires 5.4ghz link rate to light up (without it the display never turns on) as well as 2 other haswell machines to be sure it doesn't regress. [ 5.297037] [drm:intel_modeset_stage_output_state] [CONNECTOR:16:eDP-1] to [CRTC:5] [ 5.297038] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 5.297040] [drm:connected_sink_compute_bpp] [CONNECTOR:16:eDP-1] checking for sink bpp constrains [ 5.297042] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 14 pixel clock 533250KHz [ 5.297045] [drm:intel_dp_compute_config] DP link bw 14 lane count 4 clock 54 bpp 24 [ 5.297046] [drm:intel_dp_compute_config] DP link bw required 1279800 available 1728000 [ 5.297047] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1369633/+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 1369633] Re: 4k laptop eDP display not working on newer laptops
** Branch linked: lp:ubuntu/precise-security/linux-lts-trusty -- 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/1369633 Title: 4k laptop eDP display not working on newer laptops Status in HWE Next Project: New Status in “linux” package in Ubuntu: Fix Released Status in “linux” source package in Trusty: Fix Released Bug description: Impact: Some new laptops with 4k screens are starting to use dp 1.2 only feature of supporting 5.4ghz link rates over displayport which was not turned on until 3.15 even though the plumbing for it was (mostly) there. This should only make more devices work since it has to advertise support for the feature in the dpcd. previously dp 1.2 screens which needed 5.4ghz link rates were forced to use 2.7ghz instead, which would not provide enough bandwidth for some high resolution/high bandwidth screens. It only affects haswell for trusty, broadwell is handled through i915_bdw module which already as this fix and the fix was upstream in 3.15-rc1 so utopic is unaffected. Fix: Allow the 5.4ghz link rate over displayport. This has been tested on an affected OEM laptop with a 4K display that requires 5.4ghz link rate to light up (without it the display never turns on) as well as 2 other haswell machines to be sure it doesn't regress. [ 5.297037] [drm:intel_modeset_stage_output_state] [CONNECTOR:16:eDP-1] to [CRTC:5] [ 5.297038] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 5.297040] [drm:connected_sink_compute_bpp] [CONNECTOR:16:eDP-1] checking for sink bpp constrains [ 5.297042] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 14 pixel clock 533250KHz [ 5.297045] [drm:intel_dp_compute_config] DP link bw 14 lane count 4 clock 54 bpp 24 [ 5.297046] [drm:intel_dp_compute_config] DP link bw required 1279800 available 1728000 [ 5.297047] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1369633/+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 1369633] Re: 4k laptop eDP display not working on newer laptops
This bug was fixed in the package linux - 3.13.0-37.64
---
linux (3.13.0-37.64) trusty; urgency=low
[ Joseph Salisbury ]
* Release Tracking Bug
- LP: #1372576
[ dann frazier ]
* [Config] CONFIG_HW_RANDOM_XGENE=m on arm64
[ Edward Lin ]
* SAUCE: Add use_native_backlight quirk for Dell Inspiron 5721/3521
- LP: #1354253, #1354313
[ Tim Gardner ]
* SAUCE: Fix nfs oops stable regression
- LP: #1348670
* [Config] Add mpt3sas to d-i
- LP: #1368907
* [Config] CONFIG_X86_16BIT=y
- LP: #1371601
[ Timo Aaltonen ]
* SAUCE: i915_bdw: Rebase to v3.15.8
- LP: #1359213
[ Upstream Kernel Changes ]
* Revert "x86-64, modify_ldt: Make support for 16-bit segments a runtime
option"
- LP: #1371601
* mmc: rtsx: add R1-no-CRC mmc command type handle
- LP: #1365378
* rpc_pipe: remove the clntXX dir if creating the pipe fails
- LP: #1365869
* sunrpc: add an "info" file for the dummy gssd pipe
- LP: #1365869
* rpc_pipe: fix cleanup of dummy gssd directory when notification fails
- LP: #1365869
* hwrng: xgene - add support for APM X-Gene SoC RNG support
- LP: #1365593
* Documentation: rng: Add X-Gene SoC RNG driver documentation
- LP: #1365593
* arm64: dts: add random number generator dts node to APM X-Gene
platform.
- LP: #1365593
* xen/balloon: cancel ballooning if adding new memory failed
- LP: #1304001
* x86/xen: resume timer irqs early
- LP: #1368724
* xen/manage: Always freeze/thaw processes when suspend/resuming
- LP: #1368724
* scsi_transport_sas: move bsg destructor into sas_rphy_remove
- LP: #1368991
* drm/i915: Enable 5.4Ghz (HBR2) link rate for Displayport 1.2-capable
devices
- LP: #1369633
* bnx2x: Fix link for KR with swapped polarity lane
- LP: #1370716
* drm: add DRM_CAPs for cursor size
- LP: #1359213
* drm/dp: Add AUX channel infrastructure
- LP: #1359213
* drm/dp: Add drm_dp_dpcd_read_link_status()
- LP: #1359213
* drm/dp: Add DisplayPort link helpers
- LP: #1359213
* drm/dp: Allow registering AUX channels as I2C busses
- LP: #1359213
* drm/dp: let drivers specify the name of the I2C-over-AUX adapter
- LP: #1359213
* drm/dp: make aux retries less chatty
- LP: #1359213
* Bluetooth: Enable Atheros 0cf3:311e for firmware upload
- LP: #1371477
* bnx2x: fix crash during TSO tunneling
- LP: #1371601
* inetpeer: get rid of ip_id_count
- LP: #1371601
* ip: make IP identifiers less predictable
- LP: #1371601
* tcp: Fix integer-overflows in TCP veno
- LP: #1371601
* tcp: Fix integer-overflow in TCP vegas
- LP: #1371601
* macvlan: Initialize vlan_features to turn on offload support.
- LP: #1371601
* net: Correctly set segment mac_len in skb_segment().
- LP: #1371601
* iovec: make sure the caller actually wants anything in
memcpy_fromiovecend
- LP: #1371601
* batman-adv: Fix out-of-order fragmentation support
- LP: #1371601
* sctp: fix possible seqlock seadlock in sctp_packet_transmit()
- LP: #1371601
* sparc64: Fix argument sign extension for compat_sys_futex().
- LP: #1371601
* sparc64: Make itc_sync_lock raw
- LP: #1371601
* sparc64: Fix executable bit testing in set_pmd_at() paths.
- LP: #1371601
* sparc64: Fix huge PMD invalidation.
- LP: #1371601
* sparc64: Fix bugs in get_user_pages_fast() wrt. THP.
- LP: #1371601
* sparc64: Fix hex values in comment above pte_modify().
- LP: #1371601
* sparc64: Don't use _PAGE_PRESENT in pte_modify() mask.
- LP: #1371601
* sparc64: Handle 32-bit tasks properly in compute_effective_address().
- LP: #1371601
* sparc64: Fix top-level fault handling bugs.
- LP: #1371601
* sparc64: Fix range check in kern_addr_valid().
- LP: #1371601
* sparc64: Use 'ILOG2_4MB' instead of constant '22'.
- LP: #1371601
* sparc64: Add basic validations to {pud,pmd}_bad().
- LP: #1371601
* sparc64: Give more detailed information in {pgd,pmd}_ERROR() and kill
pte_ERROR().
- LP: #1371601
* sparc64: Don't bark so loudly about 32-bit tasks generating 64-bit
fault addresses.
- LP: #1371601
* sparc64: Fix huge TSB mapping on pre-UltraSPARC-III cpus.
- LP: #1371601
* sparc64: Add membar to Niagara2 memcpy code.
- LP: #1371601
* sparc64: Do not insert non-valid PTEs into the TSB hash table.
- LP: #1371601
* sparc64: Guard against flushing openfirmware mappings.
- LP: #1371601
* bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000
- LP: #1371601
* sunsab: Fix detection of BREAK on sunsab serial console
- LP: #1371601
* sparc64: ldc_connect() should not return EINVAL when handshake is in
progress.
- LP: #1371601
* arch/sparc/math-emu/math_32.c: drop stray break operator
- LP: #1371601
* x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit stack
- LP: #1371601
* x86, espfix: Move espfix def
[Kernel-packages] [Bug 1369633] Re: 4k laptop eDP display not working on newer laptops
** Branch linked: lp:ubuntu/trusty-proposed/linux-keystone -- 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/1369633 Title: 4k laptop eDP display not working on newer laptops Status in HWE Next Project: New Status in “linux” package in Ubuntu: Fix Released Status in “linux” source package in Trusty: Fix Committed Bug description: Impact: Some new laptops with 4k screens are starting to use dp 1.2 only feature of supporting 5.4ghz link rates over displayport which was not turned on until 3.15 even though the plumbing for it was (mostly) there. This should only make more devices work since it has to advertise support for the feature in the dpcd. previously dp 1.2 screens which needed 5.4ghz link rates were forced to use 2.7ghz instead, which would not provide enough bandwidth for some high resolution/high bandwidth screens. It only affects haswell for trusty, broadwell is handled through i915_bdw module which already as this fix and the fix was upstream in 3.15-rc1 so utopic is unaffected. Fix: Allow the 5.4ghz link rate over displayport. This has been tested on an affected OEM laptop with a 4K display that requires 5.4ghz link rate to light up (without it the display never turns on) as well as 2 other haswell machines to be sure it doesn't regress. [ 5.297037] [drm:intel_modeset_stage_output_state] [CONNECTOR:16:eDP-1] to [CRTC:5] [ 5.297038] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 5.297040] [drm:connected_sink_compute_bpp] [CONNECTOR:16:eDP-1] checking for sink bpp constrains [ 5.297042] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 14 pixel clock 533250KHz [ 5.297045] [drm:intel_dp_compute_config] DP link bw 14 lane count 4 clock 54 bpp 24 [ 5.297046] [drm:intel_dp_compute_config] DP link bw required 1279800 available 1728000 [ 5.297047] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1369633/+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 1369633] Re: 4k laptop eDP display not working on newer laptops
I have verified kernel 3.13.0-37.64 from trusty-proposed and it does fix the problem. ** Tags removed: verification-needed-trusty ** Tags added: verification-done-trusty -- 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/1369633 Title: 4k laptop eDP display not working on newer laptops Status in HWE Next Project: New Status in “linux” package in Ubuntu: Fix Released Status in “linux” source package in Trusty: Fix Committed Bug description: Impact: Some new laptops with 4k screens are starting to use dp 1.2 only feature of supporting 5.4ghz link rates over displayport which was not turned on until 3.15 even though the plumbing for it was (mostly) there. This should only make more devices work since it has to advertise support for the feature in the dpcd. previously dp 1.2 screens which needed 5.4ghz link rates were forced to use 2.7ghz instead, which would not provide enough bandwidth for some high resolution/high bandwidth screens. It only affects haswell for trusty, broadwell is handled through i915_bdw module which already as this fix and the fix was upstream in 3.15-rc1 so utopic is unaffected. Fix: Allow the 5.4ghz link rate over displayport. This has been tested on an affected OEM laptop with a 4K display that requires 5.4ghz link rate to light up (without it the display never turns on) as well as 2 other haswell machines to be sure it doesn't regress. [ 5.297037] [drm:intel_modeset_stage_output_state] [CONNECTOR:16:eDP-1] to [CRTC:5] [ 5.297038] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 5.297040] [drm:connected_sink_compute_bpp] [CONNECTOR:16:eDP-1] checking for sink bpp constrains [ 5.297042] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 14 pixel clock 533250KHz [ 5.297045] [drm:intel_dp_compute_config] DP link bw 14 lane count 4 clock 54 bpp 24 [ 5.297046] [drm:intel_dp_compute_config] DP link bw required 1279800 available 1728000 [ 5.297047] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1369633/+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 1369633] Re: 4k laptop eDP display not working on newer laptops
** Summary changed: - 4k laptop eDP display not working on a dell precision m3800 + 4k laptop eDP display not working on newer laptops -- 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/1369633 Title: 4k laptop eDP display not working on newer laptops Status in HWE Next Project: New Status in “linux” package in Ubuntu: Fix Released Status in “linux” source package in Trusty: Fix Committed Bug description: Impact: Some new laptops with 4k screens are starting to use dp 1.2 only feature of supporting 5.4ghz link rates over displayport which was not turned on until 3.15 even though the plumbing for it was (mostly) there. This should only make more devices work since it has to advertise support for the feature in the dpcd. previously dp 1.2 screens which needed 5.4ghz link rates were forced to use 2.7ghz instead, which would not provide enough bandwidth for some high resolution/high bandwidth screens. It only affects haswell for trusty, broadwell is handled through i915_bdw module which already as this fix and the fix was upstream in 3.15-rc1 so utopic is unaffected. Fix: Allow the 5.4ghz link rate over displayport. This has been tested on an affected OEM laptop with a 4K display that requires 5.4ghz link rate to light up (without it the display never turns on) as well as 2 other haswell machines to be sure it doesn't regress. [ 5.297037] [drm:intel_modeset_stage_output_state] [CONNECTOR:16:eDP-1] to [CRTC:5] [ 5.297038] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0 [ 5.297040] [drm:connected_sink_compute_bpp] [CONNECTOR:16:eDP-1] checking for sink bpp constrains [ 5.297042] [drm:intel_dp_compute_config] DP link computation with max lane count 4 max bw 14 pixel clock 533250KHz [ 5.297045] [drm:intel_dp_compute_config] DP link bw 14 lane count 4 clock 54 bpp 24 [ 5.297046] [drm:intel_dp_compute_config] DP link bw required 1279800 available 1728000 [ 5.297047] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1369633/+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
