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 Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1743797 Title: Xorg not recognizing AMD graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1743797/+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