git-bisect start
# bad: [f5ad42f0ceef78f6fac490bcc40d56d0ce8c9e2e] Bump version 2.3.1
git-bisect bad f5ad42f0ceef78f6fac490bcc40d56d0ce8c9e2e
# good: [259ad818f2b7ac63fb84516e8a49e264840af107] Bump version 2.3.0
git-bisect good 259ad818f2b7ac63fb84516e8a49e264840af107
# good: [ab0aa8e16c6bec2785006cee09dc1ae93a1988da] Add FIFO watermark regs to register dumper (cherry picked from commit 0c00a638ef57aa9d6a3047176b0bfad733f781f0)
git-bisect good ab0aa8e16c6bec2785006cee09dc1ae93a1988da
# bad: [3b8804d82266ffc01ac1573624387b0d1f9dfb94] Save/restore cursor registers
git-bisect bad 3b8804d82266ffc01ac1573624387b0d1f9dfb94
# bad: [0ab5cbc5310c2a60c10fd611fcf9a4791379f42b] Use I830FALLBACK when check pitch for debug (cherry picked from commit a7188b1f2dd9a69fa7daefe478d283735226f9f3)
git-bisect bad 0ab5cbc5310c2a60c10fd611fcf9a4791379f42b
# bad: [5749983fc6bae0a845bff0dbdd79c87420dffcf4] Bug #15807: Fix use of the ring while VT-switched, hit by fast user switching.
git-bisect bad 5749983fc6bae0a845bff0dbdd79c87420dffcf4