[Bug 14070] New: [Regression] r300 freeze after resume

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=14070

           Summary: [Regression] r300 freeze after resume
           Product: xorg
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Keywords: regression
          Severity: normal
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: piernik at gmail.com
         QAContact: xorg-team at lists.x.org


X300 in IBM Thinkpad T43 freezes/crashes while resuming from suspend to RAM
starting from 6.7.194. It was working perfectly in 6.6.193 and 6.7.193. 6.7.197
and today's git also crashes.

I've found out that using vbetool (vbe post, vbemode restore) after resume
prevents crashing, but I get a garbled screen and must switch to VT and back to
get it clean. Another workaround is to use old (working) driver first, suspend
at least once with it, switch driver and then further suspends/resumes with
current driver work like expected.

I've tracked this problem down to (pretty old) git commit
b27135bce8b41d69290613b440a338b0a7fe0200

but failed reverting it from the master branch (conflicts). Reverting it from
6.7.194 seems to fix this regression for me.


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