From: Andres F. <an...@an...> - 2009-12-26 17:44:34
Attachments:
dmesg-after-disabling
lspcivvv
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Hi Zhao, On 2.6.33-rc1 I noticed that the display of my T500 with a G45 reacts very slowly (you can see the text appearing) and colors take a time to "solidify". I.e. making a white terminal black takes some seconds. After some bisecting and guessing I recognized that the problem showed up after: commit 18f9ed12f8c977e25d65a16af8e8d73f72417ba1 Author: Zhao Yakui <yak...@in...> Date: Fri Nov 20 03:24:16 2009 +0000 drm/i915: Enable LVDS downclock feature through EDID. If more than one mode with the same resolution defined in EDID has different refresh rate, it is thought that the downclock is found for LVDS. We will program the different FPx0/1 register so that we can select dynamically between the low and high frequency. On the g4x platform we will use the CxSR feature to switch the different refresh rate if the LVDS downclock feature is supported. Signed-off-by: Zhao Yakui <yak...@in...> Reviewed-by: Jesse Barnes <jb...@vi...> Signed-off-by: Eric Anholt <er...@an...> Setting dev_priv->lvds_downclock_avail = 0 in intel_find_lvds_downclock() unsurprisingly avoids the issue. Anything I can do to help analyzing the issue? Andres |
From: Andres F. <an...@an...> - 2009-12-26 17:42:22
Attachments:
.config
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On Saturday 26 December 2009 17:49:29 Andres Freund wrote: > On 2.6.33-rc1 I noticed that the display of my T500 with a G45 reacts very > slowly (you can see the text appearing) and colors take a time to > "solidify". I.e. making a white terminal black takes some seconds. > ... > Anything I can do to help analyzing the issue? Thats with recent git checkouts of xorg btw, if thats relevant (which I doubt a bit). The missing config is attached now as well. Andres |
From: ykzhao <yak...@in...> - 2009-12-27 13:13:48
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On Sun, 2009-12-27 at 01:41 +0800, Andres Freund wrote: > On Saturday 26 December 2009 17:49:29 Andres Freund wrote: > > On 2.6.33-rc1 I noticed that the display of my T500 with a G45 reacts very > > slowly (you can see the text appearing) and colors take a time to > > "solidify". I.e. making a white terminal black takes some seconds. > > ... > > Anything I can do to help analyzing the issue? > Thats with recent git checkouts of xorg btw, if thats relevant (which I doubt > a bit). > > The missing config is attached now as well. It will be great if you can open a new bug on bugs.freedesktop.org(Product=xorg, component = driver/intel) and attach the following info: 1. add the boot option of "drm.debug=0x06" and attach the output of dmesg. 2. attach the output of "xrandr -q --verbose" 3. attach the vbios.dump, which can be obtained by using the following command: echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom cat /sys/devices/pci0000:00/0000:00:02.0/rom 4. attach the output of Xorg.0.log Thanks. Yakui. > > Andres |
From: Andres F. <an...@an...> - 2009-12-27 14:19:20
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On Sunday 27 December 2009 14:10:55 ykzhao wrote: > On Sun, 2009-12-27 at 01:41 +0800, Andres Freund wrote: > > On Saturday 26 December 2009 17:49:29 Andres Freund wrote: > > > On 2.6.33-rc1 I noticed that the display of my T500 with a G45 reacts > > > very slowly (you can see the text appearing) and colors take a time to > > > "solidify". I.e. making a white terminal black takes some seconds. ... > > > Anything I can do to help analyzing the issue? > > > > Thats with recent git checkouts of xorg btw, if thats relevant (which I > > doubt a bit). > > > > The missing config is attached now as well. > > It will be great if you can open a new bug on > bugs.freedesktop.org(Product=xorg, component = driver/intel) and attach > the following info: > 1. add the boot option of "drm.debug=0x06" and attach the output of > dmesg. > 2. attach the output of "xrandr -q --verbose" > 3. attach the vbios.dump, which can be obtained by using the > following command: > echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom > cat /sys/devices/pci0000:00/0000:00:02.0/rom > 4. attach the output of Xorg.0.log Is it relevant whether I boot a kernel with the patch really enabled? Andres |
From: ykzhao <yak...@in...> - 2009-12-28 01:27:32
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On Sun, 2009-12-27 at 22:18 +0800, Andres Freund wrote: > On Sunday 27 December 2009 14:10:55 ykzhao wrote: > > On Sun, 2009-12-27 at 01:41 +0800, Andres Freund wrote: > > > On Saturday 26 December 2009 17:49:29 Andres Freund wrote: > > > > On 2.6.33-rc1 I noticed that the display of my T500 with a G45 reacts > > > > very slowly (you can see the text appearing) and colors take a time to > > > > "solidify". I.e. making a white terminal black takes some seconds. ... > > > > Anything I can do to help analyzing the issue? > > > > > > Thats with recent git checkouts of xorg btw, if thats relevant (which I > > > doubt a bit). > > > > > > The missing config is attached now as well. > > > > It will be great if you can open a new bug on > > bugs.freedesktop.org(Product=xorg, component = driver/intel) and attach > > the following info: > > 1. add the boot option of "drm.debug=0x06" and attach the output of > > dmesg. > > 2. attach the output of "xrandr -q --verbose" > > 3. attach the vbios.dump, which can be obtained by using the > > following command: > > echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom > > cat /sys/devices/pci0000:00/0000:00:02.0/rom > > 4. attach the output of Xorg.0.log > Is it relevant whether I boot a kernel with the patch really enabled? I don't know whether it is relevant with my patch. In fact my patch only checks whether the LVDS downclock is found and then set the corresponding flag. Anyway, please open a new bug and I will investigate it. thanks. Yakui > > Andres |
From: Andres F. <an...@an...> - 2009-12-28 13:04:58
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On Monday 28 December 2009 02:24:48 ykzhao wrote: > On Sun, 2009-12-27 at 22:18 +0800, Andres Freund wrote: > > On Sunday 27 December 2009 14:10:55 ykzhao wrote: > > > On Sun, 2009-12-27 at 01:41 +0800, Andres Freund wrote: > > > > On Saturday 26 December 2009 17:49:29 Andres Freund wrote: > > > > > On 2.6.33-rc1 I noticed that the display of my T500 with a G45 > > > > > reacts very slowly (you can see the text appearing) and colors take > > > > > a time to "solidify". I.e. making a white terminal black takes some > > > > > seconds. ... Anything I can do to help analyzing the issue? > > > > > > > > Thats with recent git checkouts of xorg btw, if thats relevant (which > > > > I doubt a bit). > > > > > > > > The missing config is attached now as well. > > > > > > It will be great if you can open a new bug on > > > bugs.freedesktop.org(Product=xorg, component = driver/intel) and attach > > > the following info: > > > 1. add the boot option of "drm.debug=0x06" and attach the output of > > > dmesg. > > > 2. attach the output of "xrandr -q --verbose" > > > 3. attach the vbios.dump, which can be obtained by using the > > > following command: > > > echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom > > > cat /sys/devices/pci0000:00/0000:00:02.0/rom > > > 4. attach the output of Xorg.0.log > Anyway, please open a new bug and I will investigate it. Created as #25809. Andres |