I installed 'linux-generic-hwe-16.04', as suggested, but there's no change. Perhaps because the radeon.modeset=0 is still in my system - but I can't find where. My boot sequence no longer shows radeon.modeset=0, but it came up when I ran dmesg | egrep | 'drm|radeon'. I've included both outputs below.
I checked all versions of the boot sequence, including the 4.4.0-104 versions, specified in the dmesg output. The recovery mode has 'nomodeset', but no radeon.modeset=0. I included outputs of the 4.4.0-104 generic and recovery boot sequences below, in case they'd be of use. Can you tell me how to get at the radeon.modeset=0 settings to remove them, or if you think that's not the problem, offer any other suggestions? My knowledge of Linux is miniscule. Thanks. My boot sequence: recordfail load_video gfxmode $linux_gfx_mode insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod ext2 set root='hd0,msdos5' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 123f436f-0331-4097-8a8e-54cc927298c4 else search --no-floppy --fs-uuid --set=root 123f436f-0331-4097-8a8e-54cc927298c4 fi linux /boot/vmlinuz-4.13.0-26-generic root=UUID=123f436f-0331-4097-8a8e-54cc927298c4 ro drm.debug=0xe plymouth:debug initrd /boot/initrd.img-4.13.0-26-generic dmesg | egrep | 'drmradeon': greta@NSH-HP-Compaq-nc6400-RB523UA-ABA:~$ dmesg | egrep 'drm|radeon' [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-104-generic root=UUID=123f436f-0331-4097-8a8e-54cc927298c4 ro radeon.modeset=0 [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-104-generic root=UUID=123f436f-0331-4097-8a8e-54cc927298c4 ro radeon.modeset=0 [ 2.935307] [drm] Initialized drm 1.1.0 20060810 [ 3.022679] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon module! [ 21.247887] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon module! 4.4.0-104 generic boot sequence: recordfail load_video gfxmode $linux_gfx_mode insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod ext2 set root='hd0,msdos5' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 123f436f-0331-4097-8a8e-54cc927298c4 else search --no-floppy --fs-uuid --set=root 123f436f-0331-4097-8a8e-54cc927298c4 fi echo 'Loading Linux 4.4.0-104-generic ...' linux /boot/vmlinuz-4.4.0-104-generic root=UUID=123f436f-0331-4097-8a8e-54cc927298c4 ro drm.debug=0xe plymouth:debug echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-4.4.0-104-generic 4.4.0-104 generic (recovery mode) boot sequence: Recovery mode recordfail load_video insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_msdos insmod ext2 set root='hd0,msdos5' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 123f436f-0331-4097-8a8e-54cc927298c4 else search --no-floppy --fs-uuid --set=root 123f436f-0331-4097-8a8e-54cc927298c4 fi echo 'Loading Linux 4.4.0-104-generic ...' linux /boot/vmlinuz-4.4.0-104-generic root=UUID=123f436f-0331-4097-8a8e-54cc927298c4 ro recovery nomodeset echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-4.4.0-104-generic -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1743797 Title: Xorg not recognizing AMD graphics card Status in xorg package in Ubuntu: Incomplete Bug description: A few months after upgrading to Ubuntu 16.04, my graphics card stopped working. I got a black screen after booting. I was able to work around that problem, and then around the problem of losing my external display when I closed my laptop lid, so I can now boot normally and have only one problem - I still only have software rendering, which isn't up to the job. I checked my graphics card and it was on the list of fully supported versions. I found work-arounds online for my other problems, but no way to fix this one, which results in choppy video with audio out of sync. I trust the apport report which should be attached will give you the specs you need. Thanks. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-104.127-generic 4.4.98 Uname: Linux 4.4.0-104-generic x86_64 .tmp.unity_support_test.1: ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Wed Jan 17 10:15:32 2018 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] RV515/M52 [Mobility Radeon X1300] [1002:714a] (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company RV515/M52 [Mobility Radeon X1300] [103c:30ac] InstallationDate: Installed on 2014-04-10 (1378 days ago) InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release amd64 (20140204) MachineType: Hewlett-Packard HP Compaq nc6400 (RB523UA#ABA) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcEnviron: LANGUAGE=en_CA:en PATH=(custom, no user) LANG=en_CA.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-104-generic root=UUID=123f436f-0331-4097-8a8e-54cc927298c4 ro radeon.modeset=0 Renderer: Software SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/18/2006 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68YCD Ver. F.08 dmi.board.name: 30AC dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 56.34 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68YCDVer.F.08:bd12/18/2006:svnHewlett-Packard:pnHPCompaqnc6400(RB523UA#ABA):pvrF.08:rvnHewlett-Packard:rn30AC:rvrKBCVersion56.34:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP Compaq nc6400 (RB523UA#ABA) dmi.product.version: F.08 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.83-1~16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.4-0ubuntu1~16.04.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.4-0ubuntu1~16.04.2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Wed Jan 17 08:23:08 2018 xserver.configfile: default xserver.errors: open /dev/dri/card0: No such file or directory open /dev/dri/card0: No such file or directory Screen 0 deleted because of no matching config section. Screen 0 deleted because of no matching config section. AIGLX: reverting to software rendering xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.18.4-0ubuntu0.7 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1743797/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp