Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-22 Thread Simon Ser
On Friday, October 9, 2020 12:25 PM, Brian Starkey wrote: > I assume that this is so that the kernel can apply quirks/limits in > cases where it knows it needs to? I think it would be nice to put at > least a few words indicating "why", otherwise this feels like an > arbitrary commandment with

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-21 Thread Vitaly Prosyak
On 2020-10-21 10:35 a.m., Ville Syrjälä wrote: On Tue, Oct 20, 2020 at 09:46:30PM -0400, Vitaly Prosyak wrote: On 2020-10-20 11:04 a.m., Ville Syrjälä wrote: On Mon, Oct 19, 2020 at 11:08:27PM -0400, Vitaly Prosyak wrote: On 2020-10-19 3:49 a.m., Pekka Paalanen wrote: On Fri, 16 Oct 2020

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-21 Thread Ville Syrjälä
On Tue, Oct 20, 2020 at 09:46:30PM -0400, Vitaly Prosyak wrote: > > On 2020-10-20 11:04 a.m., Ville Syrjälä wrote: > > On Mon, Oct 19, 2020 at 11:08:27PM -0400, Vitaly Prosyak wrote: > >> On 2020-10-19 3:49 a.m., Pekka Paalanen wrote: > >>> On Fri, 16 Oct 2020 16:50:16 +0300 > >>> Ville Syrjälä

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-20 Thread Vitaly Prosyak
On 2020-10-20 11:04 a.m., Ville Syrjälä wrote: On Mon, Oct 19, 2020 at 11:08:27PM -0400, Vitaly Prosyak wrote: On 2020-10-19 3:49 a.m., Pekka Paalanen wrote: On Fri, 16 Oct 2020 16:50:16 +0300 Ville Syrjälä wrote: On Mon, Oct 12, 2020 at 10:11:01AM +0300, Pekka Paalanen wrote: On Fri, 9

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-20 Thread Ville Syrjälä
On Mon, Oct 19, 2020 at 11:08:27PM -0400, Vitaly Prosyak wrote: > > On 2020-10-19 3:49 a.m., Pekka Paalanen wrote: > > On Fri, 16 Oct 2020 16:50:16 +0300 > > Ville Syrjälä wrote: > > > >> On Mon, Oct 12, 2020 at 10:11:01AM +0300, Pekka Paalanen wrote: > >>> On Fri, 9 Oct 2020 17:20:18 +0300 >

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-19 Thread Vitaly Prosyak
On 2020-10-19 3:49 a.m., Pekka Paalanen wrote: On Fri, 16 Oct 2020 16:50:16 +0300 Ville Syrjälä wrote: On Mon, Oct 12, 2020 at 10:11:01AM +0300, Pekka Paalanen wrote: On Fri, 9 Oct 2020 17:20:18 +0300 Ville Syrjälä wrote: On Fri, Oct 09, 2020 at 04:56:51PM +0300, Pekka Paalanen wrote:

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-19 Thread Pekka Paalanen
On Fri, 16 Oct 2020 16:50:16 +0300 Ville Syrjälä wrote: > On Mon, Oct 12, 2020 at 10:11:01AM +0300, Pekka Paalanen wrote: > > On Fri, 9 Oct 2020 17:20:18 +0300 > > Ville Syrjälä wrote: > > > > > On Fri, Oct 09, 2020 at 04:56:51PM +0300, Pekka Paalanen wrote: > > > > On Fri, 9 Oct 2020

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-16 Thread Ville Syrjälä
On Mon, Oct 12, 2020 at 10:11:01AM +0300, Pekka Paalanen wrote: > On Fri, 9 Oct 2020 17:20:18 +0300 > Ville Syrjälä wrote: > > > On Fri, Oct 09, 2020 at 04:56:51PM +0300, Pekka Paalanen wrote: > > > On Fri, 9 Oct 2020 16:10:25 +0300 > > > Ville Syrjälä wrote: > > > > > > > On Fri, Oct 09,

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-12 Thread Pekka Paalanen
On Fri, 9 Oct 2020 17:20:18 +0300 Ville Syrjälä wrote: > On Fri, Oct 09, 2020 at 04:56:51PM +0300, Pekka Paalanen wrote: > > On Fri, 9 Oct 2020 16:10:25 +0300 > > Ville Syrjälä wrote: > > > > > On Fri, Oct 09, 2020 at 01:07:20PM +0100, Daniel Stone wrote: > > > > Hi, > > > > > > > > On

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Ville Syrjälä
On Fri, Oct 09, 2020 at 04:56:51PM +0300, Pekka Paalanen wrote: > On Fri, 9 Oct 2020 16:10:25 +0300 > Ville Syrjälä wrote: > > > On Fri, Oct 09, 2020 at 01:07:20PM +0100, Daniel Stone wrote: > > > Hi, > > > > > > On Fri, 9 Oct 2020 at 10:24, Simon Ser wrote: > > > > User-space should avoid

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Pekka Paalanen
On Fri, 9 Oct 2020 16:10:25 +0300 Ville Syrjälä wrote: > On Fri, Oct 09, 2020 at 01:07:20PM +0100, Daniel Stone wrote: > > Hi, > > > > On Fri, 9 Oct 2020 at 10:24, Simon Ser wrote: > > > User-space should avoid parsing EDIDs for metadata already exposed via > > > other KMS interfaces and

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Ville Syrjälä
On Fri, Oct 09, 2020 at 01:07:20PM +0100, Daniel Stone wrote: > Hi, > > On Fri, 9 Oct 2020 at 10:24, Simon Ser wrote: > > User-space should avoid parsing EDIDs for metadata already exposed via > > other KMS interfaces and properties. For instance, user-space should not > > try to extract a list

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Daniel Stone
Hi, On Fri, 9 Oct 2020 at 10:24, Simon Ser wrote: > User-space should avoid parsing EDIDs for metadata already exposed via > other KMS interfaces and properties. For instance, user-space should not > try to extract a list of modes from the EDID: the kernel might mutate > the mode list (because

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Pekka Paalanen
On Fri, 9 Oct 2020 11:48:44 +0200 Thomas Zimmermann wrote: > Hi > > Am 09.10.20 um 11:24 schrieb Simon Ser: > > User-space should avoid parsing EDIDs for metadata already exposed via > > other KMS interfaces and properties. For instance, user-space should not > > try to extract a list of modes

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Brian Starkey
On Fri, Oct 09, 2020 at 09:24:01AM +, Simon Ser wrote: > User-space should avoid parsing EDIDs for metadata already exposed via > other KMS interfaces and properties. For instance, user-space should not > try to extract a list of modes from the EDID: the kernel might mutate > the mode list

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Thomas Zimmermann
Hi Am 09.10.20 um 11:48 schrieb Thomas Zimmermann: > Hi > > Am 09.10.20 um 11:24 schrieb Simon Ser: >> User-space should avoid parsing EDIDs for metadata already exposed via >> other KMS interfaces and properties. For instance, user-space should not >> try to extract a list of modes from the

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Thomas Zimmermann
Hi Am 09.10.20 um 11:24 schrieb Simon Ser: > User-space should avoid parsing EDIDs for metadata already exposed via > other KMS interfaces and properties. For instance, user-space should not > try to extract a list of modes from the EDID: the kernel might mutate > the mode list (because of link

Re: [PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Daniel Vetter
On Fri, Oct 9, 2020 at 11:24 AM Simon Ser wrote: > > User-space should avoid parsing EDIDs for metadata already exposed via > other KMS interfaces and properties. For instance, user-space should not > try to extract a list of modes from the EDID: the kernel might mutate > the mode list (because

[PATCH] drm: document that user-space should avoid parsing EDIDs

2020-10-09 Thread Simon Ser
User-space should avoid parsing EDIDs for metadata already exposed via other KMS interfaces and properties. For instance, user-space should not try to extract a list of modes from the EDID: the kernel might mutate the mode list (because of link capabilities or quirks for instance). Other metadata