[Bug #17151] i915: 2.6.36-rc2 hoses my Intel display

2010-08-30 Thread Rafael J. Wysocki
On Monday, August 30, 2010, Jonathan Corbet wrote: > On Mon, 30 Aug 2010 00:36:36 +0200 (CEST) > "Rafael J. Wysocki" wrote: > > > The following bug entry is on the current list of known regressions > > from 2.6.35. Please verify if it still should be listed and let the > > tracking team > > kno

Re: [Bug #17151] i915: 2.6.36-rc2 hoses my Intel display

2010-08-30 Thread Rafael J. Wysocki
On Monday, August 30, 2010, Jonathan Corbet wrote: > On Mon, 30 Aug 2010 00:36:36 +0200 (CEST) > "Rafael J. Wysocki" wrote: > > > The following bug entry is on the current list of known regressions > > from 2.6.35. Please verify if it still should be listed and let the > > tracking team > > kno

i915: 2.6.36-rc2 hoses my Intel display

2010-08-26 Thread Maciej Rutecki
On poniedzia?ek, 23 sierpnia 2010 o 19:01:45 Jonathan Corbet wrote: > So I decided to fire up -rc2 today to see what would happen...the > results are best described by the attached images. Something is > clearly scrambled between my hardware and the i915 driver. Display with X > is hosed, but thi

Re: i915: 2.6.36-rc2 hoses my Intel display

2010-08-26 Thread Maciej Rutecki
On poniedziaƂek, 23 sierpnia 2010 o 19:01:45 Jonathan Corbet wrote: > So I decided to fire up -rc2 today to see what would happen...the > results are best described by the attached images. Something is > clearly scrambled between my hardware and the i915 driver. Display with X > is hosed, but thi

[now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-24 Thread Chris Wilson
On Tue, 24 Aug 2010 07:16:26 -0600, Jonathan Corbet wrote: > On Tue, 24 Aug 2010 00:55:54 +0100 > Chris Wilson wrote: > > > In threes. Hmm, one for primary, cursor and self-refresh. drm.debug=0xe > > would be interesting to see what the pixel clock is. > > > > Can you grab one before the bad co

[now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-24 Thread Jonathan Corbet
On Tue, 24 Aug 2010 00:55:54 +0100 Chris Wilson wrote: > In threes. Hmm, one for primary, cursor and self-refresh. drm.debug=0xe > would be interesting to see what the pixel clock is. > > Can you grab one before the bad commit and one after? If there is a change > that may help pin-point the mis

Re: [now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-24 Thread Chris Wilson
On Tue, 24 Aug 2010 07:16:26 -0600, Jonathan Corbet wrote: > On Tue, 24 Aug 2010 00:55:54 +0100 > Chris Wilson wrote: > > > In threes. Hmm, one for primary, cursor and self-refresh. drm.debug=0xe > > would be interesting to see what the pixel clock is. > > > > Can you grab one before the bad co

[now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-24 Thread Chris Wilson
On Mon, 23 Aug 2010 17:46:41 -0600, Jonathan Corbet wrote: > On Tue, 24 Aug 2010 00:37:52 +0100 > Chris Wilson wrote: > > > drm.debug=0x4 should print the right information for this bug. > > That doesn't seem to give me any output at all. > > One thing I noticed, though, is that I occasionally

[now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-24 Thread Chris Wilson
On Mon, 23 Aug 2010 17:32:25 -0600, Jonathan Corbet wrote: > On Mon, 23 Aug 2010 23:36:55 +0100 > Chris Wilson wrote: > > > Taking the patch at face value, the cause should be a mistake in error > > handling. So the first step would be to identify which i2c_transfer() > > failed. > > OK, I trie

[now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Chris Wilson
On Mon, 23 Aug 2010 15:17:08 -0600, Jonathan Corbet wrote: > I went ahead and bisected the problem, which was added between -rc1 and > -rc2. The end result is this: Taking the patch at face value, the cause should be a mistake in error handling. So the first step would be to identify which i2c_t

[now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Jonathan Corbet
On Tue, 24 Aug 2010 00:37:52 +0100 Chris Wilson wrote: > drm.debug=0x4 should print the right information for this bug. That doesn't seem to give me any output at all. One thing I noticed, though, is that I occasionally get something like: Aug 23 17:43:14 bike kernel: [ 142.920185] [drm:intel

[now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Jonathan Corbet
On Mon, 23 Aug 2010 23:36:55 +0100 Chris Wilson wrote: > Taking the patch at face value, the cause should be a mistake in error > handling. So the first step would be to identify which i2c_transfer() > failed. OK, I tried it, but neither warning triggers. Don't know if it helps or not, but I tr

Re: [now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Chris Wilson
On Mon, 23 Aug 2010 17:46:41 -0600, Jonathan Corbet wrote: > On Tue, 24 Aug 2010 00:37:52 +0100 > Chris Wilson wrote: > > > drm.debug=0x4 should print the right information for this bug. > > That doesn't seem to give me any output at all. > > One thing I noticed, though, is that I occasionally

Re: [now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Jonathan Corbet
On Tue, 24 Aug 2010 00:37:52 +0100 Chris Wilson wrote: > drm.debug=0x4 should print the right information for this bug. That doesn't seem to give me any output at all. One thing I noticed, though, is that I occasionally get something like: Aug 23 17:43:14 bike kernel: [ 142.920185] [drm:intel

Re: [now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Chris Wilson
On Mon, 23 Aug 2010 17:32:25 -0600, Jonathan Corbet wrote: > On Mon, 23 Aug 2010 23:36:55 +0100 > Chris Wilson wrote: > > > Taking the patch at face value, the cause should be a mistake in error > > handling. So the first step would be to identify which i2c_transfer() > > failed. > > OK, I trie

Re: [now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Jonathan Corbet
On Mon, 23 Aug 2010 23:36:55 +0100 Chris Wilson wrote: > Taking the patch at face value, the cause should be a mistake in error > handling. So the first step would be to identify which i2c_transfer() > failed. OK, I tried it, but neither warning triggers. Don't know if it helps or not, but I tr

Re: [now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Chris Wilson
On Mon, 23 Aug 2010 15:17:08 -0600, Jonathan Corbet wrote: > I went ahead and bisected the problem, which was added between -rc1 and > -rc2. The end result is this: Taking the patch at face value, the cause should be a mistake in error handling. So the first step would be to identify which i2c_t

[now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Jonathan Corbet
On Mon, 23 Aug 2010 11:01:45 -0600 Jonathan Corbet wrote: > So I decided to fire up -rc2 today to see what would happen...the > results are best described by the attached images. Something is > clearly scrambled between my hardware and the i915 driver. Display with X > is hosed, but things go w

Re: [now bisected] i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Jonathan Corbet
On Mon, 23 Aug 2010 11:01:45 -0600 Jonathan Corbet wrote: > So I decided to fire up -rc2 today to see what would happen...the > results are best described by the attached images. Something is > clearly scrambled between my hardware and the i915 driver. Display with X > is hosed, but things go w

i915: 2.6.36-rc2 hoses my Intel display

2010-08-23 Thread Jonathan Corbet
So I decided to fire up -rc2 today to see what would happen...the results are best described by the attached images. Something is clearly scrambled between my hardware and the i915 driver. Display with X is hosed, but things go weird before X gets a chance to run (it is worth noting that the init