There's nothing graphics related here: $ git log v4.15-rc2..a0da456bbf95d2a9294799bb --oneline a0da456 net: phy-micrel: check return code in flp center function c7799c0 tipc: call tipc_rcv() only if bearer is up in tipc_udp_recv() cfac7f8 tcp/dccp: block bh before arming time_wait timer b484d8a Merge branch 'sctp-prsctp-chunk-fixes' 779edd7 sctp: do not abandon the other frags in unsent outq if one msg has outstanding frags e5f6129 sctp: abandon the whole msg if one part of a fragmented message is abandoned d30fc51 sctp: only update outstanding_bytes for transmitted queue when doing prsctp_prune 6fef90c net: dsa: bcm_sf2: Set correct CHAIN_ID and slice number mask f859b4a sit: update frag_off info 3016dad tcp: remove buggy call to tcp_v6_restore_cb() 90a6ec8 act_sample: get rid of tcf_sample_cleanup_rcu() 6c9257a Merge tag 'rxrpc-fixes-20171129' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs 1c08ac0 net: stmmac: dwmac-sun8i: fix allwinner,leds-active-low handling f8821f9 skbuff: Grammar s/are can/can/, s/change/changes/ a154f8e net: mvpp2: allocate zeroed tx descriptors 282ef47 rxrpc: Fix variable overwrite 5fc62f6 rxrpc: Fix ACK generation from the connection event processor 3d7682a rxrpc: Clean up whitespace
Yet I have double checked that, according /var/log/kern.log, - I booted this kernel: Apr 18 13:18:29 david-desktop kernel: [ 0.000000] Linux version 4.15.0-041500rc1-generic (jsalisbury@kathleen) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #20180417120 - I got black screen and the following message: Apr 18 13:18:29 david-desktop kernel: [ 1.667490] [drm] Cannot find any crtc or sizes And when I last booted this kernel: Apr 17 06:17:34 david-desktop kernel: [ 0.000000] Linux version 4.15.0-041500rc2-generic (kernel@gloin) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3)) #201712031230 SMP Sun Dec 3 17:32:03 UTC 2017 ...it works just fine. -- 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/1761751 Title: Black screen on 18.04 + AMD RX460 Status in linux package in Ubuntu: In Progress Status in linux source package in Bionic: In Progress Bug description: I've been running 16.04 + hwe kernel 4.15 for a while now and recently I'm now having a black screen instead. I've also tried an 18.04 daily live USB stick, which has the same issue. It probably started during an upgrade this week or last week. As a start I'm blaming the Linux kernel since booting a 4.13 kernel works just fine. Known faulty kernel versions are: * linux-image-4.15.0-041500-generic (mainline kernel), * linux-image-4.16.0-041600-generic (mainline kernel), * linux-image-4.15.0-13-generic (Ubuntu kernel), * whatever comes with 18.04 daily live USB stick as of 20180404. Not sure how to best collect logs and system information for you since I'm not used to debugging black screens, so I'm just attaching lspci as a start. EDIT: Workaround found by adding "amdgpu.dc=0" to kernel boot parameters. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1761751/+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
