Thanks for the bug report. It appears the blinking is compiz repeatedly
crashing in the Mesa radeon driver:
[ 2322.696000] compiz[18685]: segfault at 39 ip 00007f6398e0511b sp
00007ffcfb66d320 error 4 in r300_dri.so[7f639879d000+10ab000]
[ 2322.696026] Code: b6 40 2d eb ef 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa
31 f6 e9 95 a2 f9 ff 0f 1f 44 00 00 41 54 48 8d 15 97 b8 b2 00 55 53 <0f> b6 47
39 48 89 f3 48 63 04 82 48 01 d0 3e ff e0 0f 1f 40 00 bd
[ 2325.310971] compiz[18793]: segfault at 39 ip 00007f413ac7311b sp
00007fffd7f9e870 error 4 in r300_dri.so[7f413a60b000+10ab000]
[ 2325.310997] Code: b6 40 2d eb ef 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa
31 f6 e9 95 a2 f9 ff 0f 1f 44 00 00 41 54 48 8d 15 97 b8 b2 00 55 53 <0f> b6 47
39 48 89 f3 48 63 04 82 48 01 d0 3e ff e0 0f 1f 40 00 bd
[ 2327.567322] compiz[18833]: segfault at 39 ip 00007f969a22311b sp
00007fff2653c300 error 4 in r300_dri.so[7f9699bbb000+10ab000]
[ 2327.567347] Code: b6 40 2d eb ef 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa
31 f6 e9 95 a2 f9 ff 0f 1f 44 00 00 41 54 48 8d 15 97 b8 b2 00 55 53 <0f> b6 47
39 48 89 f3 48 63 04 82 48 01 d0 3e ff e0 0f 1f 40 00 bd
Please try using GNOME instead.
** Tags added: radeon
** Summary changed:
- Xorg freeze
+ [radeon] Blinking screen
** Package changed: xorg (Ubuntu) => compiz (Ubuntu)
** Also affects: mesa (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1961561
Title:
[radeon] Blinking screen
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