Bug 1029146 - 1 line of corruption at the right end and bottom of the screen with G200 Server line
1 line of corruption at the right end and bottom of the screen with G200 Serv...
Status: NEW
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: xorg-x11-drv-mga (Show other bugs)
All Linux
unspecified Severity high
: rc
: ---
Assigned To: Adam Jackson
Desktop QE
Depends On:
  Show dependency treegraph
Reported: 2013-11-11 13:47 EST by Matrox
Modified: 2017-09-14 07:45 EDT (History)
2 users (show)

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Attachments (Terms of Use)
Modified patch file (1.05 KB, patch)
2013-11-11 13:47 EST, Matrox
no flags Details | Diff

  None (edit)
Description Matrox 2013-11-11 13:47:23 EST
Created attachment 822563 [details]
Modified patch file

Description of problem:

With every resolution a line of invalid data is visible at right end of the display. There's another line corrupted at the bottom of the screen. 

Version-Release number of selected component (if applicable):

How reproducible:

Reproduce with every resolution and every time. I was able to reproduce the issue the problem with Red Hat 6.3, 6.4 and 6.5 (Beta).

Steps to Reproduce:

Actual results:

The last line ( vertical and horizontal) is corrupted.

Expected results:

Additional info:

The clipping code added in the patch mga-1.6.1-shadowfb-clip.patch contains a minor bug. I've included the modified patch file that fixes the problem. It was tested with every products concerned.

-	pbox->x2 = min(pbox->x2, pScrn->pScreen->width - 1);
-	pbox->y2 = min(pbox->y2, pScrn->pScreen->height - 1);

+	pbox->x2 = min(pbox->x2, pScrn->pScreen->width);
+	pbox->y2 = min(pbox->y2, pScrn->pScreen->height);
Comment 3 RHEL Product and Program Management 2013-11-15 11:16:58 EST
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Comment 4 Matrox 2015-06-18 15:24:35 EDT
Any updates on that bug?

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