diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 92e6886..30893ef 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
 -887,6 +887,12 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
                p1pll->pll_out_max =
                    le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);
 
+               DRM_INFO("crev %d, lcdmin %d, lcdmax %d, min %d, max %d\n", 
+                        crev, 
+                        le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output),
+                        le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output),
+                        p1pll->pll_out_min, p1pll->pll_out_max);
+
                if (crev >= 4) {
                        p1pll->lcd_pll_out_min =
                                le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
 -1150,6 +1156,24 @@ static void radeon_atom_apply_lvds_quirks(struct drm_device *dev,
                        lvds->pll_algo = PLL_ALGO_LEGACY;
        }
 
+       /* Lenovo T500 laptop seems to have invalid pll clocks */
+       if ((dev->pdev->device == 0x9591) &&
+           (dev->pdev->subsystem_vendor == 0x17aa) &&
+           (dev->pdev->subsystem_device == 0x2117)) {
+               if ((lvds->native_mode.hdisplay == 1680) &&
+                   (lvds->native_mode.vdisplay == 1050)) {
+                       struct radeon_device *rdev = dev->dev_private;
+                       struct radeon_pll *p1pll = &rdev->clock.p1pll;
+                       struct radeon_pll *p2pll = &rdev->clock.p2pll;
+                       struct radeon_pll *dcpll = &rdev->clock.dcpll;
+                       p1pll->lcd_pll_out_min = p1pll->pll_out_min;
+                       p1pll->lcd_pll_out_max = p1pll->pll_out_max;
+                       *p2pll = *p1pll;
+                       *dcpll = *p1pll;
+                       DRM_INFO("Lenovo T500 detected\n");
+               }
+               
+       }
 }
 
 union lvds_info {