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authorAlan Cox <alan@linux.intel.com>2009-12-15 16:46:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 07:20:05 -0800
commit8c651311a3a08c1e4815de6933e00a760e498dae (patch)
tree58e4266ae95b6136ca42a5c236153edf20b1ad53 /drivers/video/matrox
parent312d97152faa30ac4c007937ea09c9c27b10e249 (diff)
matroxfb: fix problems with display stability
Regression caused in 2.6.23 and then despite repeated requests never fixed or dealt with (Petr promised to sort it in 2008 but seems to have forgotten). Enough is enough - remove the problem line that was added. If it upsets someone they've had two years to deal with it and at the very least it'll rattle their cage and wake them up. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=9709 Signed-off-by: Alan Cox <alan@linux.intel.com> Reported-by: Damon <account@bugzilla.kernel.org.juxtaposition.net> Tested-by: Ruud van Melick <rvm1974@raketnet.nl> Cc: Petr Vandrovec <VANDROVE@vc.cvut.cz> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Paul A. Clarke <pc@us.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/matrox')
-rw-r--r--drivers/video/matrox/g450_pll.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/video/matrox/g450_pll.c b/drivers/video/matrox/g450_pll.c
index 09f6e045d5be..c15f8a57498e 100644
--- a/drivers/video/matrox/g450_pll.c
+++ b/drivers/video/matrox/g450_pll.c
@@ -368,7 +368,8 @@ static int __g450_setclk(struct matrox_fb_info *minfo, unsigned int fout,
M1064_XDVICLKCTRL_C1DVICLKEN |
M1064_XDVICLKCTRL_DVILOOPCTL |
M1064_XDVICLKCTRL_P1LOOPBWDTCTL;
- matroxfb_DAC_out(minfo, M1064_XDVICLKCTRL, tmp);
+ /* Setting this breaks PC systems so don't do it */
+ /* matroxfb_DAC_out(minfo, M1064_XDVICLKCTRL, tmp); */
matroxfb_DAC_out(minfo, M1064_XPWRCTRL,
xpwrctrl);